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
This is a forum for discussion of topics relating to the Dreadnought era, prior to the ascendency of naval aviation. We will be discussing history, ship design, and naval wargaming.
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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