Would this submarine suit Brazil? It's a modified Type P from Germany but with a wider hull, new diesels and slightly longer and much more range.
It's expensive but fits on a Type 0 nicely. Argentina is likely to build one next year as a trials type.
Project 704, Argentina Submarine laid down 1938
Displacement:
1,328 t light; 1,361 t standard; 1,476 t normal; 1,568 t full load
Dimensions: Length overall / water x beam x draught
229.66 ft / 229.66 ft x 26.25 ft x 15.58 ft (normal load)
70.00 m / 70.00 m x 8.00 m x 4.75 m
Armament:
1 - 3.94" / 100 mm guns in single mounts, 30.00lbs / 13.61kg shells, 1933 Model
Quick firing gun in deck mount
on centreline forward
2 - 1.46" / 37.0 mm guns (1x2 guns), 1.55lbs / 0.70kg shells, 1936 Model
Anti-aircraft guns in deck mount
on centreline aft
1 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1932 Model
Anti-aircraft gun in deck mount
on centreline amidships, 1 raised gun
Weight of broadside 33 lbs / 15 kg
Shells per gun, main battery: 150
6 - 21.0" / 533.4 mm submerged torpedo tubes
Machinery:
Diesel Internal combustion generators plus batteries,
Electric motors, 2 shafts, 2,500 shp / 1,865 Kw = 16.05 kts
Range 7,500nm at 10.00 kts
Bunker at max displacement = 207 tons
Complement:
118 - 154
Cost:
£0.336 million / $1.345 million
Distribution of weights at normal displacement:
Armament: 4 tons, 0.3 %
Machinery: 68 tons, 4.6 %
Hull, fittings & equipment: 1,006 tons, 68.1 %
Fuel, ammunition & stores: 148 tons, 10.0 %
Miscellaneous weights: 250 tons, 16.9 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,285 lbs / 583 Kg = 42.1 x 3.9 " / 100 mm shells or 0.9 torpedoes
Stability (Unstable if below 1.00): 1.23
Metacentric height 1.0 ft / 0.3 m
Roll period: 11.1 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: 0.550
Length to Beam Ratio: 8.75 : 1
'Natural speed' for length: 15.15 kts
Power going to wave formation at top speed: 47 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 10.00 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): 63.8 %
- Above water (accommodation/working, high = better): 0.0 %
Waterplane Area: 4,207 Square feet or 391 Square metres
Displacement factor (Displacement / loading): 351 %
Structure weight / hull surface area: 166 lbs/sq ft or 808 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 4.78
- Longitudinal: 2.66
- Overall: 3.08
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
Torpedo Tubes: 4 forward, 2 aft. 8 reload torpedoes forward, 2 aft
Operational diving depth: 308 feet
Emergency diving depth: 492 feet
Crush depth: 770 feet