WesWorld

Typ 1943 Fleet Tug, German Fleet/Salvage Tug laid down 1943

Displacement: 1,030 t light; 1,075 t standard; 1,840 t normal; 2,452 t full load

Dimensions: Length overall / water x beam x draught

218.08 ft / 213.25 ft x 39.37 ft x 13.94 ft (normal load) [66.47 m / 65.00 m x 12.00 m x 4.25 m]

Armament:

1 - 3.46" / 88.0 mm guns in single mounts, 20.79lbs / 9.43kg shells, 1940 Model Anti-aircraft gun in deck mount on centreline forward
2 - 1.46" / 37.0 mm guns (1x2 guns), 1.55lbs / 0.70kg shells, 1938 Model Anti-aircraft guns in deck mount on centreline amidships, all raised guns - superfiring
4 - 0.79" / 20.0 mm guns (2x2 guns), 0.24lbs / 0.11kg shells, 1938 Model Anti-aircraft guns in deck mounts on side, all amidships
Weight of broadside 25 lbs / 11 kg
Shells per gun, main battery: 500

Armour:

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.59" / 15 mm 0.39" / 10 mm -
2nd: 0.39" / 10 mm - -
3rd: 0.20" / 5 mm - -

Machinery:

Diesel Internal combustion motors, Geared drive, 2 shafts, 7,732 shp / 5,768 Kw = 20.00 kts
Range 16,000nm at 15.00 kts
Bunker at max displacement = 1,377 tons

Complement: 139 - 182

Cost: £0.436 million / $1.744 million

Distribution of weights at normal displacement:

Armament: 3 tons, 0.2 %
Armour: 1 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 200 tons, 10.9 %
Hull, fittings & equipment: 606 tons, 32.9 %
Fuel, ammunition & stores: 810 tons, 44.0 %
Miscellaneous weights: 220 tons, 12.0 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 4,460 lbs / 2,023 Kg = 214.5 x 3.5 " / 88 mm shells or 1.7 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 1.6 ft / 0.5 m
Roll period: 13.0 seconds
Steadiness - As gun platform (Average = 50 %): 73 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 1.12

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 5.42: 1
'Natural speed' for length: 14.60 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 65
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 18.04 ft / 5.50 m
- Forecastle (20 %): 17.22 ft / 5.25 m
- Mid (40 %): 16.40 ft / 5.00 m
- Quarterdeck (20 %): 9.84 ft / 3.00 m
- Stern: 9.84 ft / 3.00 m
- Average freeboard: 14.09 ft / 4.30 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 51.1 %
- Above water (accommodation/working, high = better): 115.3 %
Waterplane Area: 5,859 Square feet or 544 Square metres
Displacement factor (Displacement / loading): 285 %
Structure weight / hull surface area: 62 lbs/sq ft or 301 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.06
- Longitudinal: 5.20
- Overall: 1.24
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform


Breakdown of Miscellaneous Weight

Subsidiary low-speed towing diesel - 40 tons
Towing equipment - 80 tons
Salvage crane - 30 tons
High-capacity pumps - 20 tons
Submarine rescue apparatus/chamber - 25 tons
Reserved for future growth - 25 tons


Hummel – Laid down 1 January 1943; Launched 1 May 1943; Completed 28 Oct 1943
Natter – Laid down 1 January 1943; Launched 1 May 1943; Completed 28 Oct 1943
Mücke - Laid down 1 Aug 1943; Launched 29 Oct 1943; Completed 26 Apr 1943
Wespe - Laid down 1 Aug 1943; Launched 29 Oct 1943; Completed 26 Apr 1943

Typ 1943 Harbour Tug, German Harbour Tug laid down 1943

Displacement: 325 t light; 334 t standard; 409 t normal; 470 t full load

Dimensions: Length overall / water x beam x draught

99.75 ft / 95.14 ft x 24.28 ft x 9.84 ft (normal load) [30.40 m / 29.00 m x 7.40 m x 3.00 m]

Armament:

2 - 0.79" / 20.0 mm guns (1x2 guns), 0.24lbs / 0.11kg shells, 1938 Model Anti-aircraft guns in deck mount on centreline amidships, all raised guns - superfiring
Weight of broadside 0 lbs / 0 kg
Shells per gun, main battery: 3,000

Machinery:

Diesel Internal combustion motors, Geared drive, 2 shafts, 828 shp / 617 Kw = 13.00 kts
Range 9,000nm at 10.00 kts
Bunker at max displacement = 136 tons

Complement: 45 - 59

Cost: £0.094 million / $0.377 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %
Machinery: 21 tons, 5.2 %
Hull, fittings & equipment: 243 tons, 59.4 %
Fuel, ammunition & stores: 85 tons, 20.7 %
Miscellaneous weights: 60 tons, 14.7 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 1,409 lbs / 639 Kg = 5,772.5 x 0.8 " / 20 mm shells or 1.4 torpedoes
Stability (Unstable if below 1.00): 1.04
Metacentric height 0.6 ft / 0.2 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 42 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.00

Hull form characteristics:

Hull has rise forward of midbreak
Block coefficient: 0.630
Length to Beam Ratio: 3.92: 1
'Natural speed' for length: 9.75 kts
Power going to wave formation at top speed: 72 %
Trim (Max stability = 0, Max steadiness = 100): 36
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 13.94 ft / 4.25 m
- Forecastle (10 %): 13.94 ft / 4.25 m
- Mid (50 %): 13.94 ft / 4.25 m (6.56 ft / 2.00 m aft of break)
- Quarterdeck (25 %): 6.56 ft / 2.00 m
- Stern: 6.56 ft / 2.00 m
- Average freeboard: 10.25 ft / 3.13 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 34.7 %
- Above water (accommodation/working, high = better): 81.7 %
Waterplane Area: 1,737 Square feet or 161 Square metres
Displacement factor (Displacement / loading): 396 %
Structure weight / hull surface area: 75 lbs/sq ft or 367 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.96
- Longitudinal: 29.09
- Overall: 2.56
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is cramped

Breakdown of Miscellaneous Weight

Subsidiary low-speed towing diesel - 10 tons
Towing equipment - 40 tons
High-capacity pumps - 10 tons


Bullenriff – Laid down 1 Jan 1943; Launched 22 Feb 1943; Completed 10 May 1943
Gänsewerder – Laid down 1 Jan 1943; Launched 22 Feb 1943; Completed 10 May 1943
Langenwerder - Laid down 1 Apr 1943; Launched 23 May 1943; Completed 8 Aug 1943
Vlim - Laid down 1 Apr 1943; Launched 23 May 1943; Completed 8 Aug 1943
Beuchel - Laid down 1 January 1946; Launched 22 February 1946; Completed 10 May 1946
Poel - Laid down 1 January 1946; Launched 22 February 1946; Completed 10 May 1946
Ruden - Laid down 2 April 1946; Launched 24 May 1946; Completed 9 August 1946
Usedom - Laid down 2 April 1946; Launched 24 May 1946; Completed 9 August 1946

Typ 1943 German Coastal Forces Depot Ship laid down 1941

Displacement: 2,193 t light; 2,325 t standard; 5,125 t normal; 7,365 t full load

Dimensions: Length overall / water x beam x draught

278.97 ft / 265.75 ft x 43.96 ft x 23.62 ft (normal load) [85.03 m / 81.00 m x 13.40 m x 7.20 m]

Armament:

4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1938 Model Anti-aircraft guns in deck mounts on centreline, evenly spread, all raised mounts
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1938 Model Anti-aircraft guns in deck mounts on side, all aft, all raised mounts - superfiring
Weight of broadside 8 lbs / 4 kg
Shells per gun, main battery: 5,000

Armour:

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.59" / 15 mm - -
2nd: 0.39" / 10 mm - -

Machinery:

Oil fired boilers, complex reciprocating steam engines, Geared drive, 1 shaft, 1,798 ihp / 1,341 Kw = 12.00 kts
Range 75,000nm at 10.00 kts
Bunker at max displacement = 5,040 tons

Complement: 302 - 393

Cost:
£0.565 million / $2.261 million

Distribution of weights at normal displacement:

Armament: 1 tons, 0.0 %
Armour: 1 tons, 0.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 99 tons, 1.9 %
Hull, fittings & equipment: 1,092 tons, 21.3 %
Fuel, ammunition & stores: 2,932 tons, 57.2 %
Miscellaneous weights: 1,000 tons, 19.5 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 16,934 lbs / 7,681 Kg = 10,957.0 x 1.5 " / 37 mm shells or 4.4 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 1.9 ft / 0.6 m
Roll period: 13.4 seconds
Steadiness - As gun platform (Average = 50 %): 72 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has raised forecastle
Block coefficient: 0.650
Length to Beam Ratio: 6.04: 1
'Natural speed' for length: 16.30 kts
Power going to wave formation at top speed: 38 %
Trim (Max stability = 0, Max steadiness = 100): 36
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.33 ft / 6.50 m
- Forecastle (10 %): 21.33 ft / 6.50 m (14.76 ft / 4.50 m aft of break)
- Mid (30 %): 14.76 ft / 4.50 m
- Quarterdeck (30 %): 21.33 ft / 6.50 m
- Stern: 21.33 ft / 6.50 m
- Average freeboard: 18.70 ft / 5.70 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 29.8 %
- Above water (accommodation/working, high = better): 94.3 %
Waterplane Area: 8,825 Square feet or 820 Square metres
Displacement factor (Displacement / loading): 425 %
Structure weight / hull surface area: 62 lbs/sq ft or 300 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.87
- Longitudinal: 5.78
- Overall: 1.05
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather


Converted from Waldstadt class Timber Carriers

Low-stowed cargo simmed as additional bunkers. Normal radius 7,500 nm at 10 knots, with bunkers of 303 tons.

Breakdown of low-stowed cargo

Diesel fuel - 600 tons
Ordnance stores - 600 tons
Dry stores - 300 tons

Breakdown of miscellaneous weight:

Cargo handling gear - 100 tons
Accommodations for crew of supported craft - 110 tons
Rest and recreation facilities - 100 tons
Engine maintenance shop - 150 tons
Ordnance maintenance shop - 150 tons
Hull maintenance shop - 150 tons
Accommodations for workshop crews (120 personnel) - 240 tons

Cost to convert - 550 tons
Time to convert - 84 days


Benjamin Raule – Conversion commenced 1 October 1943; Conversion completed 24 December 1943
Rudolf Bromme – Conversion commenced 1 October 1943; Conversion completed 24 December 1943

Rhon, German Support Tanker laid down 1940 (Converted 1944)

Displacement: 4,529 t light; 4,930 t standard; 19,373 t normal; 30,927 t full load

Dimensions: Length overall / water x beam x draught

536.41 ft / 524.93 ft x 65.62 ft x 26.25 ft (normal load) [163.50 m / 160.00 m x 20.00 m x 8.00 m]

Armament:

2 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1940 Model Anti-aircraft guns in deck mounts on centreline ends, evenly spread, all raised mounts
4 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1938 Model Anti-aircraft guns in deck mounts on side, all aft, all raised mounts - superfiring
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, all raised mounts
Weight of broadside 78 lbs / 35 kg
Shells per gun, main battery: 300

Armour:

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.39" / 10 mm -
2nd: 0.39" / 10 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -

Machinery:

Diesel Internal combustion motors, Geared drive, 1 shaft, 3,840 shp / 2,864 Kw = 12.00 kts
Range 145,000nm at 12.00 kts
Bunker at max displacement = 25,997 tons

Complement: 820 - 1,067

Cost: £1.086 million / $4.345 million

Distribution of weights at normal displacement:

Armament: 10 tons, 0.1 %
Armour: 5 tons, 0.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 5 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 103 tons, 0.5 %
Hull, fittings & equipment: 3,961 tons, 20.4 %
Fuel, ammunition & stores: 14,844 tons, 76.6 %
Miscellaneous weights: 450 tons, 2.3 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 379,538 lbs / 172,156 Kg = 10,745.3 x 4.1 " / 105 mm shells or 54.7 torpedoes
Stability (Unstable if below 1.00): 2.00
Metacentric height 8.0 ft / 2.4 m
Roll period: 9.8 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.750
Length to Beam Ratio: 8.00: 1
'Natural speed' for length: 22.91 kts
Power going to wave formation at top speed: 21 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 24.61 ft / 7.50 m
- Forecastle (20 %): 20.34 ft / 6.20 m
- Mid (50 %): 20.34 ft / 6.20 m
- Quarterdeck (15 %): 20.34 ft / 6.20 m
- Stern: 20.34 ft / 6.20 m
- Average freeboard: 20.68 ft / 6.30 m
Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 6.7 %
- Above water (accommodation/working, high = better): 136.3 %
Waterplane Area: 28,851 Square feet or 2,680 Square metres
Displacement factor (Displacement / loading): 1,000 %
Structure weight / hull surface area: 89 lbs/sq ft or 434 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.39
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Breakdown of miscellaneous weight:

Strengthened handling gear, booms, pumps for refueling at sea: 300 tons
Storerooms for dry provisions and supplies: 150 tons

True bunkers 1,284 tons for radius of 12,000 nm at 12 knots; remainder of bunkers used to sim POL as cargo: 13,159 tons

Cost of conversion: 1,136 tons; time for conversion 102 days


Rhön -  Conversion commenced 1 January 1944; Conversion complete 12 April 1944
Spessart -  Conversion commenced 1 January 1944; Conversion complete 12 April 1944
Eider - Conversion commenced 1 July 1944; Conversion complete 11 October 1944
Trave - Conversion commenced 1 July 1944; Conversion complete 11 October 1944

Dänholm, German Buoy Tender laid down 1945

Displacement: 1,105 t light; 1,136 t standard; 1,296 t normal; 1,425 t full load

Dimensions: Length overall / water x beam x draught

183.76 ft / 180.45 ft x 36.09 ft x 12.14 ft (normal load) [56.01 m / 55.00 m x 11.00 m x 3.70 m]

Armament:

2 - 1.46" / 37.0 mm guns (1x2 guns), 1.55lbs / 0.70kg shells, 1945 Model Anti-aircraft guns in deck mount on centreline aft
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1945 Model Anti-aircraft guns in deck mounts on side, evenly spread
Weight of broadside 4 lbs / 2 kg
Shells per gun, main battery: 2,400

Armour:

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.59" / 15 mm 0.39" / 10 mm -
2nd: 0.39" / 10 mm - -

Machinery:

Diesel Internal combustion motors, Geared drive, 2 shafts, 1,169 shp / 872 Kw = 13.00 kts
Range 12,000nm at 10.00 kts
Bunker at max displacement = 289 tons

Complement: 107 - 140

Cost: £0.298 million / $1.193 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %
Armour: 1 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 30 tons, 2.3 %
Hull, fittings & equipment: 854 tons, 65.9 %
Fuel, ammunition & stores: 192 tons, 14.8 %
Miscellaneous weights: 220 tons, 17.0 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 5,239 lbs / 2,377 Kg = 3,390.0 x 1.5 " / 37 mm shells or 3.1 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 1.3 ft / 0.4 m
Roll period: 13.3 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.97

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.574
Length to Beam Ratio: 5.00: 1
'Natural speed' for length: 13.43 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 36
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 15.58 ft / 4.75 m
- Forecastle (10 %): 9.84 ft / 3.00 m
- Mid (50 %): 12.30 ft / 3.75 m
- Quarterdeck (35 %): 12.30 ft / 3.75 m
- Stern: 12.30 ft / 3.75 m
- Average freeboard: 11.79 ft / 3.60 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 28.1 %
- Above water (accommodation/working, high = better): 94.4 %
Waterplane Area: 4,648 Square feet or 432 Square metres
Displacement factor (Displacement / loading): 457 %
Structure weight / hull surface area: 117 lbs/sq ft or 570 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 2.38
- Longitudinal: 9.85
- Overall: 2.74
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Breakdown of Miscellaneous Weight

Provision for buoy-handing derrick and equipment - 120 tons
Provision for deck cargo (buoys, etc) - 100 tons


Dänholm – Laid down 1 January 1945; Launched 3 May 1945; Completed 31 October 1945
Mährens – Laid down 1 January 1945; Launched 3 May 1945; Completed 31 October 1945

Kieler Bucht, German Boom Defence Vessel laid down 1946

Displacement: 188 t light; 192 t standard; 210 t normal; 224 t full load

Dimensions: Length overall / water x beam x draught

122.19 ft / 118.11 ft x 22.97 ft x 4.92 ft (normal load) [37.24 m / 36.00 m x 7.00 m x 1.50 m]

Armament:

2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1940 Model Anti-aircraft guns in deck mounts on side, all aft, all raised mounts - superfiring
Weight of broadside 0 lbs / 0 kg
Shells per gun, main battery: 1,200

Machinery:

Diesel Internal combustion motors, Geared drive, 1 shaft, 328 shp / 244 Kw = 12.00 kts
Range 3,500nm at 10.00 kts
Bunker at max displacement = 32 tons

Complement: 26 - 35

Cost: £0.055 million / $0.220 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %
Machinery: 8 tons, 3.9 %
Hull, fittings & equipment: 100 tons, 47.4 %
Fuel, ammunition & stores: 22 tons, 10.5 %
Miscellaneous weights: 80 tons, 38.1 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 557 lbs / 253 Kg = 2,283.8 x 0.8 " / 20 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 0.7 ft / 0.2 m
Roll period: 11.8 seconds
Steadiness - As gun platform (Average = 50 %): 62 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has raised quarterdeck
Block coefficient: 0.551
Length to Beam Ratio: 5.14: 1
'Natural speed' for length: 10.87 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 31
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 11.48 ft / 3.50 m
- Forecastle (18 %): 9.02 ft / 2.75 m
- Mid (50 %): 6.56 ft / 2.00 m
- Quarterdeck (22 %): 12.80 ft / 3.90 m (6.56 ft / 2.00 m before break)
- Stern: 12.80 ft / 3.90 m
- Average freeboard: 8.95 ft / 2.73 m
Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 55.5 %
- Above water (accommodation/working, high = better): 97.1 %
Waterplane Area: 1,837 Square feet or 171 Square metres
Displacement factor (Displacement / loading): 217 %
Structure weight / hull surface area: 33 lbs/sq ft or 160 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.16
- Longitudinal: 6.83
- Overall: 1.39
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

Miscellaneous weight represents netlaying equipment and nets


Kieler Bucht – Constructed in 1st Quarter 1946
Lübecker Bucht – Constructed in 1st Quarter 1946
Mecklenburger Bucht – Constructed in 1st Quarter 1946
Pommersche Bucht - Constructed in 2nd Quarter 1946
Wismarer Bucht - Constructed in 2nd Quarter 1946
Geltinger Bucht - Constructed in 2nd Quarter 1946
Helgoländer Bucht - Constructed in 3rd Quarter 1946
Meldorfer Bucht - Constructed in 3rd Quarter 1946
Boltenhagener Bucht - Constructed in 3rd Quarter 1946
Danziger Bucht - Constructed in 4th Quarter 1946
Eckernförder Bucht - Constructed in 4th Quarter 1946
Neustädter Bucht - Constructed in 4th Quarter 1946
Nordrügener Bodden - Constructed in 1st Quarter 1947
Kubitzer Bodden - Constructed in 1st Quarter 1947
Schaproder Bodden - Constructed in 2nd Quarter 1947
Rügischer Bodden - Constructed in 2nd Quarter 1947
Saaler Bodden - Consttructed in 3rd Quarter 1948
Greifswalder Bodden - Constructed in 3rd Quarter 1948
Vitter Bodden - Constructed in the 4th Quarter 1948
Barther Bodden - Constructed in the 4th Quarter 1948

Oderhaff, German Fire Boat laid down 1946

Displacement: 186 t light; 190 t standard; 220 t normal; 244 t full load

Dimensions: Length overall / water x beam x draught

120.35 ft / 118.11 ft x 22.97 ft x 5.25 ft (normal load) [36.68 m / 36.00 m x 7.00 m x 1.60 m]

Machinery:

Diesel Internal combustion motors, Hydraulic drive, 1 shaft, 627 shp / 468 Kw = 14.00 kts
Range 3,500nm at 12.00 kts
Bunker at max displacement = 53 tons

Complement: 28 - 37

Cost: £0.062 million / $0.247 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %
Machinery: 16 tons, 7.1 %
Hull, fittings & equipment: 90 tons, 41.0 %
Fuel, ammunition & stores: 34 tons, 15.5 %
Miscellaneous weights: 80 tons, 36.4 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 599 lbs / 272 Kg = 5.5 x 6 " / 152 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 0.6 ft / 0.2 m
Roll period: 12.4 seconds
Steadiness - As gun platform (Average = 50 %): 73 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.87

