[SIZE=3]Iron Duke Class - 3 Units[/SIZE]
Benbow
Iron Duke
Malborough
In service but posibly soon to be decommisioned
Iron Duke, British Battleship laid down 1912
Displacement:
23.947 t light; 25.673 t standard; 27.875 t normal; 29.524 t full load
Dimensions: Length overall / water x beam x draught
623,00 ft / 623,00 ft x 90,00 ft x 29,00 ft (normal load)
189,89 m / 189,89 m x 27,43 m x 8,84 m
Armament:
8 - 13,50" / 343 mm guns (4x2 guns), 1.230,19lbs / 558,00kg shells, 1912 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
2 - 13,50" / 343 mm guns (1x2 guns), 1.230,18lbs / 558,00kg shells, 1912 Model
Breech loading guns in a turret (on a barbette)
on centreline amidships
10 - 6,00" / 152 mm guns in single mounts, 108,00lbs / 48,99kg shells, 1912 Model
Breech loading guns in casemate mounts
on side, all forward
2 - 6,00" / 152 mm guns in single mounts, 108,00lbs / 48,99kg shells, 1912 Model
Breech loading guns in casemate mounts
on side, all aft
2 guns in hull casemates - Limited use in heavy seas
2 - 2,99" / 76,0 mm guns in single mounts, 13,39lbs / 6,07kg shells, 1912 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 13.625 lbs / 6.180 kg
Shells per gun, main battery: 150
4 - 21,0" / 533,4 mm submerged torpedo tubes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 12,0" / 305 mm 400,00 ft / 121,92 m 12,00 ft / 3,66 m
Ends: 5,00" / 127 mm 223,00 ft / 67,97 m 12,00 ft / 3,66 m
Upper: 8,00" / 203 mm 400,00 ft / 121,92 m 8,00 ft / 2,44 m
Main Belt covers 99 % of normal length
- Torpedo Bulkhead:
2,00" / 51 mm 400,00 ft / 121,92 m 28,00 ft / 8,53 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 11,0" / 279 mm 8,00" / 203 mm 8,00" / 203 mm
2nd: 11,0" / 279 mm 8,00" / 203 mm 8,00" / 203 mm
3rd: 5,00" / 127 mm - -
4th: 5,00" / 127 mm - -
- Armour deck: 3,00" / 76 mm
Machinery:
Coal and oil fired boilers, steam turbines,
Geared drive, 4 shafts, 32.704 shp / 24.397 Kw = 21,00 kts
Range 7.900nm at 12,00 kts (Bunkerage = 3.963 tons)
Complement:
1.078 - 1.402
Cost:
£2,465 million / $9,859 million
Distribution of weights at normal displacement:
Armament: 1.703 tons, 6,1 %
Armour: 9.800 tons, 35,2 %
- Belts: 4.114 tons, 14,8 %
- Torpedo bulkhead: 829 tons, 3,0 %
- Armament: 2.631 tons, 9,4 %
- Armour Deck: 2.226 tons, 8,0 %
- Conning Tower: 0 tons, 0,0 %
Machinery: 1.399 tons, 5,0 %
Hull, fittings & equipment: 11.044 tons, 39,6 %
Fuel, ammunition & stores: 3.928 tons, 14,1 %
Miscellaneous weights: 0 tons, 0,0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
34.614 lbs / 15.701 Kg = 28,1 x 13,5 " / 343 mm shells or 4,7 torpedoes
Stability (Unstable if below 1.00): 1,22
Metacentric height 6,1 ft / 1,9 m
Steadiness - As gun platform (Average = 50 %): 39 %
- Recoil effect (Restricted arc if above 1.00): 0,71
Seaboat quality (Average = 1.00): 1,24
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,600
Length to Beam Ratio: 6,92 : 1
'Natural speed' for length: 24,96 kts
Power going to wave formation at top speed: 41 %
Trim (Max stability = 0, Max steadiness = 100): 25
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: 27,00 ft / 8,23 m
- Forecastle (20 %): 26,00 ft / 7,92 m
- Mid (50 %): 24,00 ft / 7,32 m
- Quarterdeck (15 %): 16,00 ft / 4,88 m
- Stern: 16,00 ft / 4,88 m
- Average freeboard: 22,18 ft / 6,76 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 85,1 %
- Above water (accommodation/working, high = better): 158,1 %
Waterplane Area: 40.113 Square feet or 3.727 Square metres
Displacement factor (Displacement / loading): 106 %
Structure weight / hull surface area: 187 lbs/sq ft or 914 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,95
- Longitudinal: 1,68
- 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