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A 1913 battlecruiser, made for both the narrow waters of the baltic and the large oceans,

Nordstjernan, Sweden battlecruiser laid down 1913

Displacement:
16 613 t light; 17 668 t standard; 18 300 t normal; 18 732 t full load
Loading submergence 943 tons/feet

Dimensions:
590,55 ft x 78,74 ft x 22,97 ft (normal load)
180,00 m x 24,00 m x 7,00 m

Armament:
8 - 12,00" / 305 mm guns (4 Main turrets x 2 guns)
12 - 6,00" / 152 mm guns (6 2nd turrets x 2 guns)
12 - 2,24" / 57 mm QF guns
Weight of broadside 8 276 lbs / 3 754 kg
2 - 18,0" / 457,2 mm submerged torpedo tubes

Armour:
Belt 9,06" / 230 mm, upper belt 2,36" / 60 mm, end belts 2,36" / 60 mm
Belts cover 85 % of normal area
Main turrets 10,00" / 254 mm, 2nd turrets 4,92" / 125 mm
QF gun shields 0,20" / 5 mm
Armour deck 2,36" / 60 mm, Conning tower 7,28" / 185 mm

Machinery:
Coal fired boilers, steam turbines,
Direct drive, 4 shafts, 49 900 shp / 37 226 Kw = 25,00 kts
Range 4 000nm at 10,00 kts

Complement:
786 - 1 022

Cost:
£1,911 million / $7,643 million

Distribution of weights at normal displacement:
Armament: 1 034 tons, 5,7 %
Armour: 5 753 tons, 31,4 %
Belts: 1 756 tons, 9,6 %, Armament: 2 445 tons, 13,4 %, Armour Deck: 1 443 tons, 7,9 %
Conning Tower: 109 tons, 0,6 %, Torpedo bulkhead: 0 tons, 0,0 %
Machinery: 2 151 tons, 11,8 %
Hull, fittings & equipment: 7 675 tons, 41,9 %
Fuel, ammunition & stores: 1 687 tons, 9,2 %
Miscellaneous weights: 0 tons, 0,0 %

Metacentric height 4,1

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is excellent
Good seaboat, rides out heavy weather easily

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1,09
Shellfire needed to sink: 24 026 lbs / 10 898 Kg = 27,8 x 12,0 " / 305 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 2,5
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 58 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0,84
Relative quality as seaboat: 1,32

Hull form characteristics:
Block coefficient: 0,600
Sharpness coefficient: 0,40
Hull speed coefficient 'M': 6,85
'Natural speed' for length: 24,30 kts
Power going to wave formation at top speed: 50 %
Trim: 44
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 83,4 %
Relative accommodation and working space: 170,6 %
(Average = 100%)
Displacement factor: 100 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0,96
(Structure weight / hull surface area: 158 lbs / square foot or 769 Kg / square metre)
Relative longitudinal hull strength: 1,49
(for 21,33 ft / 6,50 m average freeboard, freeboard adjustment 4,24 ft)
Relative composite hull strength: 1,00

Hi!

Turreted secondaries in 1913 and a speed of only 25kn?

What´s your doctrine behind such a ship? How would it deal with british or german vessels her age?

Regards,

HoOmAn

They are buildt to play the role of "combat scouting" forward of the battleline and support own light uints(cruisers) against enemy armouredcruisers and battlecruisers

I redesigned her with more speed, but I think that she is abit weakly armed, only 6 x 12"

I have used turreted secondaries since 1901, in the tradition of the Swedish navy who started using that already in the late 1800s. Actually we didn't like casemats at all, on Fylgia (1904) for example the most casemates where removed already before ww1.

Nordstjernan, Sweden battlecruiser laid down 1913

Displacement:
15 510 t light; 16 395 t standard; 17 000 t normal; 17 416 t full load
Loading submergence 872 tons/feet

Dimensions:
590,55 ft x 72,18 ft x 22,97 ft (normal load)
180,00 m x 22,00 m x 7,00 m

Armament:
6 - 12,00" / 305 mm guns (3 Main turrets x 2 guns)
12 - 6,00" / 152 mm guns (6 2nd turrets x 2 guns)
12 - 2,24" / 57 mm QF guns
Weight of broadside 6 548 lbs / 2 970 kg
2 - 18,0" / 457,2 mm submerged torpedo tubes

Armour:
Belt 8,27" / 210 mm, upper belt 2,36" / 60 mm, end belts 2,36" / 60 mm
Belts cover 92 % of normal area
Main turrets 10,00" / 254 mm, 2nd turrets 4,92" / 125 mm
QF gun shields 0,20" / 5 mm
Armour deck 2,36" / 60 mm, Conning tower 7,28" / 185 mm

Machinery:
Coal fired boilers, steam turbines,
Direct drive, 4 shafts, 63 946 shp / 47 704 Kw = 27,00 kts
Range 4 000nm at 10,00 kts

Complement:
744 - 967

Cost:
£1,763 million / $7,053 million

Distribution of weights at normal displacement:
Armament: 818 tons, 4,8 %
Armour: 5 115 tons, 30,1 %
Belts: 1 695 tons, 10,0 %, Armament: 1 982 tons, 11,7 %, Armour Deck: 1 334 tons, 7,8 %
Conning Tower: 104 tons, 0,6 %, Torpedo bulkhead: 0 tons, 0,0 %
Machinery: 2 756 tons, 16,2 %
Hull, fittings & equipment: 6 820 tons, 40,1 %
Fuel, ammunition & stores: 1 490 tons, 8,8 %
Miscellaneous weights: 0 tons, 0,0 %

Metacentric height 3,4

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is excellent

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1,05
Shellfire needed to sink: 19 887 lbs / 9 021 Kg = 23,0 x 12,0 " / 305 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 2,1
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 57 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0,91
Relative quality as seaboat: 1,16

Hull form characteristics:
Block coefficient: 0,608
Sharpness coefficient: 0,39
Hull speed coefficient 'M': 7,02
'Natural speed' for length: 24,30 kts
Power going to wave formation at top speed: 53 %
Trim: 49
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 91,6 %
Relative accommodation and working space: 166,7 %
(Average = 100%)
Displacement factor: 99 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0,96
(Structure weight / hull surface area: 146 lbs / square foot or 712 Kg / square metre)
Relative longitudinal hull strength: 1,44
(for 21,33 ft / 6,50 m average freeboard, freeboard adjustment 4,49 ft)
Relative composite hull strength: 1,00