This is the RSwN armoered cruiser "HSwMS Axel von Fersen".
Axel von Fersen
Carl-Gustaf Tessin
Madame de Stael
Sweden Armoured cruiser laid down 1893
Displacement:
8 022 t light; 8 397 t standard; 9 000 t normal; 9 483 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(419,95 ft / 393,70 ft) x 65,62 ft x (19,69 / 20,56 ft)
(128,00 m / 120,00 m) x 20,00 m x (6,00 / 6,27 m)
Armament:
2 - 8,27" / 210 mm 45,0 cal guns - 284,98lbs / 129,26kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1893 Model
2 x Single mounts on centreline ends, evenly spread
2 - 8,27" / 210 mm 45,0 cal guns - 284,98lbs / 129,26kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1893 Model
2 x Single mounts on sides, forward deck centre
2 raised mounts
8 - 5,98" / 152 mm 45,0 cal guns - 108,07lbs / 49,02kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1893 Model
4 x Twin mounts on side ends, evenly spread
8 - 4,13" / 105 mm 45,0 cal guns - 35,62lbs / 16,16kg shells, 150 per gun
Breech loading guns in casemate mounts, 1893 Model
8 x Single mounts on sides, evenly spread
8 - 2,24" / 57,0 mm 45,0 cal guns - 5,66lbs / 2,57kg shells, 150 per gun
Quick firing guns in deck mounts, 1889 Model
8 x Single mounts on sides, evenly spread
8 raised mounts
Weight of broadside 2 335 lbs / 1 059 kg
Main Torpedoes
1 - 17,7" / 450 mm, 19,69 ft / 6,00 m torpedo - 0,543 t total
submerged side tube
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3,94" / 100 mm 370,73 ft / 113,00 m 9,71 ft / 2,96 m
Ends: 1,77" / 45 mm 16,40 ft / 5,00 m 9,71 ft / 2,96 m
6,56 ft / 2,00 m Unarmoured ends
Upper: 1,77" / 45 mm 295,28 ft / 90,00 m 8,01 ft / 2,44 m
Main Belt covers 145 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5,98" / 152 mm 2,56" / 65 mm 5,98" / 152 mm
2nd: 5,98" / 152 mm 2,56" / 65 mm 5,98" / 152 mm
3rd: 3,94" / 100 mm 1,77" / 45 mm 1,77" / 45 mm
4th: 1,77" / 45 mm 1,77" / 45 mm 1,77" / 45 mm
- Armoured deck - multiple decks:
For and Aft decks: 1,18" / 30 mm
Forecastle: 0,39" / 10 mm Quarter deck: 0,39" / 10 mm
- Conning towers: Forward 5,98" / 152 mm, Aft 5,98" / 152 mm
Machinery:
Coal fired boilers, complex reciprocating steam engines,
Geared drive, 2 shafts, 15 953 ihp / 11 901 Kw = 20,00 kts
Range 4 000nm at 10,00 kts
Bunker at max displacement = 1 086 tons (100% coal)
Complement:
461 - 600
Cost:
£0,877 million / $3,509 million
Distribution of weights at normal displacement:
Armament: 571 tons, 6,3 %
- Guns: 570 tons, 6,3 %
- Weapons: 1 tons, 0,0 %
Armour: 1 785 tons, 19,8 %
- Belts: 758 tons, 8,4 %
- Armament: 528 tons, 5,9 %
- Armour Deck: 387 tons, 4,3 %
- Conning Towers: 112 tons, 1,2 %
Machinery: 2 799 tons, 31,1 %
Hull, fittings & equipment: 2 798 tons, 31,1 %
Fuel, ammunition & stores: 978 tons, 10,9 %
Miscellaneous weights: 70 tons, 0,8 %
- Hull below water: 20 tons
- Hull above water: 10 tons
- On freeboard deck: 20 tons
- Above deck: 20 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
6 779 lbs / 3 075 Kg = 24,0 x 8,3 " / 210 mm shells or 2,8 torpedoes
Stability (Unstable if below 1.00): 1,42
Metacentric height 4,9 ft / 1,5 m
Roll period: 12,5 seconds
Steadiness - As gun platform (Average = 50 %): 60 %
- Recoil effect (Restricted arc if above 1.00): 0,31
Seaboat quality (Average = 1.00): 1,34
Hull form characteristics:
Hull has rise forward of midbreak,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0,619 / 0,625
Length to Beam Ratio: 6,00 : 1
'Natural speed' for length: 19,84 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 45
Bow angle (Positive = bow angles forward): -20,00 degrees
Stern overhang: -13,12 ft / -4,00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 10,00 %, 22,97 ft / 7,00 m, 19,69 ft / 6,00 m
- Forward deck: 20,00 %, 19,69 ft / 6,00 m, 19,69 ft / 6,00 m
- Aft deck: 55,00 %, 13,12 ft / 4,00 m, 13,12 ft / 4,00 m
- Quarter deck: 15,00 %, 13,12 ft / 4,00 m, 13,12 ft / 4,00 m
- Average freeboard: 15,22 ft / 4,64 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 122,8 %
- Above water (accommodation/working, high = better): 118,2 %
Waterplane Area: 19 239 Square feet or 1 787 Square metres
Displacement factor (Displacement / loading): 96 %
Structure weight / hull surface area: 116 lbs/sq ft or 566 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,95
- Longitudinal: 1,73
- Overall: 1,00
Cramped machinery, storage, compartmentation space
Adequate accommodation and workspace room
Good seaboat, rides out heavy weather easily