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