Wapen van Zeeland (NL/CB/1950), Netherlands Battlecruiser laid down 1950 Displacement: 32,216 t light; 33,434 t standard; 37,994 t normal; 41,643 t full load Dimensions: Length (overall / waterline) x beam x draught (normal/deep) (870.95 ft / 854.00 ft) x 106.00 ft x (26.00 / 27.91 ft) (265.47 m / 260.30 m) x 32.31 m x (7.92 / 8.51 m) Armament: 6 - 12.00" / 305 mm 55.0 cal guns - 935.00lbs / 424.11kg shells, 120 per gun Breech loading guns in turret on barbette mounts, 1950 Model 2 x Single mounts on centreline, forward deck forward 1 raised mount - superfiring 12 - 5.00" / 127 mm 65.0 cal guns - 70.00lbs / 31.75kg shells, 150 per gun Dual purpose guns in turret on barbette mounts, 1950 Model 6 x Twin mounts on sides, aft deck forward 16 - 2.24" / 57.0 mm 70.0 cal guns - 6.33lbs / 2.87kg shells, 250 per gun Anti-air guns in deck and hoist mounts, 1950 Model 8 x Single mounts on sides, aft deck forward Weight of broadside 6,551 lbs / 2,972 kg Armour: - Belts: Width (max) Length (avg) Height (avg) Main: 8.00" / 203 mm 580.00 ft / 176.78 m 12.00 ft / 3.66 m Ends: Unarmoured Main Belt covers 104 % of normal length - Torpedo Bulkhead: 4.00" / 102 mm 580.00 ft / 176.78 m 26.00 ft / 7.92 m - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max) Main: 10.0" / 254 mm 7.00" / 178 mm 10.0" / 254 mm 2nd: 3.00" / 76 mm 3.00" / 76 mm 3.00" / 76 mm 3rd: 1.00" / 25 mm - 1.00" / 25 mm - Armoured deck - multiple decks: 4.00" / 102 mm For and Aft decks - Conning towers: Forward 10.00" / 254 mm, Aft 0.00" / 0 mm Machinery: Oil fired boilers, steam turbines, Geared drive, 4 shafts, 246,074 shp / 183,571 Kw = 36.00 kts Range 12,000nm at 18.00 kts Bunker at max displacement = 8,209 tons Complement: 1,359 - 1,768 Cost: £21.276 million / $85.106 million Distribution of weights at normal displacement: Armament: 1,839 tons, 4.8 % Armour: 10,327 tons, 27.2 % - Belts: 2,339 tons, 6.2 % - Torpedo bulkhead: 2,232 tons, 5.9 % - Armament: 1,822 tons, 4.8 % - Armour Deck: 3,690 tons, 9.7 % - Conning Tower: 243 tons, 0.6 % Machinery: 5,887 tons, 15.5 % Hull, fittings & equipment: 14,163 tons, 37.3 % Fuel, ammunition & stores: 5,779 tons, 15.2 % Miscellaneous weights: 0 tons, 0.0 % Overall survivability and seakeeping ability: Survivability (Non-critical penetrating hits needed to sink ship): 74,234 lbs / 33,672 Kg = 85.9 x 12.0 " / 305 mm shells or 12.5 torpedoes Stability (Unstable if below 1.00): 1.34 Metacentric height 9.1 ft / 2.8 m Roll period: 14.7 seconds Steadiness - As gun platform (Average = 50 %): 52 % - Recoil effect (Restricted arc if above 1.00): 0.22 Seaboat quality (Average = 1.00): 1.05 Hull form characteristics: Hull has a flush deck, an extended bulbous bow and large transom stern Block coefficient (normal/deep): 0.565 / 0.577 Length to Beam Ratio: 8.06 : 1 'Natural speed' for length: 33.68 kts Power going to wave formation at top speed: 57 % Trim (Max stability = 0, Max steadiness = 100): 50 Bow angle (Positive = bow angles forward): 22.00 degrees Stern overhang: 2.00 ft / 0.61 m Freeboard (% = length of deck as a percentage of waterline length): Fore end, Aft end - Forecastle: 30.00 %, 37.00 ft / 11.28 m, 29.00 ft / 8.84 m - Forward deck: 30.00 %, 29.00 ft / 8.84 m, 26.00 ft / 7.92 m - Aft deck: 25.00 %, 26.00 ft / 7.92 m, 26.00 ft / 7.92 m - Quarter deck: 15.00 %, 26.00 ft / 7.92 m, 27.00 ft / 8.23 m - Average freeboard: 28.39 ft / 8.65 m Ship space, strength and comments: Space - Hull below water (magazines/engines, low = better): 85.4 % - Above water (accommodation/working, high = better): 250.8 % Waterplane Area: 66,726 Square feet or 6,199 Square metres Displacement factor (Displacement / loading): 129 % Structure weight / hull surface area: 166 lbs/sq ft or 808 Kg/sq metre Hull strength (Relative): - Cross-sectional: 0.97 - Longitudinal: 1.24 - Overall: 1.00 Hull space for machinery, storage, compartmentation is adequate Room for accommodation and workspaces is excellent
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Saturday, July 07, 2007
My design for a 1950 Dutch battlecruiser: the Wapen van Zeeland
I would build this class of four Dutch battlecruisers that are trying tohave a more modern outlook on fast capital ship design: the Wapen van Zeeland, Gouden Leeuw, Eendracht, and Nassau. I call the design the NL/CB/1950. The ships would obviously need operate under air cover, but could deliver shore bombardments and back lesser ships in blockades. This is the Springsharp report:
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