Ger/CS/1905, Germany Scout Cruiser laid down 1905 (Engine 1950)
Displacement:
1,888 t light; 1,946 t standard; 2,141 t normal; 2,297 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(372.10 ft / 370.00 ft) x 38.00 ft x (13.00 / 13.63 ft)
(113.42 m / 112.78 m) x 11.58 m x (3.96 / 4.15 m)
Armament:
5 - 4.00" / 102 mm 50.0 cal guns - 32.00lbs / 14.51kg shells, 150 per gun
Quick firing guns in deck and hoist mounts, 1905 Model
3 x Single mounts on centreline ends, majority aft
2 x Single mounts on sides, forward deck aft
Weight of broadside 160 lbs / 73 kg
2 - 18.0" / 457 mm, 20.00 ft / 6.10 m torpedoes - 0.865 t each, 1.729 t total
In 2 sets of deck mounted carriage/fixed tubes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.00" / 51 mm 180.00 ft / 54.86 m 8.00 ft / 2.44 m
Ends: Unarmoured
Upper: 2.00" / 51 mm 100.00 ft / 30.48 m 8.00 ft / 2.44 m
Main Belt covers 75 % of normal length
Main belt does not fully cover magazines and engineering spaces
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.00" / 76 mm 2.00" / 51 mm 3.00" / 76 mm
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 49,817 shp / 37,163 Kw = 34.00 kts
Range 4,500nm at 15.00 kts
Bunker at max displacement = 352 tons
Complement:
156 - 204
Cost:
£0.227 million / $0.906 million
Distribution of weights at normal displacement:
Armament: 54 tons, 2.5 %
- Guns: 52 tons, 2.4 %
- Torpedoes: 2 tons, 0.1 %
Armour: 270 tons, 12.6 %
- Belts: 204 tons, 9.5 %
- Armament: 67 tons, 3.1 %
Machinery: 1,017 tons, 47.5 %
Hull, fittings & equipment: 547 tons, 25.6 %
Fuel, ammunition & stores: 253 tons, 11.8 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
678 lbs / 307 Kg = 21.2 x 4.0 " / 102 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.26
Metacentric height 1.8 ft / 0.5 m
Roll period: 11.9 seconds
Steadiness - As gun platform (Average = 50 %): 54 %
- Recoil effect (Restricted arc if above 1.00): 0.18
Seaboat quality (Average = 1.00): 1.01
Hull form characteristics:
Hull has rise forward of midbreak,
a normal bow and a round stern
Block coefficient (normal/deep): 0.410 / 0.420
Length to Beam Ratio: 9.74 : 1
'Natural speed' for length: 19.24 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 53
Bow angle (Positive = bow angles forward): 5.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 16.00 %, 24.00 ft / 7.32 m, 22.00 ft / 6.71 m
- Forward deck: 12.00 %, 22.00 ft / 6.71 m, 22.00 ft / 6.71 m
- Aft deck: 57.00 %, 14.00 ft / 4.27 m, 14.00 ft / 4.27 m
- Quarter deck: 15.00 %, 14.00 ft / 4.27 m, 14.00 ft / 4.27 m
- Average freeboard: 16.37 ft / 4.99 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 161.2 %
- Above water (accommodation/working, high = better): 162.5 %
Waterplane Area: 8,707 Square feet or 809 Square metres
Displacement factor (Displacement / loading): 76 %
Structure weight / hull surface area: 34 lbs/sq ft or 165 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.46
- Longitudinal: 1.72
- Overall: 0.52
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.
Thursday, July 26, 2007
One of my favorite ship drawings and designs: the Ger/CS/1905
The Ger/CS/1905 is one of my favorite ship designs. I also really like the drawing that I did back in 2005. Sadly, in Springsharp, the design cannot be realized completely. The issue seems to revolve around Springsharp requiring too much power for a given speed and not being able to specify light-enough machinery. The best I can get from Springsharp is about 49 SHP/ton of machinery. When you realize that the British leader Swift was designed in 1905 and had 60 SHP/ton machinery, you can see the nature of the problem. This is the Springsharp report:
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