WesWorld

With a smaller budget the navu needs to replace its old monitors and Sverige class battleships the suggestion from the government is this, a BBL(battleship light) or armouredship

Capella, SWEDEN BBL laid down 1932

Displacement:
11 403 t light; 12 082 t standard; 12 868 t normal; 13 445 t full load
Loading submergence 799 tons/feet

Dimensions:
492,13 ft x 85,30 ft x 19,69 ft (normal load)
150,00 m x 26,00 m x 6,00 m

Armament:
6 - 11,14" / 283 mm guns (2 Main turrets x 3 guns)
8 - 6,00" / 152 mm guns (4 2nd turrets x 2 guns)
6 - 2,24" / 57 mm AA guns
8 - 0,98" / 25 mm guns
Weight of broadside 5 051 lbs / 2 291 kg

Armour:
Belt 10,00" / 254 mm, ends unarmoured
Belts cover 80 % of normal area
Main turrets 10,00" / 254 mm, 2nd turrets 3,00" / 76 mm
Armour deck 1,50" / 38 mm, Conning tower 10,00" / 254 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 4 shafts, 51 453 shp / 38 384 Kw = 26,00 kts
Range 6 000nm at 14,00 kts

Complement:
604 - 785

Cost:
£5,191 million / $20,765 million

Distribution of weights at normal displacement:
Armament: 631 tons, 4,9 %
Armour: 3 386 tons, 26,3 %
Belts: 1 245 tons, 9,7 %, Armament: 1 247 tons, 9,7 %, Armour Deck: 776 tons, 6,0 %
Conning Tower: 118 tons, 0,9 %, Torpedo bulkhead: 0 tons, 0,0 %
Machinery: 1 519 tons, 11,8 %
Hull, fittings & equipment: 5 817 tons, 45,2 %
Fuel, ammunition & stores: 1 464 tons, 11,4 %
Miscellaneous weights: 50 tons, 0,4 %

Metacentric height 4,8

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

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1,11
Shellfire needed to sink: 19 706 lbs / 8 939 Kg = 28,5 x 11,1 " / 283 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 2,8
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 62 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0,43
Relative quality as seaboat: 1,00

Hull form characteristics:
Block coefficient: 0,545
Sharpness coefficient: 0,41
Hull speed coefficient 'M': 6,42
'Natural speed' for length: 22,18 kts
Power going to wave formation at top speed: 58 %
Trim: 62
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 77,1 %
Relative accommodation and working space: 176,4 %
(Average = 100%)
Displacement factor: 112 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0,92
(Structure weight / hull surface area: 150 lbs / square foot or 731 Kg / square metre)
Relative longitudinal hull strength: 2,04
(for 20,01 ft / 6,10 m average freeboard, freeboard adjustment 4,09 ft)
Relative composite hull strength: 1,00


comments please, my site is updated in the coldwar section

Have you considered a higher length to beam ratio? This would offer you better seakeeping and performance. Something in the 530x80 range might be worth simming.

It makes sense to recycle the 283 mm turrets from your battlecruisers (if that's what you're doing), and gives the ship a good punch.

However, I think the mix of armor and speed is too much of a compromise to let the ship be successful in her roles. She's invulnerable to most cruiser fire, but can't force a cruiser to action on account of her speed. She can force German pre-dreads or Soviet dreadnoughts to action, but has just a slim advantage over the former, and is at a disadvantage over the latter once shooting starts.

My inclination would be to abandon the notion of chasing cruisers, drop the speed down to 20 or so knots, and bulk up on the armor. The result should be superior in all respects to a German pre-dread, and sufficient to tolerate the attention of a Soviet 12" dreadnought until help arrives.

J

http://pub57.ezboard.com/falltheworldsba…picID=357.topic


This should be interesting for you.

The Mk2 version with heavier guns

Capella, SWEDEN BBL laid down 1932

Displacement:
11 454 t light; 12 211 t standard; 13 000 t normal; 13 579 t full load
Loading submergence 781 tons/feet

Dimensions:
508,53 ft x 75,46 ft x 19,69 ft (normal load)
155,00 m x 23,00 m x 6,00 m

Armament:
4 - 14,00" / 356 mm guns (2 Main turrets x 2 guns)
8 - 4,72" / 120 mm guns (4 2nd turrets x 2 guns)
10 - 2,24" / 57 mm AA guns
8 - 0,98" / 25 mm guns
Weight of broadside 5 970 lbs / 2 708 kg

Armour:
Belt 10,00" / 254 mm, ends unarmoured
Belts cover 80 % of normal area
Main turrets 10,00" / 254 mm, 2nd turrets 2,00" / 51 mm
Armour deck 2,00" / 51 mm, Conning tower 10,00" / 254 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 4 shafts, 43 592 shp / 32 520 Kw = 25,00 kts
Range 6 000nm at 14,00 kts

Complement:
608 - 791

Cost:
£5,490 million / $21,961 million

Distribution of weights at normal displacement:
Armament: 746 tons, 5,7 %
Armour: 3 497 tons, 26,9 %
Belts: 1 183 tons, 9,1 %, Armament: 1 184 tons, 9,1 %, Armour Deck: 1 011 tons, 7,8 %
Conning Tower: 119 tons, 0,9 %, Torpedo bulkhead: 0 tons, 0,0 %
Machinery: 1 287 tons, 9,9 %
Hull, fittings & equipment: 5 874 tons, 45,2 %
Fuel, ammunition & stores: 1 546 tons, 11,9 %
Miscellaneous weights: 50 tons, 0,4 %

Metacentric height 3,5

Remarks:
Hull space for machinery, storage & compartmentation is excellent
Room for accommodation & workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1,04
Shellfire needed to sink: 18 857 lbs / 8 553 Kg = 13,7 x 14,0 " / 356 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: 72 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0,84
Relative quality as seaboat: 1,15

Hull form characteristics:
Block coefficient: 0,602
Sharpness coefficient: 0,41
Hull speed coefficient 'M': 6,61
'Natural speed' for length: 22,55 kts
Power going to wave formation at top speed: 55 %
Trim: 62
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 77,3 %
Relative accommodation and working space: 171,3 %
(Average = 100%)
Displacement factor: 108 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0,93
(Structure weight / hull surface area: 150 lbs / square foot or 732 Kg / square metre)
Relative longitudinal hull strength: 1,90
(for 20,01 ft / 6,10 m average freeboard, freeboard adjustment 4,05 ft)
Relative composite hull strength: 1,00

Pverall a bit larger, more speed and heavier guns than the Mk1

Capella, SWEDEN BBL laid down 1932

Displacement:
11 480 t light; 12 212 t standard; 13 000 t normal; 13 578 t full load
Loading submergence 789 tons/feet

Dimensions:
524,93 ft x 75,46 ft x 19,69 ft (normal load)
160,00 m x 23,00 m x 6,00 m

Armament:
6 - 12,00" / 305 mm guns (2 Main turrets x 3 guns)
8 - 4,72" / 120 mm guns (4 2nd turrets x 2 guns)
10 - 2,24" / 57 mm AA guns
8 - 0,98" / 25 mm guns
Weight of broadside 5 666 lbs / 2 570 kg

Armour:
Belt 10,00" / 254 mm, ends unarmoured
Belts cover 80 % of normal area
Main turrets 10,00" / 254 mm, 2nd turrets 2,00" / 51 mm
Armour deck 2,00" / 51 mm, Conning tower 10,00" / 254 mm

Machinery:
Diesel Internal combustion motors,
Geared drive, 4 shafts, 42 513 shp / 31 715 Kw = 25,00 kts
Range 6 000nm at 14,00 kts

Complement:
608 - 791

Cost:
£5,329 million / $21,317 million

Distribution of weights at normal displacement:
Armament: 708 tons, 5,4 %
Armour: 3 582 tons, 27,6 %
Belts: 1 216 tons, 9,4 %, Armament: 1 226 tons, 9,4 %, Armour Deck: 1 022 tons, 7,9 %
Conning Tower: 119 tons, 0,9 %, Torpedo bulkhead: 0 tons, 0,0 %
Machinery: 1 255 tons, 9,7 %
Hull, fittings & equipment: 5 885 tons, 45,3 %
Fuel, ammunition & stores: 1 520 tons, 11,7 %
Miscellaneous weights: 50 tons, 0,4 %

Metacentric height 3,5

Remarks:
Hull space for machinery, storage & compartmentation is excellent
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: 1,03
Shellfire needed to sink: 19 695 lbs / 8 934 Kg = 22,8 x 12,0 " / 305 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 2,7
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 76 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0,83
Relative quality as seaboat: 1,22

Hull form characteristics:
Block coefficient: 0,584
Sharpness coefficient: 0,40
Hull speed coefficient 'M': 6,83
'Natural speed' for length: 22,91 kts
Power going to wave formation at top speed: 53 %
Trim: 62
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 74,3 %
Relative accommodation and working space: 173,1 %
(Average = 100%)
Displacement factor: 110 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0,94
(Structure weight / hull surface area: 148 lbs / square foot or 721 Kg / square metre)
Relative longitudinal hull strength: 1,80
(for 20,01 ft / 6,10 m average freeboard, freeboard adjustment 4,05 ft)
Relative composite hull strength: 1,00