WesWorld

Nampula , laid down 1908, rebuild 1924, sold to Peru 1931
Oudtshoorn , laid down 1908, rebuild 1924, sold to Peru 1931
Kimberley , laid down 1909, rebuild 1924, scrapped 1938
Welkom , laid down 1909, rebuild 1924, scrapped 1939





Original Data

Displacement:
3.717 t light; 3.829 t standard; 4.248 t normal; 4.566 t full load
Loading submergence 304 tons/feet

Dimensions:
419,95 ft x 42,65 ft x 18,04 ft (normal load)
128,00 m x 13,00 m x 5,50 m

Armament:
8 - 4,13" / 105 mm guns
8 - 2,17" / 55 mm guns
Weight of broadside 323 lbs / 147 kg
4 - 21,0" / 533 mm above water torpedoes

Armour:
Belt 1,97" / 50 mm, upper belt 0,79" / 20 mm, end belts 0,79" / 20 mm
Belts cover 130% of normal area
Main gun shields 1,57" / 40 mm, 2nd gun shields 0,98" / 25 mm
Armour deck 1,18" / 30 mm, Conning tower 3,94" / 100 mm

Machinery:
Coal fired boilers, steam turbines,
Direct drive, 2 shafts, 28.441 shp / 21.217 Kw = 27,00 kts
(Trials with 9.5% overload for 23011 shaft kw = 27.55 knots)
Range 5.100nm at 10,00 kts

Complement:
263 - 342

Cost:
£0,385 million / $1,541 million

Distribution of weights at normal displacement:
Armament: 40 tons, 1,0%
Armour: 636 tons, 15,0%
Belts: 360 tons, 8,5%, Armament: 21 tons, 0,5%, Armour Deck: 233 tons, 5,5%
Conning Tower: 22 tons, 0,5%, Torpedo bulkhead: 0 tons, 0,0%
Machinery: 1.580 tons, 37,2%
Hull, fittings & equipment: 1.460 tons, 34,4%
Fuel, ammunition & stores: 531 tons, 12,5%
Miscellaneous weights: 0 tons, 0,0%

Metacentric height 2,1

Remarks:
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1,27
Shellfire needed to sink: 3.004 lbs / 1.362 Kg = 85,0 x 4,1 " / 105 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 0,7
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 70 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0,11
Relative quality as seaboat: 1,22

Hull form characteristics:
Block coefficient: 0,460
Sharpness coefficient: 0,32
Hull speed coefficient 'M': 7,93
'Natural speed' for length: 20,49 kts
Power going to wave formation at top speed: 55 %
Trim: 57
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 128,0%
Relative accommodation and working space: 96,3%
(Average = 100%)
Displacement factor: 103%
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 1,03
(Structure weight / hull surface area: 74 lbs / square foot or 362 Kg / square metre)
Relative longitudinal hull strength: 1,67
(for 14,76 ft / 4,50 m average freeboard, freeboard adjustment 2,00 ft)
Relative composite hull strength: 1,08

After modernisation



Displacement:
3.961 t light; 4.110 t standard; 4.497 t normal; 4.789 t full load
Loading submergence 312 tons/feet

Dimensions:
428,15 ft x 42,65 ft x 18,54 ft (normal load)
130,50 m x 13,00 m x 5,65 m

Armament:
6 - 5,91" / 150 mm guns
4 - 3,46" / 88 mm guns
6 - 1,57" / 40 mm AA guns
8 - 0,79" / 20 mm guns
Weight of broadside 715 lbs / 324 kg
6 - 21,0" / 533 mm above water torpedoes

Armour:
Belt 1,97" / 50 mm, ends unarmoured
Belts cover 143% of normal area
Main gun shields 1,57" / 40 mm, 2nd gun shields 0,98" / 25 mm
AA gun shields 0,98" / 25 mm
Armour deck 1,18" / 30 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 53.619 shp / 40.000 Kw = 31,31 kts
Range 7.500nm at 12,00 kts

Complement:
274 - 356

Cost:
£1,420 million / $5,681 million

Distribution of weights at normal displacement:
Armament: 89 tons, 2,0%
Armour: 517 tons, 11,5%
Belts: 252 tons, 5,6%, Armament: 27 tons, 0,6%, Armour Deck: 239 tons, 5,3%
Conning Tower: 0 tons, 0,0%, Torpedo bulkhead: 0 tons, 0,0%
Machinery: 1.756 tons, 39,0%
Hull, fittings & equipment: 1.599 tons, 35,5%
Fuel, ammunition & stores: 536 tons, 11,9%
Miscellaneous weights: 0 tons, 0,0%

Metacentric height 1,8

Remarks:
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1,13
Shellfire needed to sink: 2.515 lbs / 1.141 Kg = 24,4 x 5,9 " / 150 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 0,6
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 70 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0,29
Relative quality as seaboat: 1,01

Hull form characteristics:
Block coefficient: 0,465
Sharpness coefficient: 0,32
Hull speed coefficient 'M': 7,93
'Natural speed' for length: 20,69 kts
Power going to wave formation at top speed: 62 %
Trim: 70
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 141,7%
Relative accommodation and working space: 94,6%
(Average = 100%)
Displacement factor: 94%
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0,93
(Structure weight / hull surface area: 77 lbs / square foot or 375 Kg / square metre)
Relative longitudinal hull strength: 1,84
(for 16,08 ft / 4,90 m average freeboard, freeboard adjustment 3,17 ft)
Relative composite hull strength: 1,00

Pietermaritzburg , laid down 1910, scrapped 1925
Beira , laid down 1911, scrapped 1925
Wankie , laid down 1911, scrapped 1925
Likasi , laid down 1911, sunk 1914 (internal explosion)
Blantyre , laid down 1912, scrapped 1925
Douala , laid down 1912 , scrapped 1926



Displacement:
3.828 t light; 3.950 t standard; 4.455 t normal; 4.842 t full load
Loading submergence 319 tons/feet

Dimensions:
433,07 ft x 43,38 ft x 18,04 ft (normal load)
132,00 m x 13,22 m x 5,50 m

Armament:
10 - 4,13" / 105 mm guns
8 - 2,17" / 55 mm guns
Weight of broadside 394 lbs / 179 kg
4 - 21,0" / 533 mm above water torpedoes

Armour:
Belt 1,97" / 50 mm, upper belt 1,38" / 35 mm, end belts 0,98" / 25 mm
Belts cover 123% of normal area
Main gun shields 1,57" / 40 mm, 2nd gun shields 0,98" / 25 mm
Armour deck 1,18" / 30 mm, Conning tower 3,94" / 100 mm

Machinery:
Coal and oil fired boilers, steam turbines,
Direct drive, 2 shafts, 35.901 shp / 26.782 Kw = 28,50 kts
(Trials with 10% overload for 29460 shaft kw = 29,175 knots)
Range 7.900nm at 10,00 kts

Complement:
272 - 354

Cost:
£0,393 million / $1,572 million

Distribution of weights at normal displacement:
Armament: 49 tons, 1,1%
Armour: 724 tons, 16,2%
Belts: 431 tons, 9,7%, Armament: 26 tons, 0,6%, Armour Deck: 244 tons, 5,5%
Conning Tower: 23 tons, 0,5%, Torpedo bulkhead: 0 tons, 0,0%
Machinery: 1.554 tons, 34,9%
Hull, fittings & equipment: 1.481 tons, 33,2%
Fuel, ammunition & stores: 627 tons, 14,1%
Miscellaneous weights: 20 tons, 0,4%

Metacentric height 2,0

Remarks:
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1,21
Shellfire needed to sink: 3.463 lbs / 1.571 Kg = 98,0 x 4,1 " / 105 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 0,8
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 71 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0,14
Relative quality as seaboat: 1,20

Hull form characteristics:
Block coefficient: 0,460
Sharpness coefficient: 0,32
Hull speed coefficient 'M': 8,05
'Natural speed' for length: 20,81 kts
Power going to wave formation at top speed: 57 %
Trim: 59
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 122,2%
Relative accommodation and working space: 104,4%
(Average = 100%)
Displacement factor: 105%
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0,95
(Structure weight / hull surface area: 71 lbs / square foot or 347 Kg / square metre)
Relative longitudinal hull strength: 1,59
(for 15,65 ft / 4,77 m average freeboard, freeboard adjustment 2,77 ft)
Relative composite hull strength: 1,00

Port Shepstone , laid down 1913, rebuild 1927, sold to Australia 1939
Port St. Johns , laid down 1913, rebuild 1927, sold to Australia 1939
Port Alfred , laid down 1914, rebuild 1927, sold to Australia 1939
Port Nolloth , laid down 1914, rebuild 1928, sunk 22-05-35 (torpedo)
Port Elizabeth , laid down 1915, rebuild 1928, sunk 17-03-35 (gunfire)
Porto Alegre , laid down 1915, rebuild 1928, sold to Australia 1939



Original data

Displacement:
4.449 t light; 4.639 t standard; 5.162 t normal; 5.581 t full load

Dimensions: Length overall / water x beam x draught
448,15 ft / 442,91 ft x 44,29 ft x 19,03 ft (normal load)
136,59 m / 135,00 m x 13,50 m x 5,80 m

Armament:
8 - 5,91" / 150 mm guns in single mounts, 102,98lbs / 46,71kg shells, 1913 Model
Breech loading guns in deck mounts
on centreline, evenly spread, 1 raised mount
8 - 3,46" / 88,0 mm guns in single mounts, 20,79lbs / 9,43kg shells, 1913 Model
Breech loading guns in deck mounts
on side, all amidships
Weight of broadside 990 lbs / 449 kg
Shells per gun, main battery: 150
4 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1,97" / 50 mm 354,00 ft / 107,90 m 11,48 ft / 3,50 m
Ends: Unarmoured
Upper: 1,18" / 30 mm 286,09 ft / 87,20 m 4,92 ft / 1,50 m
Main Belt covers 123% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,97" / 50 mm - -
2nd: 0,98" / 25 mm - -

- Armour deck: 1,18" / 30 mm, Conning tower: 3,94" / 100 mm

Machinery:
Coal and oil fired boilers, steam turbines,
Geared drive, 2 shafts, 40.222 shp / 30.006 Kw = 28,65 kts
Range 8.700nm at 10,00 kts
Bunker at max displacement = 941 tons (50% coal)

Complement:
303 - 395

Cost:
£0,535 million / $2,142 million

Distribution of weights at normal displacement:
Armament: 124 tons, 2,4%
Armour: 767 tons, 14,9%
- Belts: 392 tons, 7,6%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 68 tons, 1,3%
- Armour Deck: 282 tons, 5,5%
- Conning Tower: 25 tons, 0,5%
Machinery: 1.651 tons, 32,0%
Hull, fittings & equipment: 1.887 tons, 36,6%
Fuel, ammunition & stores: 713 tons, 13,8%
Miscellaneous weights: 20 tons, 0,4%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3.725 lbs / 1.689 Kg = 36,2 x 5,9 " / 150 mm shells or 0,8 torpedoes
Stability (Unstable if below 1.00): 1,26
Metacentric height 2,2 ft / 0,7 m
Roll period: 12,4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,26
Seaboat quality (Average = 1.00): 1,16

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0,484
Length to Beam Ratio: 10,00 : 1
'Natural speed' for length: 21,05 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 60
Bow angle (Positive = bow angles forward): 5,00 degrees
Stern overhang: 3,28 ft / 1,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22,31 ft / 6,80 m
- Forecastle (30%): 21,00 ft / 6,40 m (13,12 ft / 4,00 m aft of break)
- Mid (50%): 13,12 ft / 4,00 m
- Quarterdeck (20%): 13,12 ft / 4,00 m
- Stern: 13,12 ft / 4,00 m
- Average freeboard: 15,64 ft / 4,77 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 122,7%
- Above water (accommodation/working, high = better): 91,4%
Waterplane Area: 12.883 Square feet or 1.197 Square metres
Displacement factor (Displacement / loading): 102%
Structure weight / hull surface area: 82 lbs/sq ft or 402 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1,10
- Longitudinal: 2,00
- Overall: 1,17
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform


After modernisation



Displacement:
4.348 t light; 4.537 t standard (4.500 t officially); 5.162 t normal; 5.662 t full load

Dimensions: Length overall / water x beam x draught
451,51 ft / 442,91 ft x 44,29 ft x 19,03 ft (normal load)
137,62 m / 135,00 m x 13,50 m x 5,80 m

Armament:
8 - 5,91" / 150 mm guns (4x2 guns), 102,98lbs / 46,71kg shells, 1913 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread, 2 raised mounts - superfiring
4 - 4,13" / 105 mm guns in single mounts, 35,32lbs / 16,02kg shells, 1926 Model
Anti-aircraft guns in deck mounts
on side, all amidships
8 - 1,57" / 40,0 mm guns (4x2 guns), 1,95lbs / 0,88kg shells, 1913 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
10 - 0,79" / 20,0 mm guns (6 mounts), 0,24lbs / 0,11kg shells, 1913 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 983 lbs / 446 kg
Shells per gun, main battery: 150
6 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1,97" / 50 mm 420,60 ft / 128,20 m 11,48 ft / 3,50 m
Ends: Unarmoured
Upper: 0,79" / 20 mm 286,09 ft / 87,20 m 8,20 ft / 2,50 m
Main Belt covers 146% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,38" / 35 mm 0,79" / 20 mm -
2nd: 0,79" / 20 mm - -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 1,18" / 30 mm, Conning tower: 1,18" / 30 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 64.344 shp / 48.000 Kw = 32,10 kts
Range 7.000nm at 15,00 kts
Bunker at max displacement = 1.125 tons

Complement:
303 - 395

Cost:
£0,589 million / $2,355 million

Distribution of weights at normal displacement:
Armament: 123 tons, 2,4%
Armour: 775 tons, 15,0%
- Belts: 449 tons, 8,7%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 37 tons, 0,7%
- Armour Deck: 282 tons, 5,5%
- Conning Tower: 8 tons, 0,1%
Machinery: 2.031 tons, 39,3%
Hull, fittings & equipment: 1.399 tons, 27,1%
Fuel, ammunition & stores: 814 tons, 15,8%
Miscellaneous weights: 20 tons, 0,4%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2.332 lbs / 1.058 Kg = 22,6 x 5,9 " / 150 mm shells or 0,6 torpedoes
Stability (Unstable if below 1.00): 1,32
Metacentric height 2,4 ft / 0,7 m
Roll period: 11,9 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0,35
Seaboat quality (Average = 1.00): 1,16

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,484
Length to Beam Ratio: 10,00 : 1
'Natural speed' for length: 21,05 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 61
Bow angle (Positive = bow angles forward): 20,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23,62 ft / 7,20 m
- Forecastle (30%): 21,00 ft / 6,40 m
- Mid (55%): 21,00 ft / 6,40 m (13,12 ft / 4,00 m aft of break)
- Quarterdeck (20%): 13,12 ft / 4,00 m
- Stern: 13,12 ft / 4,00 m
- Average freeboard: 17,77 ft / 5,42 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 146,1%
- Above water (accommodation/working, high = better): 109,1%
Waterplane Area: 12.883 Square feet or 1.197 Square metres
Displacement factor (Displacement / loading): 88%
Structure weight / hull surface area: 56 lbs/sq ft or 275 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,68
- Longitudinal: 1,90
- Overall: 0,76
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

Santa Fé , laid down 1916, rebuild 1929
Pelotas , laid down 1916, rebuild 1929, sunk 30-09-35 (bomb)
Santa Maria , laid down 1916, rebuild 1929, sold to China 1943
Rio Grande , laid down 1917, rebuild 1929, sold to China 1943
Santana , laid down 1917, rebuild 1930
Paraná , laid down 1918, rebuild 1930



Displacement:
4.450 t light; 4.641 t standard; 5.200 t normal; 5.648 t full load

Dimensions: Length overall / water x beam x draught
456,04 ft / 452,76 ft x 47,24 ft x 18,70 ft (normal load)
139,00 m / 138,00 m x 14,40 m x 5,70 m

Armament:
8 - 5,91" / 150 mm guns in single mounts, 102,98lbs / 46,71kg shells, 1916 Model
Breech loading guns in deck mounts
on centreline, evenly spread, 2 raised mounts
8 - 3,46" / 88,0 mm guns in single mounts, 20,79lbs / 9,43kg shells, 1916 Model
Breech loading guns in deck mounts
on side, all amidships
Weight of broadside 990 lbs / 449 kg
Shells per gun, main battery: 150
4 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2,76" / 70 mm 375,98 ft / 114,60 m 9,19 ft / 2,80 m
Ends: Unarmoured
Upper: 1,57" / 40 mm 295,28 ft / 90,00 m 4,92 ft / 1,50 m
Main Belt covers 128% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,38" / 35 mm 0,59" / 15 mm -
2nd: 0,79" / 20 mm 0,59" / 15 mm -

- Armour deck: 1,18" / 30 mm, Conning tower: 3,15" / 80 mm

Machinery:
Coal and oil fired boilers, steam turbines,
Geared drive, 2 shafts, 45.576 shp / 34.000 Kw = 29,65 kts
Range 11.000nm at 10,00 kts
Bunker at max displacement = 1.007 tons (35% coal)

Complement:
306 - 398

Cost:
£0,827 million / $3,307 million

Distribution of weights at normal displacement:
Armament: 124 tons, 2,4%
Armour: 843 tons, 16,2%
- Belts: 477 tons, 9,2%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 46 tons, 0,9%
- Armour Deck: 299 tons, 5,8%
- Conning Tower: 20 tons, 0,4%
Machinery: 1.754 tons, 33,7%
Hull, fittings & equipment: 1.730 tons, 33,3%
Fuel, ammunition & stores: 750 tons, 14,4%
Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3.717 lbs / 1.686 Kg = 36,1 x 5,9 " / 150 mm shells or 0,8 torpedoes
Stability (Unstable if below 1.00): 1,30
Metacentric height 2,6 ft / 0,8 m
Roll period: 12,3 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,22
Seaboat quality (Average = 1.00): 1,09

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,455
Length to Beam Ratio: 9,58 : 1
'Natural speed' for length: 21,28 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 64
Bow angle (Positive = bow angles forward): 0,00 degrees
Stern overhang: 3,28 ft / 1,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21,33 ft / 6,50 m
- Forecastle (30%): 20,34 ft / 6,20 m
- Mid (40%): 20,34 ft / 6,20 m (12,47 ft / 3,80 m aft of break)
- Quarterdeck (15%): 12,47 ft / 3,80 m
- Stern: 12,47 ft / 3,80 m
- Average freeboard: 15,73 ft / 4,80 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 127,7%
- Above water (accommodation/working, high = better): 103,3%
Waterplane Area: 13.700 Square feet or 1.273 Square metres
Displacement factor (Displacement / loading): 97%
Structure weight / hull surface area: 74 lbs/sq ft or 363 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,95
- Longitudinal: 1,63
- Overall: 1,00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform


After modernisation



Displacement:
4.598 t light; 4.812 t standard; 5.351 t normal; 5.782 t full load

Dimensions: Length overall / water x beam x draught
477,81 ft / 465,88 ft x 47,24 ft x 18,70 ft (normal load)
145,64 m / 142,00 m x 14,40 m x 5,70 m

Armament:
8 - 5,91" / 150 mm guns (4x2 guns), 102,98lbs / 46,71kg shells, 1916 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 3,46" / 88,0 mm guns (4x2 guns), 20,79lbs / 9,43kg shells, 1916 Model
Breech loading guns in deck mounts
on side, all amidships
8 - 1,57" / 40,0 mm guns (4x2 guns), 1,95lbs / 0,88kg shells, 1924 Model
Breech loading guns in deck mounts
on side, evenly spread
8 - 0,79" / 20,0 mm guns (4x2 guns), 0,24lbs / 0,11kg shells, 1924 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 1.008 lbs / 457 kg
Shells per gun, main battery: 180
6 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2,36" / 60 mm 435,04 ft / 132,60 m 9,19 ft / 2,80 m
Ends: Unarmoured
Upper: 1,38" / 35 mm 295,28 ft / 90,00 m 8,04 ft / 2,45 m
Main Belt covers 144% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,38" / 35 mm 0,59" / 15 mm -
2nd: 0,79" / 20 mm - -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 1,38" / 35 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 67.024 shp / 50.000 Kw = 32,55 kts
Range 6.000nm at 15,00 kts
Bunker at max displacement = 971 tons

Complement:
312 - 406

Cost:
£0,908 million / $3,632 million

Distribution of weights at normal displacement:
Armament: 126 tons, 2,4%
Armour: 907 tons, 17,0%
- Belts: 506 tons, 9,5%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 41 tons, 0,8%
- Armour Deck: 359 tons, 6,7%
- Conning Tower: 0 tons, 0,0%
Machinery: 2.058 tons, 38,5%
Hull, fittings & equipment: 1.476 tons, 27,6%
Fuel, ammunition & stores: 753 tons, 14,1%
Miscellaneous weights: 30 tons, 0,6%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2.385 lbs / 1.082 Kg = 23,2 x 5,9 " / 150 mm shells or 0,6 torpedoes
Stability (Unstable if below 1.00): 1,27
Metacentric height 2,5 ft / 0,8 m
Roll period: 12,5 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,25
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,455
Length to Beam Ratio: 9,86 : 1
'Natural speed' for length: 21,58 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 25,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25,59 ft / 7,80 m
- Forecastle (30%): 21,00 ft / 6,40 m
- Mid (42%): 20,34 ft / 6,20 m (12,47 ft / 3,80 m aft of break)
- Quarterdeck (15%): 12,47 ft / 3,80 m
- Stern: 12,47 ft / 3,80 m
- Average freeboard: 16,56 ft / 5,05 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 143,7%
- Above water (accommodation/working, high = better): 99,7%
Waterplane Area: 14.097 Square feet or 1.310 Square metres
Displacement factor (Displacement / loading): 88%
Structure weight / hull surface area: 60 lbs/sq ft or 293 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,74
- Longitudinal: 1,39
- Overall: 0,79
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

Yaoundé , laid down 1919, refitted 1931
Brazzaville , laid down 1919, refitted 1932
Port Gentil , laid down 1920, refitted 1932
Bata , laid down 1920, refitted 1932



