Ger/CB/1915 D1, Germany Enter ship type laid down 1915
Displacement:
46,288 t light; 48,180 t standard; 52,997 t normal; 56,850 t full load
Dimensions: Length overall / water x beam x draught
901.89 ft / 900.00 ft x 100.00 ft x 30.00 ft (normal load)
274.90 m / 274.32 m x 30.48 m x 9.14 m
Armament:
6 - 16.50" / 419 mm guns (2x3 guns), 2,246.06lbs / 1,018.80kg shells, 1915 Model
Breech loading guns in turrets (on barbettes)
on centreline, all forward, all raised mounts - superfiring
12 - 6.00" / 152 mm guns (4x3 guns), 108.00lbs / 48.99kg shells, 1915 Model
Quick firing guns in turrets (on barbettes)
on side, all aft, all raised mounts - superfiring
Weight of broadside 14,772 lbs / 6,701 kg
Shells per gun, main battery: 100
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 8.00" / 203 mm 420.00 ft / 128.02 m 16.00 ft / 4.88 m
Ends: Unarmoured
Main Belt covers 72 % of normal length
Main belt does not fully cover magazines and engineering spaces
- Torpedo Bulkhead:
1.00" / 25 mm 420.00 ft / 128.02 m 28.00 ft / 8.53 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 8.00" / 203 mm 6.00" / 152 mm 8.00" / 203 mm
2nd: 4.00" / 102 mm 3.00" / 76 mm 4.00" / 102 mm
- Armour deck: 4.00" / 102 mm, Conning tower: 8.00" / 203 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 6 shafts, 316,605 shp / 236,187 Kw = 35.00 kts
Range 10,000nm at 15.00 kts
Bunker at max displacement = 8,670 tons
Complement:
1,746 - 2,270
Cost:
£7.055 million / $28.219 million
Distribution of weights at normal displacement:
Armament: 1,847 tons, 3.5 %
Armour: 10,889 tons, 20.5 %
- Belts: 2,417 tons, 4.6 %
- Torpedo bulkhead: 435 tons, 0.8 %
- Armament: 2,517 tons, 4.8 %
- Armour Deck: 5,276 tons, 10.0 %
- Conning Tower: 243 tons, 0.5 %
Machinery: 11,993 tons, 22.6 %
Hull, fittings & equipment: 21,560 tons, 40.7 %
Fuel, ammunition & stores: 6,709 tons, 12.7 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
62,316 lbs / 28,266 Kg = 27.7 x 16.5 " / 419 mm shells or 5.5 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 6.2 ft / 1.9 m
Roll period: 16.9 seconds
Steadiness - As gun platform (Average = 50 %): 55 %
- Recoil effect (Restricted arc if above 1.00): 0.94
Seaboat quality (Average = 1.00): 1.11
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.687
Length to Beam Ratio: 9.00 : 1
'Natural speed' for length: 30.00 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 3.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 36.00 ft / 10.97 m
- Forecastle (20 %): 33.00 ft / 10.06 m
- Mid (74 %): 33.00 ft / 10.06 m (25.00 ft / 7.62 m aft of break)
- Quarterdeck (15 %): 25.00 ft / 7.62 m
- Stern: 25.00 ft / 7.62 m
- Average freeboard: 31.16 ft / 9.50 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 124.7 %
- Above water (accommodation/working, high = better): 246.2 %
Waterplane Area: 71,302 Square feet or 6,624 Square metres
Displacement factor (Displacement / loading): 107 %
Structure weight / hull surface area: 205 lbs/sq ft or 1,003 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.32
- Overall: 1.00
Hull space for machinery, storage, compartmentation is cramped
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.
Sunday, January 09, 2005
I took another run at the Ger/CB/1915 design
I found a nice drawing (inboard profile and cross section of the hull, amidships, with armor thicknesses labeled. I couldn't ignore that, so I tried a 35 knot version. Except for being large, I like how it turned out. The ship has a tower foremast and three funnels. There are two triple 16.5in turrets forward (one superfiring), and four triple 6in turrets aft.
No comments:
Post a Comment