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HoOmAn

Keeper of the Sacred Block Coefficient

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1

Monday, October 4th 2004, 5:41pm

Cruiser, Category A

Argentina , laid down 1908, refitted 1918, refitted 1928, scrapped 1938



Displacement:
9.712 t light; 10.252 t standard; 11.900 t normal; 13.170 t full load
Loading submergence 563 tons/feet

Dimensions:
442,91 ft x 68,90 ft x 26,25 ft (normal load)
135,00 m x 21,00 m x 8,00 m

Armament:
8 - 8,27" / 210 mm guns (2 x 2; 4 x 1 turrets)
10 - 5,91" / 150 mm guns
10 - 3,46" / 88 mm QF guns
6 - 3,46" / 88 mm guns
Weight of broadside 3.623 lbs / 1.643 kg
4 - 21,0" / 533 mm submerged torpedo tubes

Hull Armour:
Belt 5,91" / 150 mm,
(Belts cover 103% of normal area)
Upper belt 3,35" / 85 mm, end belts 2,36" / 60 mm
Armour deck 1,57" / 40 mm
(Allocation: Over engines and magazines - 45 mm; ends - 30 mm)
Conning tower 7,87" / 200 mm

Battery Armour:
Main turrets 8,27" / 210 mm
(Allocation: Front - 210 mm; sides - 150 mm; back - 100 mm; roof - 100 mm)
2nd gun casemats 5,91" / 150 mm
QF gun casemats 0,98" / 40 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 4 shafts, 26.812 ihp / 20.002 Kw = 22,38 kts
(Trials with 12% overload for 22.400 shaft kw = 23,025 kts)
Range 8.000nm at 12,00 kts

Complement:
569 - 740

Cost:
£1,062 million / $4,246 million

Distribution of weights at normal displacement:
Armament: 453 tons, 3,8%
Armour: 3.044 tons, 25,6%
Belts: 1.235 tons, 10,4%, Armament: 1.147 tons, 9,6%, Armour Deck: 574 tons, 4,8%
Conning Tower: 88 tons, 0,7%, Torpedo bulkhead: 0 tons, 0,0%
Machinery: 2.437 tons, 20,5%
Hull, fittings & equipment: 3.727 tons, 31,3%
Fuel, ammunition & stores: 2.188 tons, 18,4%
Miscellaneous weights: 50 tons, 0,4%

Metacentric height 3,2

Remarks:
Hull space for machinery, storage & compartmentation is adequate
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: 1,05
Shellfire needed to sink: 10.332 lbs / 4.686 Kg = 36,6 x 8,3 " / 210 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1,5
(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: 0,56
Relative quality as seaboat: 1,22

Hull form characteristics:
Block coefficient: 0,520
Sharpness coefficient: 0,39
Hull speed coefficient 'M': 5,93
'Natural speed' for length: 21,05 kts
Power going to wave formation at top speed: 52 %
Trim: 58
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 102,2%
Relative accommodation and working space: 108,1%
(Average = 100%)
Displacement factor: 103%
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0,93
(Structure weight / hull surface area: 120 lbs / square foot or 584 Kg / square metre)
Relative longitudinal hull strength: 1,88
(for 16,40 ft / 5,00 m average freeboard, freeboard adjustment 0,73 ft)
Relative composite hull strength: 1,00

After modernization:



Displacement:
9.705 t light; 10.251 t standard; 11.900 t normal; 13.219 t full load

Dimensions: Length overall / water x beam x draught
442,91 ft / 442,91 ft x 68,90 ft x 26,25 ft (normal load)
135,00 m / 135,00 m x 21,00 m x 8,00 m

Armament:
8 - 8,27" / 210 mm guns (6 mounts), 297,62lbs / 135,00kg shells, 1908 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
10 - 5,91" / 150 mm guns in single mounts, 101,41lbs / 46,00kg shells, 1908 Model
Breech loading guns in casemate mounts
on side, all amidships
8 - 4,13" / 105 mm guns (4x2 guns), 35,32lbs / 16,02kg shells, 1924 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
8 - 1,57" / 40,0 mm guns (4x2 guns), 1,95lbs / 0,88kg shells, 1924 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
16 - 0,79" / 20,0 mm guns (6 mounts), 0,24lbs / 0,11kg shells, 1924 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 3.697 lbs / 1.677 kg
Shells per gun, main battery: 140

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5,91" / 150 mm 295,28 ft / 90,00 m 10,50 ft / 3,20 m
Ends: 2,36" / 60 mm 147,64 ft / 45,00 m 7,22 ft / 2,20 m
Upper: 3,35" / 85 mm 295,28 ft / 90,00 m 7,87 ft / 2,40 m
Main Belt covers 103% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 8,27" / 210 mm 5,91" / 150 mm 5,91" / 150 mm
2nd: 5,91" / 150 mm 3,94" / 100 mm -
3rd: 0,98" / 25 mm 0,39" / 10 mm -
4th: 0,59" / 15 mm - -
5th: 0,39" / 10 mm - -

- Armour deck: 1,57" / 40 mm, Conning tower: 7,87" / 200 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 4 shafts, 26.809 ihp / 20.000 Kw = 22,38 kts
Range 8.300nm at 12,00 kts
Bunker at max displacement = 2.968 tons (100% coal)

Complement:
569 - 740

Cost:
£1,058 million / $4,232 million

Distribution of weights at normal displacement:
Armament: 449 tons, 3,8%
Armour: 2.876 tons, 24,2%
- Belts: 1.221 tons, 10,3%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 963 tons, 8,1%
- Armour Deck: 603 tons, 5,1%
- Conning Tower: 88 tons, 0,7%
Machinery: 2.437 tons, 20,5%
Hull, fittings & equipment: 3.893 tons, 32,7%
Fuel, ammunition & stores: 2.194 tons, 18,4%
Miscellaneous weights: 50 tons, 0,4%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
12.310 lbs / 5.584 Kg = 43,6 x 8,3 " / 210 mm shells or 1,7 torpedoes
Stability (Unstable if below 1.00): 1,21
Metacentric height 4,0 ft / 1,2 m
Roll period: 14,4 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,42
Seaboat quality (Average = 1.00): 1,43

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0,520
Length to Beam Ratio: 6,43 : 1
'Natural speed' for length: 21,05 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 49
Bow angle (Positive = bow angles forward): 0,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24,93 ft / 7,60 m
- Forecastle (20%): 24,28 ft / 7,40 m (16,40 ft / 5,00 m aft of break)
- Mid (50%): 16,40 ft / 5,00 m
- Quarterdeck (15%): 16,40 ft / 5,00 m
- Stern: 16,40 ft / 5,00 m
- Average freeboard: 18,03 ft / 5,50 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 96,4%
- Above water (accommodation/working, high = better): 113,7%
Waterplane Area: 20.709 Square feet or 1.924 Square metres
Displacement factor (Displacement / loading): 104%
Structure weight / hull surface area: 121 lbs/sq ft or 589 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,98
- Longitudinal: 2,34
- Overall: 1,07
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
Good seaboat, rides out heavy weather easily

HoOmAn

Keeper of the Sacred Block Coefficient

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2

Monday, October 4th 2004, 5:43pm

General Hegendorff , laid down 1910, refitted 1917, scrapped 1929
General van de Loo , laid down 1910, refitted 1918, scrapped 1929

Displacement:
10.820 t light; 11.407 t standard (11.400 t officially); 14.057 t normal; 16.122 t full load
Loading submergence 638 tons/feet

Dimensions:
475,72 ft x 70,54 ft x 26,90 ft (normal load)
145,00 m x 21,50 m x 8,20 m

Armament:
8 - 8,27" / 210 mm guns (4 Main turrets x 2 guns)
10 - 5,91" / 150 mm guns
10 - 3,46" / 88 mm QF guns
8 - 3,46" / 88 mm guns
Weight of broadside 3.665 lbs / 1.662 kg
4 - 21,0" / 533 mm submerged torpedo tubes

Armour:
Belt 7,87" / 200 mm, upper belt 5,91" / 150 mm, end belts 3,15" / 80 mm
Belts cover 84% of normal area
Main turrets 210,00" / 5.334 mm, 2nd gun shields 5,91" / 150 mm
QF gun shields 1,97" / 50 mm, Light gun shields 0,98" / 25 mm
Armour deck 1,97" / 50 mm, Conning tower 7,87" / 200 mm

Machinery:
Coal fired boilers, steam turbines,
Direct drive, 4 shafts, 50.939 shp / 38.000 Kw = 25,74 kts
Range 12.000nm at 12,00 kts

Complement:
645 - 839

Cost:
£1,088 million / $4,351 million

Distribution of weights at normal displacement:
Armament: 458 tons, 3,3%
Armour: 3.595 tons, 25,6%
Belts: 1.575 tons, 11,2%, Armament: 1.107 tons, 7,9%, Armour Deck: 814 tons, 5,8%
Conning Tower: 99 tons, 0,7%, Torpedo bulkhead: 0 tons, 0,0%
Machinery: 2.315 tons, 16,5%
Hull, fittings & equipment: 4.402 tons, 31,3%
Fuel, ammunition & stores: 3.237 tons, 23,0%
Miscellaneous weights: 50 tons, 0,4%

Metacentric height 3,8

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is excellent

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1,14
Shellfire needed to sink: 16.598 lbs / 7.529 Kg = 58,7 x 8,3 " / 210 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 2,0
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 52 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0,46
Relative quality as seaboat: 1,06

Hull form characteristics:
Block coefficient: 0,545
Sharpness coefficient: 0,39
Hull speed coefficient 'M': 6,03
'Natural speed' for length: 21,81 kts
Power going to wave formation at top speed: 58 %
Trim: 49
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 83,8%
Relative accommodation and working space: 124,5%
(Average = 100%)
Displacement factor: 118%
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0,92
(Structure weight / hull surface area: 123 lbs / square foot or 599 Kg / square metre)
Relative longitudinal hull strength: 2,02
(for 18,86 ft / 5,75 m average freeboard, freeboard adjustment 2,65 ft)
Relative composite hull strength: 1,00

HoOmAn

Keeper of the Sacred Block Coefficient

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3

Monday, October 4th 2004, 5:48pm

Cape Good Hope , laid down 1923, refit 1939
Cape Lopez , laid down 1923, refit 1940
Cape Corrientes , laid down 1923, refit 1940
Cape Delgado , laid down 1923, refit 1941



Displacement:
12.608 t light; 13.183 t standard (13.000 t offficially); 14.422 t normal; 15.355 t full load
Loading submergence 839 tons/feet

Dimensions:
652,89 ft x 69,72 ft x 21,33 ft (normal load)
199,00 m x 21,25 m x 6,50 m

Armament:
8 - 8,27" / 210 mm guns (4 Main turrets x 2 guns, 2 superfiring turrets)
8 - 5,91" / 150 mm guns
16 - 3,46" / 88 mm AA guns
10 - 1,57" / 40 mm guns
Weight of broadside 3.437 lbs / 1.559 kg
8 - 21,0" / 533 mm above water torpedoes

Armour:
Belt 5,91" / 150 mm, ends unarmoured
Belts cover 94% of normal area
Main turrets 5,91" / 150 mm, 2nd gun shields 1,57" / 40 mm
AA gun shields 0,98" / 25 mm, Light gun shields 0,59" / 15 mm
Armour deck 1,97" / 50 mm, Conning tower 7,09" / 180 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 92.494 shp / 69.000 Kw = 31,09 kts
Range 11.500nm at 12,00 kts

Complement:
658 - 855

Cost:
£3,592 million / $14,370 million

Distribution of weights at normal displacement:
Armament: 430 tons, 3,0%
Armour: 2.988 tons, 20,7%
Belts: 974 tons, 6,8%, Armament: 854 tons, 5,9%, Armour Deck: 1.070 tons, 7,4%
Conning Tower: 91 tons, 0,6%, Torpedo bulkhead: 0 tons, 0,0%
Machinery: 3.091 tons, 21,4%
Hull, fittings & equipment: 5.979 tons, 41,5%
Fuel, ammunition & stores: 1.813 tons, 12,6%
Miscellaneous weights: 120 tons, 0,8%

Metacentric height 3,2

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is excellent
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: 1,06
Shellfire needed to sink: 17.936 lbs / 8.135 Kg = 63,5 x 8,3 " / 210 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 2,0
(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: 0,64
Relative quality as seaboat: 1,20

Hull form characteristics:
Block coefficient: 0,520
Sharpness coefficient: 0,35
Hull speed coefficient 'M': 8,20
'Natural speed' for length: 25,55 kts
Power going to wave formation at top speed: 53 %
Trim: 59
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 93,8%
Relative accommodation and working space: 164,8%
(Average = 100%)
Displacement factor: 113%
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0,97
(Structure weight / hull surface area: 127 lbs / square foot or 620 Kg / square metre)
Relative longitudinal hull strength: 1,28
(for 22,05 ft / 6,72 m average freeboard, freeboard adjustment 5,75 ft)
Relative composite hull strength: 1,00

After modernization:

Displacement:
12.639 t light; 13.195 t standard; 14.422 t normal; 15.403 t full load

Dimensions: Length overall / water x beam x draught
665,18 ft / 652,89 ft x 69,72 ft x 21,33 ft (normal load)
202,75 m / 199,00 m x 21,25 m x 6,50 m

Armament:
8 - 8,27" / 210 mm guns (4x2 guns), 282,57lbs / 128,17kg shells, 1923 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
16 - 4,53" / 115 mm guns (8x2 guns), 46,40lbs / 21,05kg shells, 1938 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships
24 - 0,79" / 20,0 mm guns (4x6 guns), 0,24lbs / 0,11kg shells, 1923 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
10 - 1,57" / 40,0 mm guns (5x2 guns), 1,95lbs / 0,88kg shells, 1923 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
8 - 0,79" / 20,0 mm guns (4x2 guns), 0,24lbs / 0,11kg shells, 1923 Model
Machine guns in deck mounts
on side, evenly spread, 2 raised mounts
Weight of broadside 3.030 lbs / 1.374 kg
Shells per gun, main battery: 150

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5,91" / 150 mm 400,26 ft / 122,00 m 9,19 ft / 2,80 m
Ends: Unarmoured
Main Belt covers 94% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5,91" / 150 mm 4,72" / 120 mm 5,91" / 150 mm
2nd: 1,38" / 35 mm 0,98" / 25 mm 1,38" / 35 mm
3rd: 0,39" / 10 mm - -
4th: 0,59" / 15 mm - -
5th: 0,39" / 10 mm - -

- Armour deck: 2,76" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 93.834 shp / 70.000 Kw = 31,21 kts
Range 7.000nm at 15,00 kts
Bunker at max displacement = 2.208 tons

Complement:
657 - 855

Cost:
£3,490 million / $13,959 million

Distribution of weights at normal displacement:
Armament: 379 tons, 2,6%
Armour: 3.274 tons, 22,7%
- Belts: 919 tons, 6,4%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 780 tons, 5,4%
- Armour Deck: 1.575 tons, 10,9%
- Conning Tower: 0 tons, 0,0%
Machinery: 3.136 tons, 21,7%
Hull, fittings & equipment: 5.820 tons, 40,4%
Fuel, ammunition & stores: 1.783 tons, 12,4%
Miscellaneous weights: 30 tons, 0,2%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
19.176 lbs / 8.698 Kg = 67,9 x 8,3 " / 210 mm shells or 2,1 torpedoes
Stability (Unstable if below 1.00): 1,11
Metacentric height 3,5 ft / 1,1 m
Roll period: 15,6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,59
Seaboat quality (Average = 1.00): 1,22

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,520
Length to Beam Ratio: 9,36 : 1
'Natural speed' for length: 25,55 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 57
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: 26,57 ft / 8,10 m
- Forecastle (20%): 21,65 ft / 6,60 m
- Mid (50%): 21,65 ft / 6,60 m
- Quarterdeck (15%): 21,65 ft / 6,60 m
- Stern: 21,65 ft / 6,60 m
- Average freeboard: 22,05 ft / 6,72 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 91,6%
- Above water (accommodation/working, high = better): 193,9%
Waterplane Area: 30.890 Square feet or 2.870 Square metres
Displacement factor (Displacement / loading): 114%
Structure weight / hull surface area: 122 lbs/sq ft or 595 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,97
- Longitudinal: 1,28
- 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
Good seaboat, rides out heavy weather easily

HoOmAn

Keeper of the Sacred Block Coefficient

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4

Wednesday, January 26th 2005, 12:08pm

Cape Infante , laid down 1926, refitted 1942
Cape Agulhas , laid down 1927, refitted 1943



Displacement:
10.000 t light; 10.515 t standard (10.200 t officially); 11.458 t normal; 12.213 t full load

Dimensions: Length overall / water x beam x draught
631,64 ft / 617,62 ft x 62,34 ft x 20,83 ft (normal load)
192,53 m / 188,25 m x 19,00 m x 6,35 m

Armament:
8 - 8,27" / 210 mm guns (4x2 guns), 282,57lbs / 128,17kg shells, 1926 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
12 - 4,13" / 105 mm guns (6x2 guns), 35,32lbs / 16,02kg shells, 1926 Model
Breech loading guns in deck mounts
on side, evenly spread
20 - 1,57" / 40,0 mm guns (8 mounts), 1,95lbs / 0,88kg shells, 1923 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 6 raised mounts
12 - 0,79" / 20,0 mm guns (10 mounts), 0,24lbs / 0,11kg shells, 1924 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 2 raised mounts
Weight of broadside 2.726 lbs / 1.237 kg
Shells per gun, main battery: 180
8 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4,72" / 120 mm 439,17 ft / 133,86 m 8,53 ft / 2,60 m
Ends: Unarmoured
Main Belt covers 109% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4,13" / 105 mm 2,76" / 70 mm 3,94" / 100 mm
2nd: 0,98" / 25 mm - -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 1,77" / 45 mm, Conning tower: 1,18" / 30 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 93.834 shp / 70.000 Kw = 32,30 kts
Range 10.360nm at 12,00 kts
Bunker at max displacement = 1.699 tons

Complement:
553 - 719

Cost:
£3,651 million / $14,603 million

Distribution of weights at normal displacement:
Armament: 341 tons, 3,0%
Armour: 2.027 tons, 17,7%
- Belts: 727 tons, 6,3%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 446 tons, 3,9%
- Armour Deck: 841 tons, 7,3%
- Conning Tower: 13 tons, 0,1%
Machinery: 3.004 tons, 26,2%
Hull, fittings & equipment: 4.553 tons, 39,7%
Fuel, ammunition & stores: 1.459 tons, 12,7%
Miscellaneous weights: 75 tons, 0,7%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
10.602 lbs / 4.809 Kg = 37,5 x 8,3 " / 210 mm shells or 1,4 torpedoes
Stability (Unstable if below 1.00): 1,05
Metacentric height 2,7 ft / 0,8 m
Roll period: 15,9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,68
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,500
Length to Beam Ratio: 9,91 : 1
'Natural speed' for length: 24,85 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 70
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: 22,31 ft / 6,80 m
- Forecastle (31%): 18,21 ft / 5,55 m
- Mid (50%): 18,21 ft / 5,55 m
- Quarterdeck (15%): 18,21 ft / 5,55 m
- Stern: 18,21 ft / 5,55 m
- Average freeboard: 18,72 ft / 5,71 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 109,4%
- Above water (accommodation/working, high = better): 137,9%
Waterplane Area: 25.651 Square feet or 2.383 Square metres
Displacement factor (Displacement / loading): 106%
Structure weight / hull surface area: 113 lbs/sq ft or 554 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,98
- Longitudinal: 1,18
- 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

Displacement:
9.994 t light; 10.515 t standard; 11.458 t normal; 12.213 t full load

Dimensions: Length overall / water x beam x draught
631,88 ft / 617,62 ft x 62,34 ft x 20,83 ft (normal load)
192,60 m / 188,25 m x 19,00 m x 6,35 m

Armament:
8 - 8,27" / 210 mm guns (4x2 guns), 282,57lbs / 128,17kg shells, 1926 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
20 - 2,95" / 75,0 mm guns (10x2 guns), 12,87lbs / 5,84kg shells, 1942 Model
Automatic rapid fire guns in deck mounts with hoists
on side, evenly spread, 6 raised mounts
12 - 0,79" / 20,0 mm guns (2x6 guns), 0,24lbs / 0,11kg shells, 1935 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, 1924 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 2.524 lbs / 1.145 kg
Shells per gun, main battery: 200

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4,72" / 120 mm 439,17 ft / 133,86 m 8,53 ft / 2,60 m
Ends: Unarmoured
Main Belt covers 109% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4,13" / 105 mm 2,76" / 70 mm 3,94" / 100 mm
2nd: 1,18" / 30 mm - 0,98" / 25 mm
3rd: 0,39" / 10 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 1,77" / 45 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 93.834 shp / 70.000 Kw = 32,30 kts
Range 10.360nm at 12,00 kts
Bunker at max displacement = 1.699 tons

Complement:
553 - 719

Cost:
£3,595 million / $14,381 million

Distribution of weights at normal displacement:
Armament: 322 tons, 2,8%
Armour: 2.021 tons, 17,6%
- Belts: 727 tons, 6,3%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 453 tons, 4,0%
- Armour Deck: 841 tons, 7,3%
- Conning Tower: 0 tons, 0,0%
Machinery: 3.004 tons, 26,2%
Hull, fittings & equipment: 4.548 tons, 39,7%
Fuel, ammunition & stores: 1.464 tons, 12,8%
Miscellaneous weights: 100 tons, 0,9%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
10.657 lbs / 4.834 Kg = 37,7 x 8,3 " / 210 mm shells or 1,4 torpedoes
Stability (Unstable if below 1.00): 1,03
Metacentric height 2,6 ft / 0,8 m
Roll period: 16,2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,68
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,500
Length to Beam Ratio: 9,91 : 1
'Natural speed' for length: 24,85 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 70
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: 22,97 ft / 7,00 m
- Forecastle (31%): 18,21 ft / 5,55 m
- Mid (50%): 18,21 ft / 5,55 m
- Quarterdeck (15%): 18,21 ft / 5,55 m
- Stern: 18,21 ft / 5,55 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): 108,5%
- Above water (accommodation/working, high = better): 160,9%
Waterplane Area: 25.651 Square feet or 2.383 Square metres
Displacement factor (Displacement / loading): 107%
Structure weight / hull surface area: 113 lbs/sq ft or 553 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,98
- Longitudinal: 1,17
- 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

HoOmAn

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5

Friday, January 27th 2006, 10:29am

Ladon , laid down 1929, sunk 13-07-35 (gunfire)
Fafnir , laid down 1929



Displacement:
11.436 t light; 12.048 t standard (11.700 t officially); 13.455 t normal; 14.580 t full load

Dimensions: Length overall / water x beam x draught
671,73 ft / 656,17 ft x 68,90 ft x 20,83 ft (normal load)
204,74 m / 200,00 m x 21,00 m x 6,35 m

Armament:
10 - 8,27" / 210 mm guns (5x2 guns), 282,57lbs / 128,17kg shells, 1929 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 2 raised mounts - superfiring
12 - 4,13" / 105 mm guns (6x2 guns), 35,32lbs / 16,02kg shells, 1929 Model
Dual purpose guns in deck mounts
on side, evenly spread
20 - 1,57" / 40,0 mm guns (6 mounts), 1,95lbs / 0,88kg shells, 1929 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
24 - 0,79" / 20,0 mm guns (4 mounts), 0,24lbs / 0,11kg shells, 1929 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 2 raised guns
Weight of broadside 3.294 lbs / 1.494 kg
Shells per gun, main battery: 180
8 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5,91" / 150 mm 403,22 ft / 122,90 m 9,19 ft / 2,80 m
Ends: Unarmoured
Main Belt covers 95% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5,91" / 150 mm 3,15" / 80 mm 5,12" / 130 mm
2nd: 0,98" / 25 mm 0,59" / 15 mm -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 2,17" / 55 mm, Conning tower: 1,18" / 30 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 93.834 shp / 70.000 Kw = 31,65 kts
Range 9.000nm at 15,00 kts
Bunker at max displacement = 2.532 tons

Complement:
624 - 812

Cost:
£4,599 million / $18,394 million

Distribution of weights at normal displacement:
Armament: 412 tons, 3,1%
Armour: 2.789 tons, 20,7%
- Belts: 923 tons, 6,9%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 645 tons, 4,8%
- Armour Deck: 1.207 tons, 9,0%
- Conning Tower: 14 tons, 0,1%
Machinery: 2.882 tons, 21,4%
Hull, fittings & equipment: 5.294 tons, 39,3%
Fuel, ammunition & stores: 2.019 tons, 15,0%
Miscellaneous weights: 60 tons, 0,4%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
15.709 lbs / 7.125 Kg = 55,6 x 8,3 " / 210 mm shells or 1,9 torpedoes
Stability (Unstable if below 1.00): 1,11
Metacentric height 3,5 ft / 1,1 m
Roll period: 15,5 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,51
Seaboat quality (Average = 1.00): 1,03

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,500
Length to Beam Ratio: 9,52 : 1
'Natural speed' for length: 25,62 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 68
Bow angle (Positive = bow angles forward): 25,00 degrees
Stern overhang: 3,94 ft / 1,20 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24,93 ft / 7,60 m
- Forecastle (25%): 21,00 ft / 6,40 m
- Mid (56%): 21,00 ft / 6,40 m (13,12 ft / 4,00 m aft of break)
- Quarterdeck (15%): 13,12 ft / 4,00 m
- Stern: 13,12 ft / 4,00 m
- Average freeboard: 17,93 ft / 5,46 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 94,5%
- Above water (accommodation/working, high = better): 138,8%
Waterplane Area: 30.121 Square feet or 2.798 Square metres
Displacement factor (Displacement / loading): 113%
Structure weight / hull surface area: 119 lbs/sq ft or 582 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1,00
- Longitudinal: 1,00
- 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

HoOmAn

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6

Monday, March 26th 2007, 8:51am

Abderos , laid down 1933
Bellerophon , laid down 1934



Displacement:
11.683 t light; 12.281 t standard; 13.589 t normal; 14.636 t full load

Dimensions: Length overall / water x beam x draught
678,60 ft / 662,73 ft x 68,90 ft x 20,83 ft (normal load)
206,84 m / 202,00 m x 21,00 m x 6,35 m

Armament:
10 - 8,27" / 210 mm guns (5x2 guns), 341,72lbs / 155,00kg shells, 1933 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 2 raised mounts - superfiring
16 - 4,13" / 105 mm guns (8x2 guns), 35,32lbs / 16,02kg shells, 1933 Model
Breech loading guns in deck mounts
on side, evenly spread
20 - 1,57" / 40,0 mm guns (6 mounts), 1,95lbs / 0,88kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
24 - 0,79" / 20,0 mm guns (4 mounts), 0,24lbs / 0,11kg shells, 1933 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 2 raised guns
Weight of broadside 4.027 lbs / 1.827 kg
Shells per gun, main battery: 140
12 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5,91" / 150 mm 392,06 ft / 119,50 m 9,84 ft / 3,00 m
Ends: Unarmoured
Main Belt covers 91% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 7,09" / 180 mm 3,15" / 80 mm 4,72" / 120 mm
2nd: 0,98" / 25 mm 0,59" / 15 mm -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 2,17" / 55 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 93.833 shp / 70.000 Kw = 32,76 kts
Range 9.000nm at 15,00 kts
Bunker at max displacement = 2.355 tons

Complement:
629 - 818

Cost:
£5,448 million / $21,791 million

Distribution of weights at normal displacement:
Armament: 429 tons, 3,2%
Armour: 2.880 tons, 21,2%
- Belts: 966 tons, 7,1%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 647 tons, 4,8%
- Armour Deck: 1.267 tons, 9,3%
- Conning Tower: 0 tons, 0,0%
Machinery: 2.734 tons, 20,1%
Hull, fittings & equipment: 5.579 tons, 41,1%
Fuel, ammunition & stores: 1.907 tons, 14,0%
Miscellaneous weights: 60 tons, 0,4%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
16.603 lbs / 7.531 Kg = 58,8 x 8,3 " / 210 mm shells or 2,0 torpedoes
Stability (Unstable if below 1.00): 1,07
Metacentric height 3,3 ft / 1,0 m
Roll period: 16,0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,64
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0,500
Length to Beam Ratio: 9,62 : 1
'Natural speed' for length: 29,47 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 25,00 degrees
Stern overhang: 3,94 ft / 1,20 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25,59 ft / 7,80 m
- Forecastle (35%): 21,00 ft / 6,40 m
- Mid (62%): 21,00 ft / 6,40 m (13,12 ft / 4,00 m aft of break)
- Quarterdeck (15%): 13,12 ft / 4,00 m
- Stern: 13,12 ft / 4,00 m
- Average freeboard: 18,65 ft / 5,68 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 90,9%
- Above water (accommodation/working, high = better): 136,4%
Waterplane Area: 31.637 Square feet or 2.939 Square metres
Displacement factor (Displacement / loading): 115%
Structure weight / hull surface area: 122 lbs/sq ft or 594 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,99
- Longitudinal: 1,07
- 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

HoOmAn

Keeper of the Sacred Block Coefficient

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7

Saturday, June 27th 2009, 11:16am

Vengeance , laid down 1936
Revenge, laid down 1937



Displacement:
14.913 t light; 15.616 t standard; 16.901 t normal; 17.930 t full load

Dimensions: Length overall / water x beam x draught
665,04 ft / 652,89 ft x 74,64 ft x 24,28 ft (normal load)
202,70 m / 199,00 m x 22,75 m x 7,40 m

Armament:
9 - 9,84" / 250 mm guns (3x3 guns), 524,70lbs / 238,00kg shells, 1936 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
12 - 4,53" / 115 mm guns (6x2 guns), 46,40lbs / 21,05kg shells, 1936 Model
Breech loading guns in deck mounts with hoists
on side, evenly spread, 2 raised mounts
20 - 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 guns
24 - 0,79" / 20,0 mm guns (4x6 guns), 0,24lbs / 0,11kg shells, 1936 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, 1936 Model
Breech loading guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 5.327 lbs / 2.416 kg
Shells per gun, main battery: 120

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 7,87" / 200 mm 351,05 ft / 107,00 m 14,86 ft / 4,53 m
Ends: Unarmoured
Main Belt covers 83% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 8,66" / 220 mm 3,94" / 100 mm 7,87" / 200 mm
2nd: 1,38" / 35 mm 0,98" / 25 mm 1,38" / 35 mm
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 2,76" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 100.000 shp / 74.600 Kw = 32,13 kts
Range 8.000nm at 15,00 kts
Bunker at max displacement = 2.313 tons

Complement:
740 - 963

Cost:
£7,534 million / $30,134 million

Distribution of weights at normal displacement:
Armament: 612 tons, 3,6%
Armour: 4.513 tons, 26,7%
- Belts: 1.791 tons, 10,6%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 1.000 tons, 5,9%
- Armour Deck: 1.721 tons, 10,2%
- Conning Tower: 0 tons, 0,0%
Machinery: 2.806 tons, 16,6%
Hull, fittings & equipment: 6.882 tons, 40,7%
Fuel, ammunition & stores: 1.989 tons, 11,8%
Miscellaneous weights: 100 tons, 0,6%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
21.892 lbs / 9.930 Kg = 45,9 x 9,8 " / 250 mm shells or 2,5 torpedoes
Stability (Unstable if below 1.00): 1,12
Metacentric height 4,0 ft / 1,2 m
Roll period: 15,7 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0,56
Seaboat quality (Average = 1.00): 1,00

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0,500
Length to Beam Ratio: 8,75 : 1
'Natural speed' for length: 29,47 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 52
Bow angle (Positive = bow angles forward): 20,00 degrees
Stern overhang: 1,64 ft / 0,50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28,87 ft / 8,80 m
- Forecastle (35%): 22,97 ft / 7,00 m
- Mid (54%): 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: 20,17 ft / 6,15 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 82,7%
- Above water (accommodation/working, high = better): 157,2%
Waterplane Area: 33.764 Square feet or 3.137 Square metres
Displacement factor (Displacement / loading): 112%
Structure weight / hull surface area: 138 lbs/sq ft or 676 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,96
- Longitudinal: 1,35
- Overall: 1,00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent