Ger/CS/1915, Germany Scout Cruiser laid down 1915 (Engine 1933)
Displacement:
2,121 t light; 2,206 t standard; 2,606 t normal; 2,926 t full load
Dimensions: Length overall / water x beam x draught
355.87 ft / 355.00 ft x 37.00 ft x 16.00 ft (normal load)
108.47 m / 108.20 m x 11.28 m x 4.88 m
Armament:
4 - 6.00" / 152 mm guns in single mounts, 100.00lbs / 45.36kg shells, 1915 Model
Breech loading guns in deck mounts with hoists
on centreline ends, evenly spread, 1 raised mount
Weight of broadside 400 lbs / 181 kg
Shells per gun, main battery: 150
4 - 23.6" / 599.44 mm above water torpedoes
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 59,122 shp / 44,105 Kw = 34.00 kts
Range 4,500nm at 18.00 kts
Bunker at max displacement = 720 tons
Complement:
182 - 237
Cost:
£0.464 million / $1.856 million
Distribution of weights at normal displacement:
Armament: 54 tons, 2.1 %
Machinery: 1,424 tons, 54.7 %
Hull, fittings & equipment: 642 tons, 24.7 %
Fuel, ammunition & stores: 485 tons, 18.6 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
551 lbs / 250 Kg = 5.1 x 6.0 " / 152 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.53
Metacentric height 2.3 ft / 0.7 m
Roll period: 10.2 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
- Recoil effect (Restricted arc if above 1.00): 0.41
Seaboat quality (Average = 1.00): 1.06
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.434
Length to Beam Ratio: 9.59 : 1
'Natural speed' for length: 18.84 kts
Power going to wave formation at top speed: 70 %
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: 25.00 ft / 7.62 m
- Forecastle (20 %): 23.00 ft / 7.01 m
- Mid (26 %): 23.00 ft / 7.01 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: 17.24 ft / 5.25 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 192.0 %
- Above water (accommodation/working, high = better): 100.2 %
Waterplane Area: 8,273 Square feet or 769 Square metres
Displacement factor (Displacement / loading): 67 %
Structure weight / hull surface area: 35 lbs/sq ft or 172 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.44
- Longitudinal: 2.45
- Overall: 0.52
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
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Wednesday, June 22, 2005
The scout cruiser design Ger/CS/1915
I don't believe that I have written about this previously. I have a pencil drawing for a scout cruiser design to be part of the emergency war program for 1915. They were to be called S-8 to S-19, so I would have built 12. The armament was 4-6in QF guns and 4-23.6in TT. The look is very German with two funnels with slanting caps and a raised forecastle that is relatively short. This is the Springsharp report:
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