Roter Löwe, German Offshore Patrol Vessel laid down 1944
Displacement: 2,000 t light; 2,061 t standard; 2,427 t normal; 2,720 t full load
Dimensions: Length overall / water x beam x draught
236.03 ft / 229.66 ft x 42.65 ft x 13.94 ft (normal load) [71.94 m / 70.00 m x 13.00 m x 4.25 m]
Armament:
2 - 3.46" / 88.0 mm guns in single mounts, 20.79lbs / 9.43kg shells, 1940 Model Anti-aircraft guns in deck mounts on centreline ends, evenly spread, 1 raised mount
4 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1938 Model Anti-aircraft guns in deck mounts on side, evenly spread, 2 raised mounts
Weight of broadside 43 lbs / 19 kg
Shells per gun, main battery: 500
Armour:
Belts: Width (max) Length (avg) Height (avg)
Main: 0.79" / 20 mm 164.04 ft / 50.00 m 16.40 ft / 5.00 m
Ends: 1.18" / 30 mm 32.81 ft / 10.00 m 16.40 ft / 5.00 m
32.81 ft / 10.00 m Unarmoured ends
Main Belt covers 110 % of normal length
Torpedo Bulkhead: 1.57" / 40 mm 229.66 ft / 70.00 m 16.40 ft / 5.00 m
Machinery:
Diesel Internal combustion generators, Electric motors, 1 shaft, 2,139 shp / 1,596 Kw = 14.00 kts
Range 11,950nm at 12.00 kts
Bunker at max displacement = 659 tons
Complement: 172 - 224
Cost: £0.553 million / $2.210 million
Distribution of weights at normal displacement:
Armament: 5 tons, 0.2 %
Armour: 335 tons, 13.8 %
- Belts: 116 tons, 4.8 %
- Torpedo bulkhead: 220 tons, 9.0 %
- Armament: 0 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 55 tons, 2.3 %
Hull, fittings & equipment: 1,535 tons, 63.2 %
Fuel, ammunition & stores: 427 tons, 17.6 %
Miscellaneous weights: 70 tons, 2.9 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship): 24,400 lbs / 11,068 Kg = 1,173.5 x 3.5 " / 88 mm shells or 13.7 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 1.8 ft / 0.6 m
Roll period: 13.3 seconds
Steadiness - As gun platform (Average = 50 %): 54 %
- Recoil effect (Restricted arc if above 1.00): 0.03
Seaboat quality (Average = 1.00): 2.00
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.622
Length to Beam Ratio: 5.38 : 1
'Natural speed' for length: 15.15 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 27
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: -0.82 ft / -0.25 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23.79 ft / 7.25 m
- Forecastle (20 %): 21.33 ft / 6.50 m
- Mid (50 %): 19.69 ft / 6.00 m
- Quarterdeck (20 %): 19.69 ft / 6.00 m
- Stern: 20.51 ft / 6.25 m
- Average freeboard: 20.54 ft / 6.26 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 27.1 %
- Above water (accommodation/working, high = better): 159.7 %
Waterplane Area: 7,178 Square feet or 667 Square metres
Displacement factor (Displacement / loading): 436 %
Structure weight / hull surface area: 106 lbs/sq ft or 519 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.64
- Longitudinal: 18.83
- Overall: 2.10
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
Belt armor and torpedo bulkhead used to sim strengthened hull for icebreaking.
Breakdown of miscellaneous weight:
Aircraft and handling gear - 45 tons
Surface search radar - 15 tons
Air search radar 10 tons
Roter Löwe Laid down 1 January 1944; Launched 15 May 1944; Completed 1 December 1944
Goldener Löwe Laid down 1 January 1944; Launched 15 May 1944; Completed 1 December 1944