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.541
Length to Beam Ratio: 5.14: 1
'Natural speed' for length: 10.87 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 39
Bow angle (Positive = bow angles forward): 3.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 11.48 ft / 3.50 m
- Forecastle (18 %): 10.66 ft / 3.25 m
- Mid (50 %): 9.84 ft / 3.00 m
- Quarterdeck (22 %): 9.84 ft / 3.00 m
- Stern: 9.84 ft / 3.00 m
- Average freeboard: 10.18 ft / 3.10 m
Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 63.5 %
- Above water (accommodation/working, high = better): 124.4 %
Waterplane Area: 1,817 Square feet or 169 Square metres
Displacement factor (Displacement / loading): 198 %
Structure weight / hull surface area: 27 lbs/sq ft or 131 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.83
- Longitudinal: 8.83
- Overall: 1.06
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, rides out heavy weather easily

Breakdown of miscellaneous weight:

Three water cannon stations - each 10 tons = 30 tons
Three high capacity pumps - each 10 tons = 30 tons
Provision for boarding crew of firefighters (5) = 20 tons


Oderhaff – Constructed in 1st Quarter 1946
Frische Haff - Constructed in 2nd Quarter 1946
Kurische Haff - Constructed in 3rd Quarter 1946
Königshaff - Constructed in 4th Quarter 1946
Fischteich - Constructed in the 1st Quarter 1947
Mönchteich - Constructed in the 2nd Quarter 1947
Oberteich - Constructed in the 3rd Quarter 1948
Pfaffenteich - Constructed in the 4th Quarter 1948

Traisen, German Small Support Tanker (Conversion) laid down 1944

Displacement: 1,097 t light; 1,173 t standard; 3,670 t normal; 5,666 t full load

Dimensions: Length overall / water x beam x draught

314.18 ft / 310.70 ft x 48.23 ft x 15.58 ft (normal load) [95.76 m / 94.70 m x 14.70 m x 4.75 m]

Armament:

1 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, Model 1944 Model Anti-aircraft gun in deck mount on centreline forward, 1 raised gun
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1944 Model Anti-aircraft guns in deck mounts on side, all aft, all raised mounts - superfiring
Weight of broadside 2 lbs / 1 kg
Shells per gun, main battery: 2,000

Machinery:

Diesel Internal combustion motors, Geared drive, 1 shaft, 3,173 shp / 2,367 Kw = 15.00 kts
Range 69,750nm at 12.00 kts
Bunker at max displacement = 4,493 tons

Complement: 235 - 306

Cost: £0.336 million / $1.344 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %
Machinery: 81 tons, 2.2 %
Hull, fittings & equipment: 891 tons, 24.3 %
Fuel, ammunition & stores: 2,572 tons, 70.1 %
Miscellaneous weights: 125 tons, 3.4 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 39,096 lbs / 17,734 Kg = 25,296.2 x 1.5 " / 37 mm shells or 13.3 torpedoes
Stability (Unstable if below 1.00): 1.98
Metacentric height 5.0 ft / 1.5 m
Roll period: 9.1 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 6.44: 1
'Natural speed' for length: 17.63 kts
Power going to wave formation at top speed: 40 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 16.40 ft / 5.00 m
- Forecastle (20 %): 13.94 ft / 4.25 m
- Mid (50 %): 11.48 ft / 3.50 m
- Quarterdeck (25 %): 11.48 ft / 3.50 m
- Stern: 11.48 ft / 3.50 m
- Average freeboard: 12.54 ft / 3.82 m
Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 12.9 %
- Above water (accommodation/working, high = better): 99.9 %
Waterplane Area: 10,142 Square feet or 942 Square metres
Displacement factor (Displacement / loading): 1,000 %
Structure weight / hull surface area: 58 lbs/sq ft or 283 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 1.69
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Converted from Typ 1 Small Parcel Tankers

Cargo simmed as additional bunkers; actual radius 8,000 nm at 12 knots; Cargo 3,800 tons of POL in twenty four tanks.

Breakdown of Miscellaneous Weight:

25 tons for deck gear
100 tons for additional piping and pumps

Cost to Convert: 165 tons

Time to Convert: 46 days


Traisen – Conversion commenced 1 January 1947, conversion completed 16 February 1947
Mur - Conversion commenced 1 April 1947, conversion completed 17 May 1947
Raab - Conversion commenced 1 July 1947, conversion completed 16 August 1947
Krems - Conversion commenced 1 October 1947, conversion completed 16 November 1947

Putziger Wiek, German Yard Tanker (S/P Oil Barge) laid down 1947

Displacement: 87 t light; 91 t standard; 210 t normal; 306 t full load

Dimensions: Length overall / water x beam x draught

122.19 ft / 118.11 ft x 22.97 ft x 4.92 ft (normal load) [37.24 m / 36.00 m x 7.00 m x 1.50 m]

Armament:

2 - 0.31" / 8.0 mm guns in single mounts, 0.02lbs / 0.01kg shells, 1947 Model Machine guns in deck mounts on side, all aft, all raised mounts - superfiring
Weight of broadside 0 lbs / 0 kg
Shells per gun, main battery: 4,000

Machinery:

Diesel Internal combustion motors, Geared drive, 1 shaft, 162 shp / 121 Kw = 10.00 kts
Range 45,500nm at 8.00 kts
Bunker at max displacement = 215 tons

Complement: 26 - 35

Cost: £0.026 million / $0.104 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %
Machinery: 4 tons, 1.9 %
Hull, fittings & equipment: 73 tons, 34.5 %
Fuel, ammunition & stores: 124 tons, 58.8 %
Miscellaneous weights: 10 tons, 4.8 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 2,727 lbs / 1,237 Kg = 174,586.3 x 0.3 " / 8 mm shells or 4.7 torpedoes
Stability (Unstable if below 1.00): 1.52
Metacentric height 1.1 ft / 0.3 m
Roll period: 9.1 seconds
Steadiness - As gun platform (Average = 50 %): 90 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has raised quarterdeck
Block coefficient: 0.551
Length to Beam Ratio: 5.14: 1
'Natural speed' for length: 10.87 kts
Power going to wave formation at top speed: 44 %
Trim (Max stability = 0, Max steadiness = 100): 45
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 11.48 ft / 3.50 m
- Forecastle (18 %): 9.02 ft / 2.75 m
- Mid (50 %): 6.56 ft / 2.00 m
- Quarterdeck (22 %): 12.80 ft / 3.90 m (6.56 ft / 2.00 m before break)
- Stern: 12.80 ft / 3.90 m
- Average freeboard: 8.95 ft / 2.73 m
Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 13.3 %
- Above water (accommodation/working, high = better): 97.2 %
Waterplane Area: 1,838 Square feet or 171 Square metres
Displacement factor (Displacement / loading): 1,000 %
Structure weight / hull surface area: 24 lbs/sq ft or 117 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.85
- Longitudinal: 4.97
- Overall: 1.02
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Oil stowage simmed as additional bunkers. True radius is 3,500 nm on bunkers of 10 tons. Additional bunkers represent 109 tons of fuel oil cargo.

Miscellaneous weight represents handling gear and pumps


Putziger Wiek – Constructed in 1st Quarter 1947
Pötenitzer Wiek – Constructed in 1st Quarter 1947
Dänische Wiek - Constructed in 2nd Quarter 1947
Udarser Wiek - Constructed in 2nd Quarter 1947

Kloster Arnsburg, German Water Tanker (S/P Water Barge) laid down 1947

Displacement: 85 t light; 90 t standard; 210 t normal; 306 t full load

Dimensions: Length overall / water x beam x draught

122.19 ft / 118.11 ft x 22.97 ft x 4.92 ft (normal load) [37.24 m / 36.00 m x 7.00 m x 1.50 m]

Armament:

2 - 0.31" / 8.0 mm guns in single mounts, 0.02lbs / 0.01kg shells, 1947 Model Machine guns in deck mounts on side, all aft, all raised mounts - superfiring
Weight of broadside 0 lbs / 0 kg
Shells per gun, main battery: 4,000

Machinery:

Diesel Internal combustion motors, Geared drive, 1 shaft, 162 shp / 121 Kw = 10.00 kts
Range 45,900nm at 8.00 kts
Bunker at max displacement = 217 tons

Complement: 26 - 35

Cost: £0.026 million / $0.103 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %
Machinery: 4 tons, 1.9 %
Hull, fittings & equipment: 71 tons, 34.0 %
Fuel, ammunition & stores: 125 tons, 59.3 %
Miscellaneous weights: 10 tons, 4.8 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 2,734 lbs / 1,240 Kg = 175,014.7 x 0.3 " / 8 mm shells or 4.7 torpedoes
Stability (Unstable if below 1.00): 1.53
Metacentric height 1.1 ft / 0.3 m
Roll period: 9.1 seconds
Steadiness - As gun platform (Average = 50 %): 90 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has raised quarterdeck
Block coefficient: 0.551
Length to Beam Ratio: 5.14: 1
'Natural speed' for length: 10.87 kts
Power going to wave formation at top speed: 44 %
Trim (Max stability = 0, Max steadiness = 100): 45
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 11.48 ft / 3.50 m
- Forecastle (18 %): 9.02 ft / 2.75 m
- Mid (50 %): 6.56 ft / 2.00 m
- Quarterdeck (22 %): 12.80 ft / 3.90 m (6.56 ft / 2.00 m before break)
- Stern: 12.80 ft / 3.90 m
- Average freeboard: 8.95 ft / 2.73 m
Ship tends to be wet forward

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 13.3 %
- Above water (accommodation/working, high = better): 97.2 %
Waterplane Area: 1,838 Square feet or 171 Square metres
Displacement factor (Displacement / loading): 1,000 %
Structure weight / hull surface area: 24 lbs/sq ft or 115 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.84
- Longitudinal: 4.90
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Water stowage simmed as additional bunkers. True radius is 3,500 nm on bunkers of 10 tons. Additional bunkers represent 110 tons of fresh water cargo.

Miscellaneous weight represents handling gear and pumps


Kloster Arnsburg – Constructed in 1st Quarter 1947
Kloster Aufhausen – Constructed in 1st Quarter 1947
Kloster Eberbach - Constructed in 2nd Quarter 1947
Kloster Eldena - Constructed in 2nd Quarter 1947

Eisblume, German Icebreaking Harbour/River Tug laid down 1948

Displacement: 457 t light; 467 t standard; 514 t normal; 552 t full load

Dimensions: Length overall / water x beam x draught

180.34 ft / 174.87 ft x 30.02 ft x 6.23 ft (normal load) [54.97 m / 53.30 m x 9.15 m x 1.90 m]

Armament:

2 - 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 0 lbs / 0 kg
Shells per gun, main battery: 800

Armour:

Belts: Width (max) Length (avg) Height (avg)
Main: 0.79" / 20 mm 174.54 ft / 53.20 m 9.84 ft / 3.00 m
Ends: Unarmoured
Main Belt covers 154 % of normal length

Torpedo Bulkhead: 0.79" / 20 mm 174.54 ft / 53.20 m 9.84 ft / 3.00 m

Machinery:

Diesel Internal combustion generators, Electric motors, 2 shafts, 801 shp / 597 Kw = 13.60 kts
Range 6,000nm at 10.00 kts
Bunker at max displacement = 85 tons

Complement: 53 - 70

Cost: £0.140 million / $0.560 million

Distribution of weights at normal displacement:

Armament: 0 tons, 0.0 %
Armour: 101 tons, 19.7 %
- Belts: 51 tons, 10.0 %
- Torpedo bulkhead: 50 tons, 9.7 %
- Armament: 0 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 20 tons, 3.8 %
Hull, fittings & equipment: 276 tons, 53.6 %
Fuel, ammunition & stores: 57 tons, 11.2 %
Miscellaneous weights: 60 tons, 11.7 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 4,350 lbs / 1,973 Kg = 17,822.9 x 0.8 " / 20 mm shells or 3.2 torpedoes
Stability (Unstable if below 1.00): 1.20
Metacentric height 1.2 ft / 0.4 m
Roll period: 11.7 seconds
Steadiness - As gun platform (Average = 50 %): 86 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 1.95

Hull form characteristics:

Hull has low quarterdeck
Block coefficient: 0.550
Length to Beam Ratio: 5.83: 1
'Natural speed' for length: 13.22 kts
Power going to wave formation at top speed: 48 %
Trim (Max stability = 0, Max steadiness = 100): 44
Bow angle (Positive = bow angles forward): 12.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 18.04 ft / 5.50 m
- Forecastle (15 %): 18.04 ft / 5.50 m
- Mid (25 %): 14.76 ft / 4.50 m
- Quarterdeck (60 %): 6.56 ft / 2.00 m (14.76 ft / 4.50 m before break)
- Stern: 6.56 ft / 2.00 m
- Average freeboard: 10.50 ft / 3.20 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 80.3 %
- Above water (accommodation/working, high = better): 203.0 %
Waterplane Area: 3,664 Square feet or 340 Square metres
Displacement factor (Displacement / loading): 256 %
Structure weight / hull surface area: 50 lbs/sq ft or 246 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.17
- Longitudinal: 4.44
- Overall: 1.33
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Breakdown of Miscellaneous Weight

Two auxiliary diesel-electric generating sets - 20 tons each - total 40 tons
Provision for stowed towing cables and winch aft - 10 tons
Navigation and communications equipment - 10 tons


Eisblume – Laid down 1 January 1948, Launched 9 March 1948; Completed 14 May 1948
Eisregen – Laid down 1 January 1948, Launched 9 March 1948; Completed 14 May 1948
Raueis – Laid down 1 January 1948, Launched 9 March 1948; Completed 14 May 1948
Eiszapfen - Laid down 1 July 1948, Launched 7 September 1948; Completed 12 November 1948
Eisberg - Laid down 1 July 1948, Launched 7 September 1948; Completed 12 November 1948
Meereis - Laid down 1 July 1948, Launched 7 September 1948; Completed 12 November 1948

Leine, German Support Tanker laid down 1948

Displacement: 1,980 t light; 2,059 t standard; 3,570 t normal; 4,779 t full load

Dimensions: Length overall / water x beam x draught

319.87 ft / 311.68 ft x 45.93 ft x 15.75 ft (normal load) [97.50 m / 95.00 m x 14.00 m x 4.80 m]

Armament:

1 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1948 Model Anti-aircraft gun in deck mount on centreline forward, 1 raised gun
4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1948 Model Anti-aircraft guns in deck mounts on side, all aft, all raised mounts - superfiring
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, all raised mounts
Weight of broadside 42 lbs / 19 kg
Shells per gun, main battery: 300

Armour:

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.59" / 15 mm 0.39" / 10 mm -
2nd: 0.39" / 10 mm 0.39" / 10 mm -

Machinery:

Diesel Internal combustion motors, Geared drive, 2 shafts, 6,201 shp / 4,626 Kw = 18.00 kts
Range 25,000nm at 15.00 kts
Bunker at max displacement = 2,719 tons

Complement: 230 - 300

Cost: £0.708 million / $2.832 million

Distribution of weights at normal displacement:

Armament: 5 tons, 0.1 %
Armour: 3 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 3 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 152 tons, 4.2 %
Hull, fittings & equipment: 920 tons, 25.8 %
Fuel, ammunition & stores: 1,590 tons, 44.5 %
Miscellaneous weights: 900 tons, 25.2 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 8,961 lbs / 4,065 Kg = 253.7 x 4.1 " / 105 mm shells or 2.7 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 2.0 ft / 0.6 m
Roll period: 13.6 seconds
Steadiness - As gun platform (Average = 50 %): 94 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has raised forecastle, raised quarterdeck
Block coefficient: 0.554
Length to Beam Ratio: 6.79: 1
'Natural speed' for length: 17.65 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 47
Bow angle (Positive = bow angles forward): 17.00 degrees
Stern overhang: 1.97 ft / 0.60 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 20.34 ft / 6.20 m
- Forecastle (20 %): 19.69 ft / 6.00 m (13.12 ft / 4.00 m aft of break)
- Mid (50 %): 13.12 ft / 4.00 m
- Quarterdeck (20 %): 19.69 ft / 6.00 m (13.12 ft / 4.00 m before break)
- Stern: 19.69 ft / 6.00 m
- Average freeboard: 15.80 ft / 4.82 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 43.7 %
- Above water (accommodation/working, high = better): 109.0 %
Waterplane Area: 10,031 Square feet or 932 Square metres
Displacement factor (Displacement / loading): 286 %
Structure weight / hull surface area: 57 lbs/sq ft or 276 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.91
- Longitudinal: 2.32
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

True radius of action 6,250 nm on bunkers of 386 tons (BAM 694 tons); remaining bunkers (1,100 tons) are available for transfer via UNREP

Breakdown of miscellaneous weight

Provision for navigational radar - 20 tons
Provision for fire control radar - 20 tons
Provision for communications equipment - 20 tons
Deck handling gear including jackstays for UNREP - 140 tons
Cargo for transfer - stores, packaged POL, munitions, spares - 700 tons

Constructed to mercantile standards

Cost to construct: - 495 tons (25% of 1,980 tons)
Time to construct: - 330 days


Leine – Laid down 1 January 1948; Launched 12 May 1948; Completed 26 November 1948
Löcknitz – Laid down 1 January 1948; Launched 12 May 1948; Completed 26 November 1948
Lauter - Laid down 1 July 1948; Launched 10 November 1948; Completed 27 May 1949
Lesum - Laid down 1 July 1948; Launched 10 November 1948; Completed 27 May 1949

Hagenow, German Aviation Store Issuing Ship laid down 1945

Displacement: 4,158 t light; 4,348 t standard; 8,758 t normal; 12,287 t full load

Dimensions: Length overall / water x beam x draught

385.18 ft / 377.30 ft x 55.77 ft x 24.28 ft (normal load) [117.40 m / 115.00 m x 17.00 m x 7.40 m]

Armament:

4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1945 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, 1945 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, 1945 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, 6,561 shp / 4,895 Kw = 16.00 kts
Range 75,000nm at 12.00 kts
Bunker at max displacement = 7,939 tons

Complement: 452 - 588

Cost: £1.180 million / $4.719 million

Distribution of weights at normal displacement:

Armament: 2 tons, 0.0 %
Machinery: 166 tons, 1.9 %
Hull, fittings & equipment: 1,990 tons, 22.7 %
Fuel, ammunition & stores: 4,601 tons, 52.5 %
Miscellaneous weights: 2,000 tons, 22.8 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 27,239 lbs / 12,355 Kg = 17,624.6 x 1.5 " / 37 mm shells or 5.2 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 2.7 ft / 0.8 m
Roll period: 14.2 seconds
Steadiness - As gun platform (Average = 50 %): 86 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.600
Length to Beam Ratio: 6.76: 1
'Natural speed' for length: 19.42 kts
Power going to wave formation at top speed: 40 %
Trim (Max stability = 0, Max steadiness = 100): 43
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23.29 ft / 7.10 m
- Forecastle (10 %): 20.34 ft / 6.20 m
- Mid (50 %): 17.72 ft / 5.40 m
- Quarterdeck (15 %): 17.72 ft / 5.40 m
- Stern: 23.29 ft / 7.10 m
- Average freeboard: 19.04 ft / 5.80 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 32.8 %
- Above water (accommodation/working, high = better): 116.8 %
Waterplane Area: 15,055 Square feet or 1,399 Square metres
Displacement factor (Displacement / loading): 373 %
Structure weight / hull surface area: 77 lbs/sq ft or 375 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 2.60
- Overall: 1.04
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Converted from Wuppertal class cargoliners taken up from trade

Low stowed cargo simmed as additional bunkers
Normal radius is 8,000 nm on Bunkers at max (BAM) of 510 tons
Additional bunkerage (3,900 tons) represents cargo

Breakdown of miscellaneous weight

Navigational radar - 25 tons
Air search radar - 25 tons
Communications equipment - 25 tons
Handling gear - four transfer stations, large boom forward - 425 tons
Working space for stores issue - 400 tons
Accommodation spaces for aircraft servicing crew - 400 tons
Working space for aircraft assembly - 400 tons
Ready issue aviation stores - 300 tons

Breakdown of low-stowed cargo - 3,000 tons (simmed as bunkers)

Forty crated aircraft @ 25 tons - 1,000 tons
Aviation stores and spare parts - 2,000 tons

Cost to convert - 626 tons
Time to convert - 60 days



Hagenow – conversion commenced 15 May 1948, conversion completed 14 July 1948
Hoyerswerda – conversion commenced 15 May 1948, conversion completed 14 July 1948

Schurwald, German Armament Store Issuing Ship laid down 1945

Displacement: 4,158 t light; 4,348 t standard; 8,758 t normal; 12,287 t full load

Dimensions: Length overall / water x beam x draught

385.18 ft / 377.30 ft x 55.77 ft x 24.28 ft (normal load) [117.40 m / 115.00 m x 17.00 m x 7.40 m]

Armament:

4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1945 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, 1945 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, 1945 Model Anti-aircraft guns in deck mounts on side, evenly spread, all raised mounts
Weight of broadside 20 lbs / 9 kg
Shells per gun, main battery: 900

Machinery:

Diesel Internal combustion motors, Geared drive, 1 shaft, 6,561 shp / 4,895 Kw = 16.00 kts
Range 75,000nm at 12.00 kts
Bunker at max displacement = 7,939 tons

Complement: 452 - 588

Cost: £1.180 million / $4.719 million

Distribution of weights at normal displacement:

Armament: 2 tons, 0.0 %
Machinery: 166 tons, 1.9 %
Hull, fittings & equipment: 1,990 tons, 22.7 %
Fuel, ammunition & stores: 4,601 tons, 52.5 %
Miscellaneous weights: 2,000 tons, 22.8 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 27,239 lbs / 12,355 Kg = 17,624.6 x 1.5 " / 37 mm shells or 5.2 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 2.7 ft / 0.8 m
Roll period: 14.2 seconds
Steadiness - As gun platform (Average = 50 %): 86 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.600
Length to Beam Ratio: 6.76: 1
'Natural speed' for length: 19.42 kts
Power going to wave formation at top speed: 40 %
Trim (Max stability = 0, Max steadiness = 100): 43
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23.29 ft / 7.10 m
- Forecastle (10 %): 20.34 ft / 6.20 m
- Mid (50 %): 17.72 ft / 5.40 m
- Quarterdeck (15 %): 17.72 ft / 5.40 m
- Stern: 23.29 ft / 7.10 m
- Average freeboard: 19.04 ft / 5.80 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 32.8 %
- Above water (accommodation/working, high = better): 116.8 %
Waterplane Area: 15,055 Square feet or 1,399 Square metres
Displacement factor (Displacement / loading): 373 %
Structure weight / hull surface area: 77 lbs/sq ft or 375 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 2.60
- Overall: 1.04
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Converted from Wuppertal class cargoliners taken up from trade

Low stowed cargo simmed as additional bunkers
Normal radius is 8,000 nm on Bunkers at max (BAM) of 510 tons
Additional bunkerage (3,900 tons) represents cargo

Breakdown of miscellaneous weight

Navigational radar - 25 tons
Air search radar - 25 tons
Communications equipment - 25 tons
Cargo handling gear including jackstays for UNREP - 575 tons
Provision for magazine handling and cooling - 200 tons
Provision for sprinklers and CO2 flooding - 200 tons
Working spaces for cargo transfer - 550 tons
Additional accommodation spaces - 400 tons

Low-stowed cargo (munitions) - 3,000 tons (simmed as bunkers)

Cost to convert - 624 tons
Time to convert - 60 days


Schurwald – conversion commenced 15 May 1948, conversion completed 14 July 1948
Hardtwald – conversion commenced 15 May 1948, conversion completed 14 July 1948

Merseburg, German Fleet Store Issuing Ship laid down 1945

Displacement: 4,158 t light; 4,348 t standard; 8,758 t normal; 12,287 t full load

Dimensions: Length overall / water x beam x draught

385.18 ft / 377.30 ft x 55.77 ft x 24.28 ft (normal load) [117.40 m / 115.00 m x 17.00 m x 7.40 m]

Armament:

4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1945 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, 1945 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, 6,561 shp / 4,895 Kw = 16.00 kts
Range 75,000nm at 12.00 kts
Bunker at max displacement = 7,939 tons

Complement: 452 - 588

Cost: £1.180 million / $4.719 million

Distribution of weights at normal displacement:

Armament: 2 tons, 0.0 %
Machinery: 166 tons, 1.9 %
Hull, fittings & equipment: 1,990 tons, 22.7 %
Fuel, ammunition & stores: 4,601 tons, 52.5 %
Miscellaneous weights: 2,000 tons, 22.8 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 27,239 lbs / 12,355 Kg = 17,624.6 x 1.5 " / 37 mm shells or 5.2 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 2.7 ft / 0.8 m
Roll period: 14.2 seconds
Steadiness - As gun platform (Average = 50 %): 86 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.600
Length to Beam Ratio: 6.76: 1
'Natural speed' for length: 19.42 kts
Power going to wave formation at top speed: 40 %
Trim (Max stability = 0, Max steadiness = 100): 43
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23.29 ft / 7.10 m
- Forecastle (10 %): 20.34 ft / 6.20 m
- Mid (50 %): 17.72 ft / 5.40 m
- Quarterdeck (15 %): 17.72 ft / 5.40 m
- Stern: 23.29 ft / 7.10 m
- Average freeboard: 19.04 ft / 5.80 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 32.8 %
- Above water (accommodation/working, high = better): 116.8 %
Waterplane Area: 15,055 Square feet or 1,399 Square metres
Displacement factor (Displacement / loading): 373 %
Structure weight / hull surface area: 77 lbs/sq ft or 375 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 2.60
- Overall: 1.04
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Converted from Wuppertal class cargoliners taken up from trade

Low stowed cargo simmed as additional bunkers
Normal radius is 8,000 nm on Bunkers at max (BAM) of 510 tons
Additional bunkerage (3,900 tons) represents cargo

Breakdown of miscellaneous weight

Navigational radar - 25 tons
Air search radar - 25 tons
Communications equipment - 25 tons
Cargo handling equipment including jackstays for UNREP - 575 tons
Working spaces for cargo transfer - 400 tons
Bin storage for supplies and stores - 750 tons
Additional accommodation spaces - 200 tons

Low-stowed cargo (fleet stores) - 3,000 tons (simmed as bunkers)

Cost to convert - 624 tons
Time to convert - 60 days


Merseburg – conversion begun 15 May 1948, conversion completed 14 July 1948
Marienburg – conversion begun 15 May 1948, conversion completed 14 July 1948

Jänschwalde, German Victualing Store Issuing Ship laid down 1945

Displacement: 4,158 t light; 4,348 t standard; 8,758 t normal; 12,287 t full load

Dimensions: Length overall / water x beam x draught

385.18 ft / 377.30 ft x 55.77 ft x 24.28 ft (normal load) [117.40 m / 115.00 m x 17.00 m x 7.40 m]

Armament:

4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1945 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, 1945 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 Breech loading guns in deck mounts on side, evenly spread, all raised mounts
Weight of broadside 20 lbs / 9 kg
Shells per gun, main battery: 900

Machinery:

Diesel Internal combustion motors, Geared drive, 1 shaft, 6,561 shp / 4,895 Kw = 16.00 kts
Range 75,000nm at 12.00 kts
Bunker at max displacement = 7,939 tons

Complement: 452 - 588

Cost: £1.180 million / $4.719 million

Distribution of weights at normal displacement:

Armament: 2 tons, 0.0 %
Machinery: 166 tons, 1.9 %
Hull, fittings & equipment: 1,990 tons, 22.7 %
Fuel, ammunition & stores: 4,601 tons, 52.5 %
Miscellaneous weights: 2,000 tons, 22.8 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 27,239 lbs / 12,355 Kg = 17,624.6 x 1.5 " / 37 mm shells or 5.2 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 2.7 ft / 0.8 m
Roll period: 14.2 seconds
Steadiness - As gun platform (Average = 50 %): 86 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has a flush deck
Block coefficient: 0.600
Length to Beam Ratio: 6.76: 1
'Natural speed' for length: 19.42 kts
Power going to wave formation at top speed: 40 %
Trim (Max stability = 0, Max steadiness = 100): 43
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23.29 ft / 7.10 m
- Forecastle (10 %): 20.34 ft / 6.20 m
- Mid (50 %): 17.72 ft / 5.40 m
- Quarterdeck (15 %): 17.72 ft / 5.40 m
- Stern: 23.29 ft / 7.10 m
- Average freeboard: 19.04 ft / 5.80 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 32.8 %
- Above water (accommodation/working, high = better): 116.8 %
Waterplane Area: 15,055 Square feet or 1,399 Square metres
Displacement factor (Displacement / loading): 373 %
Structure weight / hull surface area: 77 lbs/sq ft or 375 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.94
- Longitudinal: 2.60
- Overall: 1.04
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Converted from Wuppertal class cargoliners taken up from trade

Low stowed cargo simmed as additional bunkers
Normal radius is 8,000 nm on Bunkers at max (BAM) of 510 tons
Additional bunkerage (3,900 tons) represents cargo

Breakdown of miscellaneous weight

Navigational radar - 25 tons
Air search radar - 25 tons
Communications equipment - 25 tons
Cargo handling gear including jackstays for UNREP - 575 tons
Refrigeration plant - 200 tons
Working spaces for cargo transfer - 350 tons
Additional accommodation spaces - 400 tons
Provision for refrigerated deck cargo - 400 tons

Low-stowed cargo (provisions) - 3,000 tons (simmed as bunkers)

Cost to convert - 624 tons
Time to convert - 60 days


Jänschwalde – Conversion commenced 15 August 1948; Conversion completed 14 October 1948
Gerringswalde – Conversion commenced 15 August 1948; Conversion completed 14 October 1948

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.


Kamerun – Laid down 1 January 1949

Stollergrund, German Aviation 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

Breakdown of miscellaneous weight

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 - 900 tons
Handling gear for cargo transfer - 225 tons
Aircraft engine repair shops - 750 tons
Aircraft airframe repair shops - 750 tons
Aircraft instrument repair shops - 500 tons
Aircraft ordnance repair shops - 500 tons
Crated aircraft - 32 aircraft @ 25 tons - 800 tons

Low-stowed cargo spaces (3,000 tons) used for spare parts and equipment.

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.

Stollergrund – Laid down 1 January 1949
Mittelgrund – Laid down1 January 1949

Bottsand, German Salvage Tender laid down 1941

Displacement: 2,193 t light; 2,325 t standard; 5,125 t normal; 7,365 t full load

Dimensions: Length overall / water x beam x draught

278.97 ft / 265.75 ft x 43.96 ft x 23.62 ft (normal load) [85.03 m / 81.00 m x 13.40 m x 7.20 m]

Armament:

4 - 1.46" / 37.0 mm guns (2x2 guns), 1.55lbs / 0.70kg shells, 1941 Model Anti-aircraft guns in deck mounts on centreline ends, evenly spread, all raised mounts
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1941 Model Anti-aircraft guns in deck mounts on side, all amidships, all raised mounts - superfiring
Weight of broadside 8 lbs / 4 kg
Shells per gun, main battery: 5,000

Armour:

Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.59" / 15 mm 0.39" / 10 mm -

Machinery:

Oil fired boilers, complex reciprocating steam engines, Geared drive, 1 shaft, 1,798 ihp / 1,341 Kw = 12.00 kts
Range 75,000nm at 10.00 kts
Bunker at max displacement = 5,040 tons

Complement: 302 - 393

Cost: £0.565 million / $2.261 million

Distribution of weights at normal displacement:

Armament: 1 tons, 0.0 %
Armour: 1 tons, 0.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 1 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 99 tons, 1.9 %
Hull, fittings & equipment: 1,192 tons, 23.3 %
Fuel, ammunition & stores: 2,932 tons, 57.2 %
Miscellaneous weights: 900 tons, 17.6 %

Overall survivability and seakeeping ability:

Survivability (Non-critical penetrating hits needed to sink ship): 17,830 lbs / 8,088 Kg = 11,536.7 x 1.5 " / 37 mm shells or 4.8 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 1.8 ft / 0.5 m
Roll period: 13.9 seconds
Steadiness - As gun platform (Average = 50 %): 92 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:

Hull has raised forecastle
Block coefficient: 0.650
Length to Beam Ratio: 6.04: 1
'Natural speed' for length: 16.30 kts
Power going to wave formation at top speed: 38 %
Trim (Max stability = 0, Max steadiness = 100): 46
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 3.28 ft / 1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.33 ft / 6.50 m
- Forecastle (10 %): 21.33 ft / 6.50 m (14.76 ft / 4.50 m aft of break)
- Mid (30 %): 14.76 ft / 4.50 m
- Quarterdeck (30 %): 21.33 ft / 6.50 m
- Stern: 21.33 ft / 6.50 m
- Average freeboard: 18.70 ft / 5.70 m

Ship space, strength and comments:

Space - Hull below water (magazines/engines, low = better): 27.7 %
- Above water (accommodation/working, high = better): 94.3 %
Waterplane Area: 8,825 Square feet or 820 Square metres
Displacement factor (Displacement / loading): 463 %
Structure weight / hull surface area: 67 lbs/sq ft or 328 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 6.31
- Overall: 1.15
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

Converted from Waldstadt class Timber Carriers

Low-stowed cargo simmed as additional bunkers. Normal radius 7,500 nm at 10 knots, with bunkers of 303 tons. Total low-stowed cargo 2,400 tons

Breakdown of Miscellaneous weight:

Cargo handling and lifting gear - 250 tons
Accommodation for divers, repair specialists and support staff - 250 tons
Repair and machine shops - 400 tons

Low-stowed cargo (2,400 tons) includes salvage pumps, air compressors, plates, timber and other repair materials required to support salvage operations

Cost to convert: 329 tons
Time to convert: 51 days

Bottsand – Conversion begun 1 April 1949; Conversion completed 22 May 1949; Trials completed 18 June 1949