Kamerun, German Heavy Hull Repair Ship laid down 1949
Displacement: 10,614 t light; 10,943 t standard; 15,712 t normal; 19,527 t full load
Dimensions: Length overall / water x beam x draught
475.82 ft / 465.22 ft x 69.55 ft x 24.28 ft (normal load) [145.03 m / 141.80 m x 21.20 m x 7.40 m]
Armament:
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1944 Model Anti-aircraft guns in deck mounts on centreline ends, evenly spread
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1944 Model Anti-aircraft guns in deck mounts on side, evenly spread
4 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1944 Model Anti-aircraft guns in deck mounts on side, evenly spread
Weight of broadside 20 lbs / 9 kg
Shells per gun, main battery: 900
Machinery:
Diesel Internal combustion motors, Geared drive, 1 shaft, 10,346 shp / 7,718 Kw = 16.50 kts
Range 40,000nm at 14.00 kts
Bunker at max displacement = 8,585 tons
Complement: 701 - 912
Cost: £3.120 million / $12.479 million
Distribution of weights at normal displacement:
Armament: 2 tons, 0.0 %
Machinery: 250 tons, 1.6 %
Hull, fittings & equipment: 5,861 tons, 37.3 %
Fuel, ammunition & stores: 5,098 tons, 32.4 %
Miscellaneous weights: 4,500 tons, 28.6 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship): 37,692 lbs / 17,097 Kg = 24,387.9 x 1.5 " / 37 mm shells or 5.5 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 3.8 ft / 1.2 m
Roll period: 15.0 seconds
Steadiness - As gun platform (Average = 50 %): 69 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.86
Hull form characteristics:
Hull has raised forecastle, raised quarterdeck
Block coefficient: 0.700
Length to Beam Ratio: 6.69: 1
'Natural speed' for length: 21.57 kts
Power going to wave formation at top speed: 39 %
Trim (Max stability = 0, Max steadiness = 100): 37
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.61 ft / 7.50 m
- Forecastle (25 %): 21.33 ft / 6.50 m (14.76 ft / 4.50 m aft of break)
- Mid (50 %): 14.76 ft / 4.50 m
- Quarterdeck (15 %): 21.33 ft / 6.50 m (14.76 ft / 4.50 m before break)
- Stern: 22.31 ft / 6.80 m
- Average freeboard: 17.79 ft / 5.42 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 37.9 %
- Above water (accommodation/working, high = better): 103.3 %
Waterplane Area: 25,762 Square feet or 2,393 Square metres
Displacement factor (Displacement / loading): 313 %
Structure weight / hull surface area: 156 lbs/sq ft or 762 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.78
- Longitudinal: 2.59
- Overall: 1.85
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
Actual radius 12,000 nm on BAM of 2,674 tons (Bunkers per engines tab 1,486 tons). Low stowed cargo (3,000 tons) simmed as additional bunkers
Provision for navigational radar - 25 tons
Provision for air search radar - 25 tons
Provision for communication suite - 25 tons
Accommodation spaces for repair and service crews - 800 tons
Cranes and handling gear - 425 tons
Hull component repair workshops- 800 tons
Machinery component repair workshops - 800 tons
Ordnance component repair shops - 800 tons
Welding and fabrication shops- 800 tons
Low-stowed cargo spaces (3,000 tons) used for spare parts, materials, and equipment.
Equipped to carry out heavy hull repairs, first level repairs on ships' armament up to 15cm, and repair heavy machinery parts and ordnance parts, except guns. Has enhanced welding and salvage capabilities. Fitted with 30 ton booms
Projected cost: 2,654 tons (25% of 10,614 tons light displacement)
Projected construction time: 589 days (19.61 months)
Vessels are constructed to mercantile standards.