Or with lower blockcoefficient and higher speed, 54000shp as the RN Darings
Gathenhielm, Sweden Destroyer laid down 1949
Displacement:
2 495 t light; 2 608 t standard; 2 800 t normal; 2 953 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(396,69 ft / 387,14 ft) x 45,93 ft x (14,76 / 15,25 ft)
(120,91 m / 118,00 m) x 14,00 m x (4,50 / 4,65 m)
Armament:
6 - 4,72" / 120 mm 50,0 cal guns - 55,82lbs / 25,32kg shells, 300 per gun
Auto rapid fire guns in turret on barbette mounts, 1950 Model
3 x Twin mounts on centreline ends, majority forward
1 raised mount - superfiring
6 - 1,57" / 40,0 mm 70,0 cal guns - 2,19lbs / 0,99kg shells, 150 per gun
Anti-air guns in deck mounts, 1948 Model
6 x Single mounts on sides, evenly spread
6 raised mounts
Weight of broadside 348 lbs / 158 kg
Main Torpedoes
4 - 21,0" / 533 mm, 26,25 ft / 8,00 m torpedoes - 1,786 t each, 7,144 t total
In 2 sets of deck mounted centre rotating tubes
Main DC/AS Mortars
2 - 231,49 lbs / 105,00 kg Depth Charges + 20 reloads - 2,274 t total
in Stern depth charge racks
2nd DC/AS Mortars
8 - 440,92 lbs / 200,00 kg trainable AS Mortars + 5 reloads - 2,559 t total
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 0,79" / 20 mm 251,64 ft / 76,70 m 8,14 ft / 2,48 m
Ends: Unarmoured
Main Belt covers 100 % of normal length
Main belt does not fully cover magazines and engineering spaces
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,18" / 30 mm 0,39" / 10 mm 1,18" / 30 mm
2nd: 0,20" / 5 mm 0,20" / 5 mm -
- Box over machinery & magazines:
0,39" / 10 mm
- Conning towers: Forward 0,79" / 20 mm, Aft 0,00" / 0 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 54 562 shp / 40 703 Kw = 34,52 kts
Range 3 000nm at 16,00 kts
Bunker at max displacement = 345 tons
Complement:
192 - 250
Cost:
£2,259 million / $9,036 million
Distribution of weights at normal displacement:
Armament: 165 tons, 5,9 %
- Guns: 119 tons, 4,3 %
- Weapons: 45 tons, 1,6 %
Armour: 193 tons, 6,9 %
- Belts: 67 tons, 2,4 %
- Armament: 47 tons, 1,7 %
- Armour Deck: 76 tons, 2,7 %
- Conning Tower: 3 tons, 0,1 %
Machinery: 1 226 tons, 43,8 %
Hull, fittings & equipment: 786 tons, 28,1 %
Fuel, ammunition & stores: 305 tons, 10,9 %
Miscellaneous weights: 125 tons, 4,5 %
- Hull below water: 50 tons
- Hull above water: 25 tons
- On freeboard deck: 25 tons
- Above deck: 25 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1 073 lbs / 487 Kg = 20,4 x 4,7 " / 120 mm shells or 0,4 torpedoes
Stability (Unstable if below 1.00): 1,29
Metacentric height 2,4 ft / 0,7 m
Roll period: 12,3 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0,22
Seaboat quality (Average = 1.00): 0,87
Hull form characteristics:
Hull has rise forward of midbreak, low quarterdeck ,
a normal bow and small transom stern
Block coefficient (normal/deep): 0,373 / 0,381
Length to Beam Ratio: 8,43 : 1
'Natural speed' for length: 21,52 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 57
Bow angle (Positive = bow angles forward): 20,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20,00 %, 26,25 ft / 8,00 m, 22,97 ft / 7,00 m
- Forward deck: 30,00 %, 22,97 ft / 7,00 m, 19,69 ft / 6,00 m
- Aft deck: 35,00 %, 11,48 ft / 3,50 m, 11,48 ft / 3,50 m
- Quarter deck: 15,00 %, 11,15 ft / 3,40 m, 11,48 ft / 3,50 m
- Average freeboard: 16,97 ft / 5,17 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 157,5 %
- Above water (accommodation/working, high = better): 136,2 %
Waterplane Area: 11 004 Square feet or 1 022 Square metres
Displacement factor (Displacement / loading): 85 %
Structure weight / hull surface area: 46 lbs/sq ft or 225 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,53
- Longitudinal: 1,75
- Overall: 0,60
Cramped machinery, storage, compartmentation space
Excellent accommodation and workspace room
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather
_________________ Dieu et mon droit
Solus dux nullus ductus
Worklist
All Royal Swedish Navy units from 1522 to present
|