Gathenhielm, Sweden Destroyer laid down 1947 Displacement: 3 149 t light; 3 276 t standard; 3 503 t normal; 3 684 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 / 15,30 ft) (120,91 m / 118,00 m) x 14,00 m x (4,50 / 4,66 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, 1947 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, 1947 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 - - Armoured deck - multiple decks: For and Aft decks: 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, 71 855 shp / 53 604 Kw = 35,00 kts Range 3 000nm at 16,00 kts Bunker at max displacement = 408 tons Complement: 226 - 295 Cost: £2,780 million / $11,118 million Distribution of weights at normal displacement: Armament: 165 tons, 4,7 % - Guns: 119 tons, 3,4 % - Weapons: 45 tons, 1,3 % Armour: 189 tons, 5,4 % - Belts: 67 tons, 1,9 % - Armament: 47 tons, 1,3 % - Armour Deck: 70 tons, 2,0 % - Conning Tower: 4 tons, 0,1 % Machinery: 1 679 tons, 47,9 % Hull, fittings & equipment: 991 tons, 28,3 % Fuel, ammunition & stores: 354 tons, 10,1 % Miscellaneous weights: 125 tons, 3,6 % - 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): 1 196 lbs / 543 Kg = 22,7 x 4,7 " / 120 mm shells or 0,3 torpedoes Stability (Unstable if below 1.00): 1,16 Metacentric height 2,0 ft / 0,6 m Roll period: 13,5 seconds Steadiness - As gun platform (Average = 50 %): 51 % - Recoil effect (Restricted arc if above 1.00): 0,23 Seaboat quality (Average = 1.00): 0,66 Hull form characteristics: Hull has rise forward of midbreak, low quarterdeck , a normal bow and small transom stern Block coefficient (normal/deep): 0,467 / 0,474 Length to Beam Ratio: 8,43 : 1 'Natural speed' for length: 21,33 kts Power going to wave formation at top speed: 71 % 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 (% = 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): 167,7 % - Above water (accommodation/working, high = better): 126,1 % Waterplane Area: 11 776 Square feet or 1 094 Square metres Displacement factor (Displacement / loading): 83 % Structure weight / hull surface area: 54 lbs/sq ft or 263 Kg/sq metre Hull strength (Relative): - Cross-sectional: 0,63 - Longitudinal: 1,76 - Overall: 0,70 Cramped machinery, storage, compartmentation space Excellent accommodation and workspace room Caution: Lacks seaworthiness - very limited seakeeping ability