Displacement:
4.952 t light; 5.165 t standard; 5.660 t normal; 6.033 t full load
Loading submergence 384 tons/feet

Dimensions:
475,72 ft x 47,57 ft x 19,03 ft (normal load)
145,00 m x 14,50 m x 5,80 m

Armament:
10 - 5,91" / 150 mm guns
8 - 3,46" / 88 mm guns
Weight of broadside 1.196 lbs / 543 kg

Armour:
Belt 3,15" / 80 mm, upper belt 0,98" / 25 mm, ends unarmoured
Belts cover 116% of normal area
Main gun shields 1,97" / 50 mm, 2nd gun shields 0,98" / 25 mm
Armour deck 1,38" / 35 mm, Conning tower 5,91" / 150 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 46.933 shp / 35.012 Kw = 29,65 kts
(Trials with 14,3% overload for 40000 shaft kw = 30.64 knots)
Range 11.200nm at 10,00 kts

Complement:
326 - 424

Cost:
£1,161 million / $4,645 million

Distribution of weights at normal displacement:
Armament: 150 tons, 2,6%
Armour: 933 tons, 16,5%
Belts: 499 tons, 8,8%, Armament: 50 tons, 0,9%, Armour Deck: 343 tons, 6,1%
Conning Tower: 40 tons, 0,7%, Torpedo bulkhead: 0 tons, 0,0%
Machinery: 1.667 tons, 29,4%
Hull, fittings & equipment: 2.204 tons, 38,9%
Fuel, ammunition & stores: 707 tons, 12,5%
Miscellaneous weights: 0 tons, 0,0%

Metacentric height 2,0

Remarks:
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1,11
Shellfire needed to sink: 4.682 lbs / 2.124 Kg = 45,5 x 5,9 " / 150 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 0,9
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 70 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0,34
Relative quality as seaboat: 1,12

Hull form characteristics:
Block coefficient: 0,460
Sharpness coefficient: 0,32
Hull speed coefficient 'M': 8,16
'Natural speed' for length: 21,81 kts
Power going to wave formation at top speed: 56 %
Trim: 63
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 116,0%
Relative accommodation and working space: 128,9%
(Average = 100%)
Displacement factor: 104%
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 1,00
(Structure weight / hull surface area: 90 lbs / square foot or 439 Kg / square metre)
Relative longitudinal hull strength: 1,70
(for 16,40 ft / 5,00 m average freeboard, freeboard adjustment 2,89 ft)
Relative composite hull strength: 1,06


After refit



Displacement:
4.781 t light; 5.028 t standard; 5.660 t normal; 6.165 t full load

Dimensions: Length overall / water x beam x draught
486,53 ft / 475,72 ft x 47,57 ft x 19,03 ft (normal load)
148,30 m / 145,00 m x 14,50 m x 5,80 m

Armament:
8 - 5,91" / 150 mm guns (4x2 guns), 102,98lbs / 46,71kg shells, 1919 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 4,13" / 105 mm guns (4x2 guns), 35,32lbs / 16,02kg shells, 1931 Model
Quick firing guns in deck mounts
on side, evenly spread, 2 raised mounts
8 - 1,57" / 40,0 mm guns (4x2 guns), 1,95lbs / 0,88kg shells, 1928 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
6 - 0,79" / 20,0 mm guns in single mounts, 0,24lbs / 0,11kg shells, 1929 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 1.123 lbs / 510 kg
Shells per gun, main battery: 200
6 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3,15" / 80 mm 362,53 ft / 110,50 m 8,53 ft / 2,60 m
Ends: Unarmoured
Upper: 0,98" / 25 mm 196,85 ft / 60,00 m 7,87 ft / 2,40 m
Main Belt covers 117% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,38" / 35 mm 0,79" / 20 mm -
2nd: 0,79" / 20 mm - -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 1,38" / 35 mm, Conning tower: 5,91" / 150 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 46.917 shp / 35.000 Kw = 29,66 kts
Range 6.000nm at 15,00 kts
Bunker at max displacement = 1.137 tons

Complement:
326 - 424

Cost:
£1,131 million / $4,526 million

Distribution of weights at normal displacement:
Armament: 140 tons, 2,5%
Armour: 921 tons, 16,3%
- Belts: 464 tons, 8,2%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 46 tons, 0,8%
- Armour Deck: 371 tons, 6,6%
- Conning Tower: 40 tons, 0,7%
Machinery: 1.666 tons, 29,4%
Hull, fittings & equipment: 2.034 tons, 35,9%
Fuel, ammunition & stores: 878 tons, 15,5%
Miscellaneous weights: 20 tons, 0,4%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4.870 lbs / 2.209 Kg = 47,3 x 5,9 " / 150 mm shells or 0,9 torpedoes
Stability (Unstable if below 1.00): 1,24
Metacentric height 2,4 ft / 0,7 m
Roll period: 12,8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,29
Seaboat quality (Average = 1.00): 1,08

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,460
Length to Beam Ratio: 10,00 : 1
'Natural speed' for length: 21,81 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 65
Bow angle (Positive = bow angles forward): 15,00 degrees
Stern overhang: 4,92 ft / 1,50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21,98 ft / 6,70 m
- Forecastle (20%): 19,36 ft / 5,90 m
- Mid (46%): 19,36 ft / 5,90 m (11,48 ft / 3,50 m aft of break)
- Quarterdeck (15%): 11,48 ft / 3,50 m
- Stern: 11,48 ft / 3,50 m
- Average freeboard: 15,31 ft / 4,67 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 115,9%
- Above water (accommodation/working, high = better): 101,7%
Waterplane Area: 14.556 Square feet or 1.352 Square metres
Displacement factor (Displacement / loading): 105%
Structure weight / hull surface area: 83 lbs/sq ft or 405 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1,03
- Longitudinal: 1,57
- Overall: 1,08
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

Libreville , laid down 1921, refitted 1933
Maroua , laid down 1921, refitted 1934
St Denis , laid down 1921, refitted 1934
Iringa , laid down 1921, refitted 1935



Displacement:
5.348 t light; 5.555 t standard (5.500 t officially); 6.134 t normal; 6.573 t full load
Loading submergence 472 tons/feet

Dimensions:
498,69 ft x 54,13 ft x 16,57 ft (normal load)
152,00 m x 16,50 m x 5,05 m

Armament:
8 - 5,91" / 150 mm guns
8 - 3,46" / 88 mm guns
8 - 1,57" / 40 mm AA guns
8 - 0,79" / 20 mm guns
Weight of broadside 1.008 lbs / 457 kg
4 - 21,0" / 533 mm above water torpedoes

Armour:
Belt 2,36" / 60 mm, ends unarmoured
Belts cover 122% of normal area
Main gun shields 1,97" / 50 mm, 2nd gun shields 0,98" / 25 mm
AA gun shields 0,98" / 25 mm
Armour deck 1,57" / 40 mm, Conning tower 1,18" / 30 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 57.640 shp / 43.000 Kw = 30,80 kts
Range 9.000nm at 12,00 kts

Complement:
346 - 450

Cost:
£1,453 million / $5,813 million

Distribution of weights at normal displacement:
Armament: 126 tons, 2,1%
Armour: 876 tons, 14,3%
Belts: 341 tons, 5,6%, Armament: 46 tons, 0,7%, Armour Deck: 481 tons, 7,8%
Conning Tower: 9 tons, 0,1%, Torpedo bulkhead: 0 tons, 0,0%
Machinery: 1.985 tons, 32,4%
Hull, fittings & equipment: 2.311 tons, 37,7%
Fuel, ammunition & stores: 786 tons, 12,8%
Miscellaneous weights: 50 tons, 0,8%

Metacentric height 2,8

Remarks:
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1,20
Shellfire needed to sink: 5.123 lbs / 2.324 Kg = 49,7 x 5,9 " / 150 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1,0
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 71 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0,18
Relative quality as seaboat: 1,00

Hull form characteristics:
Block coefficient: 0,480
Sharpness coefficient: 0,33
Hull speed coefficient 'M': 8,33
'Natural speed' for length: 22,33 kts
Power going to wave formation at top speed: 59 %
Trim: 71
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 121,7%
Relative accommodation and working space: 133,9%
(Average = 100%)
Displacement factor: 104%
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0,97
(Structure weight / hull surface area: 86 lbs / square foot or 422 Kg / square metre)
Relative longitudinal hull strength: 1,31
(for 16,40 ft / 5,00 m average freeboard, freeboard adjustment 2,67 ft)
Relative composite hull strength: 1,00


After refit



Displacement:
5.341 t light; 5.553 t standard (5.500 t officially); 6.134 t normal; 6.599 t full load

Dimensions: Length overall / water x beam x draught
513,43 ft / 498,69 ft x 54,13 ft x 16,57 ft (normal load)
156,49 m / 152,00 m x 16,50 m x 5,05 m

Armament:
8 - 5,91" / 150 mm guns (4x2 guns), 102,98lbs / 46,71kg shells, 1921 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 3,46" / 88,0 mm guns (4x2 guns), 20,79lbs / 9,43kg shells, 1921 Model
Breech loading guns in deck mounts
on side, all amidships, all raised mounts - superfiring
8 - 1,57" / 40,0 mm guns (4x2 guns), 1,95lbs / 0,88kg shells, 1921 Model
Breech loading guns in deck mounts
on side, evenly spread, all raised mounts
20 - 0,79" / 20,0 mm guns (10 mounts), 0,24lbs / 0,11kg shells, 1921 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 1.011 lbs / 458 kg
Shells per gun, main battery: 150
6 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2,36" / 60 mm 395,34 ft / 120,50 m 10,50 ft / 3,20 m
Ends: Unarmoured
Main Belt covers 122% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,97" / 50 mm 0,98" / 25 mm -
2nd: 0,98" / 25 mm 0,59" / 15 mm -
3rd: 0,98" / 25 mm - -
4th: 0,59" / 15 mm - -

- Armour deck: 1,57" / 40 mm, Conning tower: 1,18" / 30 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 57.641 shp / 43.000 Kw = 30,80 kts
Range 9.000nm at 12,00 kts
Bunker at max displacement = 1.046 tons

Complement:
346 - 450

Cost:
£1,453 million / $5,813 million

Distribution of weights at normal displacement:
Armament: 126 tons, 2,1%
Armour: 984 tons, 16,0%
- Belts: 398 tons, 6,5%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 63 tons, 1,0%
- Armour Deck: 515 tons, 8,4%
- Conning Tower: 9 tons, 0,1%
Machinery: 1.985 tons, 32,4%
Hull, fittings & equipment: 2.196 tons, 35,8%
Fuel, ammunition & stores: 793 tons, 12,9%
Miscellaneous weights: 50 tons, 0,8%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
5.405 lbs / 2.452 Kg = 52,5 x 5,9 " / 150 mm shells or 1,0 torpedoes
Stability (Unstable if below 1.00): 1,33
Metacentric height 3,3 ft / 1,0 m
Roll period: 12,5 seconds
Steadiness - As gun platform (Average = 50 %): 69 %
- Recoil effect (Restricted arc if above 1.00): 0,17
Seaboat quality (Average = 1.00): 1,04

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,480
Length to Beam Ratio: 9,21 : 1
'Natural speed' for length: 22,33 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 67
Bow angle (Positive = bow angles forward): 20,00 degrees
Stern overhang: 5,91 ft / 1,80 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24,28 ft / 7,40 m
- Forecastle (20%): 20,34 ft / 6,20 m
- Mid (45%): 20,34 ft / 6,20 m (12,47 ft / 3,80 m aft of break)
- Quarterdeck (15%): 12,47 ft / 3,80 m
- Stern: 12,47 ft / 3,80 m
- Average freeboard: 16,33 ft / 4,98 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 121,8%
- Above water (accommodation/working, high = better): 135,3%
Waterplane Area: 17.667 Square feet or 1.641 Square metres
Displacement factor (Displacement / loading): 102%
Structure weight / hull surface area: 81 lbs/sq ft or 394 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,97
- Longitudinal: 1,31
- Overall: 1,00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent

Rosario ,laid down 1922, refitted 1941
San Lorenzo , laid down 1922, refitted 1941
Koumba , laid down 1922, refitted 1941
Belinga , laid down 1922, refitted 1941



Displacement:
7.764 t light; 8.056 t standard; 9.246 t normal; 10.198 t full load

Dimensions: Length overall / water x beam x draught
554,17 ft / 541,34 ft x 58,40 ft x 19,69 ft (normal load)
168,91 m / 165,00 m x 17,80 m x 6,00 m

Armament:
8 - 5,91" / 150 mm guns (4x2 guns), 102,98lbs / 46,71kg shells, 1922 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 3,46" / 88,0 mm guns (4x2 guns), 20,79lbs / 9,43kg shells, 1922 Model
Breech loading guns in deck mounts
on side, all amidships, all raised mounts - superfiring
8 - 1,57" / 40,0 mm guns (4x2 guns), 1,95lbs / 0,89kg shells, 1922 Model
Breech loading guns in deck mounts
on side, evenly spread
12 - 0,79" / 20,0 mm guns (6x2 guns), 0,24lbs / 0,11kg shells, 1922 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 1.009 lbs / 458 kg
Shells per gun, main battery: 180
12 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4,72" / 120 mm 355,84 ft / 108,46 m 9,51 ft / 2,90 m
Ends: Unarmoured
Main Belt covers 101% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4,13" / 105 mm 3,15" / 80 mm 4,72" / 120 mm
2nd: 0,98" / 25 mm 0,39" / 10 mm -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 1,97" / 50 mm, Conning tower: 3,94" / 100 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 75.068 shp / 56.000 Kw = 31,01 kts
Range 9.000nm at 15,00 kts
Bunker at max displacement = 2.142 tons

Complement:
470 - 612

Cost:
£2,002 million / $8,009 million

Distribution of weights at normal displacement:
Armament: 126 tons, 1,4%
Armour: 1.825 tons, 19,7%
- Belts: 670 tons, 7,2%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 337 tons, 3,6%
- Armour Deck: 781 tons, 8,5%
- Conning Tower: 37 tons, 0,4%
Machinery: 2.546 tons, 27,5%
Hull, fittings & equipment: 3.216 tons, 34,8%
Fuel, ammunition & stores: 1.482 tons, 16,0%
Miscellaneous weights: 50 tons, 0,5%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
10.278 lbs / 4.662 Kg = 99,8 x 5,9 " / 150 mm shells or 1,4 torpedoes
Stability (Unstable if below 1.00): 1,10
Metacentric height 2,7 ft / 0,8 m
Roll period: 15,0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,31
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,520
Length to Beam Ratio: 9,27 : 1
'Natural speed' for length: 23,27 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 20,00 degrees
Stern overhang: 3,28 ft / 1,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26,25 ft / 8,00 m
- Forecastle (20%): 21,98 ft / 6,70 m
- Mid (50%): 21,98 ft / 6,70 m (14,11 ft / 4,30 m aft of break)
- Quarterdeck (15%): 14,11 ft / 4,30 m
- Stern: 14,11 ft / 4,30 m
- Average freeboard: 18,39 ft / 5,60 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 101,1%
- Above water (accommodation/working, high = better): 114,0%
Waterplane Area: 21.454 Square feet or 1.993 Square metres
Displacement factor (Displacement / loading): 116%
Structure weight / hull surface area: 95 lbs/sq ft or 463 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,97
- Longitudinal: 1,30
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform


After refit

Displacement:
7.750 t light; 8.056 t standard; 9.246 t normal; 10.198 t full load

Dimensions: Length overall / water x beam x draught
554,17 ft / 541,34 ft x 58,40 ft x 19,69 ft (normal load)
168,91 m / 165,00 m x 17,80 m x 6,00 m

Armament:
8 - 5,91" / 150 mm guns (4x2 guns), 102,98lbs / 46,71kg shells, 1922 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 4,13" / 105 mm guns (4x2 guns), 35,32lbs / 16,02kg shells, 1922 Model
Dual purpose guns in deck mounts
on side, all amidships, all raised mounts - superfiring
8 - 1,57" / 40,0 mm guns (4x2 guns), 1,95lbs / 0,88kg shells, 1922 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
12 - 0,79" / 20,0 mm guns (6x2 guns), 0,24lbs / 0,11kg shells, 1922 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 1.125 lbs / 510 kg
Shells per gun, main battery: 180
12 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4,72" / 120 mm 359,15 ft / 109,47 m 9,51 ft / 2,90 m
Ends: Unarmoured
Main Belt covers 102% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4,13" / 105 mm 3,15" / 80 mm 4,72" / 120 mm
2nd: 0,98" / 25 mm 0,98" / 25 mm -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 1,97" / 50 mm, Conning tower: 0,59" / 15 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 75.068 shp / 56.000 Kw = 31,01 kts
Range 9.000nm at 15,00 kts
Bunker at max displacement = 2.142 tons

Complement:
470 - 612

Cost:
£2,034 million / $8,137 million

Distribution of weights at normal displacement:
Armament: 141 tons, 1,5%
Armour: 1.808 tons, 19,6%
- Belts: 675 tons, 7,3%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 346 tons, 3,7%
- Armour Deck: 781 tons, 8,5%
- Conning Tower: 6 tons, 0,1%
Machinery: 2.546 tons, 27,5%
Hull, fittings & equipment: 3.230 tons, 34,9%
Fuel, ammunition & stores: 1.496 tons, 16,2%
Miscellaneous weights: 25 tons, 0,3%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
10.128 lbs / 4.594 Kg = 98,4 x 5,9 " / 150 mm shells or 1,4 torpedoes
Stability (Unstable if below 1.00): 1,11
Metacentric height 2,7 ft / 0,8 m
Roll period: 14,9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,34
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,520
Length to Beam Ratio: 9,27 : 1
'Natural speed' for length: 23,27 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 20,00 degrees
Stern overhang: 3,28 ft / 1,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26,25 ft / 8,00 m
- Forecastle (20%): 21,98 ft / 6,70 m
- Mid (50%): 21,98 ft / 6,70 m (14,11 ft / 4,30 m aft of break)
- Quarterdeck (15%): 14,11 ft / 4,30 m
- Stern: 14,11 ft / 4,30 m
- Average freeboard: 18,39 ft / 5,60 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 102,1%
- Above water (accommodation/working, high = better): 114,0%
Waterplane Area: 21.454 Square feet or 1.993 Square metres
Displacement factor (Displacement / loading): 115%
Structure weight / hull surface area: 95 lbs/sq ft or 465 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,97
- Longitudinal: 1,30
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

Aurora , laid down 1924, refitted 1942
Bellona , laid down 1925, refitted 1942
Carmenta , laid down 1926, refitted 1942
Dira , laid down 1926, refitted 1942



Displacement:
7.919 t light; 8.183 t standard (8.000 t officially); 9.358 t normal; 10.298 t full load

Dimensions: Length overall / water x beam x draught
557,69 ft / 547,90 ft x 58,40 ft x 19,69 ft (normal load)
169,98 m / 167,00 m x 17,80 m x 6,00 m

Armament:
8 - 5,91" / 150 mm guns (4x2 guns), 102,98lbs / 46,71kg shells, 1922 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
6 - 4,13" / 105 mm guns in single mounts, 35,32lbs / 16,02kg shells, 1921 Model
Anti-aircraft guns in deck mounts
on side, all amidships
16 - 1,57" / 40,0 mm guns (5 mounts), 1,95lbs / 0,88kg shells, 1924 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
12 - 0,79" / 20,0 mm guns (7 mounts), 0,24lbs / 0,11kg shells, 1923 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 1.070 lbs / 485 kg
Shells per gun, main battery: 120
12 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4,72" / 120 mm 369,16 ft / 112,52 m 9,84 ft / 3,00 m
Ends: Unarmoured
Main Belt covers 104% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4,13" / 105 mm 2,36" / 60 mm 3,15" / 80 mm
2nd: 0,98" / 25 mm 0,59" / 15 mm -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 1,77" / 45 mm, Conning tower: 3,15" / 80 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 80.429 shp / 60.000 Kw = 31,54 kts
Range 9.000nm at 15,00 kts (Bunkerage = 2.115 tons)

Complement:
475 - 618

Cost:
£2,350 million / $9,401 million

Distribution of weights at normal displacement:
Armament: 134 tons, 1,4%
Armour: 1.727 tons, 18,5%
- Belts: 715 tons, 7,6%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 270 tons, 2,9%
- Armour Deck: 712 tons, 7,6%
- Conning Tower: 30 tons, 0,3%
Machinery: 2.649 tons, 28,3%
Hull, fittings & equipment: 3.360 tons, 35,9%
Fuel, ammunition & stores: 1.438 tons, 15,4%
Miscellaneous weights: 50 tons, 0,5%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
10.800 lbs / 4.899 Kg = 104,9 x 5,9 " / 150 mm shells or 1,4 torpedoes
Stability (Unstable if below 1.00): 1,11
Metacentric height 2,7 ft / 0,8 m
Roll period: 14,8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,37
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0,520
Length to Beam Ratio: 9,38 : 1
'Natural speed' for length: 23,41 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 15,00 degrees
Stern overhang: 3,28 ft / 1,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24,28 ft / 7,40 m
- Forecastle (20%): 20,51 ft / 6,25 m
- Mid (50%): 20,51 ft / 6,25 m
- Quarterdeck (25%): 12,47 ft / 3,80 m (20,51 ft / 6,25 m before break)
- Stern: 12,47 ft / 3,80 m
- Average freeboard: 18,80 ft / 5,73 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 103,6%
- Above water (accommodation/working, high = better): 132,5%
Waterplane Area: 21.714 Square feet or 2.017 Square metres
Displacement factor (Displacement / loading): 115%
Structure weight / hull surface area: 97 lbs/sq ft or 475 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,96
- Longitudinal: 1,37
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

After refit

Aurora, laid down 1924, refitted 1942
Bellona, laid down 1925, refitted 1942
Carmenta, laid down 1926, refitted 1942
Dira, laid down 1926, refitted 1942

Displacement:
7.908 t light; 8.183 t standard; 9.358 t normal; 10.298 t full load

Dimensions: Length overall / water x beam x draught
557,69 ft / 547,90 ft x 58,40 ft x 19,69 ft (normal load)
169,98 m / 167,00 m x 17,80 m x 6,00 m

