Navy Seal 
Join Date: Apr 2002
Location: Rochester, New York
Posts: 8,633
Downloads: 29
Uploads: 6
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I’ve suggested the mods start a design competition in the Comments to Subsim board. If none are interested I’ll start one along with anyone else interested in helping with the judging (or it could be a community vote based system if that doesn’t work out).
I've been able to make a few somewhat succesful DDs and Escorts, Here is an example:
Quote:
Type 2 Class Destroyer, USA Destroyer Escort laid down 1939
Displacement:
2,686 t light; 2,749 t standard; 2,999 t normal; 3,199 t full load
Dimensions: Length overall / water x beam x draught
284.09 ft / 280.00 ft x 40.00 ft (Bulges 55.00 ft) x 24.00 ft (normal load)
86.59 m / 85.34 m x 12.19 m (Bulges 16.76 m) x 7.32 m
Armament:
1 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1939 Model
Dual purpose gun in a turret (on a barbette)
on centreline forward
4 - 1.57" / 40.0 mm guns in single mounts, 1.95lbs / 0.88kg shells, 1939 Model
Anti-aircraft guns in deck mounts with hoists
on side, evenly spread
6 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1939 Model
Anti-aircraft guns in deck mounts with hoists
on side, evenly spread
Weight of broadside 23 lbs / 10 kg
Shells per gun, main battery: 150
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.00" / 51 mm 159.60 ft / 48.65 m 8.49 ft / 2.59 m
Ends: 1.00" / 25 mm 120.38 ft / 36.69 m 8.49 ft / 2.59 m
Main Belt covers 88 % of normal length
Main belt does not fully cover magazines and engineering spaces
- Torpedo Bulkhead and Bulges:
3.00" / 76 mm 159.60 ft / 48.65 m 3.74 ft / 1.14 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm - 2.00" / 51 mm
- Armour deck: 2.00" / 51 mm, Conning tower: 3.00" / 76 mm
Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 27,657 shp / 20,632 Kw = 29.00 kts
Range 3,000nm at 18.00 kts
Bunker at max displacement = 450 tons
Complement:
202 - 263
Cost:
£1.171 million / $4.682 million
Distribution of weights at normal displacement:
Armament: 3 tons, 0.1 %
Armour: 537 tons, 17.9 %
- Belts: 155 tons, 5.2 %
- Torpedo bulkhead: 66 tons, 2.2 %
- Armament: 7 tons, 0.2 %
- Armour Deck: 295 tons, 9.8 %
- Conning Tower: 13 tons, 0.4 %
Machinery: 748 tons, 25.0 %
Hull, fittings & equipment: 1,099 tons, 36.6 %
Fuel, ammunition & stores: 313 tons, 10.4 %
Miscellaneous weights: 300 tons, 10.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3,632 lbs / 1,647 Kg = 269.0 x 3.0 " / 76 mm shells or 1.2 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 1.5 ft / 0.4 m
Roll period: 19.1 seconds
Steadiness - As gun platform (Average = 50 %): 80 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.45
Hull form characteristics:
Hull has raised forecastle, rise forward of midbreak, raised quarterdeck
and transom stern
Block coefficient: 0.284
Length to Beam Ratio: 5.09 : 1
'Natural speed' for length: 21.36 kts
Power going to wave formation at top speed: 69 %
Trim (Max stability = 0, Max steadiness = 100): 55
Bow angle (Positive = bow angles forward): 8.00 degrees
Stern overhang: 1.00 ft / 0.30 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22.00 ft / 6.71 m
- Forecastle (25 %): 22.00 ft / 6.71 m (20.00 ft / 6.10 m aft of break)
- Mid (50 %): 20.00 ft / 6.10 m (16.00 ft / 4.88 m aft of break)
- Quarterdeck (18 %): 19.00 ft / 5.79 m (16.00 ft / 4.88 m before break)
- Stern: 19.00 ft / 5.79 m
- Average freeboard: 19.04 ft / 5.80 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 186.3 %
- Above water (accommodation/working, high = better): 133.5 %
Waterplane Area: 7,974 Square feet or 741 Square metres
Displacement factor (Displacement / loading): 127 %
Structure weight / hull surface area: 63 lbs/sq ft or 308 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.71
- Longitudinal: 9.91
- Overall: 0.93
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
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Its possable but difficult.
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