Here is a minelayer cruiser!!!
Lund Class, Nordmark Minelayers laid down 1930
Displacement:
6,900 t light; 7,092 t standard; 8,486 t normal; 9,600 t full load
Dimensions: Length overall / water x beam x draught
613.99 ft / 600.00 ft x 50.00 ft x 18.00 ft (normal load)
187.14 m / 182.88 m x 15.24 m x 5.49 m
Armament:
4 - 4.30" / 109 mm guns (2x2 guns), 39.75lbs / 18.03kg shells, 1930 Model
Dual purpose guns in turrets (on barbettes)
on centreline, all forward, 1 raised mount - superfiring
16 - 1.46" / 37.0 mm guns (4x4 guns), 1.55lbs / 0.70kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on side, all amidships, 2 raised mounts - superfiring
12 - 0.79" / 20.0 mm guns (8 mounts), 0.24lbs / 0.11kg shells, 1930 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 187 lbs / 85 kg
Shells per gun, main battery: 200
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.00" / 102 mm 440.00 ft / 134.11 m 10.00 ft / 3.05 m
Ends: 1.00" / 25 mm 160.00 ft / 48.77 m 10.00 ft / 3.05 m
Main Belt covers 113 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4.00" / 102 mm 2.00" / 51 mm 4.00" / 102 mm
2nd: 1.00" / 25 mm - -
3rd: 1.00" / 25 mm - -
- Armour deck: 1.50" / 38 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 75,659 shp / 56,442 Kw = 32.00 kts
Range 12,000nm at 15.00 kts
Bunker at max displacement = 2,508 tons
Complement:
441 - 574
Cost:
£2.434 million / $9.736 million
Distribution of weights at normal displacement:
Armament: 23 tons, 0.3 %
Armour: 1,447 tons, 17.1 %
- Belts: 771 tons, 9.1 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 95 tons, 1.1 %
- Armour Deck: 581 tons, 6.8 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 2,293 tons, 27.0 %
Hull, fittings & equipment: 2,796 tons, 33.0 %
Fuel, ammunition & stores: 1,586 tons, 18.7 %
Miscellaneous weights: 340 tons, 4.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
10,855 lbs / 4,924 Kg = 273.1 x 4.3 " / 109 mm shells or 1.4 torpedoes
Stability (Unstable if below 1.00): 1.27
Metacentric height 2.7 ft / 0.8 m
Roll period: 12.7 seconds
Steadiness - As gun platform (Average = 50 %): 64 %
- Recoil effect (Restricted arc if above 1.00): 0.07
Seaboat quality (Average = 1.00): 1.28
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 12.00 : 1
'Natural speed' for length: 24.49 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 30.00 ft / 9.14 m
- Forecastle (30 %): 22.00 ft / 6.71 m
- Mid (50 %): 15.00 ft / 4.57 m
- Quarterdeck (20 %): 15.00 ft / 4.57 m
- Stern: 15.00 ft / 4.57 m
- Average freeboard: 18.76 ft / 5.72 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 94.8 %
- Above water (accommodation/working, high = better): 148.3 %
Waterplane Area: 20,937 Square feet or 1,945 Square metres
Displacement factor (Displacement / loading): 129 %
Structure weight / hull surface area: 77 lbs/sq ft or 377 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.14
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Good seaboat, rides out heavy weather easily
2 ships built Lund & Malmö