Ger/CL/1914, Germany Light Cruiser laid down 1914
Displacement:
3,948 t light; 4,081 t standard; 4,286 t normal; 4,450 t full load
Dimensions: Length overall / water x beam x draught
430.80 ft / 430.00 ft x 40.00 ft x 17.00 ft (normal load)
131.31 m / 131.06 m x 12.19 m x 5.18 m
Armament:
9 - 5.00" / 127 mm guns in single mounts, 62.50lbs / 28.35kg shells, 1914 Model
Breech loading guns in deck mounts
on side ends, majority forward, all raised mounts - superfiring
Weight of broadside 563 lbs / 255 kg
Shells per gun, main battery: 150
2 - 21.0" / 533.4 mm above water torpedoes
Armour:
- Armour deck: 2.00" / 51 mm, Conning tower: 4.00" / 102 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 50,376 shp / 37,580 Kw = 31.00 kts
Range 2,950nm at 12.00 kts
Bunker at max displacement = 368 tons
Complement:
264 - 344
Cost:
£0.590 million / $2.361 million
Distribution of weights at normal displacement:
Armament: 70 tons, 1.6 %
Armour: 452 tons, 10.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.0 %
- Armour Deck: 429 tons, 10.0 %
- Conning Tower: 23 tons, 0.5 %
Machinery: 1,904 tons, 44.4 %
Hull, fittings & equipment: 1,522 tons, 35.5 %
Fuel, ammunition & stores: 337 tons, 7.9 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,259 lbs / 1,024 Kg = 36.1 x 5.0 " / 127 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.32
Metacentric height 2.1 ft / 0.6 m
Roll period: 11.7 seconds
Steadiness - As gun platform (Average = 50 %): 61 %
- Recoil effect (Restricted arc if above 1.00): 0.29
Seaboat quality (Average = 1.00): 1.22
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.513
Length to Beam Ratio: 10.75 : 1
'Natural speed' for length: 20.74 kts
Power going to wave formation at top speed: 62 %
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: 23.00 ft / 7.01 m
- Forecastle (20 %): 20.00 ft / 6.10 m
- Mid (35 %): 20.00 ft / 6.10 m (15.00 ft / 4.57 m aft of break)
- Quarterdeck (15 %): 15.00 ft / 4.57 m
- Stern: 15.00 ft / 4.57 m
- Average freeboard: 16.99 ft / 5.18 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 156.2 %
- Above water (accommodation/working, high = better): 124.3 %
Waterplane Area: 11,597 Square feet or 1,077 Square metres
Displacement factor (Displacement / loading): 88 %
Structure weight / hull surface area: 66 lbs/sq ft or 323 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.40
- Overall: 1.00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily
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Saturday, January 22, 2005
My latest attempt at the Ger/CL/1914 (a2)
I found my drawing of the Ger/CL/1914 from 2002, and decided to try again at using Springsharp. The ship is 430ft x 40ft x 17ft, and was intended to make 32 knots. The armament was 9-5in QF guns and 2-21in TT. The ship has a raised forecastle (at 35% of the length) and has three uncased funnels. The foremast and mainmast are both poles, with a crow's nest on the foremast. The aft 5in guns are superfiring on my drawing. There are 3-5in guns on each side with the rest on the centerline. The ship is relatively fast and a good seaboat. This is the report:
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