Byzantine Empire 1918-1922

[Jefgte]

DD1300, Byzantine Empire Colonial DD laid down 1920

Displacement:
   1 300 t light; 1 353 t standard; 1 499 t normal; 1 616 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (369,08 ft / 367,45 ft) x 35,43 ft x (10,08 / 10,59 ft)
   (112,49 m / 112,00 m) x 10,80 m  x (3,07 / 3,23 m)

Armament:
      4 - 4,72" / 120 mm 45,0 cal guns - 53,02lbs / 24,05kg shells, 180 per gun
     Quick firing guns in deck mounts, 1920 Model
     2 x Twin mounts on centreline ends, evenly spread
      1 - 3,00" / 76,2 mm 45,0 cal gun - 13,62lbs / 6,18kg shells, 200 per gun
     Anti-air gun in deck mount, 1920 Model
     1 x Single mount on centreline, aft deck aft
      1 raised mount
      2 - 0,30" / 7,7 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 3 000 per gun
     Machine guns in deck mounts, 1920 Model
     2 x Single mounts on sides, forward deck forward
      Weight of broadside 226 lbs / 102 kg

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

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 30 342 shp / 22 635 Kw = 32,00 kts
   Range 5 200nm at 12,00 kts
   Bunker at max displacement = 264 tons

Complement:
   119 - 156

Cost:
   £0,392 million / $1,568 million

Distribution of weights at normal displacement:
   Armament: 34 tons, 2,2 %
      - Guns: 34 tons, 2,2 %
   Armour: 5 tons, 0,3 %
      - Armament: 5 tons, 0,3 %
   Machinery: 782 tons, 52,2 %
   Hull, fittings & equipment: 393 tons, 26,2 %
   Fuel, ammunition & stores: 199 tons, 13,3 %
   Miscellaneous weights: 87 tons, 5,8 %
      - On freeboard deck: 57 tons
      - Above deck: 30 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     432 lbs / 196 Kg = 8,2 x 4,7 " / 120 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,26
   Metacentric height 1,6 ft / 0,5 m
   Roll period: 11,7 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,17
   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: 10,37 : 1
   'Natural speed' for length: 19,17 kts
   Power going to wave formation at top speed: 63 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   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:   18,00 %,  18,54 ft / 5,65 m,  15,26 ft / 4,65 m
      - Forward deck:   33,00 %,  15,26 ft / 4,65 m,  11,98 ft / 3,65 m
      - Aft deck:   33,00 %,  11,98 ft / 3,65 m,  11,98 ft / 3,65 m
      - Quarter deck:   16,00 %,  11,98 ft / 3,65 m,  12,63 ft / 3,85 m
      - Average freeboard:      13,40 ft / 4,08 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 176,1 %
      - Above water (accommodation/working, high = better): 164,1 %
   Waterplane Area: 8 015 Square feet or 745 Square metres
   Displacement factor (Displacement / loading): 65 %
   Structure weight / hull surface area: 30 lbs/sq ft or 147 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 1,11
      - Overall: 0,54
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

25t for LR Marconi
5t for top mast rangefinder

3t for forced ventillation
24t for 6TTx21"
15t for ehanced hydrophone
5t for 50x90kg DC
10t reserved

Trial speed: 33kts
Bonus: 1

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

T700, Byzantine Empire Colonial Torpedo Boat laid down 1920

Displacement:
   700 t light; 733 t standard; 816 t normal; 883 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (260,63 ft / 259,19 ft) x 27,23 ft x (10,12 / 10,66 ft)
   (79,44 m / 79,00 m) x 8,30 m  x (3,09 / 3,25 m)

Armament:
      4 - 4,00" / 102 mm 45,0 cal guns - 32,27lbs / 14,64kg shells, 210 per gun
     Quick firing guns in deck mounts, 1920 Model
     2 x Twin mounts on centreline ends, evenly spread
      1 - 3,00" / 76,2 mm 45,0 cal gun - 13,62lbs / 6,18kg shells, 215 per gun
     Anti-air gun in deck mount, 1920 Model
     1 x Single mount on centreline, aft deck aft
      1 raised mount
      2 - 0,30" / 7,7 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 3 500 per gun
     Machine guns in deck mounts, 1920 Model
     2 x Single mounts on sides, forward deck forward
      2 raised mounts
      Weight of broadside 143 lbs / 65 kg

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

Machinery:
   Coal and oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 17 780 shp / 13 264 Kw = 29,41 kts
   Range 4 000nm at 12,00 kts
   Bunker at max displacement = 150 tons (25% coal)

Complement:
   76 - 99

Cost:
   £0,210 million / $0,838 million

Distribution of weights at normal displacement:
   Armament: 22 tons, 2,7 %
      - Guns: 22 tons, 2,7 %
   Armour: 4 tons, 0,5 %
      - Armament: 4 tons, 0,5 %
   Machinery: 409 tons, 50,0 %
   Hull, fittings & equipment: 222 tons, 27,2 %
   Fuel, ammunition & stores: 117 tons, 14,3 %
   Miscellaneous weights: 43 tons, 5,3 %
      - On freeboard deck: 41 tons
      - Above deck: 2 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     243 lbs / 110 Kg = 7,6 x 4,0 " / 102 mm shells or 0,2 torpedoes
   Stability (Unstable if below 1.00): 1,16
   Metacentric height 0,9 ft / 0,3 m
   Roll period: 11,8 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,31
   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): 0,400 / 0,411
   Length to Beam Ratio: 9,52 : 1
   'Natural speed' for length: 16,10 kts
   Power going to wave formation at top speed: 68 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   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:   18,00 %,  16,47 ft / 5,02 m,  13,52 ft / 4,12 m
      - Forward deck:   33,00 %,  13,52 ft / 4,12 m,  11,22 ft / 3,42 m
      - Aft deck:   33,00 %,  11,22 ft / 3,42 m,  10,56 ft / 3,22 m
      - Quarter deck:   16,00 %,  10,56 ft / 3,22 m,  11,22 ft / 3,42 m
      - Average freeboard:      12,06 ft / 3,68 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 170,9 %
      - Above water (accommodation/working, high = better): 126,6 %
   Waterplane Area: 4 345 Square feet or 404 Square metres
   Displacement factor (Displacement / loading): 59 %
   Structure weight / hull surface area: 26 lbs/sq ft or 129 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 2,48
      - Overall: 0,58
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

2t for top mast rangefinder
3t for forced ventilation
16t for 2x2TTx21"
5t for hydrophone
5t for 50x90kg DC
12t reserved

Trial speed: 31kts
Bonus: 1.55

[Jefgte]

Scout Cruiser looking like a little Panzershiff in a 125m shipyards.

Byzantine Empire Scout Cruiser laid down 1920

Gayal - Girga - Gerdek - Gemlik

Displacement:
   5 500 t light; 5 825 t standard; 6 157 t normal; 6 422 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (409,78 ft / 409,78 ft) x 61,58 ft x (20,33 / 20,92 ft)
   (124,90 m / 124,90 m) x 18,77 m  x (6,20 / 6,38 m)

Armament:
      6 - 7,52" / 191 mm 45,0 cal guns - 214,42lbs / 97,26kg shells, 150 per gun
     Breech loading guns in turret on barbette mounts, 1920 Model
     2 x Triple mounts on centreline ends, evenly spread
      8 - 4,72" / 120 mm 45,0 cal guns - 53,17lbs / 24,12kg shells, 150 per gun
     Quick firing guns in deck mounts, 1920 Model
     8 x Single mounts on sides, evenly spread
      2 - 3,00" / 76,2 mm 0,0 cal guns - 11,59lbs / 5,26kg shells, 200 per gun
     Anti-air guns in deck mounts, 1920 Model
     2 x Single mounts on sides, aft deck forward
      8 - 1,85" / 47,0 mm 45,0 cal guns - 3,19lbs / 1,45kg shells, 4 000 per gun
     Quick firing guns in deck mounts, 1920 Model
     8 x Single mounts on sides, evenly spread
      8 raised mounts
      4 - 0,30" / 7,7 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 4 000 per gun
     Machine guns in deck mounts, 1920 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
      Weight of broadside 1 761 lbs / 799 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   4,72" / 120 mm   262,47 ft / 80,00 m   9,84 ft / 3,00 m
   Ends:   1,18" / 30 mm   144,36 ft / 44,00 m   7,87 ft / 2,40 m
     2,95 ft / 0,90 m Unarmoured ends
   Upper:   1,18" / 30 mm   262,47 ft / 80,00 m   9,84 ft / 3,00 m
     Main Belt covers 99 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   6,30" / 160 mm   2,56" / 65 mm      4,72" / 120 mm
   2nd:   0,79" / 20 mm         -               -
   3rd:   0,39" / 10 mm         -               -
   4th:   0,39" / 10 mm         -               -
   5th:   0,39" / 10 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 1,57" / 40 mm
   Forecastle: 0,98" / 25 mm  Quarter deck: 0,98" / 25 mm

   - Conning towers: Forward 3,94" / 100 mm, Aft 1,57" / 40 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 37 400 shp / 27 900 Kw = 27,02 kts
   Range 5 000nm at 12,00 kts
   Bunker at max displacement = 596 tons

Complement:
   346 - 451

Cost:
   £1,225 million / $4,900 million

Distribution of weights at normal displacement:
   Armament: 370 tons, 6,0 %
      - Guns: 370 tons, 6,0 %
   Armour: 1 405 tons, 22,8 %
      - Belts: 704 tons, 11,4 %
      - Armament: 233 tons, 3,8 %
      - Armour Deck: 427 tons, 6,9 %
      - Conning Towers: 40 tons, 0,6 %
   Machinery: 1 308 tons, 21,2 %
   Hull, fittings & equipment: 2 242 tons, 36,4 %
   Fuel, ammunition & stores: 656 tons, 10,7 %
   Miscellaneous weights: 176 tons, 2,9 %
      - Hull below water: 30 tons
      - Hull above water: 30 tons
      - On freeboard deck: 54 tons
      - Above deck: 62 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     7 557 lbs / 3 428 Kg = 35,5 x 7,5 " / 191 mm shells or 1,5 torpedoes
   Stability (Unstable if below 1.00): 1,13
   Metacentric height 3,1 ft / 0,9 m
   Roll period: 14,8 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,38
   Seaboat quality  (Average = 1.00): 1,04

Hull form characteristics:
   Hull has a flush deck,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,420 / 0,426
   Length to Beam Ratio: 6,65 : 1
   'Natural speed' for length: 20,24 kts
   Power going to wave formation at top speed: 60 %
   Trim (Max stability = 0, Max steadiness = 100): 68
   Bow angle (Positive = bow angles forward): 0,00 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 %,  21,33 ft / 6,50 m,  17,72 ft / 5,40 m
      - Forward deck:   32,00 %,  17,72 ft / 5,40 m,  15,09 ft / 4,60 m
      - Aft deck:   32,00 %,  15,09 ft / 4,60 m,  15,09 ft / 4,60 m
      - Quarter deck:   18,00 %,  15,09 ft / 4,60 m,  15,09 ft / 4,60 m
      - Average freeboard:      16,24 ft / 4,95 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 93,2 %
      - Above water (accommodation/working, high = better): 136,4 %
   Waterplane Area: 15 732 Square feet or 1 462 Square metres
   Displacement factor (Displacement / loading): 111 %
   Structure weight / hull surface area: 102 lbs/sq ft or 496 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,91
      - Longitudinal: 2,39
      - Overall: 1,00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

37t for top fire control
25t for Marconi
33t for additionnal pumps
30t for additionnal ventilation
30t reserved for troops, materials, mines...
24t for 2x3TTx533

[Jefgte]

D10, laid down 1920, Byzantine Empire Improved D9 (1916-1140t)

Displacement:
   1 400 t light; 1 461 t standard; 1 637 t normal; 1 778 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (362,49 ft / 360,89 ft) x 35,50 ft x (11,18 / 11,81 ft)
   (110,49 m / 110,00 m) x 10,82 m  x (3,41 / 3,60 m)

Armament:
      4 - 4,72" / 120 mm 45,0 cal guns - 53,03lbs / 24,05kg shells, 190 per gun
     Quick firing guns in deck mounts, 1920 Model
     4 x Single mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
      1 - 3,00" / 76,2 mm 45,0 cal gun - 13,62lbs / 6,18kg shells, 250 per gun
     Anti-air gun in deck mount, 1920 Model
     1 x Single mount on centreline, forward deck aft
      1 raised mount
      2 - 1,85" / 47,0 mm 50,0 cal guns - 3,35lbs / 1,52kg shells, 1 000 per gun
     Quick firing guns in deck mounts, 1920 Model
     2 x Single mounts on sides, forward deck aft
      2 raised mounts
      2 - 0,30" / 7,7 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 2 000 per gun
     Machine guns in deck mounts, 1920 Model
     2 x Single mounts on sides, forward deck forward
      Weight of broadside 232 lbs / 105 kg

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

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 31 623 shp / 23 591 Kw = 31,80 kts
   Range 6 000nm at 12,00 kts
   Bunker at max displacement = 317 tons

Complement:
   128 - 167

Cost:
   £0,423 million / $1,693 million

Distribution of weights at normal displacement:
   Armament: 42 tons, 2,5 %
      - Guns: 42 tons, 2,5 %
   Armour: 8 tons, 0,5 %
      - Armament: 8 tons, 0,5 %
   Machinery: 848 tons, 51,8 %
   Hull, fittings & equipment: 401 tons, 24,5 %
   Fuel, ammunition & stores: 237 tons, 14,5 %
   Miscellaneous weights: 101 tons, 6,2 %
      - On freeboard deck: 72 tons
      - Above deck: 29 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     449 lbs / 204 Kg = 8,5 x 4,7 " / 120 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,25
   Metacentric height 1,6 ft / 0,5 m
   Roll period: 11,9 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,22
   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 / 0,411
   Length to Beam Ratio: 10,17 : 1
   'Natural speed' for length: 19,00 kts
   Power going to wave formation at top speed: 63 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   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 %,  18,21 ft / 5,55 m,  14,93 ft / 4,55 m
      - Forward deck:   32,50 %,  14,93 ft / 4,55 m,  12,30 ft / 3,75 m
      - Aft deck:   32,50 %,  12,30 ft / 3,75 m,  12,30 ft / 3,75 m
      - Quarter deck:   17,50 %,  12,30 ft / 3,75 m,  12,96 ft / 3,95 m
      - Average freeboard:      13,48 ft / 4,11 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 174,9 %
      - Above water (accommodation/working, high = better): 152,1 %
   Waterplane Area: 7 886 Square feet or 733 Square metres
   Displacement factor (Displacement / loading): 67 %
   Structure weight / hull surface area: 31 lbs/sq ft or 152 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 1,17
      - Overall: 0,54
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

32t for 8TT x 533 HW
4t for 1918 top mast rangefinder
25t for LR marconi
6t for additionnal engines ventillation
15t for improved Hydrophone
5t for 50x90DC
4t for paravanes
10t reserved for new material, armament.

Trial speed: 32.5kts
Bonus: 0.7

[The Rock Doctor]

Do you want both main guns superfiring?

[Jefgte]

Do you want both main guns superfiring?

         B                       X
    A                                   Y


T2x120 with hoist is too heavy for 1400t

[The Rock Doctor]

My bad, for some reason I though it was two twins.

[Jefgte]

Able to cross the Atlantic and Indian Oceans and equipped with full armament, the T840s are intended to work in the colonies.
840t is the maximum size for colonial 80m shipyards.
They are equipped to be MTB flotilla leader.

T840, Byzantine Empire Colonial Torpedo Boat laid down 1920

Displacement:
   840 t light; 883 t standard; 960 t normal; 1 022 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (262,14 ft / 262,14 ft) x 27,59 ft x (11,50 / 11,98 ft)
   (79,90 m / 79,90 m) x 8,41 m  x (3,51 / 3,65 m)

Armament:
      4 - 4,00" / 102 mm 45,0 cal guns - 32,28lbs / 14,64kg shells, 200 per gun
     Quick firing guns in deck mounts, 1920 Model
     2 x Twin mounts on centreline ends, evenly spread
      1 - 3,00" / 76,2 mm 45,0 cal gun - 13,62lbs / 6,18kg shells, 250 per gun
     Anti-air gun in deck mount, 1920 Model
     1 x Single mount on centreline, aft deck aft
      1 raised mount
      4 - 1,85" / 47,0 mm 50,0 cal guns - 3,35lbs / 1,52kg shells, 1 000 per gun
     Quick firing guns in deck mounts, 1920 Model
     4 x Single mounts on sides, forward deck aft
      2 - 0,30" / 7,7 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 3 000 per gun
     Machine guns in deck mounts, 1920 Model
     2 x Single mounts on sides, forward deck forward
      Weight of broadside 156 lbs / 71 kg

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

Machinery:
   Coal and oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 20 780 shp / 15 502 Kw = 29,79 kts
   Range 5 000nm at 10,00 kts
   Bunker at max displacement = 139 tons (25% coal)

Complement:
   86 - 112

Cost:
   £0,247 million / $0,987 million

Distribution of weights at normal displacement:
   Armament: 25 tons, 2,6 %
      - Guns: 25 tons, 2,6 %
   Armour: 8 tons, 0,8 %
      - Armament: 8 tons, 0,8 %
   Machinery: 480 tons, 50,0 %
   Hull, fittings & equipment: 246 tons, 25,7 %
   Fuel, ammunition & stores: 120 tons, 12,5 %
   Miscellaneous weights: 80 tons, 8,3 %
      - On freeboard deck: 52 tons
      - Above deck: 28 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     260 lbs / 118 Kg = 8,1 x 4,0 " / 102 mm shells or 0,2 torpedoes
   Stability (Unstable if below 1.00): 1,07
   Metacentric height 0,8 ft / 0,3 m
   Roll period: 12,8 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,33
   Seaboat quality  (Average = 1.00): 1,00

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0,404 / 0,413
   Length to Beam Ratio: 9,50 : 1
   'Natural speed' for length: 16,19 kts
   Power going to wave formation at top speed: 69 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   Bow angle (Positive = bow angles forward): 0,00 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 %,  16,40 ft / 5,00 m,  14,04 ft / 4,28 m
      - Forward deck:   33,00 %,  14,04 ft / 4,28 m,  11,42 ft / 3,48 m
      - Aft deck:   33,00 %,  11,42 ft / 3,48 m,  11,42 ft / 3,48 m
      - Quarter deck:   16,00 %,  11,42 ft / 3,48 m,  11,75 ft / 3,58 m
      - Average freeboard:      12,52 ft / 3,82 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 171,0 %
      - Above water (accommodation/working, high = better): 119,3 %
   Waterplane Area: 4 463 Square feet or 415 Square metres
   Displacement factor (Displacement / loading): 58 %
   Structure weight / hull surface area: 27 lbs/sq ft or 134 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 2,74
      - Overall: 0,59
   Cramped machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

3t for top mast rangefinder
25t for Long Range Marconi
12t for 1x3TTx533 HW
4t for forced ventilation
15t for Ehanced Hydrophone
5t for 50x90kg DC
16t reserved for MTB Flotilla Leader or new material, armament or 16 minen.

Trial speed: 31kts
Bonus: 1.34

[Jefgte]

The old Atokos class 1894-1896 10x191-21kts needs replacement.

1913 - C5 class (5315t - 6x191+6x120 - 27kts - 6500nm@12kts)). (AB) (CD) (XY) B, D & X superfiring.
1918 - C6 class (5550t - 6x191+6x120 - 29kts - 8000nm@12kts). (ABC) (XYZ) B & X superfiring.
1920 - C7 class (5900t - 6x191+6x120 - 29.7kts - 8700nm@12kts). (ABC) (XYZ) B & X superfiring.

C7, Byzantine Empire Colony class laid down 1920


Displacement:
   5 900 t light; 6 186 t standard; 6 793 t normal; 7 278 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (522,25 ft / 518,37 ft) x 54,56 ft x (17,70 / 18,62 ft)
   (159,18 m / 158,00 m) x 16,63 m  x (5,39 / 5,68 m)

Armament:
      6 - 7,52" / 191 mm 45,0 cal guns - 214,42lbs / 97,26kg shells, 140 per gun
     Breech loading guns in deck and hoist mounts, 1920 Model
     6 x Single mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
      6 - 4,72" / 120 mm 45,0 cal guns - 53,17lbs / 24,12kg shells, 200 per gun
     Quick firing guns in deck and hoist mounts, 1920 Model
     6 x Single mounts on sides, evenly spread
      2 - 3,00" / 76,2 mm 45,0 cal guns - 13,62lbs / 6,18kg shells, 220 per gun
     Anti-air guns in deck mounts, 1920 Model
     2 x Single mounts on sides, forward deck centre
      2 raised mounts
      6 - 1,85" / 47,0 mm 45,0 cal guns - 3,19lbs / 1,45kg shells, 1 000 per gun
     Quick firing guns in deck mounts, 1920 Model
     6 x Single mounts on sides, forward evenly spread
      6 raised mounts
      4 - 0,30" / 7,7 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 4 000 per gun
     Machine guns in deck mounts, 1920 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
      Weight of broadside 1 652 lbs / 749 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3,94" / 100 mm   367,45 ft / 112,00 m   10,00 ft / 3,05 m
   Ends:   1,38" / 35 mm   150,92 ft / 46,00 m   7,87 ft / 2,40 m
     Main Belt covers 109 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   4,72" / 120 mm   0,79" / 20 mm      2,76" / 70 mm
   2nd:   0,79" / 20 mm         -               -
   3rd:   0,39" / 10 mm         -               -
   4th:   0,39" / 10 mm         -               -
   5th:   0,39" / 10 mm         -               -

   - Protected deck - single deck:
   For and Aft decks: 1,38" / 35 mm
   Forecastle: 0,98" / 25 mm  Quarter deck: 0,98" / 25 mm

   - Conning towers: Forward 3,54" / 90 mm, Aft 2,76" / 70 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 52 000 shp / 38 805 Kw = 29,75 kts
   Range 8 700nm at 12,00 kts
   Bunker at max displacement = 1 093 tons

Complement:
   373 - 486

Cost:
   £1,454 million / $5,815 million

Distribution of weights at normal displacement:
   Armament: 433 tons, 6,4 %
      - Guns: 433 tons, 6,4 %
   Armour: 1 238 tons, 18,2 %
      - Belts: 646 tons, 9,5 %
      - Armament: 96 tons, 1,4 %
      - Armour Deck: 448 tons, 6,6 %
      - Conning Towers: 49 tons, 0,7 %
   Machinery: 1 819 tons, 26,8 %
   Hull, fittings & equipment: 2 182 tons, 32,1 %
   Fuel, ammunition & stores: 893 tons, 13,1 %
   Miscellaneous weights: 228 tons, 3,4 %
      - Hull above water: 32 tons
      - On freeboard deck: 128 tons
      - Above deck: 68 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5 817 lbs / 2 639 Kg = 27,4 x 7,5 " / 191 mm shells or 1,1 torpedoes
   Stability (Unstable if below 1.00): 1,05
   Metacentric height 2,2 ft / 0,7 m
   Roll period: 15,4 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,65
   Seaboat quality  (Average = 1.00): 1,03

Hull form characteristics:
   Hull has a flush deck,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0,475 / 0,484
   Length to Beam Ratio: 9,50 : 1
   'Natural speed' for length: 22,77 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 68
   Bow angle (Positive = bow angles forward): 10,00 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 %,  21,98 ft / 6,70 m,  18,04 ft / 5,50 m
      - Forward deck:   32,50 %,  18,04 ft / 5,50 m,  14,76 ft / 4,50 m
      - Aft deck:   32,50 %,  14,76 ft / 4,50 m,  14,76 ft / 4,50 m
      - Quarter deck:   17,50 %,  14,76 ft / 4,50 m,  14,76 ft / 4,50 m
      - Average freeboard:      16,15 ft / 4,92 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 108,8 %
      - Above water (accommodation/working, high = better): 146,6 %
   Waterplane Area: 18 427 Square feet or 1 712 Square metres
   Displacement factor (Displacement / loading): 103 %
   Structure weight / hull surface area: 85 lbs/sq ft or 414 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,87
      - Longitudinal: 1,14
      - Overall: 0,90
   Caution: Hull subject to strain in open-sea
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

25t for Long Range Marconi
43t for top mast rangefinder - FC1913
26t for climatisation
26t for additionnal pumps
32t for 8TTx533 HW
60t for 2x30 minen
16t reserved

[Jefgte]

In 1922, Byzantium could build 2000t DD.
The previous is D10 class - 1920 - 1400t - 4x120 - 31.8kts
I test D11 class - 1600t - 3T2x120 - 32,4kts
(TT identical)

Byzantine Empire, D11 class, laid down 1922

Displacement:
   1 600 t light; 1 678 t standard; 1 882 t normal; 2 045 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (370,72 ft / 367,45 ft) x 35,50 ft x (12,47 / 13,17 ft)
   (113,00 m / 112,00 m) x 10,82 m  x (3,80 / 4,02 m)