Armament:
8 - 5,91" / 150 mm guns (4x2 guns), 102,98lbs / 46,71kg shells, 1922 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 4,53" / 115 mm guns (4x2 guns), 46,40lbs / 21,05kg shells, 1940 Model
Dual purpose guns in deck mounts
on side, all amidships
8 - 1,57" / 40,0 mm guns (4x2 guns), 1,95lbs / 0,88kg shells, 1938 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
12 - 0,79" / 20,0 mm guns (2x6 guns), 0,24lbs / 0,11kg shells, 1938 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
6 - 0,79" / 20,0 mm guns in single mounts, 0,24lbs / 0,11kg shells, 1931 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 1.215 lbs / 551 kg
Shells per gun, main battery: 120
6 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4,72" / 120 mm 373,20 ft / 113,75 m 9,84 ft / 3,00 m
Ends: Unarmoured
Main Belt covers 105% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4,13" / 105 mm 2,36" / 60 mm 3,15" / 80 mm
2nd: 0,98" / 25 mm 0,59" / 15 mm -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 1,77" / 45 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 80.429 shp / 60.000 Kw = 31,54 kts
Range 9.000nm at 15,00 kts
Bunker at max displacement = 2.115 tons

Complement:
475 - 618

Cost:
£2,396 million / $9,585 million

Distribution of weights at normal displacement:
Armament: 152 tons, 1,6%
Armour: 1.706 tons, 18,2%
- Belts: 722 tons, 7,7%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 273 tons, 2,9%
- Armour Deck: 712 tons, 7,6%
- Conning Tower: 0 tons, 0,0%
Machinery: 2.649 tons, 28,3%
Hull, fittings & equipment: 3.381 tons, 36,1%
Fuel, ammunition & stores: 1.450 tons, 15,5%
Miscellaneous weights: 20 tons, 0,2%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
10.636 lbs / 4.824 Kg = 103,3 x 5,9 " / 150 mm shells or 1,4 torpedoes
Stability (Unstable if below 1.00): 1,13
Metacentric height 2,8 ft / 0,9 m
Roll period: 14,7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,40
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has low quarterdeck
Block coefficient: 0,520
Length to Beam Ratio: 9,38 : 1
'Natural speed' for length: 23,41 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 15,00 degrees
Stern overhang: 3,28 ft / 1,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24,28 ft / 7,40 m
- Forecastle (20%): 20,51 ft / 6,25 m
- Mid (50%): 20,51 ft / 6,25 m
- Quarterdeck (25%): 12,47 ft / 3,80 m (20,51 ft / 6,25 m before break)
- Stern: 12,47 ft / 3,80 m
- Average freeboard: 18,80 ft / 5,73 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 104,7%
- Above water (accommodation/working, high = better): 155,5%
Waterplane Area: 21.714 Square feet or 2.017 Square metres
Displacement factor (Displacement / loading): 114%
Structure weight / hull surface area: 98 lbs/sq ft or 478 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,96
- Longitudinal: 1,37
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Arion , laid down 1927, rebuild 1943
Sleipnir , laid down 1927, sunk 20-06-35 (gunfire)
Pegasus , laid down 1928, refitted 1935, rebuild 1943
Areion , laid down 1928, sunk 20-06-35 (torpedo)

Original Data




RSAN Sleipner as seen from the destroyer Jujuy five minutes before cruiser Belgrano sank her with torpedoes

Displacement:
5.756 t light; 5.999 t standard; 6.841 t normal; 7.515 t full load

Dimensions: Length overall / water x beam x draught
540,66 ft / 524,93 ft x 50,36 ft x 19,52 ft (normal load)
164,79 m / 160,00 m x 15,35 m x 5,95 m

Armament:
8 - 5,91" / 150 mm guns (4x2 guns), 102,52lbs / 46,50kg shells, 1927 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 3,46" / 88,0 mm guns (4x2 guns), 20,94lbs / 9,50kg shells, 1927 Model
Dual purpose guns in deck mounts
on side, all amidships, 1 raised mount - superfiring
8 - 1,57" / 40,0 mm guns (4x2 guns), 1,98lbs / 0,90kg shells, 1927 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 3 raised mounts
8 - 0,79" / 20,0 mm guns (4x2 guns), 0,26lbs / 0,12kg shells, 1927 Model
Machine guns in deck mounts
on side, evenly spread, 2 raised mounts
Weight of broadside 1.006 lbs / 456 kg
Shells per gun, main battery: 180
16 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1,57" / 40 mm 511,91 ft / 156,03 m 9,84 ft / 3,00 m
Ends: Unarmoured
Main Belt covers 150% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,77" / 45 mm 0,98" / 25 mm 1,38" / 35 mm
2nd: 0,98" / 25 mm 0,39" / 10 mm -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 0,59" / 15 mm, Conning tower: 0,59" / 15 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 90.000 shp / 67.140 Kw = 35,51 kts
Range 8.400nm at 15,00 kts
Bunker at max displacement = 1.516 tons

Complement:
375 - 488

Cost:
£2,564 million / $10,254 million

Distribution of weights at normal displacement:
Armament: 126 tons, 1,8%
Armour: 621 tons, 9,1%
- Belts: 307 tons, 4,5%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 115 tons, 1,7%
- Armour Deck: 194 tons, 2,8%
- Conning Tower: 5 tons, 0,1%
Machinery: 2.841 tons, 41,5%
Hull, fittings & equipment: 2.093 tons, 30,6%
Fuel, ammunition & stores: 1.086 tons, 15,9%
Miscellaneous weights: 75 tons, 1,1%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2.848 lbs / 1.292 Kg = 27,7 x 5,9 " / 150 mm shells or 0,7 torpedoes
Stability (Unstable if below 1.00): 1,16
Metacentric height 2,4 ft / 0,7 m
Roll period: 13,8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,50
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0,464
Length to Beam Ratio: 10,42 : 1
'Natural speed' for length: 26,18 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 30,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 27,23 ft / 8,30 m
- Forecastle (27%): 22,64 ft / 6,90 m
- Mid (50%): 22,64 ft / 6,90 m (14,76 ft / 4,50 m aft of break)
- Quarterdeck (15%): 14,76 ft / 4,50 m
- Stern: 14,76 ft / 4,50 m
- Average freeboard: 19,20 ft / 5,85 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 150,0%
- Above water (accommodation/working, high = better): 94,0%
Waterplane Area: 17.728 Square feet or 1.647 Square metres
Displacement factor (Displacement / loading): 93%
Structure weight / hull surface area: 67 lbs/sq ft or 325 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,70
- Longitudinal: 1,45
- Overall: 0,75
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

After Rebuild

Displacement:
5.756 t light; 6.057 t standard; 6.841 t normal; 7.469 t full load

Dimensions: Length overall / water x beam x draught
543,12 ft / 524,93 ft x 50,36 ft x 19,52 ft (normal load)
165,54 m / 160,00 m x 15,35 m x 5,95 m

Armament:
8 - 5,91" / 150 mm guns (4x2 guns), 110,23lbs / 50,00kg shells, 1927 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
16 - 2,95" / 75,0 mm guns (8x2 guns), 12,87lbs / 5,84kg shells, 1942 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships, 4 raised mounts - superfiring
8 - 1,57" / 40,0 mm guns (4x2 guns), 1,98lbs / 0,90kg shells, 1927 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 3 raised mounts
8 - 0,79" / 20,0 mm guns (4x2 guns), 0,26lbs / 0,12kg shells, 1927 Model
Machine guns in deck mounts
on side, evenly spread, 2 raised mounts
Weight of broadside 1.106 lbs / 502 kg
Shells per gun, main battery: 250
16 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1,57" / 40 mm 511,91 ft / 156,03 m 9,84 ft / 3,00 m
Ends: Unarmoured
Main Belt covers 150% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3,54" / 90 mm 1,97" / 50 mm 2,76" / 70 mm
2nd: 1,18" / 30 mm - 0,98" / 25 mm
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 1,18" / 30 mm, Conning tower: 1,18" / 30 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 90.000 shp / 67.140 Kw = 35,51 kts
Range 9.000nm at 15,00 kts
Bunker at max displacement = 1.411 tons

Complement:
375 - 488

Cost:
£2,329 million / $9,317 million

Distribution of weights at normal displacement:
Armament: 131 tons, 1,9%
Armour: 938 tons, 13,7%
- Belts: 307 tons, 4,5%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 234 tons, 3,4%
- Armour Deck: 387 tons, 5,7%
- Conning Tower: 9 tons, 0,1%
Machinery: 2.351 tons, 34,4%
Hull, fittings & equipment: 2.186 tons, 31,9%
Fuel, ammunition & stores: 1.086 tons, 15,9%
Miscellaneous weights: 150 tons, 2,2%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3.556 lbs / 1.613 Kg = 34,5 x 5,9 " / 150 mm shells or 0,8 torpedoes
Stability (Unstable if below 1.00): 1,02
Metacentric height 1,9 ft / 0,6 m
Roll period: 15,5 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,66
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0,464
Length to Beam Ratio: 10,42 : 1
'Natural speed' for length: 26,18 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 30,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 31,50 ft / 9,60 m
- Forecastle (27%): 22,64 ft / 6,90 m
- Mid (50%): 22,64 ft / 6,90 m (14,76 ft / 4,50 m aft of break)
- Quarterdeck (15%): 14,76 ft / 4,50 m
- Stern: 14,76 ft / 4,50 m
- Average freeboard: 19,66 ft / 5,99 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 129,7%
- Above water (accommodation/working, high = better): 94,0%
Waterplane Area: 17.728 Square feet or 1.647 Square metres
Displacement factor (Displacement / loading): 100%
Structure weight / hull surface area: 68 lbs/sq ft or 334 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,69
- Longitudinal: 1,51
- Overall: 0,75
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

Pietermaritzburg II , laid down 1929, sunk 20-11-35 (gunfire)
Douala II , laid down 1929
Blantyre II , laid down 1930
Beira II , laid down 1930



Displacement:
7.731 t light; 8.108 t standard; 9.280 t normal; 10.217 t full load

Dimensions: Length overall / water x beam x draught
557,45 ft / 547,90 ft x 58,40 ft x 19,52 ft (normal load)
169,91 m / 167,00 m x 17,80 m x 5,95 m

Armament:
12 - 5,91" / 150 mm guns (4x3 guns), 110,23lbs / 50,00kg shells, 1929 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 4,13" / 105 mm guns (4x2 guns), 35,32lbs / 16,02kg shells, 1929 Model
Breech loading guns in deck mounts
on side, all amidships
12 - 1,57" / 40,0 mm guns (4x3 guns), 1,95lbs / 0,88kg shells, 1929 Model
Breech loading guns in deck mounts
on side, evenly spread
16 - 0,79" / 20,0 mm guns (4x4 guns), 0,24lbs / 0,11kg shells, 1929 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 1.633 lbs / 741 kg
Shells per gun, main battery: 200
12 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3,15" / 80 mm 375,39 ft / 114,42 m 10,83 ft / 3,30 m
Ends: Unarmoured
Main Belt covers 105% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3,35" / 85 mm 1,57" / 40 mm 3,15" / 80 mm
2nd: 0,98" / 25 mm 0,59" / 15 mm -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 1,77" / 45 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 82.000 shp / 61.172 Kw = 31,72 kts
Range 9.500nm at 15,00 kts
Bunker at max displacement = 2.109 tons

