GB/BB/1914 classic, Great Britain Battleship laid down 1914 (Engine 1937)
Displacement:
55,284 t light; 57,904 t standard; 61,643 t normal; 64,634 t full load
Dimensions: Length overall / water x beam x draught
801.01 ft / 800.00 ft x 120.00 ft x 34.00 ft (normal load)
244.15 m / 243.84 m x 36.58 m x 10.36 m
Armament:
9 - 18.00" / 457 mm guns (3x3 guns), 2,916.00lbs / 1,322.68kg shells, 1914 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, all raised mounts - superfiring
Main guns limited to end-on fire
20 - 5.00" / 127 mm guns (10x2 guns), 62.50lbs / 28.35kg shells, 1914 Model
Quick firing guns in deck mounts with hoists
on side, evenly spread, all raised mounts
Weight of broadside 27,494 lbs / 12,471 kg
Shells per gun, main battery: 90
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 18.0" / 457 mm 570.00 ft / 173.74 m 17.00 ft / 5.18 m
Ends: Unarmoured
Main Belt covers 110 % of normal length
- Torpedo Bulkhead:
2.00" / 51 mm 570.00 ft / 173.74 m 29.00 ft / 8.84 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 16.0" / 406 mm 8.00" / 203 mm 16.0" / 406 mm
2nd: 2.00" / 51 mm - -
- Armour deck: 7.00" / 178 mm, Conning tower: 12.00" / 305 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 98,882 shp / 73,766 Kw = 25.00 kts
Range 10,000nm at 15.00 kts
Bunker at max displacement = 6,730 tons
Complement:
1,955 - 2,542
Cost:
£6.625 million / $26.501 million
Distribution of weights at normal displacement:
Armament: 3,437 tons, 5.6 %
Armour: 24,139 tons, 39.2 %
- Belts: 7,477 tons, 12.1 %
- Torpedo bulkhead: 1,223 tons, 2.0 %
- Armament: 5,415 tons, 8.8 %
- Armour Deck: 9,620 tons, 15.6 %
- Conning Tower: 403 tons, 0.7 %
Machinery: 2,741 tons, 4.4 %
Hull, fittings & equipment: 24,968 tons, 40.5 %
Fuel, ammunition & stores: 6,359 tons, 10.3 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
103,709 lbs / 47,041 Kg = 35.6 x 18.0 " / 457 mm shells or 17.9 torpedoes
Stability (Unstable if below 1.00): 1.02
Metacentric height 6.8 ft / 2.1 m
Roll period: 19.3 seconds
Steadiness - As gun platform (Average = 50 %): 75 %
- Recoil effect (Restricted arc if above 1.00): 1.00
Seaboat quality (Average = 1.00): 1.49
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.661
Length to Beam Ratio: 6.67 : 1
'Natural speed' for length: 28.28 kts
Power going to wave formation at top speed: 46 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 2.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 29.00 ft / 8.84 m
- Forecastle (0 %): 26.00 ft / 7.92 m
- Mid (0 %): 26.00 ft / 7.92 m
- Quarterdeck (15 %): 26.00 ft / 7.92 m
- Stern: 26.00 ft / 7.92 m
- Average freeboard: 26.00 ft / 7.92 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 68.0 %
- Above water (accommodation/working, high = better): 188.2 %
Waterplane Area: 74,285 Square feet or 6,901 Square metres
Displacement factor (Displacement / loading): 108 %
Structure weight / hull surface area: 248 lbs/sq ft or 1,210 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.48
- 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
This is a forum for discussion of topics relating to the Dreadnought era, prior to the ascendency of naval aviation. We will be discussing history, ship design, and naval wargaming.
Wednesday, February 02, 2005
Sometimes things work really well: GB/BB/1914
My friend conceived of a 48,500 ton battleship that had 9-18in and 20-5in QF guns. It could make 25 knots and and would have a modern look. The idea was to mass produce them at the start of the impending naval wargame. Now that I am compensating for Springsharp's problem with machinery weight, this ship works really well (with 36 SHP/ton, which is pretty "edgy"). Predictably, we didn't allow enough displacement for a balanced design. This ship has a sterling report, although I reduced the freeboard to improve stability:
No comments:
Post a Comment