Possible future BB

[Sachmle]

Ersatz Kurfürst Friedrich Wilhelm, Brandenburg Schlachtschiff laid down 1923

Displacement:
   35,000 t light; 36,792 t standard; 39,847 t normal; 42,291 t full load

Dimensions: Length overall / water x beam x draught
   721.78 ft / 705.38 ft x 104.99 ft x 31.17 ft (normal load)
   220.00 m / 215.00 m x 32.00 m  x 9.50 m

Armament:
      8 - 16.54" / 420 mm guns (4x2 guns), 2,259.74lbs / 1,025.00kg shells, 1923 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      16 - 5.12" / 130 mm guns (8x2 guns), 66.14lbs / 30.00kg shells, 1918 Model
     Quick firing guns in deck mounts with hoists
     on side, all amidships, 4 raised mounts - superfiring
      4 - 3.46" / 88.0 mm guns in single mounts, 22.05lbs / 10.00kg shells, 1922 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
      6 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1922 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
      8 - 0.59" / 15.0 mm guns in single mounts, 0.10lbs / 0.05kg shells, 1922 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 19,234 lbs / 8,725 kg
   Shells per gun, main battery: 92
   5 - 23.6" / 600 mm submerged torpedo tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13.8" / 350 mm   458.50 ft / 139.75 m   16.40 ft / 5.00 m
   Ends:   3.94" / 100 mm   246.88 ft / 75.25 m   9.84 ft / 3.00 m
   Upper:   9.06" / 230 mm   458.50 ft / 139.75 m   8.20 ft / 2.50 m
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead:
      2.36" / 60 mm   458.50 ft / 139.75 m   39.37 ft / 12.00 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   15.0" / 380 mm   9.06" / 230 mm      13.8" / 350 mm
   2nd:   1.97" / 50 mm   0.98" / 25 mm      1.97" / 50 mm

   - Armour deck: 3.94" / 100 mm, Conning tower: 13.78" / 350 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 66,000 shp / 49,236 Kw = 24.04 kts
   Range 9,500nm at 15.00 kts
   Bunker at max displacement = 5,499 tons

Complement:
   1,409 - 1,833

Cost:
   £10.342 million / $41.368 million

Distribution of weights at normal displacement:
   Armament: 2,406 tons, 6.0 %
   Armour: 15,450 tons, 38.8 %
      - Belts: 6,349 tons, 15.9 %
      - Torpedo bulkhead: 1,578 tons, 4.0 %
      - Armament: 3,216 tons, 8.1 %
      - Armour Deck: 3,961 tons, 9.9 %
      - Conning Tower: 346 tons, 0.9 %
   Machinery: 2,206 tons, 5.5 %
   Hull, fittings & equipment: 14,537 tons, 36.5 %
   Fuel, ammunition & stores: 4,847 tons, 12.2 %
   Miscellaneous weights: 400 tons, 1.0 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     51,278 lbs / 23,259 Kg = 22.7 x 16.5 " / 420 mm shells or 9.4 torpedoes
   Stability (Unstable if below 1.00): 1.10
   Metacentric height 6.4 ft / 2.0 m
   Roll period: 17.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 55 %
         - Recoil effect (Restricted arc if above 1.00): 0.55
   Seaboat quality  (Average = 1.00): 1.11

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.604
   Length to Beam Ratio: 6.72 : 1
   'Natural speed' for length: 26.56 kts
   Power going to wave formation at top speed: 45 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 23.80 degrees
   Stern overhang: 6.56 ft / 2.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      22.31 ft / 6.80 m
      - Forecastle (14 %):   16.40 ft / 5.00 m
      - Mid (50 %):      16.40 ft / 5.00 m
      - Quarterdeck (14 %):   16.40 ft / 5.00 m
      - Stern:      16.40 ft / 5.00 m
      - Average freeboard:   16.73 ft / 5.10 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 82.5 %
      - Above water (accommodation/working, high = better): 120.6 %
   Waterplane Area: 54,377 Square feet or 5,052 Square metres
   Displacement factor (Displacement / loading): 101 %
   Structure weight / hull surface area: 203 lbs/sq ft or 993 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.99
      - Longitudinal: 1.08
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is excellent

250t = 1918 Fire Control
45t = 15 3t 1918 60cm torpedoes
25t = 1915 Refined "Huelsmeyer"
25t = 1912 Night Fighting Gear (Starshells for the 13cm guns and extra searchlights)
25t = Crane and catapult for floatplane
5t = 1 Floatplane (Similar size to Friedrichshafen FF.41)
25t = Reserve Weight