Ger/CL/1921 Fast A1, Germany Light Cruiser laid down 1921
Displacement:
6,660 t light; 6,909 t standard; 7,331 t normal; 7,669 t full load
Dimensions: Length overall / water x beam x draught
555.00 ft / 555.00 ft x 55.00 ft x 18.00 ft (normal load)
169.16 m / 169.16 m x 16.76 m x 5.49 m
Armament:
8 - 6.00" / 152 mm guns (4x2 guns), 108.00lbs / 48.99kg shells, 1921 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, all raised mounts - superfiring
4 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1921 Model
Quick firing guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 992 lbs / 450 kg
Shells per gun, main battery: 180
4 - 23.6" / 599.44 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1.00" / 25 mm 120.00 ft / 36.58 m 8.00 ft / 2.44 m
Ends: Unarmoured
Main Belt covers 33 % of normal length
Main belt does not fully cover magazines and engineering spaces
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm 0.50" / 13 mm 0.50" / 13 mm
2nd: 1.00" / 25 mm - -
- Armour deck: 0.50" / 13 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 86,889 shp / 64,819 Kw = 35.00 kts
Range 3,600nm at 15.00 kts
Bunker at max displacement = 759 tons
Complement:
395 - 514
Cost:
£1.925 million / $7.699 million
Distribution of weights at normal displacement:
Armament: 124 tons, 1.7 %
Armour: 302 tons, 4.1 %
- Belts: 51 tons, 0.7 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 62 tons, 0.8 %
- Armour Deck: 190 tons, 2.6 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 2,992 tons, 40.8 %
Hull, fittings & equipment: 3,242 tons, 44.2 %
Fuel, ammunition & stores: 671 tons, 9.2 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
5,070 lbs / 2,300 Kg = 46.9 x 6.0 " / 152 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.27
Metacentric height 3.1 ft / 1.0 m
Roll period: 13.1 seconds
Steadiness - As gun platform (Average = 50 %): 56 %
- Recoil effect (Restricted arc if above 1.00): 0.39
Seaboat quality (Average = 1.00): 1.13
Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.467
Length to Beam Ratio: 10.09 : 1
'Natural speed' for length: 26.97 kts
Power going to wave formation at top speed: 61 %
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 (% = measuring location as a percentage of overall length):
- Stem: 27.00 ft / 8.23 m
- Forecastle (20 %): 26.00 ft / 7.92 m
- Mid (37 %): 26.00 ft / 7.92 m (18.00 ft / 5.49 m aft of break)
- Quarterdeck (15 %): 18.00 ft / 5.49 m
- Stern: 18.00 ft / 5.49 m
- Average freeboard: 21.04 ft / 6.41 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 145.4 %
- Above water (accommodation/working, high = better): 176.2 %
Waterplane Area: 20,524 Square feet or 1,907 Square metres
Displacement factor (Displacement / loading): 101 %
Structure weight / hull surface area: 92 lbs/sq ft or 451 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.92
- Longitudinal: 1.96
- Overall: 1.00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
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Saturday, January 15, 2005
I had to accept less speed for my fast German light cruiser Ger/CL/1921
I just tried the Ger/CL/1921 very fast light cruiser. I had to accept a speed of 35 knots, but for that I got a good ship. The design has always been almost unprotected. There are just a few patched os 1/2in or 1in armor. The ship is trying to be like an Italian light cruiser from the 1920's or early 1930's, and is like a large destroyer, but better armed and with more seakeeping ability. I am started to insist on good seakeeping ability in what I do, despite the cost.
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