Guìyú-Class
Oceangoing Submarine
Displacement:
2,004 t light; 2,061 t standard; 2,403 t normal; 2,677 t full load
Dimensions:
Length overall / water x beam x draught
295.28 ft / 295.28 ft x 29.53 ft x 19.69 ft (normal load)
90.00 m / 90.00 m x 9.00 m x 6.00 m
Armament:
2 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1942 Model
Quick firing guns in deck mounts
on centreline, all amidships
2 - 1.77" / 45.0 mm guns in single mounts, 2.78lbs / 1.26kg shells, 1942 Model
Breech loading guns in deck mounts
on centreline, all amidships, all raised mounts - superfiring
Weight of broadside 76 lbs / 35 kg
Shells per gun, main battery: 200
2 - 19.7" / 500 mm above water torpedoes, 8 - 19.7" / 500 mm submerged torpedo tubes
Machinery:
Diesel Internal combustion engines plus batteries,
Electric cruising motors plus geared drives, 2 shafts, 9,749 shp / 7,273 Kw = 21.64 kts
Range 14,000nm at 11.00 kts
Bunker at max displacement = 616 tons
Complement:
171 - 223
Cost:
£0.724 million / $2.896 million
Distribution of weights at normal displacement:
Armament: 10 tons, 0.4 %
Machinery: 255 tons, 10.6 %
Hull, fittings & equipment: 1,288 tons, 53.6 %
Fuel, ammunition & stores: 399 tons, 16.6 %
Miscellaneous weights: 451 tons, 18.8 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,338 lbs / 607 Kg = 37.9 x 4.1 " / 105 mm shells or 0.7 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 0.9 ft / 0.3 m
Roll period: 13.1 seconds
Steadiness - As gun platform (Average = 50 %): 0 %
- 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: 0.490
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 17.18 kts
Power going to wave formation at top speed: 53 %
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: 0.00 ft / 0.00 m
- Forecastle (20 %): 0.00 ft / 0.00 m
- Mid (50 %): 0.00 ft / 0.00 m
- Quarterdeck (15 %): 0.00 ft / 0.00 m
- Stern: 0.00 ft / 0.00 m
- Average freeboard: 0.00 ft / 0.00 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 92.4 %
- Above water (accommodation/working, high = better): 0.0 %
Waterplane Area: 5,757 Square feet or 535 Square metres
Displacement factor (Displacement / loading): 232 %
Structure weight / hull surface area: 145 lbs/sq ft or 708 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 3.41
- Longitudinal: 2.02
- Overall: 2.30
Hull space for machinery, storage, compartmentation is adequate
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
Info:
401 tons for ballast
50 tons for torpedoes and mines
only for chinese use; not official
operational diving depth = 230 feet or 70m
emergency diving depth = 368 feet or 112m
crush depth = 575 feet or 175m
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Ships in Class:
U-115 laid down 1942
U-116 laid down 1942
U-117 laid down 1942
U-118 laid down 1946
U-119 laid down 1946
U-120 laid down 1946