WesWorld

And here's a larger sub for Peru, to replace their antiques.

Type P, German Submarine laid down 1931

Displacement:
973 t light; 998 t standard; 1,081 t normal; 1,147 t full load

Dimensions: Length overall / water x beam x draught
228.02 ft / 226.38 ft x 24.61 ft x 14.76 ft (normal load)
69.50 m / 69.00 m x 7.50 m x 4.50 m

Armament:
1 - 4.13" / 105 mm guns in single mounts, 35.32lbs / 16.02kg shells, 1931 Model
Quick firing gun in deck mount
on centreline aft
1 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1931 Model
Anti-aircraft gun in deck mount
on centreline forward
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1931 Model
Breech loading guns in deck mounts
on centreline, all amidships
Weight of broadside 37 lbs / 17 kg
Shells per gun, main battery: 150
6 - 21.0" / 533.4 mm submerged torpedo tubes

Armour:

- Conning tower: 0.79" / 20 mm

Machinery:
Diesel Internal combustion generators plus batteries,
Electric motors, 2 shafts, 2,009 shp / 1,498 Kw = 16.00 kts
Range 6,000nm at 10.00 kts
Bunker at max displacement = 150 tons

Complement:
93 - 122

Cost:
£0.202 million / $0.810 million

Distribution of weights at normal displacement:
Armament: 5 tons, 0.4 %
Armour: 2 tons, 0.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 0 tons, 0.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 2 tons, 0.2 %
Machinery: 60 tons, 5.6 %
Hull, fittings & equipment: 686 tons, 63.5 %
Fuel, ammunition & stores: 108 tons, 10.0 %
Miscellaneous weights: 220 tons, 20.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
697 lbs / 316 Kg = 19.7 x 4.1 " / 105 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 0.7 ft / 0.2 m
Roll period: 12.0 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: 0.460
Length to Beam Ratio: 9.20 : 1
'Natural speed' for length: 15.05 kts
Power going to wave formation at top speed: 43 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 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): 81.8 %
- Above water (accommodation/working, high = better): 0.0 %
Waterplane Area: 3,583 Square feet or 333 Square metres
Displacement factor (Displacement / loading): 285 %
Structure weight / hull surface area: 130 lbs/sq ft or 635 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 3.95
- Longitudinal: 2.29
- Overall: 2.62
Hull space for machinery, storage, compartmentation is excellent
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 tubes are forward, 2 aft. 8 reload torpedoes forward, 2 aft.

20 tons of the miscellaneous tonnage are for 10 reload torpedoes.