Complement:
472 - 614

Cost:
£3,142 million / $12,568 million

Distribution of weights at normal displacement:
Armament: 193 tons, 2,1%
Armour: 1.534 tons, 16,5%
- Belts: 532 tons, 5,7%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 290 tons, 3,1%
- Armour Deck: 712 tons, 7,7%
- Conning Tower: 0 tons, 0,0%
Machinery: 2.518 tons, 27,1%
Hull, fittings & equipment: 3.461 tons, 37,3%
Fuel, ammunition & stores: 1.549 tons, 16,7%
Miscellaneous weights: 25 tons, 0,3%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
9.708 lbs / 4.403 Kg = 94,3 x 5,9 " / 150 mm shells or 1,4 torpedoes
Stability (Unstable if below 1.00): 1,10
Metacentric height 2,7 ft / 0,8 m
Roll period: 15,0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,51
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,520
Length to Beam Ratio: 9,38 : 1
'Natural speed' for length: 23,41 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 20,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26,25 ft / 8,00 m
- Forecastle (25%): 22,97 ft / 7,00 m
- Mid (50%): 22,97 ft / 7,00 m (15,09 ft / 4,60 m aft of break)
- Quarterdeck (15%): 15,09 ft / 4,60 m
- Stern: 15,09 ft / 4,60 m
- Average freeboard: 19,36 ft / 5,90 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 105,4%
- Above water (accommodation/working, high = better): 119,5%
Waterplane Area: 21.714 Square feet or 2.017 Square metres
Displacement factor (Displacement / loading): 114%
Structure weight / hull surface area: 100 lbs/sq ft or 487 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,96
- Longitudinal: 1,42
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

Fenris, laid down 1930
Kweldulf, laid down 1930
Freki, laid down 1930, sunk 17-11-35 (scuttled)
Cerberus, laid down 1930
Garm, ex-Python, laid down 1931



Displacement:
2.618 t light; 2.764 t standard; 3.127 t normal; 3.418 t full load

Dimensions: Length overall / water x beam x draught
457,25 ft / 442,91 ft x 45,93 ft x 13,12 ft (normal load)
139,37 m / 135,00 m x 14,00 m x 4,00 m

Armament:
6 - 5,31" / 135 mm guns (3x2 guns), 75,07lbs / 34,05kg shells, 1930 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
4 - 3,46" / 88,0 mm guns (2x2 guns), 20,79lbs / 9,43kg shells, 1930 Model
Dual purpose guns in deck mounts
on side, all amidships
12 - 1,57" / 40,0 mm guns (4x3 guns), 1,95lbs / 0,89kg shells, 1930 Model
Dual purpose guns in deck mounts
on side ends, evenly spread
10 - 0,79" / 20,0 mm guns (3 mounts), 0,24lbs / 0,11kg shells, 1930 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 559 lbs / 254 kg
Shells per gun, main battery: 250
8 - 21,0" / 533 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,38" / 35 mm 0,79" / 20 mm 1,18" / 30 mm
2nd: 0,98" / 25 mm 0,59" / 15 mm -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 0,39" / 10 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 50.938 shp / 38.000 Kw = 34,46 kts
Range 6.000nm at 15,00 kts
Bunker at max displacement = 654 tons

Complement:
208 - 271

Cost:
£1,466 million / $5,864 million

Distribution of weights at normal displacement:
Armament: 70 tons, 2,2%
Armour: 159 tons, 5,1%
- Belts: 0 tons, 0,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 63 tons, 2,0%
- Armour Deck: 95 tons, 3,0%
- Conning Tower: 0 tons, 0,0%
Machinery: 1.430 tons, 45,7%
Hull, fittings & equipment: 929 tons, 29,7%
Fuel, ammunition & stores: 510 tons, 16,3%
Miscellaneous weights: 30 tons, 1,0%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1.037 lbs / 471 Kg = 13,8 x 5,3 " / 135 mm shells or 0,5 torpedoes
Stability (Unstable if below 1.00): 1,28
Metacentric height 2,4 ft / 0,7 m
Roll period: 12,4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,37
Seaboat quality (Average = 1.00): 1,01

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0,410
Length to Beam Ratio: 9,64 : 1
'Natural speed' for length: 24,38 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 69
Bow angle (Positive = bow angles forward): 25,00 degrees
Stern overhang: 1,64 ft / 0,50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 27,23 ft / 8,30 m
- Forecastle (20%): 20,01 ft / 6,10 m
- Mid (60%): 20,01 ft / 6,10 m (11,81 ft / 3,60 m aft of break)
- Quarterdeck (15%): 11,81 ft / 3,60 m
- Stern: 11,81 ft / 3,60 m
- Average freeboard: 17,31 ft / 5,28 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 167,1%
- Above water (accommodation/working, high = better): 147,3%
Waterplane Area: 13.077 Square feet or 1.215 Square metres
Displacement factor (Displacement / loading): 82%
Structure weight / hull surface area: 43 lbs/sq ft or 209 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,50
- Longitudinal: 1,21
- Overall: 0,54
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Ajax , laid down 1931
Achilles , laid down 1931



Displacement:
7.700 t light; 8.058 t standard; 9.202 t normal; 10.117 t full load

Dimensions: Length overall / water x beam x draught
557,45 ft / 547,90 ft x 58,40 ft x 19,36 ft (normal load)
169,91 m / 167,00 m x 17,80 m x 5,90 m

Armament:
9 - 5,91" / 150 mm guns (3x3 guns), 110,23lbs / 50,00kg shells, 1931 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
12 - 4,13" / 105 mm guns (6x2 guns), 35,32lbs / 16,02kg shells, 1931 Model
Breech loading guns in deck mounts
on side, all amidships
12 - 1,57" / 40,0 mm guns (4x3 guns), 1,95lbs / 0,88kg shells, 1931 Model
Breech loading guns in deck mounts
on side, evenly spread
20 - 0,79" / 20,0 mm guns (8 mounts), 0,24lbs / 0,11kg shells, 1931 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 1.444 lbs / 655 kg
Shells per gun, main battery: 200
12 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4,33" / 110 mm 361,42 ft / 110,16 m 10,33 ft / 3,15 m
Ends: Unarmoured
Main Belt covers 101% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4,13" / 105 mm 1,57" / 40 mm 3,15" / 80 mm
2nd: 0,98" / 25 mm 0,59" / 15 mm -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 1,97" / 50 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 80.429 shp / 60.000 Kw = 31,61 kts
Range 9.500nm at 15,00 kts
Bunker at max displacement = 2.059 tons

Complement:
469 - 610

Cost:
£3,277 million / $13,108 million

Distribution of weights at normal displacement:
Armament: 172 tons, 1,9%
Armour: 1.709 tons, 18,6%
- Belts: 676 tons, 7,3%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 242 tons, 2,6%
- Armour Deck: 791 tons, 8,6%
- Conning Tower: 0 tons, 0,0%
Machinery: 2.405 tons, 26,1%
Hull, fittings & equipment: 3.313 tons, 36,0%
Fuel, ammunition & stores: 1.502 tons, 16,3%
Miscellaneous weights: 100 tons, 1,1%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
10.437 lbs / 4.734 Kg = 101,3 x 5,9 " / 150 mm shells or 1,4 torpedoes
Stability (Unstable if below 1.00): 1,13
Metacentric height 2,8 ft / 0,9 m
Roll period: 14,6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,39
Seaboat quality (Average = 1.00): 1,02

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,520
Length to Beam Ratio: 9,38 : 1
'Natural speed' for length: 23,41 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 69
Bow angle (Positive = bow angles forward): 20,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26,25 ft / 8,00 m
- Forecastle (25%): 22,97 ft / 7,00 m
- Mid (46%): 22,97 ft / 7,00 m (15,09 ft / 4,60 m aft of break)
- Quarterdeck (15%): 15,09 ft / 4,60 m
- Stern: 15,09 ft / 4,60 m
- Average freeboard: 19,04 ft / 5,80 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 101,5%
- Above water (accommodation/working, high = better): 116,8%
Waterplane Area: 21.714 Square feet or 2.017 Square metres
Displacement factor (Displacement / loading): 115%
Structure weight / hull surface area: 96 lbs/sq ft or 469 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,96
- Longitudinal: 1,38
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

Fasold , laid down 1931
Freischütz , laid down 1932



Displacement:
3.848 t light; 4.040 t standard; 4.415 t normal; 4.714 t full load

Dimensions: Length overall / water x beam x draught
456,79 ft / 442,91 ft x 44,29 ft x 16,24 ft (normal load)
139,23 m / 135,00 m x 13,50 m x 4,95 m

Armament:
6 - 5,91" / 150 mm guns (3x2 guns), 102,98lbs / 46,71kg shells, 1931 Model
Breech loading guns in deck mounts with hoists
on centreline ends, majority forward
4 - 3,46" / 88,0 mm guns (2x2 guns), 20,79lbs / 9,43kg shells, 1931 Model
Breech loading guns in deck mounts
on side, all amidships
6 - 1,57" / 40,0 mm guns (3x2 guns), 1,95lbs / 0,88kg shells, 1931 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
8 - 0,79" / 20,0 mm guns (4x2 guns), 0,24lbs / 0,11kg shells, 1931 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 715 lbs / 324 kg
Shells per gun, main battery: 250
12 - 21,0" / 533 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,57" / 40 mm 0,98" / 25 mm 1,18" / 30 mm
2nd: 0,98" / 25 mm 0,59" / 15 mm -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 0,59" / 15 mm, Conning tower: 1,18" / 30 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 56.301 shp / 42.000 Kw = 33,10 kts
Range 5.000nm at 15,00 kts
Bunker at max displacement = 674 tons

Complement:
270 - 352

Cost:
£1,944 million / $7,775 million

Distribution of weights at normal displacement:
Armament: 89 tons, 2,0%
Armour: 192 tons, 4,3%
- Belts: 0 tons, 0,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 38 tons, 0,9%
- Armour Deck: 146 tons, 3,3%
- Conning Tower: 7 tons, 0,2%
Machinery: 1.684 tons, 38,1%
Hull, fittings & equipment: 1.853 tons, 42,0%
Fuel, ammunition & stores: 567 tons, 12,8%
Miscellaneous weights: 30 tons, 0,7%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2.894 lbs / 1.313 Kg = 28,1 x 5,9 " / 150 mm shells or 0,7 torpedoes
Stability (Unstable if below 1.00): 1,10
Metacentric height 1,8 ft / 0,5 m
Roll period: 14,0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,52
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0,485
Length to Beam Ratio: 10,00 : 1
'Natural speed' for length: 24,06 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 25,00 degrees
Stern overhang: 1,64 ft / 0,50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26,25 ft / 8,00 m
- Forecastle (20%): 21,33 ft / 6,50 m
- Mid (50%): 21,33 ft / 6,50 m (13,45 ft / 4,10 m aft of break)
- Quarterdeck (15%): 13,45 ft / 4,10 m
- Stern: 13,45 ft / 4,10 m
- Average freeboard: 17,78 ft / 5,42 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 140,8%
- Above water (accommodation/working, high = better): 93,6%
Waterplane Area: 13.405 Square feet or 1.245 Square metres
Displacement factor (Displacement / loading): 103%
Structure weight / hull surface area: 77 lbs/sq ft or 375 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,91
- Longitudinal: 2,41
- Overall: 1,00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform

Antenor , laid down 1933
Paladin , cancelled 1933




Thanks to alt_naval for the pic!

