WesWorld

G1 , laid down 1916, scrapped 1930
G2 , laid down 1916, scrapped 1930
G3 , laid down 1916, scrapped 1930
G4 , laid down 1916, scrapped 1930
G5 , laid down 1916, scrapped 1930
G6 , laid down 1916, sunk 1918 (mine)
G7 , laid down 1916, scrapped 1930
G8 , laid down 1916, scrapped 1931
G9 , laid down 1917, sunk 1918 (ramming)
G10 , laid down 1917, scrapped 1931
G11 , laid down 1917, scrapped 1931
G12 , laid down 1917, scrapped 1931
G13 , laid down 1917, lost 1920 (groounding)
G14 , laid down 1917, scrapped 1931
G15 , laid down 1917, scrapped 1931
G16 , laid down 1917, scrapped 1931
G17 , laid down 1917, lost 1919 (unknown)
G18 , laid down 1917, scrapped 1931

[Technical data based on historical German WW1 sub UB-48]

Length, 55.3 m x Beam, 5.8 m x Depth, 3.68 m
472 tonnes standard (632 tonnes submerged)
Diving Depth: 50 m
Main battery: 1 x 10.5-cm
5 TT (10), 50 cm
Maximum speed 13.6 knots surfaced
Maximum speed 8.0 knots submerged
Approximate cruising radius, 9000 nm / 6 knots surfaced
Approximate cruising radius, 55 nm / 4 knots submerged
Typical complement: 26-33
Oil firing
Magazines and engineering spaces are cramped, with poor watertight subdivision
Main deck guns subject to being washed down in a seaway

I1 , laid down 1917, scrapped 1938
I2 , laid down 1917, scrapped 1938
I3 , laid down 1917, scrapped 1938
I4 , laid down 1917, scrapped 1938
I5 , laid down 1917, scrapped 1938
I6 , laid down 1917, scrapped 1938
I7 , laid down 1917, scrapped 1939
I8 , laid down 1917, scrapped 1939
I9 , laid down 1918, scrapped 1939
I10 , laid down 1918, sold to Yugoslavia 1937
I11 , laid down 1918, sold to Yugoslavia 1937
I12 , laid down 1918, sold to Yugoslavia 1937
I13 , laid down 1918, sold to Yugoslavia 1937
I14 , laid down 1918, sold to Yugoslavia 1937
I15 , laid down 1918, sold to Yugoslavia 1937
I16 , laid down 1918, broken up on slip
I17 , laid down 1918, broken up on slip
I18 , laid down 1918, broken up on slip

[Technical data based on historical German WW1 sub UB-142]

Length, 55.8 m x Beam, 5.8 m x Depth, 3.75 m
482 tonnes standard (635 tonnes submerged)
Diving Depth: 75 m
Main battery: 1 x 10.5-cm
5 TT (10), 50 cm
Maximum speed 13.5 knots surfaced
Maximum speed 7.5 knots submerged
Approximate cruising radius, 7500 nm / 6 knots surfaced
Approximate cruising radius, 55 nm / 4 knots submerged
Typical complement: 26-33
Oil firing
Magazines and engineering spaces are cramped, with poor watertight subdivision
Main deck guns subject to being washed down in a seaway

H1 , laid down 1917, scrapped 1939
H2 , laid down 1917, scrapped 1939
H3 , laid down 1917, lost 21-10-35 (unknown)
H4 , laid down 1917, lost 24-07-20 (unknown)
H5 , laid down 1917, scrapped 1939
H6 , laid down 1918, sunk 07-02-35 (deapth charge)
H7 , laid down 1918, sunk 11-04-20 (collision)
H8 , laid down 1918, scrapped 1940
H9 , laid down 1918, sunk 24-08-35 (depth charge)
H10 , laid down 1918, scrapped 1940
H11 , laid down 1918, scrapped 1940
H12 , laid down 1918, scrapped 1941
H13 , laid down 1918, broken up on slip
H14 , laid down 1918, broken up on slip
H15 , laid down 1918, sunk 11-05-35 (mine?)
H16 , laid down 1918, sunk 23-01-36 (depth charge)

[Technical data based on historical German WW1 sub UC-61]

Length, 51.85 m x Beam, 5.22 m x Depth, 3.67 m
422 tonnes standard (504 tonnes submerged)
Diving Depth: 50 m
Main battery: 1 x 8.8-cm
3 TT (7), 50 cm and 18 mines
Maximum speed 11.9 knots surfaced
Maximum speed 7.2 knots submerged
Approximate cruising radius, 8000 nm / 7 knots surfaced
Approximate cruising radius, 60 nm / 4 knots submerged
Typical complement: 20-27
Oil firing
Magazines and engineering spaces are cramped, with poor watertight subdivision
Main deck guns subject to being washed down in a seaway

K1 , laid down 1925, rebuild 1942
K2 , laid down 1925, rebuild 1942
K3 , laid down 1926, rebuild 1942
K4 , laid down 1926, rebuild 1942
K5 , laid down 1926, rebuild 1942
K6 , laid down 1926, rebuild 1942
K7 , laid down 1927, rebuild 1942
K8 , laid down 1927, rebuild 1942
K9 , laid down 1927, lost 27-02-36 (unknown)
K10 , laid down 1927, rebuild 1942
K11 , laid down 1928, rebuild 1942
K12 , laid down 1928, sunk 17-11-35 (depth charge)
K13 , laid down 1929, lost 30-03-36 (unknown)
K14 , laid down 1929, rebuild 1942
K15 , laid down 1929, rebuild 1942
K16 , laid down 1929, rebuild 1943

Displacement:
460 t light; 472 t standard (450 t officially); 511 t normal; 542 t full load

Dimensions: Length overall / water x beam x draught
143,86 ft / 143,86 ft x 19,72 ft x 13,12 ft (normal load)
43,85 m / 43,85 m x 6,01 m x 4,00 m

Armament:
1 - 3,46" / 88,0 mm guns in single mounts, 20,79lbs / 9,43kg shells, 1925 Model
Breech loading gun in deck mount
on centreline forward
Weight of broadside 21 lbs / 9 kg
Shells per gun, main battery: 120
5 - 21,0" / 533 mm submerged torpedo tubes
4 bow tubes / 1 aft tube

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 1.474 shp / 1.100 Kw = 15,82 kts
Range 4.000nm at 10,00 kts (Bunkerage = 70 tons)

Complement:
53 - 69

Diving Depth:
110m operational
175m emergency
275m crush

Cost:
£0,082 million / $0,327 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0,5%
Machinery: 48 tons, 9,4%
Hull, fittings & equipment: 304 tons, 59,6%
Fuel, ammunition & stores: 51 tons, 9,9%
Miscellaneous weights: 105 tons, 20,6%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
53 lbs / 24 Kg = 2,6 x 3,5 " / 88 mm shells or 0,1 torpedoes
Stability (Unstable if below 1.00): 1,02
Metacentric height 0,5 ft / 0,1 m
Roll period: 12,3 seconds
Steadiness - As gun platform (Average = 50 %): 1 %
- Recoil effect (Restricted arc if above 1.00): 0,00
Seaboat quality (Average = 1.00): 0,00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,480
Length to Beam Ratio: 7,30 : 1
'Natural speed' for length: 11,99 kts
Power going to wave formation at top speed: 58 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 0,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 0,16 ft / 0,05 m
- Forecastle (20%): 0,16 ft / 0,05 m
- Mid (50%): 0,16 ft / 0,05 m
- Quarterdeck (15%): 0,16 ft / 0,05 m
- Stern: 0,16 ft / 0,05 m
- Average freeboard: 0,16 ft / 0,05 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 221,6%
- Above water (accommodation/working, high = better): 1,1%
Waterplane Area: 1.856 Square feet or 172 Square metres
Displacement factor (Displacement / loading): 230%
Structure weight / hull surface area: 105 lbs/sq ft or 514 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 3,72
- Longitudinal: 4,32
- Overall: 3,78
Hull space for machinery, storage, compartmentation is extremely poor
Room for accommodation and workspaces is extremely poor
Ship has quick, lively roll, not a steady gun platform
Caution: Lacks seaworthiness - very limited seakeeping ability

