Byzantine Empire 1933-34

[Jefgte]

Testing another one with 4T2x234/51 - 10 000t

10 000t AC, Byzantine Empire 4T2x234 laid down 1933


Displacement:
   10 000 t light; 10 603 t standard; 11 625 t normal; 12 443 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (622,62 ft / 616,80 ft) x 66,34 ft x (20,38 / 21,44 ft)
   (189,77 m / 188,00 m) x 20,22 m  x (6,21 / 6,53 m)

Armament:
      8 - 9,21" / 234 mm 51,0 cal guns - 390,99lbs / 177,35kg shells, 125 per gun
     Breech loading guns in deck and hoist mounts, 1933 Model
     4 x 2-gun mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
      12 - 4,49" / 114 mm 45,0 cal guns - 58,00lbs / 26,31kg shells, 300 per gun
     Dual purpose guns in deck and hoist mounts, 1933 Model
     6 x 2-gun mounts on sides, evenly spread
      16 - 1,57" / 40,0 mm 39,0 cal guns - 2,01lbs / 0,91kg shells, 2 000 per gun
     Quick firing guns in deck mounts, 1933 Model
     8 x 2-gun mounts on sides, evenly spread
      8 raised mounts
      16 - 0,50" / 12,7 mm 62,0 cal guns - 0,07lbs / 0,03kg shells, 4 000 per gun
     Machine guns in deck mounts, 1933 Model
     8 x 2-gun mounts on side ends, evenly spread
      8 raised mounts
      Weight of broadside 3 857 lbs / 1 750 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   4,72" / 120 mm   422,51 ft / 128,78 m   9,78 ft / 2,98 m
   Ends:   1,18" / 30 mm   194,26 ft / 59,21 m   9,78 ft / 2,98 m
     Main Belt covers 105 % of normal length

   - Torpedo Bulkhead - Strengthened structural bulkheads:
      1,57" / 40 mm   422,51 ft / 128,78 m   17,68 ft / 5,39 m
   Beam between torpedo bulkheads 57,48 ft / 17,52 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   7,09" / 180 mm   2,36" / 60 mm      4,72" / 120 mm
   2nd:   0,39" / 10 mm         -               -
   4th:   0,24" / 6 mm         -               -
   5th:   0,24" / 6 mm         -               -

   - Protected deck - single deck:
   For and Aft decks: 1,97" / 50 mm
   Forecastle: 1,18" / 30 mm  Quarter deck: 1,57" / 40 mm

   - Conning towers: Forward 4,72" / 120 mm, Aft 2,76" / 70 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 70 704 shp / 52 745 Kw = 30,00 kts
   Range 12 000nm at 12,00 kts
   Bunker at max displacement = 1 839 tons

Complement:
   559 - 727

Cost:
   £4,943 million / $19,773 million

Distribution of weights at normal displacement:
   Armament: 1 143 tons, 9,8 %
      - Guns: 1 143 tons, 9,8 %
   Armour: 2 528 tons, 21,7 %
      - Belts: 882 tons, 7,6 %
      - Torpedo bulkhead: 435 tons, 3,7 %
      - Armament: 183 tons, 1,6 %
      - Armour Deck: 945 tons, 8,1 %
      - Conning Towers: 83 tons, 0,7 %
   Machinery: 2 060 tons, 17,7 %
   Hull, fittings & equipment: 3 963 tons, 34,1 %
   Fuel, ammunition & stores: 1 626 tons, 14,0 %
   Miscellaneous weights: 306 tons, 2,6 %
      - Hull below water: 40 tons
      - On freeboard deck: 127 tons
      - Above deck: 139 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     14 403 lbs / 6 533 Kg = 36,8 x 9,2 " / 234 mm shells or 2,4 torpedoes
   Stability (Unstable if below 1.00): 1,06
   Metacentric height 3,0 ft / 0,9 m
   Roll period: 16,0 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,84
   Seaboat quality  (Average = 1.00): 1,15

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0,488 / 0,496
   Length to Beam Ratio: 9,30 : 1
   'Natural speed' for length: 24,84 kts
   Power going to wave formation at top speed: 52 %
   Trim (Max stability = 0, Max steadiness = 100): 61
   Bow angle (Positive = bow angles forward): 12,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   16,25 %,  27,40 ft / 8,35 m,  21,16 ft / 6,45 m
      - Forward deck:   34,25 %,  21,16 ft / 6,45 m,  17,06 ft / 5,20 m
      - Aft deck:   34,25 %,  17,06 ft / 5,20 m,  16,40 ft / 5,00 m
      - Quarter deck:   15,25 %,  16,40 ft / 5,00 m,  16,40 ft / 5,00 m
      - Average freeboard:      18,62 ft / 5,68 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 104,8 %
      - Above water (accommodation/working, high = better): 164,7 %
   Waterplane Area: 26 968 Square feet or 2 505 Square metres
   Displacement factor (Displacement / loading): 107 %
   Structure weight / hull surface area: 124 lbs/sq ft or 606 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,97
      - Longitudinal: 1,25
      - Overall: 1,00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

AD
25t for Long Range Marconi
114t for top mast rangefinder - FC1924
OD
32t for 2x4TTx21" HW
45t for 2 seaplanes + cata
40t reserved for new armament, materials, minen...
AW
Climatisatisation
BW
50t for additionnal pumps

[Kaiser Kirk]

The critique of the mount vs. turret still holds.
If the rotating weight of the USN 8", power assisted,  was too high for smooth operations, and was detrimental in shorter range fights,
then a heavily armored 234mm mount at 262tons without power assist can be expected to have the same- I would at the least assign weight to power assist. We have been using 10% of the gun+mount+armor weight.