Displacement:
5.788 t light; 6.042 t standard (6.000 t officially); 6.839 t normal; 7.477 t full load

Dimensions: Length overall / water x beam x draught
549,81 ft / 538,71 ft x 56,43 ft x 16,40 ft (normal load)
167,58 m / 164,20 m x 17,20 m x 5,00 m

Armament:
9 - 5,91" / 150 mm guns (3x3 guns), 102,98lbs / 46,71kg shells, 1933 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
4 - 4,13" / 105 mm guns in single mounts, 35,32lbs / 16,02kg shells, 1933 Model
Breech loading guns in deck mounts
on side, all amidships, all raised mounts - superfiring
18 - 1,57" / 40,0 mm guns (5 mounts), 1,95lbs / 0,88kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 10 raised guns
20 - 0,79" / 20,0 mm guns (7 mounts), 0,24lbs / 0,11kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 9 raised mounts
Weight of broadside 1.108 lbs / 503 kg
Shells per gun, main battery: 180
4 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1,97" / 50 mm 374,02 ft / 114,00 m 8,53 ft / 2,60 m
Ends: Unarmoured
Main Belt covers 107% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3,15" / 80 mm 1,57" / 40 mm 3,15" / 80 mm
2nd: 0,98" / 25 mm 0,59" / 15 mm -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 1,18" / 30 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 64.343 shp / 48.000 Kw = 31,42 kts
Range 8.000nm at 15,00 kts
Bunker at max displacement = 1.435 tons

Complement:
375 - 488

Cost:
£2,748 million / $10,994 million

Distribution of weights at normal displacement:
Armament: 139 tons, 2,0%
Armour: 898 tons, 13,1%
- Belts: 259 tons, 3,8%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 204 tons, 3,0%
- Armour Deck: 435 tons, 6,4%
- Conning Tower: 0 tons, 0,0%
Machinery: 1.875 tons, 27,4%
Hull, fittings & equipment: 2.807 tons, 41,0%
Fuel, ammunition & stores: 1.051 tons, 15,4%
Miscellaneous weights: 70 tons, 1,0%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7.575 lbs / 3.436 Kg = 73,6 x 5,9 " / 150 mm shells or 1,3 torpedoes
Stability (Unstable if below 1.00): 1,14
Metacentric height 2,7 ft / 0,8 m
Roll period: 14,4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,35
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,480
Length to Beam Ratio: 9,55 : 1
'Natural speed' for length: 23,21 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 25,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23,79 ft / 7,25 m
- Forecastle (20%): 21,16 ft / 6,45 m
- Mid (45%): 21,16 ft / 6,45 m (13,29 ft / 4,05 m aft of break)
- Quarterdeck (15%): 13,29 ft / 4,05 m
- Stern: 13,29 ft / 4,05 m
- Average freeboard: 17,04 ft / 5,19 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 106,3%
- Above water (accommodation/working, high = better): 149,9%
Waterplane Area: 19.894 Square feet or 1.848 Square metres
Displacement factor (Displacement / loading): 117%
Structure weight / hull surface area: 93 lbs/sq ft or 452 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,97
- Longitudinal: 1,20
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Diana , laid down 1934
Uller , laid down 1935



Displacement:
2.866 t light; 2.999 t standard (3.000t officially); 3.433 t normal; 3.779 t full load

Dimensions: Length overall / water x beam x draught
458,76 ft / 442,91 ft x 45,93 ft x 14,76 ft (normal load)
139,83 m / 135,00 m x 14,00 m x 4,50 m

Armament:
10 - 4,53" / 115 mm guns (5x2 guns), 46,40lbs / 21,05kg shells, 1934 Model
Dual purpose guns in turrets (on barbettes)
on centreline ends, majority forward, 3 raised mounts - superfiring
16 - 1,57" / 40,0 mm guns (4x4 guns), 1,95lbs / 0,88kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side ends, evenly spread, 2 raised mounts - superfiring
18 - 0,79" / 20,0 mm guns (6 mounts), 0,24lbs / 0,11kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised guns
Weight of broadside 500 lbs / 227 kg
Shells per gun, main battery: 220
4 - 21,0" / 533 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,57" / 40 mm 0,79" / 20 mm 1,57" / 40 mm
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 0,79" / 20 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 57.000 shp / 42.522 Kw = 34,99 kts
Range 7.080nm at 15,00 kts
Bunker at max displacement = 781 tons

Complement:
223 - 291

Cost:
£1,818 million / $7,270 million

Distribution of weights at normal displacement:
Armament: 62 tons, 1,8%
Armour: 282 tons, 8,2%
- Belts: 0 tons, 0,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 93 tons, 2,7%
- Armour Deck: 189 tons, 5,5%
- Conning Tower: 0 tons, 0,0%
Machinery: 1.553 tons, 45,2%
Hull, fittings & equipment: 949 tons, 27,6%
Fuel, ammunition & stores: 566 tons, 16,5%
Miscellaneous weights: 20 tons, 0,6%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1.080 lbs / 490 Kg = 23,3 x 4,5 " / 115 mm shells or 0,5 torpedoes
Stability (Unstable if below 1.00): 1,19
Metacentric height 2,1 ft / 0,7 m
Roll period: 13,2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,40
Seaboat quality (Average = 1.00): 0,95

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0,400
Length to Beam Ratio: 9,64 : 1
'Natural speed' for length: 24,42 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 73
Bow angle (Positive = bow angles forward): 30,00 degrees
Stern overhang: 1,64 ft / 0,50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24,61 ft / 7,50 m
- Forecastle (20%): 16,57 ft / 5,05 m
- Mid (50%): 16,57 ft / 5,05 m
- Quarterdeck (15%): 16,57 ft / 5,05 m
- Stern: 16,57 ft / 5,05 m
- Average freeboard: 17,21 ft / 5,25 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 161,5%
- Above water (accommodation/working, high = better): 159,0%
Waterplane Area: 12.996 Square feet or 1.207 Square metres
Displacement factor (Displacement / loading): 84%
Structure weight / hull surface area: 43 lbs/sq ft or 210 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,50
- Longitudinal: 1,17
- Overall: 0,54
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

Dione , laid down 1934
Daphne , laid down 1934



Displacement:
5.015 t light; 5.208 t standard (5.200t officially); 5.906 t normal; 6.464 t full load

Dimensions: Length overall / water x beam x draught
490,59 ft / 475,72 ft x 47,57 ft x 19,03 ft (normal load)
149,53 m / 145,00 m x 14,50 m x 5,80 m

Armament:
8 - 5,31" / 135 mm guns (4x2 guns), 83,78lbs / 38,00kg shells, 1934 Model
Dual purpose guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
16 - 1,57" / 40,0 mm guns (8x2 guns), 1,95lbs / 0,88kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
20 - 0,79" / 20,0 mm guns (5 mounts), 0,24lbs / 0,11kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 18 raised guns
Weight of broadside 706 lbs / 320 kg
Shells per gun, main battery: 185

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3,15" / 80 mm 332,02 ft / 101,20 m 9,84 ft / 3,00 m
Ends: Unarmoured
Main Belt covers 107% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,77" / 45 mm 0,98" / 25 mm 2,17" / 55 mm
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 1,38" / 35 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 60.000 shp / 44.760 Kw = 32,42 kts
Range 8.200nm at 15,00 kts
Bunker at max displacement = 1.256 tons

Complement:
336 - 437

Cost:
£2,376 million / $9,505 million

Distribution of weights at normal displacement:
Armament: 80 tons, 1,3%
Armour: 937 tons, 15,9%
- Belts: 423 tons, 7,2%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 122 tons, 2,1%
- Armour Deck: 392 tons, 6,6%
- Conning Tower: 0 tons, 0,0%
Machinery: 1.726 tons, 29,2%
Hull, fittings & equipment: 2.197 tons, 37,2%
Fuel, ammunition & stores: 891 tons, 15,1%
Miscellaneous weights: 75 tons, 1,3%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
5.883 lbs / 2.669 Kg = 78,4 x 5,3 " / 135 mm shells or 1,1 torpedoes
Stability (Unstable if below 1.00): 1,04
Metacentric height 1,8 ft / 0,5 m
Roll period: 15,0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,49
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has rise forward of midbreak, low quarterdeck
and transom stern
Block coefficient: 0,480
Length to Beam Ratio: 10,00 : 1
'Natural speed' for length: 24,95 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 25,00 degrees
Stern overhang: 2,62 ft / 0,80 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26,25 ft / 8,00 m
- Forecastle (20%): 21,72 ft / 6,62 m
- Mid (45%): 21,72 ft / 6,62 m (13,85 ft / 4,22 m aft of break)
- Quarterdeck (15%): 13,85 ft / 4,22 m (13,94 ft / 4,25 m before break)
- Stern: 13,85 ft / 4,22 m
- Average freeboard: 17,77 ft / 5,42 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 107,3%
- Above water (accommodation/working, high = better): 147,5%
Waterplane Area: 15.394 Square feet or 1.430 Square metres
Displacement factor (Displacement / loading): 116%
Structure weight / hull surface area: 81 lbs/sq ft or 396 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,92
- Longitudinal: 1,94
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Danae , laid down 1936
Dido , laid down 1937



Displacement:
7.814 t light; 8.179 t standard; 9.097 t normal; 9.831 t full load

Dimensions: Length overall / water x beam x draught
564,31 ft / 551,18 ft x 56,43 ft x 19,69 ft (normal load)
172,00 m / 168,00 m x 17,20 m x 6,00 m

Armament:
12 - 5,31" / 135 mm guns (6x2 guns), 75,07lbs / 34,05kg shells, 1936 Model
Dual purpose guns in turrets (on barbettes)
on centreline ends, evenly spread, 4 raised mounts - superfiring
12 - 4,13" / 105 mm guns (6x2 guns), 35,32lbs / 16,02kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, all amidships, 2 raised mounts - superfiring
16 - 1,57" / 40,0 mm guns (6 mounts), 1,95lbs / 0,88kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
24 - 0,79" / 20,0 mm guns (4x6 guns), 0,24lbs / 0,11kg shells, 1936 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
12 - 0,79" / 20,0 mm guns (6x2 guns), 0,24lbs / 0,11kg shells, 1936 Model
Machine guns in deck mounts
on side, evenly spread, 4 raised mounts
Weight of broadside 1.365 lbs / 619 kg
Shells per gun, main battery: 220

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3,15" / 80 mm 393,70 ft / 120,00 m 11,48 ft / 3,50 m
Ends: Unarmoured
Main Belt covers 110% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,77" / 45 mm 1,38" / 35 mm 2,36" / 60 mm
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -
5th: 0,39" / 10 mm - -

- Armour deck: 1,57" / 40 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 93.834 shp / 70.000 Kw = 34,21 kts
Range 8.400nm at 15,00 kts
Bunker at max displacement = 1.652 tons

Complement:
465 - 605

Cost:
£4,141 million / $16,564 million

Distribution of weights at normal displacement:
Armament: 171 tons, 1,9%
Armour: 1.452 tons, 16,0%
- Belts: 586 tons, 6,4%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 227 tons, 2,5%
- Armour Deck: 640 tons, 7,0%
- Conning Tower: 0 tons, 0,0%
Machinery: 2.633 tons, 28,9%
Hull, fittings & equipment: 3.528 tons, 38,8%
Fuel, ammunition & stores: 1.283 tons, 14,1%
Miscellaneous weights: 30 tons, 0,3%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
9.308 lbs / 4.222 Kg = 124,0 x 5,3 " / 135 mm shells or 1,3 torpedoes
Stability (Unstable if below 1.00): 1,06
Metacentric height 2,4 ft / 0,7 m
Roll period: 15,4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,56
Seaboat quality (Average = 1.00): 1,01

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0,520
Length to Beam Ratio: 9,77 : 1
'Natural speed' for length: 26,78 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 69
Bow angle (Positive = bow angles forward): 20,00 degrees
Stern overhang: 2,62 ft / 0,80 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28,87 ft / 8,80 m
- Forecastle (25%): 23,95 ft / 7,30 m
- Mid (59%): 23,95 ft / 7,30 m (15,75 ft / 4,80 m aft of break)
- Quarterdeck (15%): 15,75 ft / 4,80 m
- Stern: 15,75 ft / 4,80 m
- Average freeboard: 21,08 ft / 6,43 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 109,8%
- Above water (accommodation/working, high = better): 183,5%
Waterplane Area: 21.960 Square feet or 2.040 Square metres
Displacement factor (Displacement / loading): 112%
Structure weight / hull surface area: 96 lbs/sq ft or 467 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,93
- Longitudinal: 1,82
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Lightning , laid down 1936

Displacement:
3.914 t light; 4.041 t standard; 4.609 t normal; 5.064 t full load

Dimensions: Length overall / water x beam x draught
456,03 ft / 442,91 ft x 49,21 ft x 15,42 ft (normal load)
139,00 m / 135,00 m x 15,00 m x 4,70 m

Armament:
6 - 4,53" / 115 mm guns (3x2 guns), 46,40lbs / 21,05kg shells, 1936 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority forward, 2 raised mounts - superfiring
8 - 1,57" / 40,0 mm guns (4x2 guns), 1,95lbs / 0,88kg shells, 1936 Model
Breech loading guns in deck mounts
on side, evenly spread, all raised mounts
8 - 0,79" / 20,0 mm guns (4x2 guns), 0,24lbs / 0,11kg shells, 1936 Model
Breech loading guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 296 lbs / 134 kg
Shells per gun, main battery: 200

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,38" / 35 mm 0,98" / 25 mm 1,18" / 30 mm
2nd: 0,59" / 15 mm - -
3rd: 0,39" / 10 mm - -

- Armour deck: 0,39" / 10 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 56.301 shp / 42.000 Kw = 32,86 kts
Range 4.000nm at 20,00 kts
Bunker at max displacement = 1.024 tons

Complement:
279 - 363

Cost:
£2,052 million / $8,209 million

Distribution of weights at normal displacement:
Armament: 37 tons, 0,8%
Armour: 133 tons, 2,9%
- Belts: 0 tons, 0,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 25 tons, 0,5%
- Armour Deck: 108 tons, 2,3%
- Conning Tower: 0 tons, 0,0%
Machinery: 1.580 tons, 34,3%
Hull, fittings & equipment: 1.865 tons, 40,4%
Fuel, ammunition & stores: 695 tons, 15,1%
Miscellaneous weights: 300 tons, 6,5%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4.057 lbs / 1.840 Kg = 87,4 x 4,5 " / 115 mm shells or 0,8 torpedoes
Stability (Unstable if below 1.00): 1,08
Metacentric height 2,0 ft / 0,6 m
Roll period: 14,6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,21
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0,480
Length to Beam Ratio: 9,00 : 1
'Natural speed' for length: 24,28 kts
Power going to wave formation at top speed: 65 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 25,00 degrees
Stern overhang: 1,64 ft / 0,50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24,61 ft / 7,50 m
- Forecastle (30%): 18,70 ft / 5,70 m
- Mid (50%): 17,72 ft / 5,40 m
- Quarterdeck (15%): 17,72 ft / 5,40 m
- Stern: 17,72 ft / 5,40 m
- Average freeboard: 18,82 ft / 5,74 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 124,7%
- Above water (accommodation/working, high = better): 181,1%
Waterplane Area: 14.827 Square feet or 1.377 Square metres
Displacement factor (Displacement / loading): 119%
Structure weight / hull surface area: 75 lbs/sq ft or 364 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,91
- Longitudinal: 2,30
- Overall: 1,00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Hedgehog , laid down 1937

Displacement:
5.070 t light; 5.260 t standard; 6.162 t normal; 6.884 t full load

Dimensions: Length overall / water x beam x draught
489,60 ft / 475,72 ft x 53,15 ft x 16,40 ft (normal load)
149,23 m / 145,00 m x 16,20 m x 5,00 m

Armament:
8 - 4,53" / 115 mm guns (4x2 guns), 46,40lbs / 21,05kg shells, 1937 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 1,57" / 40,0 mm guns (2x4 guns), 1,95lbs / 0,88kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
8 - 0,79" / 20,0 mm guns (4x2 guns), 0,24lbs / 0,11kg shells, 1937 Model
Machine guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 389 lbs / 176 kg
Shells per gun, main battery: 300

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1,97" / 50 mm 269,03 ft / 82,00 m 13,12 ft / 4,00 m
Ends: Unarmoured
Main Belt covers 87% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,38" / 35 mm 0,98" / 25 mm 1,57" / 40 mm
2nd: 0,59" / 15 mm - -
3rd: 0,39" / 10 mm - -

- Armour deck: 1,18" / 30 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 42.000 shp / 31.332 Kw = 29,25 kts
Range 5.400nm at 20,00 kts
Bunker at max displacement = 1.624 tons

Complement:
347 - 452

Cost:
£2,080 million / $8,318 million

Distribution of weights at normal displacement:
Armament: 49 tons, 0,8%
Armour: 720 tons, 11,7%
- Belts: 300 tons, 4,9%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 30 tons, 0,5%
- Armour Deck: 390 tons, 6,3%
- Conning Tower: 0 tons, 0,0%
Machinery: 1.164 tons, 18,9%
Hull, fittings & equipment: 2.137 tons, 34,7%
Fuel, ammunition & stores: 1.092 tons, 17,7%
Miscellaneous weights: 1.000 tons, 16,2%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
9.559 lbs / 4.336 Kg = 206,0 x 4,5 " / 115 mm shells or 1,6 torpedoes
Stability (Unstable if below 1.00): 1,16
Metacentric height 2,6 ft / 0,8 m
Roll period: 13,9 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0,16
Seaboat quality (Average = 1.00): 1,03

Hull form characteristics:
Hull has low quarterdeck
and transom stern
Block coefficient: 0,520
Length to Beam Ratio: 8,95 : 1
'Natural speed' for length: 25,05 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 20,00 degrees
Stern overhang: 4,92 ft / 1,50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24,61 ft / 7,50 m
- Forecastle (20%): 18,37 ft / 5,60 m
- Mid (50%): 17,72 ft / 5,40 m
- Quarterdeck (20%): 9,84 ft / 3,00 m (17,72 ft / 5,40 m before break)
- Stern: 9,84 ft / 3,00 m
- Average freeboard: 16,87 ft / 5,14 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 86,2%
- Above water (accommodation/working, high = better): 175,2%
Waterplane Area: 17.852 Square feet or 1.658 Square metres
Displacement factor (Displacement / loading): 139%
Structure weight / hull surface area: 79 lbs/sq ft or 388 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,97
- Longitudinal: 1,40
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent

Nampula II , laid down 1937
Oudtshoorn II , laid down 1938

Displacement:
7.904 t light; 8.241 t standard; 9.115 t normal; 9.814 t full load

Dimensions: Length overall / water x beam x draught
587,92 ft / 574,15 ft x 58,40 ft x 19,03 ft (normal load)
179,20 m / 175,00 m x 17,80 m x 5,80 m

Armament:
9 - 5,91" / 150 mm guns (3x3 guns), 110,23lbs / 50,00kg shells, 1937 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
8 - 4,13" / 105 mm guns (4x2 guns), 35,32lbs / 16,02kg shells, 1937 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships, all raised mounts - superfiring
12 - 1,57" / 40,0 mm guns (3x4 guns), 1,95lbs / 0,88kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
12 - 0,79" / 20,0 mm guns (6x2 guns), 0,24lbs / 0,11kg shells, 1937 Model
Machine guns in deck mounts
on side, evenly spread, 2 raised mounts
Weight of broadside 1.301 lbs / 590 kg
Shells per gun, main battery: 200
8 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1,97" / 50 mm 426,51 ft / 130,00 m 10,50 ft / 3,20 m
Ends: Unarmoured
Main Belt covers 114% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3,15" / 80 mm 1,97" / 50 mm 3,15" / 80 mm
2nd: 1,38" / 35 mm 0,98" / 25 mm 1,18" / 30 mm
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 1,38" / 35 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 100.000 shp / 74.600 Kw = 34,98 kts
Range 8.000nm at 15,00 kts
Bunker at max displacement = 1.573 tons

Complement:
466 - 606

Cost:
£4,333 million / $17,333 million

Distribution of weights at normal displacement:
Armament: 154 tons, 1,7%
Armour: 1.177 tons, 12,9%
- Belts: 360 tons, 3,9%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 224 tons, 2,5%
- Armour Deck: 592 tons, 6,5%
- Conning Tower: 0 tons, 0,0%
Machinery: 2.772 tons, 30,4%
Hull, fittings & equipment: 3.752 tons, 41,2%
Fuel, ammunition & stores: 1.210 tons, 13,3%
Miscellaneous weights: 50 tons, 0,5%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
8.598 lbs / 3.900 Kg = 83,5 x 5,9 " / 150 mm shells or 1,2 torpedoes
Stability (Unstable if below 1.00): 1,09
Metacentric height 2,6 ft / 0,8 m
Roll period: 15,1 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,42
Seaboat quality (Average = 1.00): 1,06

Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0,500
Length to Beam Ratio: 9,83 : 1
'Natural speed' for length: 27,38 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 66
Bow angle (Positive = bow angles forward): 25,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 29,53 ft / 9,00 m
- Forecastle (40%): 25,92 ft / 7,90 m (18,04 ft / 5,50 m aft of break)
- Mid (50%): 18,04 ft / 5,50 m
- Quarterdeck (15%): 18,04 ft / 5,50 m
- Stern: 18,04 ft / 5,50 m
- Average freeboard: 21,77 ft / 6,64 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 113,1%
- Above water (accommodation/working, high = better): 143,2%
Waterplane Area: 23.232 Square feet or 2.158 Square metres
Displacement factor (Displacement / loading): 114%
Structure weight / hull surface area: 97 lbs/sq ft or 474 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,94
- Longitudinal: 1,79
- Overall: 1,00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform