A cheap multi-role torpedo boat. Has a secondary role as a minelayer.
Type 1, Yugoslavia Torpedo Boat laid down 1937
Displacement:
600 t light; 625 t standard; 657 t normal; 683 t full load
Dimensions: Length overall / water x beam x draught
300.00 ft / 300.00 ft x 27.00 ft x 7.10 ft (normal load)
91.44 m / 91.44 m x 8.23 m x 2.16 m
Armament:
3 - 4.33" / 110 mm guns in single mounts, 40.59lbs / 18.41kg shells, 1937 Model
Breech loading guns in deck mounts
on centreline ends, majority aft, 1 raised mount aft
4 - 1.85" / 47.0 mm guns (2x2 guns), 3.17lbs / 1.44kg shells, 1937 Model
Dual purpose guns in deck mounts
on side, all amidships
Weight of broadside 134 lbs / 61 kg
Shells per gun, main battery: 150
6 - 23.6" / 599.44 mm above water torpedoes
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 16,746 shp / 12,493 Kw = 32.00 kts
Range 1,350nm at 15.00 kts
Bunker at max displacement = 58 tons
Complement:
64 - 84
Cost:
£0.416 million / $1.664 million
Distribution of weights at normal displacement:
Armament: 17 tons, 2.6 %
Machinery: 294 tons, 44.7 %
Hull, fittings & equipment: 239 tons, 36.4 %
Fuel, ammunition & stores: 57 tons, 8.7 %
Miscellaneous weights: 50 tons, 7.6 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
240 lbs / 109 Kg = 5.9 x 4.3 " / 110 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.22
Metacentric height 1.0 ft / 0.3 m
Roll period: 11.3 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.24
Seaboat quality (Average = 1.00): 0.93
Hull form characteristics:
Hull has raised forecastle
and transom stern
Block coefficient: 0.400
Length to Beam Ratio: 11.11 : 1
'Natural speed' for length: 19.86 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 54
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: 15.00 ft / 4.57 m
- Forecastle (30 %): 13.00 ft / 3.96 m (11.00 ft / 3.35 m aft of break)
- Mid (50 %): 11.00 ft / 3.35 m
- Quarterdeck (15 %): 11.00 ft / 3.35 m
- Stern: 11.00 ft / 3.35 m
- Average freeboard: 11.84 ft / 3.61 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 172.2 %
- Above water (accommodation/working, high = better): 60.2 %
Waterplane Area: 5,174 Square feet or 481 Square metres
Displacement factor (Displacement / loading): 59 %
Structure weight / hull surface area: 25 lbs/sq ft or 122 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.75
- Overall: 0.56
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather