HSwMS Kronprinsessan Louise, airdefence cruiser. The class was a swedish response to the growing airthreat especially from the japanese airforces in pacific theater. The have lots of similarites to the RN Didos and USN Atlantas. The ships are named after the crownprinsess Louise who is the siser of lord Louis Mountbatten, Earl of Burma. The second ship is named Eugenie after the RSwNs first circum navigation and a royal princess
Sweden Airdefence cruiser laid down 1942
Kronprinsessan Louise (Eugenie)
Displacement:
5 973 t light; 6 241 t standard; 6 800 t normal; 7 247 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(504,96 ft / 492,13 ft) x 52,49 ft x (19,69 / 20,60 ft)
(153,91 m / 150,00 m) x 16,00 m x (6,00 / 6,28 m)
Armament:
12 - 4,72" / 120 mm 45,0 cal guns - 53,18lbs / 24,12kg shells, 250 per gun
Dual purpose guns in turret on barbette mounts, 1942 Model
4 x Twin mounts on centreline ends, evenly spread
2 raised mounts - superfiring
2 x Twin mounts on centreline ends, evenly spread
2 double raised mounts
8 - 2,95" / 75,0 mm 50,0 cal guns - 13,62lbs / 6,18kg shells, 500 per gun
Breech loading guns in deck and hoist mounts, 1942 Model
4 x Twin mounts on sides, evenly spread
20 - 1,57" / 40,0 mm 60,0 cal guns - 2,14lbs / 0,97kg shells, 500 per gun
Anti-air guns in deck mounts, 1936 Model
8 x Twin mounts on sides, evenly spread
8 raised mounts
2 x Twin mounts on centreline ends, evenly spread
12 - 0,98" / 25,0 mm 45,0 cal guns - 0,48lbs / 0,22kg shells, 500 per gun
Anti-air guns in deck mounts, 1932 Model
6 x Twin mounts on sides, evenly spread
6 double raised mounts
Weight of broadside 796 lbs / 361 kg
Mines
2 - 881,85 lbs / 400,00 kg mines + 40 reloads - 16,535 t total
in Above water - Stern racks/rails
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1,97" / 50 mm 344,49 ft / 105,00 m 8,69 ft / 2,65 m
Ends: 0,39" / 10 mm 131,23 ft / 40,00 m 8,69 ft / 2,65 m
16,40 ft / 5,00 m Unarmoured ends
Upper: 0,39" / 10 mm 328,08 ft / 100,00 m 8,01 ft / 2,44 m
Main Belt covers 108 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,97" / 50 mm 0,98" / 25 mm 1,97" / 50 mm
2nd: 0,98" / 25 mm 0,39" / 10 mm 0,98" / 25 mm
- Armoured deck - multiple decks:
For and Aft decks: 1,77" / 45 mm
Forecastle: 0,79" / 20 mm Quarter deck: 0,79" / 20 mm
- Conning towers: Forward 1,97" / 50 mm, Aft 1,97" / 50 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 74 331 shp / 55 451 Kw = 33,00 kts
Range 5 000nm at 16,00 kts
Bunker at max displacement = 1 005 tons
Complement:
373 - 486
Cost:
£3,552 million / $14,208 million
Distribution of weights at normal displacement:
Armament: 220 tons, 3,2 %
- Guns: 199 tons, 2,9 %
- Weapons: 21 tons, 0,3 %
Armour: 1 022 tons, 15,0 %
- Belts: 299 tons, 4,4 %
- Armament: 184 tons, 2,7 %
- Armour Deck: 507 tons, 7,5 %
- Conning Towers: 30 tons, 0,4 %
Machinery: 1 942 tons, 28,6 %
Hull, fittings & equipment: 2 640 tons, 38,8 %
Fuel, ammunition & stores: 827 tons, 12,2 %
Miscellaneous weights: 150 tons, 2,2 %
- Hull below water: 25 tons
- Hull above water: 50 tons
- On freeboard deck: 25 tons
- Above deck: 50 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7 596 lbs / 3 446 Kg = 144,1 x 4,7 " / 120 mm shells or 1,2 torpedoes
Stability (Unstable if below 1.00): 1,08
Metacentric height 2,2 ft / 0,7 m
Roll period: 14,9 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0,44
Seaboat quality (Average = 1.00): 1,04
Hull form characteristics:
Hull has a flush deck,
a normal bow and small transom stern
Block coefficient (normal/deep): 0,468 / 0,477
Length to Beam Ratio: 9,38 : 1
'Natural speed' for length: 23,92 kts
Power going to wave formation at top speed: 62 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 20,00 degrees
Stern overhang: 3,28 ft / 1,00 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 %, 19,69 ft / 6,00 m, 16,40 ft / 5,00 m
- Quarter deck: 15,00 %, 16,40 ft / 5,00 m, 16,40 ft / 5,00 m
- Average freeboard: 20,03 ft / 6,11 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 105,7 %
- Above water (accommodation/working, high = better): 171,0 %
Waterplane Area: 17 123 Square feet or 1 591 Square metres
Displacement factor (Displacement / loading): 117 %
Structure weight / hull surface area: 90 lbs/sq ft or 440 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,91
- Longitudinal: 2,24
- Overall: 1,00
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room