A Baltic "Hood"

[ledeper]

Should I jump the Battlecruiser game?

Battlecruiser study, BCS BC laid down 1921

Displacement:
   36.697 t light; 38.384 t standard; 41.154 t normal; 43.370 t full load

Dimensions: Length overall / water x beam x draught
   817,70 ft / 813,65 ft x 114,83 ft x 30,35 ft (normal load)
   249,23 m / 248,00 m x 35,00 m  x 9,25 m

Armament:
      8 - 14,96" / 380 mm guns (4x2 guns), 1.674,25lbs / 759,43kg shells, 1921 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      10 - 4,92" / 125 mm guns in single mounts, 59,59lbs / 27,03kg shells, 1921 Model
     Quick firing guns in deck mounts
     on side, all amidships
      8 - 1,57" / 40,0 mm guns in single mounts, 1,95lbs / 0,89kg shells, 1921 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 14.006 lbs / 6.353 kg
   Shells per gun, main battery: 110

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   11,8" / 300 mm   500,66 ft / 152,60 m   15,03 ft / 4,58 m
   Ends:   Unarmoured
   Upper:   5,91" / 150 mm   536,42 ft / 163,50 m   8,01 ft / 2,44 m
     Main Belt covers 95 % of normal length

   - Torpedo Bulkhead:
      1,97" / 50 mm   536,42 ft / 163,50 m   29,53 ft / 9,00 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11,8" / 300 mm   5,91" / 150 mm      11,8" / 300 mm
   2nd:   0,39" / 10 mm         -               -
   3rd:   0,20" / 5 mm         -               -

   - Armour deck: 3,94" / 100 mm, Conning tower: 9,84" / 250 mm

Machinery:
   Oil fired boilers, steam turbines plus diesel motors,
   Electric cruising motors plus geared drives, 4 shafts, 145.850 shp / 108.804 Kw = 30,00 kts
   Range 9.500nm at 14,00 kts
   Bunker at max displacement = 4.986 tons

Complement:
   1.444 - 1.878

Cost:
   £8,802 million / $35,210 million

Distribution of weights at normal displacement:
   Armament: 1.751 tons, 4,3 %
   Armour: 13.471 tons, 32,7 %
      - Belts: 4.953 tons, 12,0 %
      - Torpedo bulkhead: 1.154 tons, 2,8 %
      - Armament: 2.544 tons, 6,2 %
      - Armour Deck: 4.567 tons, 11,1 %
      - Conning Tower: 253 tons, 0,6 %
   Machinery: 5.022 tons, 12,2 %
   Hull, fittings & equipment: 16.103 tons, 39,1 %
   Fuel, ammunition & stores: 4.457 tons, 10,8 %
   Miscellaneous weights: 350 tons, 0,9 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     55.087 lbs / 24.987 Kg = 32,9 x 15,0 " / 380 mm shells or 9,2 torpedoes
   Stability (Unstable if below 1.00): 1,10
   Metacentric height 7,4 ft / 2,2 m
   Roll period: 17,8 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,40
   Seaboat quality  (Average = 1.00): 1,05

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,508
   Length to Beam Ratio: 7,09 : 1
   'Natural speed' for length: 28,52 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 67
   Bow angle (Positive = bow angles forward): 10,00 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 (10 %):   19,98 ft / 6,09 m
      - Mid (70 %):      19,98 ft / 6,09 m
      - Quarterdeck (15 %):   19,98 ft / 6,09 m
      - Stern:      19,98 ft / 6,09 m
      - Average freeboard:   20,10 ft / 6,13 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 88,6 %
      - Above water (accommodation/working, high = better): 165,3 %
   Waterplane Area: 62.707 Square feet or 5.826 Square metres
   Displacement factor (Displacement / loading): 109 %
   Structure weight / hull surface area: 195 lbs/sq ft or 953 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1,00
      - Longitudinal: 1,03
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform

[ctwaterman]

Interesting more speed smaller guns Its a nice Battle Cruiser but isnt it a bit large for all ships under 35,000 Tons...??????

The Treaty most nations atleast sort of agreed to was 2 ships up to 40,000K Tons and the others 35,000 Tons and under....?????

I know I will have to rebuild my HMS Nelson and HMS Hood to put the 1917+ Engine Tech in them well right after they finish if I want 30 Knots.

Charles

[mentat]

  It's a nice Hood  :)

- any chance of a pic .....

few queries though:

Long range for Baltic

Armour - ? increase MB thickness vs UB - depending on the likely opposition

Sec Arm't - needs better face armour - 10mm barely enough to stop a machine gun bullet

  and 5mm for the 40mm s - even less useful

   A few more Sec guns possible ?? - Baltic lots of Light ships to fend off ....

[ledeper]

With a bit of tweaking it could be like this,although I would prefer to "optimize" the Panzer schiffe:

Battlecruiser study, BCS BC laid down 1921

Displacement:
   35.202 t light; 36.851 t standard; 39.264 t normal; 41.194 t full load

Dimensions: Length overall / water x beam x draught
   784,89 ft / 780,84 ft x 118,11 ft x 30,35 ft (normal load)
   239,23 m / 238,00 m x 36,00 m  x 9,25 m

Armament:
      8 - 14,96" / 380 mm guns (4x2 guns), 1.674,25lbs / 759,43kg shells, 1921 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      10 - 4,92" / 125 mm guns in single mounts, 59,59lbs / 27,03kg shells, 1921 Model
     Quick firing guns in deck mounts
     on side, all amidships
      8 - 1,57" / 40,0 mm guns in single mounts, 1,95lbs / 0,88kg shells, 1921 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 14.006 lbs / 6.353 kg
   Shells per gun, main battery: 110

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   11,8" / 300 mm   467,85 ft / 142,60 m   15,03 ft / 4,58 m
   Ends:   Unarmoured
   Upper:   4,72" / 120 mm   536,42 ft / 163,50 m   8,01 ft / 2,44 m
     Main Belt covers 92 % of normal length

   - Torpedo Bulkhead:
      1,97" / 50 mm   536,42 ft / 163,50 m   29,53 ft / 9,00 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11,8" / 300 mm   4,72" / 120 mm      11,8" / 300 mm
   2nd:   0,39" / 10 mm         -               -
   3rd:   0,20" / 5 mm         -               -

   - Armour deck: 3,94" / 100 mm, Conning tower: 9,84" / 250 mm

Machinery:
   Oil fired boilers, steam turbines plus diesel motors,
   Electric cruising motors plus geared drives, 4 shafts, 130.224 shp / 97.147 Kw = 29,25 kts
   Range 8.500nm at 14,00 kts
   Bunker at max displacement = 4.343 tons

Complement:
   1.394 - 1.813

Cost:
   £8,477 million / $33,910 million

Distribution of weights at normal displacement:
   Armament: 1.751 tons, 4,5 %
   Armour: 12.796 tons, 32,6 %
      - Belts: 4.525 tons, 11,5 %
      - Torpedo bulkhead: 1.154 tons, 2,9 %
      - Armament: 2.434 tons, 6,2 %
      - Armour Deck: 4.439 tons, 11,3 %
      - Conning Tower: 245 tons, 0,6 %
   Machinery: 4.484 tons, 11,4 %
   Hull, fittings & equipment: 15.671 tons, 39,9 %
   Fuel, ammunition & stores: 4.062 tons, 10,3 %
   Miscellaneous weights: 500 tons, 1,3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     53.216 lbs / 24.138 Kg = 31,8 x 15,0 " / 380 mm shells or 9,4 torpedoes
   Stability (Unstable if below 1.00): 1,10
   Metacentric height 7,8 ft / 2,4 m
   Roll period: 17,8 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,37
   Seaboat quality  (Average = 1.00): 1,05

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,491
   Length to Beam Ratio: 6,61 : 1
   'Natural speed' for length: 27,94 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 67
   Bow angle (Positive = bow angles forward): 10,00 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 (10 %):   19,69 ft / 6,00 m
      - Mid (70 %):      19,69 ft / 6,00 m
      - Quarterdeck (15 %):   19,69 ft / 6,00 m
      - Stern:      19,69 ft / 6,00 m
      - Average freeboard:   19,82 ft / 6,04 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 87,4 %
      - Above water (accommodation/working, high = better): 163,9 %
   Waterplane Area: 60.949 Square feet or 5.662 Square metres
   Displacement factor (Displacement / loading): 108 %
   Structure weight / hull surface area: 198 lbs/sq ft or 966 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,99
      - Longitudinal: 1,13
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform

[Kaiser Kirk]

I think the secondary armanent- 5 guns each side, is very light. Especially given the DD charges of the Rift war. Perhaps the thought is the ships speed proofs it against that- except if it's not worked up to speed, or it's night, or the DDs are faster, or it's pinned near a shoreline/shallows- such as the Baltic or DEI.

Likewise, for a ship 238m long, a few more AA mounts could be worked in. Considering warships have been harrassed and sunk, that may be defensible. Further- in this time period you see a lot of 75mm QF AA mounted as the aerial targets were perceived to be slow and lumbering.

Ship is built to fight at very long ranges- which is starting to be within FC reason, but has few main battery rounds. Further at those ranges, the upper belt is thicker than needed vs. 6" but may not be thick enough vs. 8-10", so it could be slimmed. 

I suppose I should note that with the fogs on the North Sea and Baltic, the Germans at least expected much shorter visual engagement ranges, at which time the main belt & barbette thickness may be seen as a liability. The same applies in foul weather, near islands, or at night.

I actually don't mind the 5mm shields on the AA, as I view that as sheet metal to stop the spray. Likewise I view 10mm of armor plate as anti-strafing.

I dislike the BC- at 0.491 it is very unbattleship-like, very bulbous midbody and fine ends. Given the large beam, I assume an issue with the barbettes+standoff + TDS, but somebody else might.