Dear visitor, welcome to WesWorld. If this is your first visit here, please read the Help. It explains in detail how this page works. To use all features of this page, you should consider registering. Please use the registration form, to register here or read more information about the registration process. If you are already registered, please login here.
Quoted
Roon, German School Training Ship laid down 1948
Displacement: 1,440 t light; 1,509 t standard; 1,802 t normal; 2,036 t full load
Dimensions: Length overall / water x beam x draught
338.58 ft / 328.08 ft x 37.73 ft x 10.50 ft (normal load) [103.20 m / 100.00 m x 11.50 m x 3.20 m]
Armament:
4 - 5.04" / 128 mm guns (2x2 guns), 63.99lbs / 29.03kg shells, 1948 Model Dual purpose guns in deck mounts with hoists on centreline ends, evenly spread
4 - 2.17" / 55.0 mm guns (2x2 guns), 5.08lbs / 2.30kg shells, 1948 Model Anti-aircraft guns in deck mounts on centreline ends, evenly spread, all raised mounts
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1948 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, 1948 Model Anti-aircraft guns in deck mounts on side, evenly spread
Weight of broadside 283 lbs / 129 kg
Shells per gun, main battery: 200
Armour:
Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.59" / 15 mm 0.98" / 25 mm
2nd: 0.59" / 15 mm 0.59" / 15 mm -
3rd: 0.39" / 10 mm 0.39" / 10 mm -
Conning tower: 0.98" / 25 mm
Machinery:
Diesel Internal combustion motors, Geared drive, 2 shafts, 10,171 shp / 7,587 Kw = 24.00 kts
Range 8,000nm at 15.00 kts
Bunker at max displacement = 527 tons
Complement: 137 - 179
Cost: £0.857 million / $3.428 million
Distribution of weights at normal displacement:
Armament: 35 tons, 2.0 %
Armour: 18 tons, 1.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 15 tons, 0.8 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.2 %
Machinery: 249 tons, 13.8 %
Hull, fittings & equipment: 838 tons, 46.5 %
Fuel, ammunition & stores: 362 tons, 20.1 %
Miscellaneous weights: 300 tons, 16.6 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship): 3,604 lbs / 1,635 Kg = 56.3 x 5.0 " / 128 mm shells or 1.1 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 1.4 ft / 0.4 m
Roll period: 13.5 seconds
Steadiness - As gun platform (Average = 50 %): 67 %
- Recoil effect (Restricted arc if above 1.00): 0.40
Seaboat quality (Average = 1.00): 1.47
Hull form characteristics:
Hull has low quarterdeck and transom stern
Block coefficient: 0.485
Length to Beam Ratio: 8.70: 1
'Natural speed' for length: 20.94 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 46
Bow angle (Positive = bow angles forward): 19.50 degrees
Stern overhang: 4.10 ft / 1.25 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 18.04 ft / 5.50 m
- Forecastle (20 %): 16.40 ft / 5.00 m
- Mid (50 %): 14.76 ft / 4.50 m
- Quarterdeck (10 %): 6.56 ft / 2.00 m (14.76 ft / 4.50 m before break)
- Stern: 6.56 ft / 2.00 m
- Average freeboard: 14.65 ft / 4.47 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 79.2 %
- Above water (accommodation/working, high = better): 177.8 %
Waterplane Area: 8,461 Square feet or 786 Square metres
Displacement factor (Displacement / loading): 164 %
Structure weight / hull surface area: 60 lbs/sq ft or 291 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.91
- Longitudinal: 2.69
- Overall: 1.02
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily
Breakdown of miscellaneous weight:
Extra Accommodation for cadets: 100 tons
Classroom space for cadets: 50 tons
Recreation space: 50 tons
Radar and fire control equipment - 50 tons
Antisubmarine Training Equipment: 50 tons
Quoted
A destroyer by any other name is apparently a frigate...
Quoted
Armament:
32 - 2.17" / 55.0 mm guns (16x2 guns), 5.08lbs / 2.30kg shells, 1948 Model Anti-aircraft guns in deck mounts on side, evenly spread, all raised mounts
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1948 Model Anti-aircraft guns in deck mounts on side, evenly spread, all raised mounts
Weight of broadside 164 lbs / 75 kg
Shells per gun, main battery: 2,500
Quoted
Aviation equipment - catapults etc. - 300 tons
Forum Software: Burning Board® Lite 2.1.2 pl 1, developed by WoltLab® GmbH