After messing around with springsharp i decided to modify my first design. The 100 mm guns will stay, but as snip suggested there will be four twin mounts instead of 3. THe ship will be a little bit longer and additional 20 mm AA guns are installed.
What do you think?
Is the added armor realistic on a destroyer? I'm not famniliar with destroyer armour but I felt that due to the fact that mines are a mayor threat in the baltic sea, the ship needs some protection.....
Wroclaw II Class, Poland Destroyer laid down 1941
Displacement:
2.466 t light; 2.564 t standard; 2.664 t normal; 2.745 t full load
Dimensions: Length overall / water x beam x draught
386,20 ft / 377,72 ft x 40,03 ft x 15,42 ft (normal load)
117,71 m / 115,13 m x 12,20 m x 4,70 m
Armament:
8 - 3,94" / 100 mm guns (4x2 guns), 30,51lbs / 13,84kg shells, 1941 Model
Dual purpose guns in deck mounts
on centreline ends, evenly spread, 3 raised mounts - superfiring
14 - 0,79" / 20,0 mm guns (7x2 guns), 0,24lbs / 0,11kg shells, 1941 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
2 - 0,50" / 12,7 mm guns in single mounts, 0,06lbs / 0,03kg shells, 1941 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 248 lbs / 112 kg
Shells per gun, main battery: 320
8 - 20,9" / 530 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 0,39" / 10 mm 328,08 ft / 100,00 m 9,84 ft / 3,00 m
Ends: 0,39" / 10 mm 39,37 ft / 12,00 m 9,84 ft / 3,00 m
10,27 ft / 3,13 m Unarmoured ends
Upper: 0,20" / 5 mm 328,08 ft / 100,00 m 9,84 ft / 3,00 m
Main Belt covers 134% of normal length
Main belt does not fully cover magazines and engineering spaces
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0,20" / 5 mm 0,20" / 5 mm -
2nd: 0,20" / 5 mm - -
- Armour deck: 0,31" / 8 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 44.772 shp / 33.400 Kw = 33,65 kts
Range 3.000nm at 12,00 kts
Bunker at max displacement = 180 tons
Complement:
185 - 241
Cost:
£1,694 million / $6,775 million
Distribution of weights at normal displacement:
Armament: 31 tons, 1,2%
Armour: 142 tons, 5,3%
- Belts: 81 tons, 3,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 4 tons, 0,2%
- Armour Deck: 56 tons, 2,1%
- Conning Tower: 0 tons, 0,0%
Machinery: 1.155 tons, 43,3%
Hull, fittings & equipment: 1.088 tons, 40,8%
Fuel, ammunition & stores: 198 tons, 7,4%
Miscellaneous weights: 50 tons, 1,9%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1.468 lbs / 666 Kg = 48,1 x 3,9 " / 100 mm shells or 0,5 torpedoes
Stability (Unstable if below 1.00): 1,06
Metacentric height 1,4 ft / 0,4 m
Roll period: 14,1 seconds
Steadiness - As gun platform (Average = 50 %): 75 %
- Recoil effect (Restricted arc if above 1.00): 0,19
Seaboat quality (Average = 1.00): 0,97
Hull form characteristics:
Hull has raised forecastle, rise forward of midbreak
and transom stern
Block coefficient: 0,400
Length to Beam Ratio: 9,44 : 1
'Natural speed' for length: 22,59 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 77
Bow angle (Positive = bow angles forward): 20,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23,29 ft / 7,10 m
- Forecastle (15%): 20,34 ft / 6,20 m (19,69 ft / 6,00 m aft of break)
- Mid (40%): 18,04 ft / 5,50 m (13,78 ft / 4,20 m aft of break)
- Quarterdeck (12%): 13,78 ft / 4,20 m
- Stern: 13,78 ft / 4,20 m
- Average freeboard: 16,21 ft / 4,94 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 152,2%
- Above water (accommodation/working, high = better): 98,8%
Waterplane Area: 9.658 Square feet or 897 Square metres
Displacement factor (Displacement / loading): 95%
Structure weight / hull surface area: 60 lbs/sq ft or 294 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,84
- Longitudinal: 2,96
- Overall: 0,95
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
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather