Ger/BB/1907, Germany Battleship laid down 1907 (Engine 1937)
Displacement:
24,922 t light; 25,800 t standard; 27,500 t normal; 28,860 t full load
Dimensions: Length overall / water x beam x draught
620.00 ft / 620.00 ft x 105.00 ft x 26.00 ft (normal load)
188.98 m / 188.98 m x 32.00 m x 7.92 m
Armament:
8 - 12.00" / 305 mm guns (4x2 guns), 864.00lbs / 391.90kg shells, 1907 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
12 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1907 Model
Quick firing guns in deck mounts with hoists
on side, all amidships
Weight of broadside 7,296 lbs / 3,309 kg
Shells per gun, main battery: 80
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 11.0" / 279 mm 360.00 ft / 109.73 m 16.00 ft / 4.88 m
Ends: Unarmoured
Main Belt covers 89 % of normal length
- Torpedo Bulkhead:
2.00" / 51 mm 360.00 ft / 109.73 m 25.00 ft / 7.62 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 11.0" / 279 mm 8.00" / 203 mm 11.0" / 279 mm
2nd: 2.00" / 51 mm - -
- Armour deck: 3.00" / 76 mm, Conning tower: 13.00" / 330 mm
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 4 shafts, 138,274 shp / 103,152 Kw = 30.20 kts
Range 4,700nm at 18.00 kts
Bunker at max displacement = 3,060 tons
Complement:
1,067 - 1,388
Cost:
£2.175 million / $8.700 million
Distribution of weights at normal displacement:
Armament: 912 tons, 3.3 %
Armour: 8,798 tons, 32.0 %
- Belts: 2,872 tons, 10.4 %
- Torpedo bulkhead: 666 tons, 2.4 %
- Armament: 2,438 tons, 8.9 %
- Armour Deck: 2,566 tons, 9.3 %
- Conning Tower: 255 tons, 0.9 %
Machinery: 3,832 tons, 13.9 %
Hull, fittings & equipment: 11,380 tons, 41.4 %
Fuel, ammunition & stores: 2,578 tons, 9.4 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
49,807 lbs / 22,592 Kg = 57.6 x 12.0 " / 305 mm shells or 7.9 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 6.9 ft / 2.1 m
Roll period: 16.8 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.38
Seaboat quality (Average = 1.00): 1.02
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.569
Length to Beam Ratio: 5.90 : 1
'Natural speed' for length: 24.90 kts
Power going to wave formation at top speed: 61 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): -1.00 degrees
Stern overhang: -2.00 ft / -0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 32.00 ft / 9.75 m
- Forecastle (20 %): 30.00 ft / 9.14 m
- Mid (67 %): 30.00 ft / 9.14 m
- Quarterdeck (15 %): 22.00 ft / 6.71 m
- Stern: 22.00 ft / 6.71 m
- Average freeboard: 28.24 ft / 8.61 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 87.0 %
- Above water (accommodation/working, high = better): 238.5 %
Waterplane Area: 46,235 Square feet or 4,295 Square metres
Displacement factor (Displacement / loading): 116 %
Structure weight / hull surface area: 175 lbs/sq ft or 854 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.92
- Longitudinal: 2.11
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
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.
Thursday, August 18, 2005
An expansive version of the Ger/BB/1907 design
My version of the Ger/BB/1907 design that is "pushing the envelople" must have dated from 1973. I was trying to get the most performance out of designs, while in 1971, I was keeping more to moderate speeds and machinery weight. This version depends very much on lightweight machinery:
No comments:
Post a Comment