After Refit

Displacement:
456 t light; 468 t standard; 511 t normal; 545 t full load

Dimensions: Length overall / water x beam x draught
143,86 ft / 143,86 ft x 19,72 ft x 13,12 ft (normal load)
43,85 m / 43,85 m x 6,01 m x 4,00 m

Armament:
1 - 3,46" / 88,0 mm guns in single mounts, 20,79lbs / 9,43kg shells, 1925 Model
Breech loading gun in deck mount
on centreline forward
Weight of broadside 21 lbs / 9 kg
Shells per gun, main battery: 120
5 - 21,0" / 533 mm submerged torpedo tubes

Machinery:
Diesel Internal combustion engines plus batteries,
Electric cruising motors plus geared drives, 2 shafts, 1.650 shp / 1.231 Kw = 16,26 kts
Range 3.200nm at 12,00 kts
Bunker at max displacement = 77 tons

Complement:
53 - 69

Cost:
£0,079 million / $0,317 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0,5%
Machinery: 43 tons, 8,4%
Hull, fittings & equipment: 305 tons, 59,8%
Fuel, ammunition & stores: 54 tons, 10,7%
Miscellaneous weights: 105 tons, 20,6%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
60 lbs / 27 Kg = 2,9 x 3,5 " / 88 mm shells or 0,1 torpedoes
Stability (Unstable if below 1.00): 1,03
Metacentric height 0,5 ft / 0,1 m
Roll period: 12,2 seconds
Steadiness - As gun platform (Average = 50 %): 1 %
- Recoil effect (Restricted arc if above 1.00): 0,00
Seaboat quality (Average = 1.00): 0,00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,480
Length to Beam Ratio: 7,30 : 1
'Natural speed' for length: 11,99 kts
Power going to wave formation at top speed: 60 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 0,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 0,16 ft / 0,05 m
- Forecastle (20%): 0,16 ft / 0,05 m
- Mid (50%): 0,16 ft / 0,05 m
- Quarterdeck (15%): 0,16 ft / 0,05 m
- Stern: 0,16 ft / 0,05 m
- Average freeboard: 0,16 ft / 0,05 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 210,2%
- Above water (accommodation/working, high = better): 1,1%
Waterplane Area: 1.856 Square feet or 172 Square metres
Displacement factor (Displacement / loading): 241%
Structure weight / hull surface area: 106 lbs/sq ft or 516 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 3,72
- Longitudinal: 4,34
- Overall: 3,78
Hull space for machinery, storage, compartmentation is extremely poor
Room for accommodation and workspaces is extremely poor
Ship has quick, lively roll, not a steady gun platform
Caution: Lacks seaworthiness - very limited seakeeping ability

4 bow tubes
1 aft tube
110m operational diving depth
175m emergency diving depth
275m crush depth

N1 , laid down 1937
N2 , laid down 1937
N3 , laid down 1937
N4 , laid down 1937
N5 , laid down 1938
N6 , laid down 1938
N7 , laid down 1938
N8 , laid down 1938

Displacement:
475 t light; 488 t standard; 532 t normal; 567 t full load

Dimensions: Length overall / water x beam x draught
147,64 ft / 147,64 ft x 20,01 ft x 13,12 ft (normal load)
45,00 m / 45,00 m x 6,10 m x 4,00 m

Armament:
1 - 3,46" / 88,0 mm guns in single mounts, 20,79lbs / 9,43kg shells, 1937 Model
Breech loading gun in deck mount
on centreline forward
Weight of broadside 21 lbs / 9 kg
Shells per gun, main battery: 200
5 - 21,0" / 533 mm submerged torpedo tubes

Machinery:
Diesel Internal combustion generators,
Electric motors, 2 shafts, 3.000 shp / 2.238 Kw = 18,70 kts
Range 5.000nm at 10,00 kts
Bunker at max displacement = 79 tons

Complement:
54 - 71

Cost:
£0,166 million / $0,664 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0,5%
Machinery: 83 tons, 15,6%
Hull, fittings & equipment: 284 tons, 53,4%
Fuel, ammunition & stores: 57 tons, 10,7%
Miscellaneous weights: 105 tons, 19,7%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
40 lbs / 18 Kg = 1,9 x 3,5 " / 88 mm shells or 0,1 torpedoes
Stability (Unstable if below 1.00): 1,09
Metacentric height 0,5 ft / 0,2 m
Roll period: 11,5 seconds
Steadiness - As gun platform (Average = 50 %): 1 %
- Recoil effect (Restricted arc if above 1.00): 0,00
Seaboat quality (Average = 1.00): 0,00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,480
Length to Beam Ratio: 7,38 : 1
'Natural speed' for length: 12,15 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 37
Bow angle (Positive = bow angles forward): 0,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 0,16 ft / 0,05 m
- Forecastle (20%): 0,16 ft / 0,05 m
- Mid (50%): 0,16 ft / 0,05 m
- Quarterdeck (15%): 0,16 ft / 0,05 m
- Stern: 0,16 ft / 0,05 m
- Average freeboard: 0,16 ft / 0,05 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 265,1%
- Above water (accommodation/working, high = better): 1,1%
Waterplane Area: 1.934 Square feet or 180 Square metres
Displacement factor (Displacement / loading): 182%
Structure weight / hull surface area: 95 lbs/sq ft or 464 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 3,25
- Longitudinal: 3,68
- Overall: 3,29
Hull space for machinery, storage, compartmentation is extremely poor
Room for accommodation and workspaces is extremely poor
Ship has quick, lively roll, not a steady gun platform
Caution: Lacks seaworthiness - very limited seakeeping ability

4 bow tubes
1 aft tube
100m operational diving depth
160m emergency diving depth
250m crush depth

P1 , laid down 1940
P2 , laid down 1940
P3 , laid down 1940
P4 , laid down 1940
P5 , laid down 1941
P6 , laid down 1941
P7 , laid down 1941
P8 , laid down 1941

Displacement:
500 t light; 514 t standard; 558 t normal; 593 t full load

Dimensions: Length overall / water x beam x draught
157,48 ft / 157,48 ft x 19,69 ft x 13,12 ft (normal load)
48,00 m / 48,00 m x 6,00 m x 4,00 m

Armament:
1 - 3,46" / 88,0 mm guns in single mounts, 20,79lbs / 9,43kg shells, 1940 Model
Breech loading gun in deck mount
on centreline forward
Weight of broadside 21 lbs / 9 kg
Shells per gun, main battery: 220
4 - 21,0" / 533 mm submerged torpedo tubes

Machinery:
Diesel Internal combustion engines plus batteries,
Electric cruising motors plus geared drives, 2 shafts, 2.948 shp / 2.200 Kw = 18,71 kts
Range 5.000nm at 10,00 kts
Bunker at max displacement = 79 tons

Complement:
56 - 74

Cost:
£0,184 million / $0,738 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0,5%
Machinery: 79 tons, 14,1%
Hull, fittings & equipment: 309 tons, 55,4%
Fuel, ammunition & stores: 57 tons, 10,3%
Miscellaneous weights: 110 tons, 19,7%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
116 lbs / 53 Kg = 5,6 x 3,5 " / 88 mm shells or 0,2 torpedoes
Stability (Unstable if below 1.00): 1,01
Metacentric height 0,4 ft / 0,1 m
Roll period: 12,4 seconds
Steadiness - As gun platform (Average = 50 %): 1 %
- Recoil effect (Restricted arc if above 1.00): 0,00
Seaboat quality (Average = 1.00): 0,00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,480
Length to Beam Ratio: 8,00 : 1
'Natural speed' for length: 12,55 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 0,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 0,16 ft / 0,05 m
- Forecastle (20%): 0,16 ft / 0,05 m
- Mid (50%): 0,16 ft / 0,05 m
- Quarterdeck (15%): 0,16 ft / 0,05 m
- Stern: 0,16 ft / 0,05 m
- Average freeboard: 0,16 ft / 0,05 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 156,7%
- Above water (accommodation/working, high = better): 1,1%
Waterplane Area: 2.029 Square feet or 188 Square metres
Displacement factor (Displacement / loading): 193%
Structure weight / hull surface area: 98 lbs/sq ft or 477 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 3,38
- Longitudinal: 3,35
- Overall: 3,36
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is extremely poor
Ship has quick, lively roll, not a steady gun platform
Caution: Lacks seaworthiness - very limited seakeeping ability

4 bow tubes
24 mines
100m operational diving depth
160m emergency diving depth
250m crush depth

R1, laid down 1942
R2, laid down 1942
R3, laid down 1942
R4, laid down 1942
R5, laid down 1942
R6, laid down 1942
R7, laid down 1942
R8, laid down 1942

Displacement:
479 t light; 493 t standard; 535 t normal; 568 t full load

Dimensions: Length overall / water x beam x draught
157,52 ft / 157,48 ft x 19,69 ft x 13,12 ft (normal load)
48,01 m / 48,00 m x 6,00 m x 4,00 m

Armament:
1 - 3,46" / 88,0 mm guns in single mounts, 20,79lbs / 9,43kg shells, 1942 Model
Breech loading gun in deck mount
on centreline forward
1 - 0,79" / 20,0 mm guns in single mounts, 0,24lbs / 0,11kg shells, 1942 Model
Machine gun in deck mount
on centreline amidships, 1 raised gun
Weight of broadside 21 lbs / 10 kg
Shells per gun, main battery: 250
4 - 21,0" / 533 mm submerged torpedo tubes

Machinery:
Diesel Internal combustion engines plus batteries,
Electric cruising motors plus geared drives, 2 shafts, 3.000 shp / 2.238 Kw = 18,94 kts
Range 5.000nm at 10,00 kts
Bunker at max displacement = 76 tons

Complement:
55 - 72

Cost:
£0,191 million / $0,762 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0,5%
Machinery: 78 tons, 14,7%
Hull, fittings & equipment: 298 tons, 55,7%
Fuel, ammunition & stores: 56 tons, 10,4%
Miscellaneous weights: 100 tons, 18,7%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
109 lbs / 50 Kg = 5,3 x 3,5 " / 88 mm shells or 0,2 torpedoes
Stability (Unstable if below 1.00): 1,02
Metacentric height 0,5 ft / 0,1 m
Roll period: 12,2 seconds
Steadiness - As gun platform (Average = 50 %): 1 %
- Recoil effect (Restricted arc if above 1.00): 0,00
Seaboat quality (Average = 1.00): 0,00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0,460
Length to Beam Ratio: 8,00 : 1
'Natural speed' for length: 12,55 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 15,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 0,16 ft / 0,05 m
- Forecastle (20%): 0,16 ft / 0,05 m
- Mid (50%): 0,16 ft / 0,05 m
- Quarterdeck (15%): 0,16 ft / 0,05 m
- Stern: 0,16 ft / 0,05 m
- Average freeboard: 0,16 ft / 0,05 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 158,7%
- Above water (accommodation/working, high = better): 1,1%
Waterplane Area: 1.994 Square feet or 185 Square metres
Displacement factor (Displacement / loading): 192%
Structure weight / hull surface area: 96 lbs/sq ft or 467 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 3,30
- Longitudinal: 3,37
- Overall: 3,30
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is extremely poor
Ship has quick, lively roll, not a steady gun platform
Caution: Lacks seaworthiness - very limited seakeeping ability

4 bow tubes
100m operational diving depth
160m emergency diving depth
250m crush depth