Due to the shortage of destroyers, the CNDO was commissioned to design a destroyer.
Displacement:
2.000 t light; 2.178 t standard; 2.365 t normal; 2.514 t full load
Dimensions: Length overall / water x beam x draught
374,27 ft / 364,99 ft x 37,57 ft x 15,09 ft (normal load)
114,08 m / 111,25 m x 11,45 m x 4,60 m
Armament:
8 - 5,00" / 127 mm guns (4x2 guns), 62,50lbs / 28,35kg 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 (2x2 guns), 1,95lbs / 0,88kg shells, 1938 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
10 - 0,98" / 25,0 mm guns (5x2 guns), 0,48lbs / 0,22kg shells, 1938 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 513 lbs / 232 kg
Shells per gun, main battery: 450
6 - 21,0" / 533 mm above water torpedoes
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,97" / 50 mm 0,98" / 25 mm -
2nd: 0,79" / 20 mm 0,39" / 10 mm -
3rd: 0,39" / 10 mm - -
- Conning tower: 0,98" / 25 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 44.060 shp / 32.869 Kw = 34,00 kts
Range 3.850nm at 15,00 kts
Bunker at max displacement = 336 tons
Complement:
169 - 220
Cost:
£1,535 million / $6,141 million
Distribution of weights at normal displacement:
Armament: 64 tons, 2,7%
Armour: 41 tons, 1,8%
- Belts: 0 tons, 0,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 38 tons, 1,6%
- Armour Deck: 0 tons, 0,0%
- Conning Tower: 4 tons, 0,2%
Machinery: 1.061 tons, 44,9%
Hull, fittings & equipment: 784 tons, 33,1%
Fuel, ammunition & stores: 365 tons, 15,4%
Miscellaneous weights: 50 tons, 2,1%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
688 lbs / 312 Kg = 11,0 x 5,0 " / 127 mm shells or 0,3 torpedoes
Stability (Unstable if below 1.00): 1,08
Metacentric height 1,3 ft / 0,4 m
Roll period: 13,6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,94
Seaboat quality (Average = 1.00): 1,08
Hull form characteristics:
Hull has raised forecastle, rise forward of midbreak
and transom stern
Block coefficient: 0,400
Length to Beam Ratio: 9,72 : 1
'Natural speed' for length: 22,15 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 65
Bow angle (Positive = bow angles forward): 22,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 22,97 ft / 7,00 m
- Forecastle (20%): 22,31 ft / 6,80 m (21,33 ft / 6,50 m aft of break)
- Mid (50%): 20,67 ft / 6,30 m (13,12 ft / 4,00 m aft of break)
- Quarterdeck (20%): 13,12 ft / 4,00 m
- Stern: 13,12 ft / 4,00 m
- Average freeboard: 17,38 ft / 5,30 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 171,9%
- Above water (accommodation/working, high = better): 117,7%
Waterplane Area: 8.759 Square feet or 814 Square metres
Displacement factor (Displacement / loading): 78%
Structure weight / hull surface area: 43 lbs/sq ft or 208 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,50
- Longitudinal: 2,74
- Overall: 0,59
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