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Monday, July 25th 2005, 1:17am

Axel von Fersen, Armoured cruiser



Axel von Fersen, Armoured cruiser Sweden laid down 1892

Displacement:
8 487 t light; 8 834 t standard; 9 500 t normal; 10 033 t full load

Dimensions: Length overall / water x beam x draught
419,95 ft / 419,95 ft x 72,18 ft x 19,69 ft (normal load)
128,00 m / 128,00 m x 22,00 m x 6,00 m

Armament:
2 - 8,27" / 210 mm guns in single mounts, 282,57lbs / 128,17kg shells, 1892 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
8 - 5,98" / 152 mm guns (4x2 guns), 107,15lbs / 48,60kg shells, 1892 Model
Breech loading guns in turrets (on barbettes)
on side, all amidships
6 - 4,13" / 105 mm guns in single mounts, 35,32lbs / 16,02kg shells, 1892 Model
Breech loading guns in casemate mounts
on side, evenly spread
6 guns in hull casemates - Limited use in all but light seas
6 - 2,24" / 57,0 mm guns in single mounts, 5,65lbs / 2,56kg shells, 1892 Model
Quick firing guns in deck mounts
on side, evenly spread
Weight of broadside 1 668 lbs / 757 kg
Shells per gun, main battery: 150
2 - 18,0" / 457,2 mm submerged torpedo tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5,98" / 152 mm 403,54 ft / 123,00 m 9,71 ft / 2,96 m
Ends: 0,98" / 25 mm 13,12 ft / 4,00 m 9,71 ft / 2,96 m
3,28 ft / 1,00 m Unarmoured ends
Upper: 0,98" / 25 mm 255,91 ft / 78,00 m 8,01 ft / 2,44 m
Main Belt covers 148 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 5,98" / 152 mm 2,95" / 75 mm 5,98" / 152 mm
2nd: 4,13" / 105 mm 1,97" / 50 mm 4,13" / 105 mm
3rd: 0,98" / 25 mm - -
4th: 0,20" / 5 mm - -

- Armour deck: 0,98" / 25 mm, Conning tower: 4,13" / 105 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 3 shafts, 19 183 ihp / 14 311 Kw = 21,00 kts
Range 4 200nm at 10,00 kts (Bunkerage = 1 199 tons)

Complement:
480 - 625

Cost:
£0,952 million / $3,807 million

Distribution of weights at normal displacement:
Armament: 209 tons, 2,2 %
Armour: 1 797 tons, 18,9 %
- Belts: 1 020 tons, 10,7 %
- Torpedo bulkhead: 0 tons, 0,0 %
- Armament: 349 tons, 3,7 %
- Armour Deck: 388 tons, 4,1 %
- Conning Tower: 40 tons, 0,4 %
Machinery: 3 426 tons, 36,1 %
Hull, fittings & equipment: 3 057 tons, 32,2 %
Fuel, ammunition & stores: 1 013 tons, 10,7 %
Miscellaneous weights: 0 tons, 0,0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
5 296 lbs / 2 402 Kg = 18,7 x 8,3 " / 210 mm shells or 1,1 torpedoes
Stability (Unstable if below 1.00): 1,30
Metacentric height 4,9 ft / 1,5 m
Roll period: 13,7 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- Recoil effect (Restricted arc if above 1.00): 0,19
Seaboat quality (Average = 1.00): 1,33

Hull form characteristics:
Hull has raised forecastle
Block coefficient: 0,557
Length to Beam Ratio: 5,82 : 1
'Natural speed' for length: 20,49 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 75
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: 22,97 ft / 7,00 m
- Forecastle (20 %): 19,69 ft / 6,00 m (13,12 ft / 4,00 m aft of break)
- Mid (50 %): 13,12 ft / 4,00 m
- Quarterdeck (15 %): 13,12 ft / 4,00 m
- Stern: 13,12 ft / 4,00 m
- Average freeboard: 14,70 ft / 4,48 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 137,2 %
- Above water (accommodation/working, high = better): 110,9 %
Waterplane Area: 21 298 Square feet or 1 979 Square metres
Displacement factor (Displacement / loading): 92 %
Structure weight / hull surface area: 106 lbs/sq ft or 518 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,96
- Longitudinal: 1,47
- Overall: 1,00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

Number in class 3: Axel von Fersen, Carl-Gustaf Tessin, Hans Mörner

2

Monday, July 25th 2005, 2:24am

Interesting little ship

The bow, and especially the funnels, look more French then Swedish, though.

3

Monday, July 25th 2005, 2:35am

Glad you noticed, I was greatly inspired by th George de Luyme AC. My idea is that she is designed by french designers as a goodwill statement from sweden who has done a lot of weapons deals with the british.

All their names are also from french-swedish connections

!. Axel von Fersen, count and plausable lover of Marie-Antionette, diplomat and help the french royal family escape but they where stopped in Varenne and the rest we know.later Reichmarshal (is it called that i Sweden also) and murdered by a mob in stockholm
2. Carl-Gustaf Tessin, count, longtime ambassador to france, tutor of king Gustaf III etc in the middle of the 18th century.One of Swedens great 18th century culturalpersonalities
4. Hans Mörner, count, took a personal iniative and went to france to ask Jean-Baptiste Bernadotte if he wanted to become king of Sweden in the crisis of 1809/10.

4

Monday, July 25th 2005, 4:20am

Wouldn't want to meet that in a dark Fjord.

5

Monday, July 25th 2005, 9:33am

At the moment, I can only see the sim. I think she seems more like Cressy than anything else. Removing the 105mm guns would make space for more 150mm guns. At this point, the 150mm guns were the main weapon of cruisers, being capable of rapid fire to destroy upperworks. The larger guns were to deliver the coup de grace. However a 210mm gun isn't really large enough for that. 2x240mm or larger would be better.

6

Monday, July 25th 2005, 6:01pm

Iberia has 230 mm main gun cruisers at the time IIRC

7

Wednesday, July 27th 2005, 11:01pm

ok...

The 210mm guns are more rapid firing than a 9 or 10" in. How much diffrence does an inch or two make on a relativly unarmoured hull as cruiser with such a large shell?

She is quite fast for her time as well.