Warships1 gibt die Reichweite der Iowas mit 20150/15kn an.
Schonmal gepostet:
Bismarck, Deutschland Schlachtschiff laid down 1937
Displacement:
43.118 t light; 45.085 t standard; 49.557 t normal; 53.134 t full load
Dimensions: Length overall / water x beam x draught
832,28 ft / 820,21 ft x 111,55 ft (Bulges 124,67 ft) x 32,81 ft (normal load)
253,68 m / 250,00 m x 34,00 m (Bulges 38,00 m) x 10,00 m
Armament:
8 - 16,14" / 410 mm guns (2x4 guns), 2.535,32lbs / 1.150,00kg shells, 1937 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
20 - 5,04" / 128 mm guns (10x2 guns), 63,99lbs / 29,03kg shells, 1937 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships, 4 raised mounts - superfiring
40 - 1,46" / 37,0 mm guns (20x2 guns), 1,55lbs / 0,70kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
80 - 0,79" / 20,0 mm guns (20x4 guns), 0,24lbs / 0,11kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 21.644 lbs / 9.817 kg
Shells per gun, main battery: 80
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 11,8" / 300 mm 424,18 ft / 129,29 m 12,66 ft / 3,86 m
Ends: Unarmoured
Decapping Plate: 1,97" / 50 mm 424,18 ft / 129,29 m 9,84 ft / 3,00 m
Main Belt covers 80% of normal length
- Torpedo Bulkhead and Bulges:
2,76" / 70 mm 424,18 ft / 129,29 m 29,17 ft / 8,89 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 18,1" / 460 mm 11,8" / 300 mm 15,7" / 400 mm
2nd: 1,18" / 30 mm 0,79" / 20 mm -
- Armour deck: 5,91" / 150 mm, Conning tower: 15,75" / 400 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 159.978 shp / 119.344 Kw = 31,00 kts
Range 15.000nm at 15,00 kts
Bunker at max displacement = 8.049 tons
Complement:
1.659 - 2.158
Cost:
£22,032 million / $88,129 million
Distribution of weights at normal displacement:
Armament: 2.273 tons, 4,6%
Armour: 14.985 tons, 30,2%
- Belts: 3.227 tons, 6,5%
- Torpedo bulkhead: 1.262 tons, 2,5%
- Armament: 3.001 tons, 6,1%
- Armour Deck: 7.037 tons, 14,2%
- Conning Tower: 458 tons, 0,9%
Machinery: 4.434 tons, 8,9%
Hull, fittings & equipment: 20.826 tons, 42,0%
Fuel, ammunition & stores: 6.439 tons, 13,0%
Miscellaneous weights: 600 tons, 1,2%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
80.509 lbs / 36.518 Kg = 38,3 x 16,1 " / 410 mm shells or 13,9 torpedoes
Stability (Unstable if below 1.00): 1,18
Metacentric height 8,0 ft / 2,4 m
Roll period: 18,5 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,49
Seaboat quality (Average = 1.00): 1,22
Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0,517
Length to Beam Ratio: 6,58 : 1
'Natural speed' for length: 33,80 kts
Power going to wave formation at

speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 58
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: 32,81 ft / 10,00 m
- Forecastle (20%): 31,17 ft / 9,50 m
- Mid (50%): 27,89 ft / 8,50 m (26,25 ft / 8,00 m aft of break)
- Quarterdeck (15%): 19,69 ft / 6,00 m
- Stern: 19,69 ft / 6,00 m
- Average freeboard: 26,21 ft / 7,99 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 79,6%
- Above water (accommodation/working, high = better): 192,2%
Waterplane Area: 64.415 Square feet or 5.984 Square metres
Displacement factor (Displacement / loading): 116%
Structure weight / hull surface area: 226 lbs/sq ft or 1.105 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,95
- Longitudinal: 1,58
- 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