Project 1942 Kappa, Yugoslav Destroyer Leader laid down 1942
Displacement: 2,586 t light; 2,753 t standard; 3,280 t normal; 3,702 t full load
Dimensions: Length overall / water x beam x draught
483.34 ft / 465.88 ft x 44.29 ft x 13.91 ft (normal load) [147.32 m / 142.00 m x 13.50 m x 4.24 m]
Armament:
8 - 4.72" / 120 mm guns (4x2 guns), 52.72lbs / 23.92kg shells, 1936 Model Dual purpose guns in deck mounts with hoists on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.89kg shells, 1936 Model Anti-aircraft guns in deck mounts on side, all amidships, all raised mounts - superfiring
16 - 0.79" / 20.0 mm guns (4x4 guns), 0.24lbs / 0.11kg shells, 1945 Model Anti-aircraft guns in deck mounts on side, evenly spread
Weight of broadside 441 lbs / 200 kg
Shells per gun, main battery: 400
10 - 21.7" / 550 mm above water torpedoes
Armour:
Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.59" / 15 mm 0.39" / 10 mm
2nd: 0.59" / 15 mm 0.39" / 10 mm -
3rd: 0.39" / 10 mm - -
Conning tower: 1.97" / 50 mm
Machinery:
Oil fired boilers, steam turbines, Geared drive, 2 shafts, 48,216 shp / 35,969 Kw = 34.00 kts
Range 9,500nm at 15.00 kts
Bunker at max displacement = 949 tons
Complement: 216 - 281
Cost: £1.993 million / $7.972 million
Distribution of weights at normal displacement:
Armament: 55 tons, 1.7 %
Armour: 32 tons, 1.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 22 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 9 tons, 0.3 %
Machinery: 1,260 tons, 38.4 %
Hull, fittings & equipment: 1,159 tons, 35.3 %
Fuel, ammunition & stores: 694 tons, 21.2 %
Miscellaneous weights: 80 tons, 2.4 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship): 1,739 lbs / 789 Kg = 33.0 x 4.7 " / 120 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.20
Metacentric height 2.1 ft / 0.6 m
Roll period: 13.0 seconds
Steadiness - As gun platform (Average = 50 %): 82 %
- Recoil effect (Restricted arc if above 1.00): 0.41
Seaboat quality (Average = 1.00): 1.21
Hull form characteristics:
Hull has rise forward of midbreak and transom stern
Block coefficient: 0.400
Length to Beam Ratio: 10.52 : 1
'Natural speed' for length: 24.86 kts
Power going to wave formation at top speed: 60 %
Trim (Max stability = 0, Max steadiness = 100): 68
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 27.40 ft / 8.35 m
- Forecastle (20 %): 20.83 ft / 6.35 m
- Mid (40 %): 20.83 ft / 6.35 m (13.94 ft / 4.25 m aft of break)
- Quarterdeck (15 %): 13.94 ft / 4.25 m
- Stern: 13.94 ft / 4.25 m
- Average freeboard: 17.22 ft / 5.25 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 142.0 %
- Above water (accommodation/working, high = better): 120.4 %
Waterplane Area: 13,181 Square feet or 1,225 Square metres
Displacement factor (Displacement / loading): 107 %
Structure weight / hull surface area: 51 lbs/sq ft or 248 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.63
- Longitudinal: 1.48
- Overall: 0.69
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
Breakdown of Miscellaneous Weight
Updated Sensor Suite:
DRBV-9 surface and search radar (7.5 tons)
DRBI-3 sentry radar (7.5 tons)
DRBN-1 navigational surface and air search radar (2 tons)
DRBC-3B fire control radar (8 tons)
ARBR-1 radar jammer/detector (2 tons)
SAGEM HF/DF (3 tons)
Diesel-electric generator set for additional power (5 tons)
Gunnery computer for 120mm and 40mm guns (2 tons)
53 tons reserved for future growth
Level 1 Refit (2.5%)
Total cost: 65 tons
Time to refit: 9 days