Untakeable, british battleship laid down 1904 (Engine 1905)
Displacement:
16 884 t light; 17 861 t standard; 19 310 t normal; 20 469 t full load
Dimensions: Length overall / water x beam x draught
547,97 ft / 547,97 ft x 80,84 ft x 26,67 ft (normal load)
167,02 m / 167,02 m x 24,64 m x 8,13 m
Armament:
4 - 10,00" / 254 mm guns (2x2 guns), 500,00lbs / 226,80kg shells, 1904 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
12 - 10,00" / 254 mm guns (6x2 guns), 500,00lbs / 226,80kg shells, 1904 Model
Breech loading guns in turrets (on barbettes)
on side, all amidships, 2 raised mounts - superfiring
16 - 4,02" / 102 mm guns in single mounts, 32,38lbs / 14,69kg shells, 1904 Model
Quick firing guns in casemate mounts
on side, evenly spread
Weight of broadside 8 518 lbs / 3 864 kg
Shells per gun, main battery: 115
2 - 18,0" / 457 mm submerged torpedo tubes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 10,0" / 254 mm 289,27 ft / 88,17 m 14,17 ft / 4,32 m
Ends: 2,99" / 76 mm 177,99 ft / 54,25 m 8,01 ft / 2,44 m
80,71 ft / 24,60 m Unarmoured ends
Main Belt covers 81% of normal length
Main belt does not fully cover magazines and engineering spaces
- Torpedo Bulkhead:
0,98" / 25 mm 351,61 ft / 107,17 m 17,98 ft / 5,48 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 10,0" / 254 mm 7,99" / 203 mm 11,0" / 279 mm
2nd: 10,0" / 254 mm 7,99" / 203 mm 11,0" / 279 mm
- Armour deck: 2,52" / 64 mm, Conning tower: 12,01" / 305 mm
Machinery:
Coal fired boilers, steam turbines,
Direct drive, 4 shafts, 22 294 shp / 16 631 Kw = 20,00 kts
Range 6 000nm at 10,00 kts
Bunker at max displacement = 2 608 tons (100% coal)
Complement:
818 - 1 064
Cost:
£1,745 million / $6,982 million
Distribution of weights at normal displacement:
Armament: 1 065 tons, 5,5%
Armour: 6 650 tons, 34,4%
- Belts: 2 024 tons, 10,5%
- Torpedo bulkhead: 230 tons, 1,2%
- Armament: 2 738 tons, 14,2%
- Armour Deck: 1 471 tons, 7,6%
- Conning Tower: 186 tons, 1,0%
Machinery: 1 858 tons, 9,6%
Hull, fittings & equipment: 7 312 tons, 37,9%
Fuel, ammunition & stores: 2 426 tons, 12,6%
Miscellaneous weights: 0 tons, 0,0%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
23 578 lbs / 10 695 Kg = 47,2 x 10,0 " / 254 mm shells or 3,8 torpedoes
Stability (Unstable if below 1.00): 1,01
Metacentric height 3,7 ft / 1,1 m
Roll period: 17,7 seconds
Steadiness - As gun platform (Average = 50 %): 68 %
- Recoil effect (Restricted arc if above 1.00): 0,80
Seaboat quality (Average = 1.00): 1,35
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,572
Length to Beam Ratio: 6,78 : 1
'Natural speed' for length: 23,41 kts
Power going to wave formation at top speed: 41 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): -10,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19,29 ft / 5,88 m
- Forecastle (17%): 17,62 ft / 5,37 m
- Mid (50%): 17,62 ft / 5,37 m
- Quarterdeck (20%): 17,62 ft / 5,37 m
- Stern: 17,62 ft / 5,37 m
- Average freeboard: 17,73 ft / 5,40 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 99,4%
- Above water (accommodation/working, high = better): 129,5%
Waterplane Area: 31 560 Square feet or 2 932 Square metres
Displacement factor (Displacement / loading): 102%
Structure weight / hull surface area: 162 lbs/sq ft or 790 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,97
- Longitudinal: 1,44
- Overall: 1,00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily
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