Armament:
      6 - 4,72" / 120 mm 45,0 cal guns - 53,03lbs / 24,05kg shells, 200 per gun
     Quick firing guns in deck mounts, 1922 Model
     3 x Twin mounts on centreline ends, majority aft
      1 raised mount aft - superfiring
      1 - 3,00" / 76,2 mm 45,0 cal gun - 13,62lbs / 6,18kg shells, 250 per gun
     Anti-air gun in deck mount, 1922 Model
     1 x Single mount on centreline, forward deck aft
      1 raised mount
      2 - 1,85" / 47,0 mm 50,0 cal guns - 3,35lbs / 1,52kg shells, 1 000 per gun
     Quick firing guns in deck mounts, 1922 Model
     2 x Single mounts on sides, forward deck aft
      2 raised mounts
      2 - 0,30" / 7,7 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 4 000 per gun
     Machine guns in deck mounts, 1922 Model
     2 x Single mounts on sides, forward deck forward
      Weight of broadside 339 lbs / 154 kg

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

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 37 200 shp / 27 751 Kw = 32,43 kts
   Range 6 500nm at 12,00 kts
   Bunker at max displacement = 366 tons

Complement:
   142 - 185

Cost:
   £0,574 million / $2,297 million

Distribution of weights at normal displacement:
   Armament: 51 tons, 2,7 %
      - Guns: 51 tons, 2,7 %
   Armour: 7 tons, 0,4 %
      - Armament: 7 tons, 0,4 %
   Machinery: 987 tons, 52,5 %
   Hull, fittings & equipment: 452 tons, 24,0 %
   Fuel, ammunition & stores: 282 tons, 15,0 %
   Miscellaneous weights: 102 tons, 5,4 %
      - On freeboard deck: 72 tons
      - Above deck: 30 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     472 lbs / 214 Kg = 9,0 x 4,7 " / 120 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,24
   Metacentric height 1,6 ft / 0,5 m
   Roll period: 11,9 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,29
   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): 0,405 / 0,416
   Length to Beam Ratio: 10,35 : 1
   'Natural speed' for length: 19,17 kts
   Power going to wave formation at top speed: 64 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   Bow angle (Positive = bow angles forward): 10,00 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 %,  18,54 ft / 5,65 m,  15,91 ft / 4,85 m
      - Forward deck:   32,50 %,  15,91 ft / 4,85 m,  12,63 ft / 3,85 m
      - Aft deck:   32,50 %,  12,63 ft / 3,85 m,  12,63 ft / 3,85 m
      - Quarter deck:   17,50 %,  12,63 ft / 3,85 m,  12,63 ft / 3,85 m
      - Average freeboard:      13,92 ft / 4,24 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 178,9 %
      - Above water (accommodation/working, high = better): 145,3 %
   Waterplane Area: 8 053 Square feet or 748 Square metres
   Displacement factor (Displacement / loading): 67 %
   Structure weight / hull surface area: 33 lbs/sq ft or 159 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 1,31
      - Overall: 0,55
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

32t for 8TT x 533 HW
5t for 1918 top mast rangefinder
25t for LR marconi
6t for additionnal engines ventillation
15t for improved Hydrophone
5t for 50x90DC
4t for paravanes
10t reserved for new material, armament, minen.

Trial speed: 33kts
Bonus: 0.57

[The Rock Doctor]

I like it.  Very capable.

[Jefgte]

I like it.  Very capable.

And not too expensive, 1.6BP & 1.6$.

[TacCovert4]

I like it.   Kind of a Gearing class.

[Jefgte]

The old Atokos class 1894-1896 10x191-21kts needs replacement.

1920 - C7 class (5900t - 6x191+6x120 - 29.7kts - 8700nm@12kts). (ABC) (XYZ) B & X superfiring.

An other possibility, no C7-5900t-  but CAGB4600 => Panzerschiff config in a 125m shipyards.

CAGB4600, Byzantine Empire Colonial Armored Gunboat laid down 1920

Displacement:
   4 600 t light; 4 819 t standard; 5 074 t normal; 5 277 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (408,72 ft / 406,82 ft) x 51,84 ft x (17,40 / 17,91 ft)
   (124,58 m / 124,00 m) x 15,80 m  x (5,30 / 5,46 m)

Armament:
      6 - 7,52" / 191 mm 45,0 cal guns - 214,42lbs / 97,26kg shells, 120 per gun
     Breech loading guns in turret on barbette mounts, 1920 Model
     2 x Triple mounts on centreline ends, evenly spread
      6 - 4,72" / 120 mm 45,0 cal guns - 53,17lbs / 24,12kg shells, 120 per gun
     Quick firing guns in deck mounts, 1920 Model
     6 x Single mounts on sides, evenly spread
      2 - 3,00" / 76,2 mm 45,0 cal guns - 13,62lbs / 6,18kg shells, 250 per gun
     Anti-air guns in deck mounts, 1920 Model
     2 x Single mounts on sides, forward deck aft
      2 raised mounts
      4 - 1,85" / 47,0 mm 45,0 cal guns - 3,19lbs / 1,45kg shells, 1 000 per gun
     Quick firing guns in deck mounts, 1920 Model
     4 x Single mounts on sides, evenly spread
      4 - 0,30" / 7,7 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 4 000 per gun
     Machine guns in deck mounts, 1920 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
      Weight of broadside 1 646 lbs / 746 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3,94" / 100 mm   275,59 ft / 84,00 m   9,84 ft / 3,00 m
   Ends:   1,38" / 35 mm   127,95 ft / 39,00 m   7,87 ft / 2,40 m
     3,28 ft / 1,00 m Unarmoured ends
     Main Belt covers 104 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   4,72" / 120 mm   0,79" / 20 mm      2,56" / 65 mm
   2nd:   0,39" / 10 mm         -               -
   3rd:   0,39" / 10 mm         -               -
   4th:   0,39" / 10 mm         -               -
   5th:   0,39" / 10 mm         -               -

   - Protected deck - single deck:
   For and Aft decks: 1,38" / 35 mm
   Forecastle: 0,98" / 25 mm  Quarter deck: 0,98" / 25 mm

   - Conning towers: Forward 3,54" / 90 mm, Aft 2,76" / 70 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 34 000 shp / 25 364 Kw = 27,09 kts
   Range 4 000nm at 12,00 kts
   Bunker at max displacement = 458 tons (20% coal)

Complement:
   299 - 390

Cost:
   £1,108 million / $4,432 million

Distribution of weights at normal displacement:
   Armament: 354 tons, 7,0 %
      - Guns: 354 tons, 7,0 %
   Armour: 992 tons, 19,5 %
      - Belts: 497 tons, 9,8 %
      - Armament: 118 tons, 2,3 %
      - Armour Deck: 336 tons, 6,6 %
      - Conning Towers: 40 tons, 0,8 %
   Machinery: 1 211 tons, 23,9 %
   Hull, fittings & equipment: 1 873 tons, 36,9 %
   Fuel, ammunition & stores: 474 tons, 9,3 %
   Miscellaneous weights: 171 tons, 3,4 %
      - Hull below water: 23 tons
      - Hull above water: 23 tons
      - On freeboard deck: 64 tons
      - Above deck: 61 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5 359 lbs / 2 431 Kg = 25,2 x 7,5 " / 191 mm shells or 1,1 torpedoes
   Stability (Unstable if below 1.00): 1,04
   Metacentric height 2,0 ft / 0,6 m
   Roll period: 15,4 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,71
   Seaboat quality  (Average = 1.00): 1,01

Hull form characteristics:
   Hull has a flush deck,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,484 / 0,489
   Length to Beam Ratio: 7,85 : 1
   'Natural speed' for length: 20,17 kts
   Power going to wave formation at top speed: 60 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   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 %,  21,65 ft / 6,60 m,  18,37 ft / 5,60 m
      - Forward deck:   32,50 %,  18,37 ft / 5,60 m,  15,09 ft / 4,60 m
      - Aft deck:   32,50 %,  15,09 ft / 4,60 m,  15,09 ft / 4,60 m
      - Quarter deck:   17,50 %,  15,09 ft / 4,60 m,  15,09 ft / 4,60 m
      - Average freeboard:      16,43 ft / 5,01 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 103,8 %
      - Above water (accommodation/working, high = better): 140,4 %
   Waterplane Area: 13 850 Square feet or 1 287 Square metres
   Displacement factor (Displacement / loading): 104 %
   Structure weight / hull surface area: 93 lbs/sq ft or 456 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,92
      - Longitudinal: 2,12
      - Overall: 1,00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

24t for 6 TT x 21'' HW
36t for top fire control
25t for Marconi
23t for additionnal pumps
23t for additionnal ventilation
40t reserved

[TacCovert4]

Is 15m wide enough for a Triple 191mm Barbette?

[Jefgte]

Is 15m wide enough for a Triple 191mm Barbette?

I think yes.

1933 Deutschland with T3x280 was 20,7m
1920 CAGB4600 with T3x191 is 15.8m