The second batch of swedish armoured cruisers(1st Kronprinsen, 2nd, Urd and 3d Valkyria). modeled after the British Cressys.
New pictures for Tapperheten, Dristigheten and Admiral-class ships are added.
Urd, Armoured cruiser Sweden laid down 1901
Displacement:
9 123 t light; 9 447 t standard; 10 000 t normal; 10 403 t full load
Loading submergence 617 tons/feet
Dimensions:
442,91 ft x 72,18 ft x 19,69 ft (normal load)
135,00 m x 22,00 m x 6,00 m
Armament:
2 - 8,27" / 210 mm guns (2 Main turrets x 1 guns)
8 - 5,98" / 152 mm guns (4 2nd turrets x 2 guns)
10 - 2,24" / 57 mm QF guns
QF guns mounted low & subject to being washed down in a seaway
2 - 0,79" / 20 mm guns
Weight of broadside 1 479 lbs / 671 kg
2 - 18,0" / 457,2 mm submerged torpedo tubes
Armour:
Belt 5,98" / 152 mm, upper belt 0,98" / 25 mm, end belts 0,98" / 25 mm
Belts cover 134 % of normal area
Main turrets 7,87" / 200 mm, 2nd turrets 4,92" / 125 mm
QF casemates 0,98" / 25 mm, Light gun shields 0,20" / 5 mm
Armour deck 1,18" / 30 mm, Conning tower 4,92" / 125 mm
Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 3 shafts, 23 191 ihp / 17 300 Kw = 22,00 kts
Range 4 000nm at 10,00 kts
Complement:
500 - 650
Cost:
£0,974 million / $3,897 million
Distribution of weights at normal displacement:
Armament: 185 tons, 1,8 %
Armour: 2 310 tons, 23,1 %
Belts: 1 233 tons, 12,3 %, Armament: 556 tons, 5,6 %, Armour Deck: 471 tons, 4,7 %
Conning Tower: 49 tons, 0,5 %, Torpedo bulkhead: 0 tons, 0,0 %
Machinery: 3 568 tons, 35,7 %
Hull, fittings & equipment: 3 061 tons, 30,6 %
Fuel, ammunition & stores: 877 tons, 8,8 %
Miscellaneous weights: 0 tons, 0,0 %
Metacentric height 4,8
Remarks:
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1,28
Shellfire needed to sink: 6 098 lbs / 2 766 Kg = 21,6 x 8,3 " / 210 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1,1
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 84 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0,17
Relative quality as seaboat: 1,20
Hull form characteristics:
Block coefficient: 0,556
Sharpness coefficient: 0,41
Hull speed coefficient 'M': 6,29
'Natural speed' for length: 21,05 kts
Power going to wave formation at top speed: 52 %
Trim: 70
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)
Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 132,9 %
Relative accommodation and working space: 121,4 %
(Average = 100%)
Displacement factor: 92 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0,97
(Structure weight / hull surface area: 102 lbs / square foot or 498 Kg / square metre)
Relative longitudinal hull strength: 1,29
(for 14,76 ft / 4,50 m average freeboard, freeboard adjustment -0,38 ft)
Relative composite hull strength: 1,00
Number in class 3: Urd, Skuld, Verdande
What do you think?