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1

Sunday, April 9th 2006, 1:53pm

Destroyer concept 1931




Project one, PRJ Destroyer laid down 1931

Displacement:
2 044 t light; 2 159 t standard; 2 325 t normal; 2 457 t full load

Dimensions: Length overall / water x beam x draught
411,27 ft / 393,70 ft x 39,37 ft x 13,12 ft (normal load)
125,36 m / 120,00 m x 12,00 m x 4,00 m

Armament:
8 - 4,33" / 110 mm guns (4x2 guns), 40,61lbs / 18,42kg shells, 1931 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 1,57" / 40,0 mm guns (2x4 guns), 1,95lbs / 0,89kg shells, 1931 Model
Breech loading guns in deck mounts
on side, all amidships, all raised mounts - superfiring
Weight of broadside 341 lbs / 154 kg
Shells per gun, main battery: 350
12 - 23,6" / 600 mm above water torpedoes

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 56 673 shp / 42 278 Kw = 35,00 kts
Range 5 000nm at 12,00 kts
Bunker at max displacement = 299 tons

Complement:
166 - 217

Cost:
£1,269 million / $5,075 million

Distribution of weights at normal displacement:
Armament: 43 tons, 1,8%
Machinery: 1 310 tons, 56,4%
Hull, fittings & equipment: 661 tons, 28,4%
Fuel, ammunition & stores: 281 tons, 12,1%
Miscellaneous weights: 30 tons, 1,3%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
553 lbs / 251 Kg = 13,6 x 4,3 " / 110 mm shells or 0,3 torpedoes
Stability (Unstable if below 1.00): 1,47
Metacentric height 2,4 ft / 0,7 m
Roll period: 10,7 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0,16
Seaboat quality (Average = 1.00): 1,03

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,400
Length to Beam Ratio: 10,00 : 1
'Natural speed' for length: 19,84 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 35,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25,10 ft / 7,65 m
- Forecastle (20%): 20,34 ft / 6,20 m
- Mid (37%): 20,34 ft / 6,20 m (13,12 ft / 4,00 m aft of break)
- Quarterdeck (15%): 13,12 ft / 4,00 m
- Stern: 13,12 ft / 4,00 m
- Average freeboard: 16,17 ft / 4,93 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 199,0%
- Above water (accommodation/working, high = better): 53,4%
Waterplane Area: 9 541 Square feet or 886 Square metres
Displacement factor (Displacement / loading): 62%
Structure weight / hull surface area: 37 lbs/sq ft or 180 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,50
- Longitudinal: 1,69
- Overall: 0,56
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped


Destroyer leader
TT are centerline in 3 quads


2

Sunday, April 9th 2006, 1:56pm

Three triples won't hold 12 torpedoes, I think you mean three quads. Given the 110mm gun, I expect this ship is destined for Poland?

3

Sunday, April 9th 2006, 2:31pm

Bild by poland but intended for Yugoslavia.
Yugoslavia want a modern ship all of there ships remember the great war.The Use of 110mm is becose Yugoslavia want a heavy Dual porpose armament one finished this ship will be the most powerfull destroyer in PRJ apart from Romania vr.30
but its faster and has more TT

Yeah I ment quads
this ship is influenced by Japans desing style of putting as much weapons in every place posible.

I belive that a bigger more powerfull weasle in of simmilar construction will be bild for poland And will be named Blyskawica.