Something I'm contemplating. I though I'd see how many quad mounts I could put on 650tons...
RHN T-XX Class, Greek Torpedo Boat laid down 1929
Displacement:
666 t light; 685 t standard; 773 t normal; 843 t full load
Dimensions: Length overall / water x beam x draught
233.09 ft / 230.00 ft x 29.00 ft x 7.80 ft (normal load)
71.05 m / 70.10 m x 8.84 m x 2.38 m
Armament:
1 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1929 Model
Quick firing gun in deck mount
on centreline, 1 raised gun
6 - 1.57" / 40.0 mm guns (3x2 guns), 1.95lbs / 0.88kg shells, 1929 Model
Anti-aircraft guns in deck mounts
on centreline, evenly spread, all raised mounts
4 - 0.50" / 12.7 mm guns (2x2 guns), 0.06lbs / 0.03kg shells, 1929 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 44 lbs / 20 kg
Shells per gun, main battery: 120
12 - 21.0" / 533.4 mm above water torpedoes
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 10,810 shp / 8,064 Kw = 26.50 kts
Range 5,500nm at 12.00 kts (Bunkerage = 159 tons)
Complement:
73 - 95
Cost:
£0.298 million / $1.190 million
Distribution of weights at normal displacement:
Armament: 5 tons, 0.7 %
Machinery: 332 tons, 43.0 %
Hull, fittings & equipment: 328 tons, 42.5 %
Fuel, ammunition & stores: 107 tons, 13.8 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
566 lbs / 257 Kg = 17.7 x 4.0 " / 102 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.02
Metacentric height 0.8 ft / 0.2 m
Roll period: 13.5 seconds
Steadiness - As gun platform (Average = 50 %): 36 %
- Recoil effect (Restricted arc if above 1.00): 0.13
Seaboat quality (Average = 1.00): 1.02
Hull form characteristics:
Hull has low quarterdeck
and transom stern
Block coefficient: 0.520
Length to Beam Ratio: 7.93 : 1
'Natural speed' for length: 17.59 kts
Power going to wave formation at top speed: 72 %
Trim (Max stability = 0, Max steadiness = 100): 25
Bow angle (Positive = bow angles forward): 8.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.00 ft / 6.71 m
- Forecastle (18 %): 20.00 ft / 6.10 m
- Mid (45 %): 18.00 ft / 5.49 m
- Quarterdeck (18 %): 9.00 ft / 2.74 m (18.00 ft / 5.49 m before break)
- Stern: 9.00 ft / 2.74 m
- Average freeboard: 17.19 ft / 5.24 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 144.5 %
- Above water (accommodation/working, high = better): -54.3 %
Waterplane Area: 4,709 Square feet or 438 Square metres
Displacement factor (Displacement / loading): 109 %
Structure weight / hull surface area: 29 lbs/sq ft or 142 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.54
- Longitudinal: 9.99
- Overall: 0.72
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is extremely poor