Byzantine Empire 1936 - 1940

[Jefgte]

Update BC9-45500t-3T3x457, always compact hull, with better armor.

BC11, Byzantine Empire BC11 laid down 1938

Displacement:
    48 000 t light; 51 220 t standard; 54 159 t normal; 56 510 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
    (738,21 ft / 735,56 ft) x 122,54 ft x (32,45 / 33,65 ft)
    (225,00 m / 224,20 m) x 37,35 m  x (9,89 / 10,26 m)

Armament:
      9 - 17,99" / 457 mm 40,0 cal guns - 3 320,01lbs / 1 505,93kg shells, 100 per gun
      Breech loading guns in turret on barbette mounts, 1938 Model
      3 x 3-gun mounts on centreline ends, majority forward
        1 raised mount - superfiring
      20 - 5,24" / 133 mm 50,0 cal guns - 80,01lbs / 36,29kg shells, 340 per gun
      Dual purpose guns in deck and hoist mounts, 1938 Model
      10 x 2-gun mounts on sides, evenly spread
        4 raised mounts
      36 - 1,57" / 40,0 mm 39,0 cal guns - 2,01lbs / 0,91kg shells, 4 000 per gun
      Anti-air guns in deck mounts, 1938 Model
      18 x 2-gun mounts on sides, evenly spread
        18 raised mounts
      36 - 0,50" / 12,7 mm 62,0 cal guns - 0,07lbs / 0,03kg shells, 10 000 per gun
      Machine guns in deck mounts, 1938 Model
      18 x 2-gun mounts on sides, evenly spread
        18 raised mounts
      Weight of broadside 31 555 lbs / 14 313 kg

Armour:
  - Belts:        Width (max)    Length (avg)        Height (avg)
    Main:    14,2" / 360 mm    485,47 ft / 147,97 m    14,90 ft / 4,54 m
    Ends:    3,94" / 100 mm    250,07 ft / 76,22 m    9,97 ft / 3,04 m
    Upper:    3,94" / 100 mm    485,47 ft / 147,97 m    8,01 ft / 2,44 m
      Main Belt covers 102 % of normal length

  - Torpedo Bulkhead - Strengthened structural bulkheads:
        1,97" / 50 mm    485,47 ft / 147,97 m    30,77 ft / 9,38 m
    Beam between torpedo bulkheads 93,01 ft / 28,35 m

  - Gun armour:    Face (max)    Other gunhouse (avg)    Barbette/hoist (max)
    Main:    15,7" / 400 mm    7,87" / 200 mm        14,2" / 360 mm
    3rd:    0,39" / 10 mm          -                  -
    4th:    0,39" / 10 mm          -                  -
    5th:    0,39" / 10 mm          -                  -

  - Armoured deck - multiple decks:
    For and Aft decks: 7,09" / 180 mm
    Forecastle: 3,94" / 100 mm  Quarter deck: 5,51" / 140 mm

  - Conning towers: Forward 14,17" / 360 mm, Aft 5,91" / 150 mm

Machinery:
    Oil fired boilers, steam turbines,
    Direct drive, 4 shafts, 128 014 shp / 95 498 Kw = 27,00 kts
    Range 14 000nm at 12,00 kts
    Bunker at max displacement = 5 290 tons

Complement:
    1 774 - 2 307

Cost:
    £24,891 million / $99,564 million

Distribution of weights at normal displacement:
    Armament: 4 693 tons, 8,7 %
      - Guns: 4 693 tons, 8,7 %
    Armour: 19 908 tons, 36,8 %
      - Belts: 5 575 tons, 10,3 %
      - Torpedo bulkhead: 1 088 tons, 2,0 %
      - Armament: 4 038 tons, 7,5 %
      - Armour Deck: 8 587 tons, 15,9 %
      - Conning Towers: 619 tons, 1,1 %
    Machinery: 3 505 tons, 6,5 %
    Hull, fittings & equipment: 18 820 tons, 34,8 %
    Fuel, ammunition & stores: 6 159 tons, 11,4 %
    Miscellaneous weights: 1 074 tons, 2,0 %
      - Hull below water: 240 tons
      - Hull above water: 25 tons
      - On freeboard deck: 260 tons
      - Above deck: 549 tons

