Ligth-Battle-Cruiser Design for sale&building

[ledeper]

Odin, Baltic Confederation  Ligth-Battle-Cruiser  laid down 1912

Displacement:
   14.010 t light; 14.784 t standard; 15.899 t normal; 16.792 t full load

Dimensions: Length overall / water x beam x draught
   557,27 ft / 547,90 ft x 75,46 ft x 24,61 ft (normal load)
   169,86 m / 167,00 m x 23,00 m  x 7,50 m

Armament:
      6 - 12,00" / 305 mm guns (2x3 guns), 864,00lbs / 391,90kg shells, 1912 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread
      10 - 6,00" / 152 mm guns in single mounts, 108,00lbs / 48,99kg shells, 1912 Model
     Breech loading guns in deck mounts with hoists
     on side, all amidships
      10 - 4,00" / 102 mm guns in single mounts, 32,00lbs / 14,51kg shells, 1912 Model
     Quick firing guns in deck mounts
     on side, evenly spread
   Weight of broadside 6.584 lbs / 2.986 kg
   Shells per gun, main battery: 120

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   10,0" / 254 mm   356,14 ft / 108,55 m   10,43 ft / 3,18 m
   Ends:   Unarmoured
   Upper:   5,00" / 127 mm   356,14 ft / 108,55 m   8,01 ft / 2,44 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   10,0" / 254 mm   5,00" / 127 mm      10,0" / 254 mm
   2nd:   1,00" / 25 mm         -               -
   3rd:   0,50" / 13 mm         -               -

   - Armour deck: 2,50" / 64 mm, Conning tower: 12,00" / 305 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 3 shafts, 57.885 shp / 43.182 Kw = 26,50 kts
   Range 5.000nm at 14,00 kts
   Bunker at max displacement = 2.008 tons

Complement:
   707 - 920

Cost:
   £1,505 million / $6,019 million

Distribution of weights at normal displacement:
   Armament: 823 tons, 5,2 %
   Armour: 4.577 tons, 28,8 %
      - Belts: 2.211 tons, 13,9 %
      - Torpedo bulkhead: 0 tons, 0,0 %
      - Armament: 871 tons, 5,5 %
      - Armour Deck: 1.331 tons, 8,4 %
      - Conning Tower: 163 tons, 1,0 %
   Machinery: 2.308 tons, 14,5 %
   Hull, fittings & equipment: 5.952 tons, 37,4 %
   Fuel, ammunition & stores: 1.890 tons, 11,9 %
   Miscellaneous weights: 350 tons, 2,2 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     17.580 lbs / 7.974 Kg = 20,3 x 12,0 " / 305 mm shells or 2,2 torpedoes
   Stability (Unstable if below 1.00): 1,14
   Metacentric height 4,2 ft / 1,3 m
   Roll period: 15,5 seconds
   Steadiness   - As gun platform (Average = 50 %): 52 %
         - Recoil effect (Restricted arc if above 1.00): 0,55
   Seaboat quality  (Average = 1.00): 1,04

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,547
   Length to Beam Ratio: 7,26 : 1
   'Natural speed' for length: 23,41 kts
   Power going to wave formation at top speed: 54 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 20,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      25,75 ft / 7,85 m
      - Forecastle (20 %):   16,37 ft / 4,99 m
      - Mid (50 %):      16,37 ft / 4,99 m
      - Quarterdeck (15 %):   16,37 ft / 4,99 m
      - Stern:      16,37 ft / 4,99 m
      - Average freeboard:   17,12 ft / 5,22 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 89,1 %
      - Above water (accommodation/working, high = better): 126,9 %
   Waterplane Area: 28.773 Square feet or 2.673 Square metres
   Displacement factor (Displacement / loading): 99 %
   Structure weight / hull surface area: 143 lbs/sq ft or 699 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,96
      - Longitudinal: 1,56
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent

[The Rock Doctor]

It's six capital guns on a fast, inexpensive hull.  However:

-I think the main battery needs heavier armor if there are to be just two turrets - 12" may be possible if you increase the ship size or decrease the deck armor ~0.5".

