WesWorld

Zastawa, Yugoslavia destroyer Light laid down 1930 (Engine 1940)

Displacement:
883 t light; 917 t standard; 954 t normal; 983 t full load

Dimensions: Length overall / water x beam x draught
323,77 ft / 318,24 ft x 28,54 ft x 9,19 ft (normal load)
98,68 m / 97,00 m x 8,70 m x 2,80 m

Armament:
4 - 3,94" / 100 mm guns in single mounts, 30,51lbs / 13,84kg shells, 1930 Model
Breech loading guns in deck mounts
on centreline, evenly spread, 2 raised mounts
Aft Main mounts separated by engine room
4 - 1,57" / 40,0 mm guns (2x2 guns), 1,95lbs / 0,88kg shells, 1930 Model
Breech loading guns in deck mounts
on side, all amidships, all raised mounts - superfiring
4 - 0,79" / 20,0 mm guns in single mounts, 0,24lbs / 0,11kg shells, 1930 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 131 lbs / 59 kg
Shells per gun, main battery: 200
3 - 21,0" / 533 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0,39" / 10 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 31 628 shp / 23 595 Kw = 35,50 kts
Range 2 000nm at 12,00 kts
Bunker at max displacement = 66 tons

Complement:
85 - 111

Cost:
£0,476 million / $1,902 million

Distribution of weights at normal displacement:
Armament: 16 tons, 1,7%
Armour: 3 tons, 0,3%
- Belts: 0 tons, 0,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 3 tons, 0,3%
- Armour Deck: 0 tons, 0,0%
- Conning Tower: 0 tons, 0,0%
Machinery: 493 tons, 51,7%
Hull, fittings & equipment: 340 tons, 35,6%
Fuel, ammunition & stores: 71 tons, 7,4%
Miscellaneous weights: 30 tons, 3,1%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
287 lbs / 130 Kg = 9,4 x 3,9 " / 100 mm shells or 0,2 torpedoes
Stability (Unstable if below 1.00): 1,22
Metacentric height 1,1 ft / 0,3 m
Roll period: 11,4 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0,21
Seaboat quality (Average = 1.00): 0,79

Hull form characteristics:
Hull has raised forecastle, rise forward of midbreak, low quarterdeck
and transom stern
Block coefficient: 0,400
Length to Beam Ratio: 11,15 : 1
'Natural speed' for length: 20,45 kts
Power going to wave formation at top speed: 70 %
Trim (Max stability = 0, Max steadiness = 100): 65
Bow angle (Positive = bow angles forward): 13,90 degrees
Stern overhang: 0,66 ft / 0,20 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19,69 ft / 6,00 m
- Forecastle (15%): 16,40 ft / 5,00 m (15,75 ft / 4,80 m aft of break)
- Mid (37%): 16,08 ft / 4,90 m (10,17 ft / 3,10 m aft of break)
- Quarterdeck (15%): 10,17 ft / 3,10 m (10,60 ft / 3,23 m before break)
- Stern: 10,50 ft / 3,20 m
- Average freeboard: 12,69 ft / 3,87 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 184,0%
- Above water (accommodation/working, high = better): 121,8%
Waterplane Area: 5 803 Square feet or 539 Square metres
Displacement factor (Displacement / loading): 51%
Structure weight / hull surface area: 30 lbs/sq ft or 147 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,52
- Longitudinal: 1,95
- Overall: 0,59
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather



I used a 1940 engine date to simulate Overloaded Engines

Are her main guns aft intentionally seperated by engine spaced?

Not sure if using 1940er engines to simulate overload is a good idea. I tend to use standard machinery as planned for the ship under normal conditions and then increase power output by 10% or whatever overload will mean. This procedure creates a hull strength below 0,5 but might give a better idea of what can be achieved by overloading your turbines...

she needs 20-30 tons miscellaneous weight, for her anti-submarine weapons and other gear destroyers need.