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      82 049 lbs / 37 217 Kg = 28,2 x 18,0 " / 457 mm shells or 14,5 torpedoes
    Stability (Unstable if below 1.00): 1,10
    Metacentric height 8,1 ft / 2,5 m
    Roll period: 18,1 seconds
    Steadiness    - As gun platform (Average = 50 %): 71 %
            - Recoil effect (Restricted arc if above 1.00): 0,74
    Seaboat quality  (Average = 1.00): 1,04

Hull form characteristics:
    Hull has a flush deck,
      a normal bow and a cruiser stern
    Block coefficient (normal/deep): 0,648 / 0,652
    Length to Beam Ratio: 6,00 : 1
    'Natural speed' for length: 27,12 kts
    Power going to wave formation at top speed: 53 %
    Trim (Max stability = 0, Max steadiness = 100): 68
    Bow angle (Positive = bow angles forward): 5,00 degrees
    Stern overhang: 0,00 ft / 0,00 m
    Freeboard (% = length of deck as a percentage of waterline length):
                Fore end,    Aft end
      - Forecastle:    17,50 %,  30,18 ft / 9,20 m,  25,26 ft / 7,70 m
      - Forward deck:    33,00 %,  25,26 ft / 7,70 m,  20,34 ft / 6,20 m
      - Aft deck:    33,00 %,  20,34 ft / 6,20 m,  19,36 ft / 5,90 m
      - Quarter deck:    16,50 %,  19,36 ft / 5,90 m,  19,36 ft / 5,90 m
      - Average freeboard:        22,03 ft / 6,72 m

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 80,5 %
        - Above water (accommodation/working, high = better): 157,1 %
    Waterplane Area: 68 923 Square feet or 6 403 Square metres
    Displacement factor (Displacement / loading): 110 %
    Structure weight / hull surface area: 245 lbs/sq ft or 1 197 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0,95
        - Longitudinal: 1,47
        - Overall: 1,00
    Excellent machinery, storage, compartmentation space
    Excellent accommodation and workspace room
    Ship has slow, easy roll, a good, steady gun platform

AD
469t for Top fire control
50t for 2x25t Marconi
30t for Hulesmeyer
OD
30t for 1 scoutplanes + cata
40t for night fighting
100t for Admiral ship
90t reserved
AW
climatisation
25t for enhanced hydrophone
BW
240t for extra pumps installation

[Kaiser Kirk]

I looked at battlewagons in that size range, almost went with the 45,000t 8x435mm.
Adds 2 HY to the build time, but average cost is slightly less to go to 54,000.

How is the 180mm multiple decks arranged?
I see an 100mm upper belt, is there a 40mm splinter deck over 140mm main deck arrangement?

You have large amounts of misc weight, as we all do these days.

Curious such a big ship has 1 AC, and 30t instead of 25?
Likewise, Enhanced Hydrophones are 15tons.

As typical you allocated a tremendous amount to pumps in addition to the standard ones.

Ironically, I try to keep draft below the Real-life WWII limit for Suez, despite Snip eliminating that, and Parthian warships not expecting to rely on Suez. So there is no reason for me to stick at 9.6 so often.

[Jefgte]

...How is the 180mm multiple decks arranged?
I see an 100mm upper belt, is there a 40mm splinter deck over 140mm main deck arrangement?...

        100-40-40-40-40 splinter/decaping deck
        100
        100
        360-140-140-140 armored deck
WL__360
        360
        200
        100

[Jefgte]

Improvement of Mlle 1935's CV.
25,000t => 27,000t

CV  mlle 1938, Byzantine Empire Aircraft Carrier-70 aircrafts laid down 1938

Displacement:
    27 000 t light; 27 987 t standard; 31 016 t normal; 33 439 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
    (738,04 ft / 734,91 ft) x 100,62 ft x (27,44 / 29,11 ft)
    (224,96 m / 224,00 m) x 30,67 m  x (8,36 / 8,87 m)

Armament:
      16 - 4,49" / 114 mm 45,0 cal guns - 58,00lbs / 26,31kg shells, 350 per gun
      Dual purpose guns in deck mounts, 1938 Model
      8 x 2-gun mounts on side ends, evenly spread
        8 raised mounts
      40 - 1,57" / 40,0 mm 39,0 cal guns - 2,01lbs / 0,91kg shells, 4 000 per gun
      Anti-air guns in deck mounts, 1938 Model
      20 x 2-gun mounts on sides, evenly spread
        12 raised mounts
      24 - 0,50" / 12,7 mm 62,0 cal guns - 0,07lbs / 0,03kg shells, 10 000 per gun
      Machine guns in deck mounts, 1938 Model
      12 x 2-gun mounts on sides, evenly spread
        12 raised mounts
      Weight of broadside 1 010 lbs / 458 kg

Armour:
  - Belts:        Width (max)    Length (avg)        Height (avg)
    Main:    3,15" / 80 mm    507,09 ft / 154,56 m    13,91 ft / 4,24 m
    Ends:    1,38" / 35 mm    227,79 ft / 69,43 m    10,63 ft / 3,24 m
    Upper:    1,38" / 35 mm    507,09 ft / 154,56 m    8,01 ft / 2,44 m
      Main Belt covers 106 % of normal length

  - Torpedo Bulkhead - Strengthened structural bulkheads:
        1,97" / 50 mm    507,09 ft / 154,56 m    24,67 ft / 7,52 m
    Beam between torpedo bulkheads 74,38 ft / 22,67 m

  - Gun armour:    Face (max)    Other gunhouse (avg)    Barbette/hoist (max)
    2nd:    0,39" / 10 mm          -                  -
    3rd:    0,24" / 6 mm          -                  -
    4th:    0,24" / 6 mm          -                  -

  - Armoured deck - multiple decks:
    For and Aft decks: 4,33" / 110 mm
    Forecastle: 1,38" / 35 mm  Quarter deck: 1,38" / 35 mm

  - Conning towers: Forward 1,18" / 30 mm, Aft 0,00" / 0 mm

Machinery:
    Oil fired boilers, steam turbines,
    Geared drive, 4 shafts, 128 015 shp / 95 499 Kw = 30,00 kts
    Range 15 000nm at 14,00 kts
    Bunker at max displacement = 5 451 tons

Complement:
    1 168 - 1 519

Cost:
    £8,316 million / $33,263 million

Distribution of weights at normal displacement:
    Armament: 156 tons, 0,5 %
      - Guns: 156 tons, 0,5 %
    Armour: 5 910 tons, 19,1 %
      - Belts: 1 294 tons, 4,2 %
      - Torpedo bulkhead: 911 tons, 2,9 %
      - Armament: 18 tons, 0,1 %
      - Armour Deck: 3 662 tons, 11,8 %
      - Conning Tower: 25 tons, 0,1 %
    Machinery: 3 505 tons, 11,3 %
    Hull, fittings & equipment: 9 773 tons, 31,5 %
    Fuel, ammunition & stores: 4 016 tons, 12,9 %
    Miscellaneous weights: 7 655 tons, 24,7 %
      - Hull below water: 3 865 tons
      - Hull above water: 3 555 tons
      - On freeboard deck: 170 tons
      - Above deck: 65 tons

Overall survivability and seakeeping ability:
    Survivability (Non-critical penetrating hits needed to sink ship):
      78 437 lbs / 35 578 Kg = 726,3 x 6 " / 152 mm shells or 10,9 torpedoes
    Stability (Unstable if below 1.00): 1,38
    Metacentric height 8,9 ft / 2,7 m
    Roll period: 14,2 seconds
    Steadiness    - As gun platform (Average = 50 %): 96 %
            - Recoil effect (Restricted arc if above 1.00): 0,05
    Seaboat quality  (Average = 1.00): 2,00

Hull form characteristics:
    Hull has low forecastle,
      a normal bow and a cruiser stern
    Block coefficient (normal/deep): 0,535 / 0,544
    Length to Beam Ratio: 7,30 : 1
    'Natural speed' for length: 27,11 kts
    Power going to wave formation at top speed: 53 %
    Trim (Max stability = 0, Max steadiness = 100): 48
    Bow angle (Positive = bow angles forward): 6,00 degrees
    Stern overhang: 0,00 ft / 0,00 m
    Freeboard (% = length of deck as a percentage of waterline length):
                Fore end,    Aft end
      - Forecastle:    16,00 %,  29,82 ft / 9,09 m,  24,41 ft / 7,44 m
      - Forward deck:    34,50 %,  39,37 ft / 12,00 m,  39,37 ft / 12,00 m
      - Aft deck:    34,50 %,  39,37 ft / 12,00 m,  39,37 ft / 12,00 m
      - Quarter deck:    15,00 %,  39,37 ft / 12,00 m,  39,37 ft / 12,00 m
      - Average freeboard:        37,32 ft / 11,38 m

Ship space, strength and comments:
    Space    - Hull below water (magazines/engines, low = better): 89,2 %
        - Above water (accommodation/working, high = better): 326,7 %
    Waterplane Area: 50 889 Square feet or 4 728 Square metres
    Displacement factor (Displacement / loading): 148 %
    Structure weight / hull surface area: 130 lbs/sq ft or 635 Kg/sq metre
    Hull strength (Relative):
        - Cross-sectional: 0,90
        - Longitudinal: 2,57
        - Overall: 1,00
    Adequate machinery, storage, compartmentation space
    Excellent accommodation and workspace room
    Ship has slow, easy roll, a good, steady gun platform
    Excellent seaboat, comfortable, can fire her guns in the heaviest weather

misc weight: 6980t
AD
25t for LR Marconi
15t for 1930 fire control
25t for Hulsmeyer
OD
20t for 2 cata
50t for Fire Fighting
100t for Admiral staff
HAW
3325t for 35 aircrafts-1934
70t for enhanced climatisation
50t for Fire Fighting
30t for 3 x Fire Wall
40t for aircrafts spare parts
40t reserved for materials
HBW
3325t for 35 aircrafts-1934
70t for enhanced ventilation
50t for Fire Fighting
30t for 3 x Fire Wall
40t for aircrafts spares parts
15t for enhanced Hydrophone
40t reserved for  material...
200t for additionnal pumps

Like all large vessels, the CVs are equipped with a reinforced drainage circuit and additional pumps.

[Jefgte]

Update the 48000t BB to 47500t& 9,6m draught
Multiple decks 175mm was 180mm


BBC11 - BC12, Byzantine Empire BC laid down 1938

Displacement:
   47 500 t light; 50 577 t standard; 53 509 t normal; 55 854 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (738,20 ft / 736,09 ft) x 124,67 ft x (31,49 / 32,66 ft)
   (225,00 m / 224,36 m) x 38,00 m  x (9,60 / 9,96 m)

Armament:
      9 - 17,99" / 457 mm 40,0 cal guns - 3 320,01lbs / 1 505,93kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1938 Model
     3 x 3-gun mounts on centreline ends, majority forward
      1 raised mount - superfiring
      16 - 5,24" / 133 mm 50,0 cal guns - 80,01lbs / 36,29kg shells, 300 per gun
     Dual purpose guns in deck and hoist mounts, 1938 Model
     8 x 2-gun mounts on sides, evenly spread
      28 - 1,57" / 40,0 mm 39,0 cal guns - 2,01lbs / 0,91kg shells, 4 000 per gun
     Anti-air guns in deck mounts, 1938 Model
     14 x 2-gun mounts on sides, evenly spread
      12 raised mounts
      24 - 0,50" / 12,7 mm 62,0 cal guns - 0,07lbs / 0,03kg shells, 10 000 per gun
     Machine guns in deck mounts, 1938 Model
     12 x 2-gun mounts on sides, evenly spread
      8 raised mounts
      Weight of broadside 31 218 lbs / 14 160 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   14,2" / 360 mm   478,44 ft / 145,83 m   13,58 ft / 4,14 m
   Ends:   3,94" / 100 mm   257,61 ft / 78,52 m   12,60 ft / 3,84 m
   Upper:   3,94" / 100 mm   478,44 ft / 145,83 m   8,01 ft / 2,44 m
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead - Strengthened structural bulkheads:
      1,97" / 50 mm   478,44 ft / 145,83 m   30,22 ft / 9,21 m
   Beam between torpedo bulkheads 98,56 ft / 30,04 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   15,0" / 380 mm   6,89" / 175 mm      14,2" / 360 mm
   2nd:   1,18" / 30 mm   0,79" / 20 mm      0,79" / 20 mm
   4th:   0,39" / 10 mm         -               -
   5th:   0,39" / 10 mm         -               -

   - Armoured deck - multiple decks:
   For and Aft decks: 6,89" / 175 mm
   Forecastle: 3,94" / 100 mm  Quarter deck: 5,51" / 140 mm

   - Conning towers: Forward 14,17" / 360 mm, Aft 5,91" / 150 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 127 725 shp / 95 283 Kw = 27,00 kts
   Range 14 000nm at 12,00 kts
   Bunker at max displacement = 5 277 tons

Complement:
   1 758 - 2 286

Cost:
   £24,599 million / $98,395 million

Distribution of weights at normal displacement:
   Armament: 4 592 tons, 8,6 %
      - Guns: 4 592 tons, 8,6 %
   Armour: 19 333 tons, 36,1 %
      - Belts: 5 246 tons, 9,8 %
      - Torpedo bulkhead: 1 053 tons, 2,0 %
      - Armament: 3 903 tons, 7,3 %
      - Armour Deck: 8 517 tons, 15,9 %
      - Conning Towers: 614 tons, 1,1 %
   Machinery: 3 497 tons, 6,5 %
   Hull, fittings & equipment: 19 019 tons, 35,5 %
   Fuel, ammunition & stores: 6 009 tons, 11,2 %
   Miscellaneous weights: 1 059 tons, 2,0 %
      - Hull below water: 230 tons
      - Hull above water: 25 tons
      - On freeboard deck: 270 tons
      - Above deck: 534 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     82 606 lbs / 37 469 Kg = 28,4 x 18,0 " / 457 mm shells or 14,8 torpedoes
   Stability (Unstable if below 1.00): 1,12
   Metacentric height 8,7 ft / 2,6 m
   Roll period: 17,8 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,66
   Seaboat quality  (Average = 1.00): 1,01

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0,648 / 0,652
   Length to Beam Ratio: 5,90 : 1
   'Natural speed' for length: 27,13 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   Bow angle (Positive = bow angles forward): 4,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   17,50 %,  30,18 ft / 9,20 m,  24,61 ft / 7,50 m
      - Forward deck:   32,50 %,  24,61 ft / 7,50 m,  19,52 ft / 5,95 m
      - Aft deck:   32,50 %,  19,52 ft / 5,95 m,  19,52 ft / 5,95 m
      - Quarter deck:   17,50 %,  19,52 ft / 5,95 m,  19,52 ft / 5,95 m
      - Average freeboard:      21,63 ft / 6,59 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 77,2 %
      - Above water (accommodation/working, high = better): 157,4 %
   Waterplane Area: 70 172 Square feet or 6 519 Square metres
   Displacement factor (Displacement / loading): 110 %
   Structure weight / hull surface area: 246 lbs/sq ft or 1 199 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,96
      - Longitudinal: 1,43
      - Overall: 1,00
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

AD
459t for Top fire control
50t for 2x25t Marconi
25t for Hulesmeyer
OD
50t for 2 scoutplanes + cata
40t for night fighting
100t for admiral ship
80 reserved
AW
Climatisation
25t for enhanced hydrophone
BW
230t for extra pumps installation