-Alternately, depending on how you imagine the ship will be used, keep the deck armor as it is, and increase the turret armor at the expense of belt thickness.

-The freeboard seems lower to me; given that the Baltic (and North Sea, and Arctic) has a reputation for crappy weather, I'd probably want it a half-metre or more higher.  However, this will cost you in turns of armor or speed or some other factor.

In your position, with a good-sized economy, I'd probably invest 20% more to get a more survivable ship out of it.

[ledeper]

Odin, Baltic Confederation  Ligth-Battle-Cruiser laid down 1912

Displacement:
   11.958 t light; 12.688 t standard; 13.700 t normal; 14.509 t full load

Dimensions: Length overall / water x beam x draught
   557,27 ft / 547,90 ft x 75,46 ft x 24,61 ft (normal load)
   169,86 m / 167,00 m x 23,00 m  x 7,50 m

Armament:
      6 - 12,00" / 305 mm guns (2x3 guns), 864,00lbs / 391,90kg shells, 1912 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread
      10 - 6,00" / 152 mm guns in single mounts, 108,00lbs / 48,99kg shells, 1912 Model
     Breech loading guns in deck mounts with hoists
     on side, all amidships
      10 - 4,00" / 102 mm guns in single mounts, 32,00lbs / 14,51kg shells, 1912 Model
     Breech loading guns in deck mounts
     on side, evenly spread
   Weight of broadside 6.584 lbs / 2.986 kg
   Shells per gun, main battery: 120

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   12,0" / 305 mm   6,00" / 152 mm      12,0" / 305 mm
   2nd:   1,00" / 25 mm         -               -
   3rd:   0,50" / 13 mm         -               -

   - Armour deck: 2,50" / 64 mm, Conning tower: 12,00" / 305 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 3 shafts, 57.033 shp / 42.546 Kw = 27,25 kts
   Range 5.000nm at 14,00 kts
   Bunker at max displacement = 1.821 tons

Complement:
   633 - 823

Cost:
   £1,428 million / $5,713 million

Distribution of weights at normal displacement:
   Armament: 823 tons, 6,0 %
   Armour: 2.465 tons, 18,0 %
      - Belts: 0 tons, 0,0 %
      - Torpedo bulkhead: 0 tons, 0,0 %
      - Armament: 1.075 tons, 7,8 %
      - Armour Deck: 1.242 tons, 9,1 %
      - Conning Tower: 148 tons, 1,1 %
   Machinery: 2.274 tons, 16,6 %
   Hull, fittings & equipment: 6.046 tons, 44,1 %
   Fuel, ammunition & stores: 1.742 tons, 12,7 %
   Miscellaneous weights: 350 tons, 2,6 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     13.614 lbs / 6.175 Kg = 15,8 x 12,0 " / 305 mm shells or 1,8 torpedoes
   Stability (Unstable if below 1.00): 1,11
   Metacentric height 4,0 ft / 1,2 m
   Roll period: 15,9 seconds
   Steadiness   - As gun platform (Average = 50 %): 56 %
         - Recoil effect (Restricted arc if above 1.00): 0,66
   Seaboat quality  (Average = 1.00): 1,11

Hull form characteristics:
   Hull has raised quarterdeck
   Block coefficient: 0,471
   Length to Beam Ratio: 7,26 : 1
   'Natural speed' for length: 23,41 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 20,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      25,75 ft / 7,85 m
      - Forecastle (20 %):   18,04 ft / 5,50 m
      - Mid (50 %):      18,04 ft / 5,50 m
      - Quarterdeck (15 %):   18,04 ft / 5,50 m (16,37 ft / 4,99 m before break)
      - Stern:      16,37 ft / 4,99 m
      - Average freeboard:   18,24 ft / 5,56 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 102,3 %
      - Above water (accommodation/working, high = better): 142,2 %
   Waterplane Area: 26.852 Square feet or 2.495 Square metres
   Displacement factor (Displacement / loading): 98 %
   Structure weight / hull surface area: 152 lbs/sq ft or 741 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,93
      - Longitudinal: 1,80
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent

[The Rock Doctor]

Er...I meant "decrease the belt thickness" as opposed to "get rid of the belt altogether"

[ledeper]

ups :) :D

[ledeper]

Odin, Baltic Confederation  Ligth-Battle-Cruiser laid down 1912

Displacement:
   15.409 t light; 16.213 t standard; 17.400 t normal; 18.350 t full load

Dimensions: Length overall / water x beam x draught
   557,27 ft / 547,90 ft x 75,46 ft x 24,61 ft (normal load)
   169,86 m / 167,00 m x 23,00 m  x 7,50 m

Armament:
      6 - 12,00" / 305 mm guns (2x3 guns), 864,00lbs / 391,90kg shells, 1912 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread
      10 - 6,00" / 152 mm guns in single mounts, 108,00lbs / 48,99kg shells, 1912 Model
     Breech loading guns in deck mounts with hoists
     on side, all amidships
      10 - 4,00" / 102 mm guns in single mounts, 32,00lbs / 14,51kg shells, 1912 Model
     Breech loading guns in deck mounts
     on side, evenly spread
   Weight of broadside 6.584 lbs / 2.986 kg
   Shells per gun, main battery: 120

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12,0" / 305 mm   356,14 ft / 108,55 m   10,42 ft / 3,18 m
   Ends:   Unarmoured
   Upper:   6,00" / 152 mm   356,14 ft / 108,55 m   8,00 ft / 2,44 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   12,0" / 305 mm   6,00" / 152 mm      12,0" / 305 mm
   2nd:   1,00" / 25 mm         -               -
   3rd:   0,50" / 13 mm         -               -

   - Armour deck: 2,50" / 64 mm, Conning tower: 12,00" / 305 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 4 shafts, 67.549 shp / 50.391 Kw = 27,00 kts
   Range 5.000nm at 14,00 kts
   Bunker at max displacement = 2.137 tons

Complement:
   756 - 984

Cost:
   £1,608 million / $6,431 million

Distribution of weights at normal displacement:
   Armament: 823 tons, 4,7 %
   Armour: 5.326 tons, 30,6 %
      - Belts: 2.657 tons, 15,3 %
      - Torpedo bulkhead: 0 tons, 0,0 %
      - Armament: 1.098 tons, 6,3 %
      - Armour Deck: 1.397 tons, 8,0 %
      - Conning Tower: 174 tons, 1,0 %
   Machinery: 2.693 tons, 15,5 %
   Hull, fittings & equipment: 6.217 tons, 35,7 %
   Fuel, ammunition & stores: 1.991 tons, 11,4 %
   Miscellaneous weights: 350 tons, 2,0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     19.589 lbs / 8.885 Kg = 22,7 x 12,0 " / 305 mm shells or 2,2 torpedoes
   Stability (Unstable if below 1.00): 1,12
   Metacentric height 4,1 ft / 1,2 m
   Roll period: 15,7 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0,59
   Seaboat quality  (Average = 1.00): 1,01

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,599
   Length to Beam Ratio: 7,26 : 1
   'Natural speed' for length: 23,41 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 20,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      25,75 ft / 7,85 m
      - Forecastle (20 %):   18,04 ft / 5,50 m
      - Mid (50 %):      18,04 ft / 5,50 m
      - Quarterdeck (15 %):   18,04 ft / 5,50 m
      - Stern:      18,04 ft / 5,50 m
      - Average freeboard:   18,66 ft / 5,69 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 88,7 %
      - Above water (accommodation/working, high = better): 137,3 %
   Waterplane Area: 30.200 Square feet or 2.806 Square metres
   Displacement factor (Displacement / loading): 99 %
   Structure weight / hull surface area: 142 lbs/sq ft or 692 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,94
      - Longitudinal: 1,59
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent

[The Rock Doctor]

That's an improvement...

[P3D]

Is this a ship that BC would be building instead of those most needed destroyers? :P

[ledeper]

Nope is for sale to use yard-capacity

[Korpen]

Nope is for sale to use yard-capacity

Why not use that capacity yourself? After all you are desperatly short of small crafts and support ships.

[Ithekro]

Perhaps a lack of money, but excess production ability?