a challenge and my 1905 battleships is ready.
HMS Dreadnought, GB Battleships laid down 1905
HMS Dreadnought, GB Battleships D1905 laid down 1905
Displacement:
15,888 t light; 16,779 t standard; 18,132 t normal; 19,215 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(520.00 ft / 520.00 ft) x 84.00 ft x (29.00 / 30.30 ft)
(158.50 m / 158.50 m) x 25.60 m x (8.84 / 9.24 m)
Armament:
8 - 12.00" / 305 mm 45.0 cal guns - 860.00lbs / 390.09kg shells, 120 per gun
Breech loading guns in turret on barbette mounts, 1903 Model
2 x Twin mounts on centreline, evenly spread
2 x Twin mounts on centreline, aft deck forward
1 raised mount aft - superfiring
10 - 4.70" / 119 mm 45.0 cal guns - 45.00lbs / 20.41kg shells, 200 per gun
Quick firing guns in casemate mounts, 1885 Model
10 x Single mounts on side ends, majority forward
4 - 4.70" / 119 mm 44.0 cal guns - 45.00lbs / 20.41kg shells, 200 per gun
Quick firing guns in deck mounts, 1885 Model
4 x Single mounts on centreline, forward deck aft
4 raised mounts
Weight of broadside 7,510 lbs / 3,406 kg
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 11.0" / 279 mm 330.00 ft / 100.58 m 16.00 ft / 4.88 m
Ends: 4.00" / 102 mm 180.00 ft / 54.86 m 10.00 ft / 3.05 m
10.00 ft / 3.05 m Unarmoured ends
Main Belt covers 98 % of normal length
- Torpedo Bulkhead - Strengthened structural bulkheads:
1.00" / 25 mm 350.00 ft / 106.68 m 30.00 ft / 9.14 m
Beam between torpedo bulkheads 64.00 ft / 19.51 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 12.0" / 305 mm 7.00" / 178 mm 12.0" / 305 mm
2nd: 4.00" / 102 mm 4.00" / 102 mm 4.00" / 102 mm
3rd: 1.00" / 25 mm - -
- Armoured deck - multiple decks:
For and Aft decks: 3.00" / 76 mm
Forecastle: 1.00" / 25 mm Quarter deck: 1.00" / 25 mm
- Conning towers: Forward 12.00" / 305 mm, Aft 4.00" / 102 mm
Machinery:
Coal and oil fired boilers, steam turbines,
Direct drive, 4 shafts, 25,678 shp / 19,156 Kw = 21.00 kts
Range 6,600nm at 10.00 kts
Bunker at max displacement = 2,436 tons (70% coal)
Complement:
780 - 1,015
Cost:
£1.531 million / $6.124 million
Distribution of weights at normal displacement:
Armament: 1,361 tons, 7.5 %
- Guns: 1,361 tons, 7.5 %
Armour: 6,481 tons, 35.7 %
- Belts: 2,807 tons, 15.5 %
- Torpedo bulkhead: 389 tons, 2.1 %
- Armament: 1,621 tons, 8.9 %
- Armour Deck: 1,428 tons, 7.9 %
- Conning Towers: 238 tons, 1.3 %
Machinery: 2,077 tons, 11.5 %
Hull, fittings & equipment: 5,568 tons, 30.7 %
Fuel, ammunition & stores: 2,244 tons, 12.4 %
Miscellaneous weights: 400 tons, 2.2 %
- On freeboard deck: 200 tons
- Above deck: 200 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
23,316 lbs / 10,576 Kg = 27.0 x 12.0 " / 305 mm shells or 4.2 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 5.0 ft / 1.5 m
Roll period: 15.8 seconds
Steadiness - As gun platform (Average = 50 %): 75 %
- Recoil effect (Restricted arc if above 1.00): 0.55
Seaboat quality (Average = 1.00): 1.50
Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.501 / 0.508
Length to Beam Ratio: 6.19 : 1
'Natural speed' for length: 22.80 kts
Power going to wave formation at top speed: 45 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 25.00 ft / 7.62 m, 20.00 ft / 6.10 m
- Forward deck: 30.00 %, 20.00 ft / 6.10 m, 15.01 ft / 4.58 m
- Aft deck: 35.00 %, 15.01 ft / 4.58 m, 15.01 ft / 4.58 m
- Quarter deck: 15.00 %, 15.01 ft / 4.58 m, 15.01 ft / 4.58 m
- Average freeboard: 17.16 ft / 5.23 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 95.0 %
- Above water (accommodation/working, high = better): 115.0 %
Waterplane Area: 29,129 Square feet or 2,706 Square metres
Displacement factor (Displacement / loading): 103 %
Structure weight / hull surface area: 154 lbs/sq ft or 753 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.93
- Longitudinal: 1.82
- Overall: 1.00
Adequate machinery, storage, compartmentation space
Adequate accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather