WesWorld

Nagelring , laid down 1924, rebuild 1936



Displacement:
7.617 t light; 8.049 t standard; 8.696 t normal; 9.178 t full load
Loading submergence 697 tons/feet

Dimensions:
498,69 ft x 68,90 ft x 14,76 ft (normal load)
152,00 m x 21,00 m x 4,50 m

Armament:
6 - 9,84" / 250 mm guns (2 Main turrets x 3 guns)
10 - 3,46" / 88 mm guns
16 - 1,57" / 40 mm AA guns
12 - 0,79" / 20 mm guns
Weight of broadside 3.103 lbs / 1.407 kg
6 - 21,0" / 533 mm above water torpedoes

Armour:
Belt 4,72" / 120 mm, ends unarmoured
Belts cover 82% of normal area
Main turrets 7,09" / 180 mm, 2nd gun shields 0,98" / 25 mm
AA gun shields 0,98" / 25 mm, Light gun shields 0,59" / 15 mm
Armour deck 1,57" / 40 mm, Conning tower 5,91" / 150 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 4 shafts, 37.534 shp / 28.000 Kw = 25,55 kts (24kts officially)
Range 8.000nm at 12,00 kts

Complement:
450 - 585

Cost:
£2,366 million / $9,464 million

Distribution of weights at normal displacement:
Armament: 388 tons, 4,5%
Armour: 1.892 tons, 21,8%
Belts: 532 tons, 6,1%, Armament: 596 tons, 6,9%, Armour Deck: 711 tons, 8,2%
Conning Tower: 54 tons, 0,6%, Torpedo bulkhead: 0 tons, 0,0%
Machinery: 1.236 tons, 14,2%
Hull, fittings & equipment: 4.051 tons, 46,6%
Fuel, ammunition & stores: 1.079 tons, 12,4%
Miscellaneous weights: 50 tons, 0,6%

Metacentric height 3,5

Remarks:
Hull space for machinery, storage & compartmentation is excellent
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: 13.474 lbs / 6.112 Kg = 28,3 x 9,8 " / 250 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 2,1
(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: 0,53
Relative quality as seaboat: 1,02

Hull form characteristics:
Block coefficient: 0,600
Sharpness coefficient: 0,40
Hull speed coefficient 'M': 7,42
'Natural speed' for length: 22,33 kts
Power going to wave formation at top speed: 54 %
Trim: 68
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 81,6%
Relative accommodation and working space: 159,5%
(Average = 100%)
Displacement factor: 116%
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0,96
(Structure weight / hull surface area: 121 lbs / square foot or 590 Kg / square metre)
Relative longitudinal hull strength: 1,40
(for 17,55 ft / 5,35 m average freeboard, freeboard adjustment 2,83 ft)
Relative composite hull strength: 1,00

After Rebuild:

Displacement:
7.663 t light; 8.118 t standard; 8.696 t normal; 9.159 t full load

Dimensions: Length overall / water x beam x draught
513,90 ft / 498,69 ft x 68,90 ft x 14,76 ft (normal load)
156,64 m / 152,00 m x 21,00 m x 4,50 m

Armament:
6 - 9,84" / 250 mm guns (2x3 guns), 476,75lbs / 216,25kg shells, 1936 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
8 - 4,53" / 115 mm guns (4x2 guns), 46,40lbs / 21,05kg shells, 1936 Model
Anti-aircraft guns in deck mounts with hoists
on side, evenly spread, 2 raised mounts
16 - 1,57" / 40,0 mm guns (8x2 guns), 1,95lbs / 0,89kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 4 raised mounts
12 - 0,79" / 20,0 mm guns (2x6 guns), 0,24lbs / 0,11kg shells, 1936 Model
Breech loading guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 3.266 lbs / 1.481 kg
Shells per gun, main battery: 150

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4,72" / 120 mm 265,75 ft / 81,00 m 10,50 ft / 3,20 m
Ends: Unarmoured
Main Belt covers 82% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 7,09" / 180 mm 4,72" / 120 mm 7,09" / 180 mm
2nd: 1,38" / 35 mm 0,98" / 25 mm 0,98" / 25 mm
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 1,77" / 45 mm, Conning tower: 5,91" / 150 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 4 shafts, 37.534 shp / 28.000 Kw = 25,55 kts
Range 8.000nm at 12,00 kts
Bunker at max displacement = 1.041 tons

Complement:
449 - 585

Cost:
£4,000 million / $15,999 million

Distribution of weights at normal displacement:
Armament: 408 tons, 4,7%
Armour: 1.996 tons, 23,0%
- Belts: 594 tons, 6,8%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 525 tons, 6,0%
- Armour Deck: 824 tons, 9,5%
- Conning Tower: 54 tons, 0,6%
Machinery: 1.053 tons, 12,1%
Hull, fittings & equipment: 4.155 tons, 47,8%
Fuel, ammunition & stores: 1.033 tons, 11,9%
Miscellaneous weights: 50 tons, 0,6%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
14.691 lbs / 6.664 Kg = 30,8 x 9,8 " / 250 mm shells or 2,3 torpedoes
Stability (Unstable if below 1.00): 1,10
Metacentric height 3,4 ft / 1,0 m
Roll period: 15,6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,58
Seaboat quality (Average = 1.00): 1,05

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,600
Length to Beam Ratio: 7,24 : 1
'Natural speed' for length: 22,33 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 67
Bow angle (Positive = bow angles forward): 25,00 degrees
Stern overhang: 3,28 ft / 1,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25,59 ft / 7,80 m
- Forecastle (20%): 20,34 ft / 6,20 m
- Mid (65%): 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: 18,01 ft / 5,49 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 76,8%
- Above water (accommodation/working, high = better): 191,0%
Waterplane Area: 25.129 Square feet or 2.335 Square metres
Displacement factor (Displacement / loading): 117%
Structure weight / hull surface area: 122 lbs/sq ft or 596 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,95
- Longitudinal: 1,50
- Overall: 1,00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Alswinn , laid down 1926, sold 1942
Arwakr, laid down 1926, sunk 07-06-35 (torpedo)



Displacement:
1.878 t light; 1.973 t standard; 2.176 t normal; 2.338 t full load

Dimensions: Length overall / water x beam x draught
384,28 ft / 377,30 ft x 41,01 ft x 12,30 ft (normal load)
117,13 m / 115,00 m x 12,50 m x 3,75 m

Armament:
4 - 5,91" / 150 mm guns (2x2 guns), 102,98lbs / 46,71kg shells, 1926 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
8 - 3,46" / 88,0 mm guns (4x2 guns), 20,79lbs / 9,43kg shells, 1926 Model
Breech loading guns in deck mounts
on side, all amidships, 2 raised mounts - superfiring
8 - 1,57" / 40,0 mm guns (4x2 guns), 1,95lbs / 0,88kg shells, 1926 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, 1926 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 596 lbs / 270 kg
Shells per gun, main battery: 140
4 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2,76" / 70 mm 210,47 ft / 64,15 m 7,68 ft / 2,34 m
Ends: Unarmoured
Main Belt covers 86% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3,15" / 80 mm 1,38" / 35 mm 3,15" / 80 mm
2nd: 0,79" / 20 mm - -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 1,38" / 35 mm, Conning tower: 4,72" / 120 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 12.064 shp / 9.000 Kw = 24,03 kts
Range 6.200nm at 12,00 kts
Bunker at max displacement = 365 tons

Complement:
159 - 207

Cost:
£0,630 million / $2,520 million

Distribution of weights at normal displacement:
Armament: 74 tons, 3,4%
Armour: 540 tons, 24,8%
- Belts: 190 tons, 8,8%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 89 tons, 4,1%
- Armour Deck: 243 tons, 11,2%
- Conning Tower: 17 tons, 0,8%
Machinery: 386 tons, 17,7%
Hull, fittings & equipment: 853 tons, 39,2%
Fuel, ammunition & stores: 297 tons, 13,7%
Miscellaneous weights: 25 tons, 1,1%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2.943 lbs / 1.335 Kg = 28,6 x 5,9 " / 150 mm shells or 1,0 torpedoes
Stability (Unstable if below 1.00): 1,23
Metacentric height 1,9 ft / 0,6 m
Roll period: 12,4 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0,49
Seaboat quality (Average = 1.00): 1,61

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,400
Length to Beam Ratio: 9,20 : 1
'Natural speed' for length: 19,42 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 44
Bow angle (Positive = bow angles forward): 10,00 degrees
Stern overhang: 3,28 ft / 1,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21,00 ft / 6,40 m
- Forecastle (20%): 17,72 ft / 5,40 m
- Mid (50%): 17,72 ft / 5,40 m (9,84 ft / 3,00 m aft of break)
- Quarterdeck (15%): 9,84 ft / 3,00 m
- Stern: 9,84 ft / 3,00 m
- Average freeboard: 14,04 ft / 4,28 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 85,8%
- Above water (accommodation/working, high = better): 126,4%
Waterplane Area: 9.525 Square feet or 885 Square metres
Displacement factor (Displacement / loading): 113%
Structure weight / hull surface area: 55 lbs/sq ft or 270 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,72
- Longitudinal: 1,51
- Overall: 0,78
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
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Ringhorn , laid down 1928
Nagelfar , laid down 1928




(Drawing by Seawolf)

Displacement:
1.874 t light; 2.001 t standard; 2.176 t normal; 2.315 t full load

Dimensions: Length overall / water x beam x draught
384,28 ft / 377,30 ft x 41,01 ft x 12,30 ft (normal load)
117,13 m / 115,00 m x 12,50 m x 3,75 m

Armament:
12 - 5,00" / 127 mm guns (4x3 guns), 62,50lbs / 28,35kg shells, 1928 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, 1928 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, 1928 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
12 - 0,79" / 20,0 mm guns (5 mounts), 0,24lbs / 0,11kg shells, 1928 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 935 lbs / 424 kg
Shells per gun, main battery: 150
4 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2,36" / 60 mm 248,36 ft / 75,70 m 7,68 ft / 2,34 m
Ends: Unarmoured
Main Belt covers 101% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2,76" / 70 mm 1,18" / 30 mm 2,36" / 60 mm
2nd: 0,79" / 20 mm - -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 1,38" / 35 mm, Conning tower: 2,76" / 70 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 13.405 shp / 10.000 Kw = 24,68 kts
Range 5.400nm at 12,00 kts
Bunker at max displacement = 314 tons

Complement:
159 - 207

Cost:
£0,838 million / $3,354 million

Distribution of weights at normal displacement:
Armament: 117 tons, 5,4%
Armour: 589 tons, 27,1%
- Belts: 187 tons, 8,6%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 149 tons, 6,9%
- Armour Deck: 243 tons, 11,2%
- Conning Tower: 10 tons, 0,5%
Machinery: 399 tons, 18,3%
Hull, fittings & equipment: 770 tons, 35,4%
Fuel, ammunition & stores: 301 tons, 13,8%
Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1.938 lbs / 879 Kg = 31,0 x 5,0 " / 127 mm shells or 0,8 torpedoes
Stability (Unstable if below 1.00): 1,20
Metacentric height 1,8 ft / 0,6 m
Roll period: 12,7 seconds
Steadiness - As gun platform (Average = 50 %): 56 %
- Recoil effect (Restricted arc if above 1.00): 0,96
Seaboat quality (Average = 1.00): 1,74

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,400
Length to Beam Ratio: 9,20 : 1
'Natural speed' for length: 19,42 kts
Power going to wave formation at top speed: 50 %
Trim (Max stability = 0, Max steadiness = 100): 32
Bow angle (Positive = bow angles forward): 10,00 degrees
Stern overhang: 3,28 ft / 1,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21,00 ft / 6,40 m
- Forecastle (20%): 17,72 ft / 5,40 m
- Mid (70%): 17,72 ft / 5,40 m (9,84 ft / 3,00 m aft of break)
- Quarterdeck (15%): 9,84 ft / 3,00 m
- Stern: 9,84 ft / 3,00 m
- Average freeboard: 15,62 ft / 4,76 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 101,2%
- Above water (accommodation/working, high = better): 149,1%
Waterplane Area: 9.525 Square feet or 885 Square metres
Displacement factor (Displacement / loading): 92%
Structure weight / hull surface area: 47 lbs/sq ft or 227 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,50
- Longitudinal: 1,50
- Overall: 0,56
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Tyrfing , laid down 1928

Displacement:
7.622 t light; 8.074 t standard; 8.696 t normal; 9.193 t full load

Dimensions: Length overall / water x beam x draught
509,91 ft / 498,69 ft x 68,90 ft x 14,76 ft (normal load)
155,42 m / 152,00 m x 21,00 m x 4,50 m

Armament:
6 - 9,84" / 250 mm guns (2x3 guns), 476,75lbs / 216,25kg shells, 1928 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
10 - 4,13" / 105 mm guns (5x2 guns), 35,32lbs / 16,02kg shells, 1928 Model
Anti-aircraft guns in deck mounts
on side, all amidships
10 - 1,57" / 40,0 mm guns (3 mounts), 1,95lbs / 0,88kg shells, 1928 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
12 - 0,79" / 20,0 mm guns (6x2 guns), 0,24lbs / 0,11kg shells, 1928 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 3.236 lbs / 1.468 kg
Shells per gun, main battery: 150
6 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4,72" / 120 mm 368,64 ft / 112,36 m 10,17 ft / 3,10 m
Ends: Unarmoured
Main Belt covers 114% of normal length

- Torpedo Bulkhead:
0,98" / 25 mm 368,64 ft / 112,36 m 9,19 ft / 2,80 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 7,09" / 180 mm 3,54" / 90 mm 4,72" / 120 mm
2nd: 0,79" / 20 mm 0,39" / 10 mm -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 1,57" / 40 mm, Conning tower: 5,91" / 150 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 4 shafts, 37.534 shp / 28.000 Kw = 25,55 kts (24 kts officially)
Range 8.000nm at 12,00 kts
Bunker at max displacement = 1.119 tons

Complement:
449 - 585

Cost:
£2,941 million / $11,762 million

Distribution of weights at normal displacement:
Armament: 405 tons, 4,7%
Armour: 2.026 tons, 23,3%
- Belts: 745 tons, 8,6%
- Torpedo bulkhead: 123 tons, 1,4%
- Armament: 371 tons, 4,3%
- Armour Deck: 732 tons, 8,4%
- Conning Tower: 54 tons, 0,6%
Machinery: 1.169 tons, 13,4%
Hull, fittings & equipment: 3.973 tons, 45,7%
Fuel, ammunition & stores: 1.074 tons, 12,4%
Miscellaneous weights: 50 tons, 0,6%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
14.055 lbs / 6.375 Kg = 29,5 x 9,8 " / 250 mm shells or 2,6 torpedoes
Stability (Unstable if below 1.00): 1,15
Metacentric height 3,7 ft / 1,1 m
Roll period: 15,0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,50
Seaboat quality (Average = 1.00): 1,01

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,600
Length to Beam Ratio: 7,24 : 1
'Natural speed' for length: 22,33 kts
Power going to wave formation at top speed: 54 %
Trim (Max stability = 0, Max steadiness = 100): 69
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: 21,82 ft / 6,65 m
- Forecastle (20%): 19,23 ft / 5,86 m
- Mid (70%): 19,23 ft / 5,86 m (11,35 ft / 3,46 m aft of break)
- Quarterdeck (15%): 11,35 ft / 3,46 m
- Stern: 11,35 ft / 3,46 m
- Average freeboard: 17,07 ft / 5,20 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 113,7%
- Above water (accommodation/working, high = better): 163,3%
Waterplane Area: 25.129 Square feet or 2.335 Square metres
Displacement factor (Displacement / loading): 114%
Structure weight / hull surface area: 118 lbs/sq ft or 577 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,96
- Longitudinal: 1,33
- 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

Gungnir , laid down 1929



Displacement:
7.651 t light; 8.077 t standard; 8.694 t normal; 9.188 t full load

Dimensions: Length overall / water x beam x draught
547,66 ft / 531,50 ft x 64,63 ft x 14,76 ft (normal load)
166,93 m / 162,00 m x 19,70 m x 4,50 m

Armament:
9 - 8,27" / 210 mm guns (3x3 guns), 282,57lbs / 128,17kg shells, 1929 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
10 - 4,13" / 105 mm guns (5x2 guns), 35,32lbs / 16,02kg shells, 1929 Model
Anti-aircraft guns in deck mounts
on side, all amidships
12 - 1,57" / 40,0 mm guns (6x2 guns), 1,95lbs / 0,89kg shells, 1929 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, 1929 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 2.924 lbs / 1.326 kg
Shells per gun, main battery: 150
8 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4,72" / 120 mm 368,93 ft / 112,45 m 10,50 ft / 3,20 m
Ends: Unarmoured
Main Belt covers 107% of normal length

- Torpedo Bulkhead:
0,98" / 25 mm 368,93 ft / 112,45 m 8,86 ft / 2,70 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 7,09" / 180 mm 3,15" / 80 mm 4,72" / 120 mm
2nd: 0,79" / 20 mm 0,39" / 10 mm -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 1,77" / 45 mm, Conning tower: 5,51" / 140 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 4 shafts, 34.853 shp / 26.000 Kw = 25,36 kts (24 kts officially)
Range 8.000nm at 12,00 kts
Bunker at max displacement = 1.111 tons

Complement:
449 - 585

Cost:
£2,899 million / $11,594 million

Distribution of weights at normal displacement:
Armament: 365 tons, 4,2%
Armour: 2.242 tons, 25,8%
- Belts: 770 tons, 8,9%
- Torpedo bulkhead: 119 tons, 1,4%
- Armament: 479 tons, 5,5%
- Armour Deck: 823 tons, 9,5%
- Conning Tower: 50 tons, 0,6%
Machinery: 1.070 tons, 12,3%
Hull, fittings & equipment: 3.923 tons, 45,1%
Fuel, ammunition & stores: 1.043 tons, 12,0%
Miscellaneous weights: 50 tons, 0,6%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
15.079 lbs / 6.840 Kg = 53,4 x 8,3 " / 210 mm shells or 2,7 torpedoes
Stability (Unstable if below 1.00): 1,13
Metacentric height 3,3 ft / 1,0 m
Roll period: 15,0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,61
Seaboat quality (Average = 1.00): 1,13

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,600
Length to Beam Ratio: 8,22 : 1
'Natural speed' for length: 23,05 kts
Power going to wave formation at top speed: 50 %
Trim (Max stability = 0, Max steadiness = 100): 62
Bow angle (Positive = bow angles forward): 30,00 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%): 19,36 ft / 5,90 m
- Mid (70%): 19,36 ft / 5,90 m (11,42 ft / 3,48 m aft of break)
- Quarterdeck (15%): 11,42 ft / 3,48 m
- Stern: 11,42 ft / 3,48 m
- Average freeboard: 17,33 ft / 5,28 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 106,8%
- Above water (accommodation/working, high = better): 153,9%
Waterplane Area: 25.124 Square feet or 2.334 Square metres
Displacement factor (Displacement / loading): 118%
Structure weight / hull surface area: 113 lbs/sq ft or 554 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,98
- Longitudinal: 1,14
- 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

Excalibur , laid down 1935

Displacement:
7.963 t light; 8.380 t standard; 9.058 t normal; 9.600 t full load

Dimensions: Length overall / water x beam x draught
590,31 ft / 574,15 ft x 62,34 ft x 14,76 ft (normal load)
179,93 m / 175,00 m x 19,00 m x 4,50 m

Armament:
6 - 9,84" / 250 mm guns (2x3 guns), 524,70lbs / 238,00kg shells, 1935 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
8 - 4,13" / 105 mm guns (4x2 guns), 35,32lbs / 16,02kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side, all amidships, 2 raised mounts - superfiring
12 - 1,57" / 40,0 mm guns (4x3 guns), 1,95lbs / 0,88kg shells, 1935 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, 1935 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 3.458 lbs / 1.569 kg
Shells per gun, main battery: 120
8 - 21,0" / 533 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5,51" / 140 mm 252,62 ft / 77,00 m 10,50 ft / 3,20 m
Ends: Unarmoured
Main Belt covers 68% of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 7,09" / 180 mm 3,15" / 80 mm 5,91" / 150 mm
2nd: 0,98" / 25 mm 0,59" / 15 mm -
3rd: 0,59" / 15 mm - -
4th: 0,39" / 10 mm - -

- Armour deck: 2,76" / 70 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 32.172 shp / 24.000 Kw = 25,67 kts
Range 5.800nm at 15,00 kts
Bunker at max displacement = 1.220 tons

Complement:
463 - 603

Cost:
£3,765 million / $15,060 million

Distribution of weights at normal displacement:
Armament: 396 tons, 4,4%
Armour: 2.465 tons, 27,2%
- Belts: 661 tons, 7,3%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 413 tons, 4,6%
- Armour Deck: 1.391 tons, 15,4%
- Conning Tower: 0 tons, 0,0%
Machinery: 914 tons, 10,1%
Hull, fittings & equipment: 4.137 tons, 45,7%
Fuel, ammunition & stores: 1.095 tons, 12,1%
Miscellaneous weights: 50 tons, 0,6%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
17.128 lbs / 7.769 Kg = 35,9 x 9,8 " / 250 mm shells or 2,5 torpedoes
Stability (Unstable if below 1.00): 1,19
Metacentric height 3,4 ft / 1,0 m
Roll period: 14,3 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,64
Seaboat quality (Average = 1.00): 1,21

Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0,600
Length to Beam Ratio: 9,21 : 1
'Natural speed' for length: 27,23 kts
Power going to wave formation at top speed: 47 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 30,00 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%): 15,75 ft / 4,80 m
- Mid (70%): 15,75 ft / 4,80 m
- Quarterdeck (15%): 15,75 ft / 4,80 m
- Stern: 15,75 ft / 4,80 m
- Average freeboard: 16,54 ft / 5,04 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 67,5%
- Above water (accommodation/working, high = better): 149,6%
Waterplane Area: 27.281 Square feet or 2.535 Square metres
Displacement factor (Displacement / loading): 121%
Structure weight / hull surface area: 113 lbs/sq ft or 551 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,99
- Longitudinal: 1,04
- Overall: 1,00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily