Having gained the Atlantean 5.1" and new 2.95" guns, Turkey decided to modify the Bozcaada class destroyer design for its first purely home grown design. The design ultimately grew by 120 tons as a result of increased range and heavier AA armament.
Yar Hisar, Turkish Destroyer laid down 1943
Displacement:
1,997 t light; 2,116 t standard; 2,431 t normal; 2,684 t full load
Dimensions: Length overall / water x beam x draught
401.06 ft / 390.10 ft x 40.10 ft x 12.74 ft (normal load)
122.24 m / 118.90 m x 12.22 m x 3.88 m
Armament:
4 - 5.10" / 130 mm guns (2x2 guns), 66.33lbs / 30.08kg shells, 1943 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread
4 - 2.95" / 75.0 mm guns (2x2 guns), 12.87lbs / 5.84kg shells, 1943 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, evenly spread, all raised mounts
8 - 1.46" / 37.0 mm guns (4x2 guns), 1.55lbs / 0.70kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
8 - 0.79" / 20.0 mm guns (4x2 guns), 0.24lbs / 0.11kg shells, 1943 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 331 lbs / 150 kg
Shells per gun, main battery: 350
10 - 21.0" / 533.4 mm above water torpedoes
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.57" / 40 mm 0.98" / 25 mm 1.57" / 40 mm
2nd: 0.98" / 25 mm 0.39" / 10 mm 0.39" / 10 mm
3rd: 0.98" / 25 mm - -
- Conning tower: 1.57" / 40 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 46,945 shp / 35,021 Kw = 34.50 kts
Range 4,500nm at 18.00 kts
Bunker at max displacement = 568 tons
Complement:
173 - 225
Cost:
£1.717 million / $6.868 million
Distribution of weights at normal displacement:
Armament: 43 tons, 1.8 %
Armour: 30 tons, 1.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 24 tons, 1.0 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 6 tons, 0.3 %
Machinery: 1,118 tons, 46.0 %
Hull, fittings & equipment: 757 tons, 31.1 %
Fuel, ammunition & stores: 434 tons, 17.9 %
Miscellaneous weights: 50 tons, 2.1 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
822 lbs / 373 Kg = 12.4 x 5.1 " / 130 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.21
Metacentric height 1.8 ft / 0.5 m
Roll period: 12.6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.39
Seaboat quality (Average = 1.00): 1.01
Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.427
Length to Beam Ratio: 9.73 : 1
'Natural speed' for length: 22.80 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 70
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23.50 ft / 7.16 m
- Forecastle (20 %): 20.00 ft / 6.10 m
- Mid (40 %): 20.00 ft / 6.10 m (14.50 ft / 4.42 m aft of break)
- Quarterdeck (15 %): 14.50 ft / 4.42 m
- Stern: 14.50 ft / 4.42 m
- Average freeboard: 16.98 ft / 5.18 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 166.1 %
- Above water (accommodation/working, high = better): 101.5 %
Waterplane Area: 10,177 Square feet or 945 Square metres
Displacement factor (Displacement / loading): 85 %
Structure weight / hull surface area: 40 lbs/sq ft or 196 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.51
- Longitudinal: 1.87
- Overall: 0.58
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
10 tons for Depth charges, DC racks and DC throwers
20 tons for 10x21" torpedo reloads
9 tons for Sonar
4 tons for localized AA directors
3 tons for RDF
2 tons for NSAS radar
2 tons for gunnery computer
Tuesday, April 16th 2024, 3:40pm
Go to the top of the page