[Jefgte]

The critique of the mount vs. turret still holds.
If the rotating weight of the USN 8", power assisted,  was too high for smooth operations, and was detrimental in shorter range fights,
then a heavily armored 234mm mount at 262tons without power assist can be expected to have the same- I would at the least assign weight to power assist. We have been using 10% of the gun+mount+armor weight.

Of coures: "turret on barbette mounts"

      8 - 9,21" / 234 mm 51,0 cal guns - 390,99lbs / 177,35kg shells, 125 per gun
      Breech loading guns in turret on barbette mounts, 1933 Model
      4 x 2-gun mounts on centreline ends, evenly spread
        2 raised mounts - superfiring

---------------------------------

12280t AC, Byzantine Empire 4T2x234 laid down 1933

Displacement:
   12 280 t light; 12 983 t standard; 14 132 t normal; 15 052 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (635,81 ft / 629,92 ft) x 78,74 ft x (21,04 / 22,04 ft)
   (193,80 m / 192,00 m) x 24,00 m  x (6,41 / 6,72 m)

Armament:
      8 - 9,21" / 234 mm 51,0 cal guns - 390,99lbs / 177,35kg shells, 125 per gun
     Breech loading guns in turret on barbette mounts, 1933 Model
     4 x 2-gun mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
      16 - 4,49" / 114 mm 45,0 cal guns - 58,00lbs / 26,31kg shells, 320 per gun
     Dual purpose guns in deck and hoist mounts, 1933 Model
     8 x 2-gun mounts on sides, evenly spread
      16 - 1,57" / 40,0 mm 39,0 cal guns - 2,01lbs / 0,91kg shells, 2 000 per gun
     Quick firing guns in deck mounts, 1933 Model
     8 x 2-gun mounts on sides, evenly spread
      8 raised mounts
      16 - 0,50" / 12,7 mm 62,0 cal guns - 0,07lbs / 0,03kg shells, 4 000 per gun
     Machine guns in deck mounts, 1933 Model
     8 x 2-gun mounts on side ends, evenly spread
      8 raised mounts
      Weight of broadside 4 089 lbs / 1 855 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   5,91" / 150 mm   431,50 ft / 131,52 m   10,66 ft / 3,25 m
   Ends:   1,18" / 30 mm   198,39 ft / 60,47 m   10,66 ft / 3,25 m
     Main Belt covers 105 % of normal length

   - Torpedo Bulkhead - Strengthened structural bulkheads:
      1,57" / 40 mm   431,50 ft / 131,52 m   17,91 ft / 5,46 m
   Beam between torpedo bulkheads 62,34 ft / 19,00 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   7,09" / 180 mm   2,36" / 60 mm      4,72" / 120 mm
   2nd:   0,39" / 10 mm         -               -
   4th:   0,24" / 6 mm         -               -
   5th:   0,24" / 6 mm         -               -

   - Protected deck - single deck:
   For and Aft decks: 1,97" / 50 mm
   Forecastle: 1,18" / 30 mm  Quarter deck: 1,57" / 40 mm

   - Conning towers: Forward 4,72" / 120 mm, Aft 2,76" / 70 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 80 289 shp / 59 896 Kw = 30,00 kts
   Range 12 000nm at 12,00 kts
   Bunker at max displacement = 2 069 tons

Complement:
   647 - 842

Cost:
   £5,588 million / $22,352 million

Distribution of weights at normal displacement:
   Armament: 1 269 tons, 9,0 %
      - Guns: 1 269 tons, 9,0 %
   Armour: 3 445 tons, 24,4 %
      - Belts: 1 220 tons, 8,6 %
      - Torpedo bulkhead: 450 tons, 3,2 %
      - Armament: 549 tons, 3,9 %
      - Armour Deck: 1 131 tons, 8,0 %
      - Conning Towers: 94 tons, 0,7 %
   Machinery: 2 339 tons, 16,6 %
   Hull, fittings & equipment: 4 838 tons, 34,2 %
   Fuel, ammunition & stores: 1 852 tons, 13,1 %
   Miscellaneous weights: 389 tons, 2,8 %
      - Hull below water: 60 tons
      - On freeboard deck: 177 tons
      - Above deck: 152 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     19 182 lbs / 8 701 Kg = 49,1 x 9,2 " / 234 mm shells or 3,3 torpedoes
   Stability (Unstable if below 1.00): 1,09
   Metacentric height 4,1 ft / 1,3 m
   Roll period: 16,3 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,49
   Seaboat quality  (Average = 1.00): 1,05

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0,474 / 0,482
   Length to Beam Ratio: 8,00 : 1
   'Natural speed' for length: 25,10 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 68
   Bow angle (Positive = bow angles forward): 12,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   17,25 %,  27,72 ft / 8,45 m,  21,16 ft / 6,45 m
      - Forward deck:   34,25 %,  21,16 ft / 6,45 m,  17,06 ft / 5,20 m
      - Aft deck:   34,25 %,  17,06 ft / 5,20 m,  16,40 ft / 5,00 m
      - Quarter deck:   14,25 %,  16,40 ft / 5,00 m,  16,40 ft / 5,00 m
      - Average freeboard:      18,72 ft / 5,70 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 104,8 %
      - Above water (accommodation/working, high = better): 170,4 %
   Waterplane Area: 32 288 Square feet or 3 000 Square metres
   Displacement factor (Displacement / loading): 113 %
   Structure weight / hull surface area: 133 lbs/sq ft or 649 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,98
      - Longitudinal: 1,18
      - Overall: 1,00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

AD
25t for Long Range Marconi
127t for top mast rangefinder - FC1924
OD
32t for 2x4TTx21" HW
45t for 2 seaplanes + cata
60t reserved for new armament, materials, minen...
AW
Climatisatisation
BW
60t for additionnal pumps

[Jefgte]

Prens class, Byzantine Empire D16-Colonial Destroyer laid down 1933

Displacement:
   1 040 t light; 1 104 t standard; 1 213 t normal; 1 299 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (304,88 ft / 301,84 ft) x 30,18 ft x (11,65 / 12,19 ft)
   (92,93 m / 92,00 m) x 9,20 m  x (3,55 / 3,71 m)

Armament:
      4 - 4,72" / 120 mm 45,0 cal guns - 50,00lbs / 22,68kg shells, 200 per gun
     Quick firing guns in deck mounts, 1926 Model
     2 x 2-gun mounts on centreline ends, evenly spread
      4 - 1,57" / 40,0 mm 39,0 cal guns - 2,01lbs / 0,91kg shells, 2 000 per gun
     Anti-air guns in deck mounts, 1933 Model
     2 x 2-gun mounts on centreline ends, evenly spread
      2 raised mounts
      4 - 1,57" / 40,0 mm 39,0 cal guns - 2,01lbs / 0,91kg shells, 2 000 per gun
     Anti-air guns in deck mounts, 1933 Model
     2 x 2-gun mounts on sides, forward deck aft
      2 raised mounts
      4 - 0,50" / 12,7 mm 62,0 cal guns - 0,07lbs / 0,03kg shells, 4 000 per gun
     Machine guns in deck mounts, 1933 Model
     2 x 2-gun mounts on sides, forward deck forward
      2 raised mounts
      Weight of broadside 216 lbs / 98 kg

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

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 28 580 shp / 21 320 Kw = 31,69 kts
   Range 5 000nm at 12,00 kts
   Bunker at max displacement = 195 tons

Complement:
   102 - 133

Cost:
   £0,625 million / $2,501 million

Distribution of weights at normal displacement:
   Armament: 41 tons, 3,4 %
      - Guns: 41 tons, 3,4 %
   Armour: 3 tons, 0,3 %
      - Armament: 3 tons, 0,3 %
   Machinery: 606 tons, 50,0 %
   Hull, fittings & equipment: 319 tons, 26,3 %
   Fuel, ammunition & stores: 173 tons, 14,3 %
   Miscellaneous weights: 71 tons, 5,9 %
      - On freeboard deck: 67 tons
      - Above deck: 4 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     340 lbs / 154 Kg = 6,4 x 4,7 " / 120 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,14
   Metacentric height 1,1 ft / 0,3 m
   Roll period: 12,3 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,32
   Seaboat quality  (Average = 1.00): 1,02

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0,400 / 0,410
   Length to Beam Ratio: 10,00 : 1
   'Natural speed' for length: 17,37 kts
   Power going to wave formation at top speed: 68 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   Bow angle (Positive = bow angles forward): 9,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   18,00 %,  19,19 ft / 5,85 m,  15,58 ft / 4,75 m
      - Forward deck:   33,00 %,  15,58 ft / 4,75 m,  12,30 ft / 3,75 m
      - Aft deck:   33,00 %,  12,30 ft / 3,75 m,  11,32 ft / 3,45 m
      - Quarter deck:   16,00 %,  11,32 ft / 3,45 m,  11,32 ft / 3,45 m
      - Average freeboard:      13,38 ft / 4,08 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 172,6 %
      - Above water (accommodation/working, high = better): 134,9 %
   Waterplane Area: 5 608 Square feet or 521 Square metres
   Displacement factor (Displacement / loading): 66 %
   Structure weight / hull surface area: 30 lbs/sq ft or 146 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 2,30
      - Overall: 0,58
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

AD
Short Marconi
4t for top fire control
OD
24t for 2x3TTx533HW
15t for enhanced hydrophone
6t for 30x195kg DC
2t for paravanes
20t reserve
AW
Climatisation

Trial speed:32,5
Bonus:0,81