Did the Myrup in SS2, absolutely spot on...
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Myrup, Recherche Destroyer laid down 1938
Displacement:
1,640 t light; 1,753 t standard; 2,060 t normal; 2,306 t full load
Dimensions: Length overall / water x beam x draught
377.24 ft / 369.75 ft x 36.42 ft x 16.12 ft (normal load)
114.98 m / 112.70 m x 11.10 m x 4.91 m
Armament:
8 - 4.72" / 120 mm guns (4x2 guns), 52.58lbs / 23.85kg shells, 1938 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, evenly spread, 2 raised mounts - superfiring
4 - 1.57" / 40.0 mm guns (1x4 guns), 1.95lbs / 0.88kg shells, 1938 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
4 - 0.79" / 20.0 mm guns (2x2 guns), 0.24lbs / 0.11kg shells, 1938 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
4 - 0.50" / 12.7 mm guns (2x2 guns), 0.06lbs / 0.03kg shells, 1938 Model
Machine guns in deck mounts
on side, all forward, all raised mounts - superfiring
Weight of broadside 430 lbs / 195 kg
Shells per gun, main battery: 300
4 - 21.0" / 533.4 mm above water torpedoes
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - -
2nd: 1.00" / 25 mm - -
3rd: 0.75" / 19 mm - -
4th: 0.75" / 19 mm - -
- Conning tower: 1.00" / 25 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 35,824 shp / 26,725 Kw = 32.00 kts
Range 6,500nm at 15.00 kts
Bunker at max displacement = 552 tons
Complement:
152 - 198
Cost:
£1.270 million / $5.081 million
Distribution of weights at normal displacement:
Armament: 54 tons, 2.6 %
Armour: 23 tons, 1.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 19 tons, 0.9 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 3 tons, 0.2 %
Machinery: 878 tons, 42.6 %
Hull, fittings & equipment: 610 tons, 29.6 %
Fuel, ammunition & stores: 421 tons, 20.4 %
Miscellaneous weights: 75 tons, 3.6 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
624 lbs / 283 Kg = 11.9 x 4.7 " / 120 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.27
Metacentric height 1.7 ft / 0.5 m
Roll period: 11.7 seconds
Steadiness - As gun platform (Average = 50 %): 61 %
- Recoil effect (Restricted arc if above 1.00): 0.60
Seaboat quality (Average = 1.00): 1.21
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.332
Length to Beam Ratio: 10.15 : 1
'Natural speed' for length: 19.23 kts
Power going to wave formation at top speed: 60 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 1.50 ft / 0.46 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 16.46 ft / 5.02 m
- Forecastle (20 %): 16.46 ft / 5.02 m
- Mid (50 %): 16.46 ft / 5.02 m (12.46 ft / 3.80 m aft of break)
- Quarterdeck (15 %): 12.46 ft / 3.80 m
- Stern: 12.46 ft / 3.80 m
- Average freeboard: 14.46 ft / 4.41 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 163.5 %
- Above water (accommodation/working, high = better): 117.4 %
Waterplane Area: 8,232 Square feet or 765 Square metres
Displacement factor (Displacement / loading): 83 %
Structure weight / hull surface area: 38 lbs/sq ft or 188 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.48
- Longitudinal: 1.79
- Overall: 0.54
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Good seaboat, rides out heavy weather easily
TT's in a quad centerline mount. Miscellaneous weight includes 2 DCT's and 2 DC racks.
Design works well with a little excess hull strength left over.
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