WesWorld

Quoted

A-1, Siamese Minisub laid down 1936

Displacement:
125 t light; 128 t standard; 137 t normal; 144 t full load

Dimensions: Length overall / water x beam x draught
82.02 ft / 82.02 ft x 13.12 ft x 10.50 ft (normal load)
25.00 m / 25.00 m x 4.00 m x 3.20 m
2 - 19.7" / 500 mm above water torpedoes, 2 - 19.7" / 500 mm submerged torpedo tubes

Machinery:
Diesel Internal combustion generators,
Electric motors, 1 shaft, 150 shp / 112 Kw = 10.32 kts
Range 1,800nm at 10.32 kts
Bunker at max displacement = 16 tons

Complement:
9 - 13

Cost:
£0.026 million / $0.105 million

Distribution of weights at normal displacement:
Armament: 0 tons, 0.0 %
Machinery: 4 tons, 3.1 %
Hull, fittings & equipment: 94 tons, 68.6 %
Fuel, ammunition & stores: 12 tons, 8.6 %
Miscellaneous weights: 27 tons, 19.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
46 lbs / 21 Kg = 0.4 x 6 " / 152 mm shells or 0.1 torpedoes
Stability (Unstable if below 1.00): 1.00
Metacentric height 0.2 ft / 0.1 m
Roll period: 11.3 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: 0.424
Length to Beam Ratio: 6.25 : 1
'Natural speed' for length: 9.06 kts
Power going to wave formation at top speed: 49 %
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): 122.7 %
- Above water (accommodation/working, high = better): 0.0 %
Waterplane Area: 639 Square feet or 59 Square metres
Displacement factor (Displacement / loading): 387 %
Structure weight / hull surface area: 82 lbs/sq ft or 401 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 4.16
- Longitudinal: 9.55
- Overall: 4.52
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is extremely poor

Quoted

Originally posted by Brockpaine
Hey, that doesn't look half bad... Decent dive depth, size, etc...

I would be shocked if you got an 8-man crew to reload torpedoes, though...

Quoted

Originally posted by Desertfox
Me gusta! Mexico wonders if perhaps Siam wishes to exchange the plans for those, for the plans of the nice Mexican TBs.