Byzantine Empire 1923-1924...

[Jefgte]

Here the 9250t -27kts cruiser project.

2T3x254, Byzantine Empire 2T3x254 laid down 1923

Displacement:
   9 250 t light; 9 760 t standard; 10 631 t normal; 11 327 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (490,81 ft / 490,81 ft) x 70,08 ft x (20,22 / 21,25 ft)
   (149,60 m / 149,60 m) x 21,36 m  x (6,16 / 6,48 m)

Armament:
      6 - 10,00" / 254 mm 45,0 cal guns - 504,26lbs / 228,73kg shells, 120 per gun
     Breech loading guns in turret on barbette mounts, 1923 Model
     2 x 3-gun mounts on centreline ends, evenly spread
      12 - 4,72" / 120 mm 45,0 cal guns - 53,18lbs / 24,12kg shells, 250 per gun
     Breech loading guns in deck and hoist mounts, 1923 Model
     6 x 2-gun mounts on sides, evenly spread
      2 - 3,00" / 76,2 mm 45,0 cal guns - 13,62lbs / 6,18kg shells, 300 per gun
     Anti-air guns in deck mounts, 1923 Model
     2 x Single mounts on sides, aft deck centre
      2 raised mounts
      4 - 1,85" / 47,0 mm 45,0 cal guns - 3,20lbs / 1,45kg shells, 400 per gun
     Quick firing guns in deck mounts, 1923 Model
     4 x Single mounts on side ends, evenly spread
      4 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, 1923 Model
     4 x Single mounts on side ends, evenly spread
      Weight of broadside 3 704 lbs / 1 680 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7,87" / 200 mm   318,24 ft / 97,00 m   9,84 ft / 3,00 m
   Ends:   1,97" / 50 mm   170,60 ft / 52,00 m   7,87 ft / 2,40 m
     1,97 ft / 0,60 m Unarmoured ends
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead - Strengthened structural bulkheads:
      1,18" / 30 mm   318,24 ft / 97,00 m   17,06 ft / 5,20 m
   Beam between torpedo bulkheads 70,08 ft / 21,36 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   9,84" / 250 mm   2,56" / 65 mm      7,87" / 200 mm
   2nd:   0,79" / 20 mm         -         1,57" / 40 mm
   3rd:   0,39" / 10 mm         -               -
   4th:   0,39" / 10 mm         -               -
   5th:   0,39" / 10 mm         -               -

   - Protected deck - single deck:
   For and Aft decks: 1,77" / 45 mm
   Forecastle: 1,18" / 30 mm  Quarter deck: 1,18" / 30 mm

   - Conning towers: Forward 7,87" / 200 mm, Aft 3,94" / 100 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 52 000 shp / 38 792 Kw = 27,12 kts
   Range 10 000nm at 12,00 kts
   Bunker at max displacement = 1 567 tons

Complement:
   523 - 680

Cost:
   £2,656 million / $10,625 million

Distribution of weights at normal displacement:
   Armament: 1 021 tons, 9,6 %
      - Guns: 1 021 tons, 9,6 %
   Armour: 2 751 tons, 25,9 %
      - Belts: 1 152 tons, 10,8 %
      - Torpedo bulkhead: 237 tons, 2,2 %
      - Armament: 509 tons, 4,8 %
      - Armour Deck: 730 tons, 6,9 %
      - Conning Towers: 123 tons, 1,2 %
   Machinery: 1 738 tons, 16,3 %
   Hull, fittings & equipment: 3 445 tons, 32,4 %
   Fuel, ammunition & stores: 1 381 tons, 13,0 %
   Miscellaneous weights: 295 tons, 2,8 %
      - Hull below water: 45 tons
      - Hull above water: 45 tons
      - On freeboard deck: 78 tons
      - Above deck: 127 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     14 052 lbs / 6 374 Kg = 28,1 x 10,0 " / 254 mm shells or 2,5 torpedoes
   Stability (Unstable if below 1.00): 1,10
   Metacentric height 3,5 ft / 1,1 m
   Roll period: 15,7 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,57
   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): 0,535 / 0,542
   Length to Beam Ratio: 7,00 : 1
   'Natural speed' for length: 22,15 kts
   Power going to wave formation at top speed: 58 %
   Trim (Max stability = 0, Max steadiness = 100): 67
   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:   17,50 %,  23,62 ft / 7,20 m,  20,34 ft / 6,20 m
      - Forward deck:   32,00 %,  20,34 ft / 6,20 m,  17,06 ft / 5,20 m
      - Aft deck:   32,00 %,  17,06 ft / 5,20 m,  17,06 ft / 5,20 m
      - Quarter deck:   18,50 %,  17,06 ft / 5,20 m,  17,06 ft / 5,20 m
      - Average freeboard:      18,39 ft / 5,61 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 84,6 %
      - Above water (accommodation/working, high = better): 154,1 %
   Waterplane Area: 23 670 Square feet or 2 199 Square metres
   Displacement factor (Displacement / loading): 108 %
   Structure weight / hull surface area: 125 lbs/sq ft or 610 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,93
      - Longitudinal: 1,81
      - Overall: 1,00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

102t for top fire control - 1914
25t for Marconi
32t for 8TTx21" HW
45t for additionnal ventilation
45t for additionnal pumps
46 t reserved

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

Now update to 29kts - 11000t

2T3x254, Byzantine Empire 2T3x254 laid down 1923

Displacement:
   11 000 t light; 11 548 t standard; 12 528 t normal; 13 312 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (572,83 ft / 572,83 ft) x 70,08 ft x (20,42 / 21,41 ft)
   (174,60 m / 174,60 m) x 21,36 m  x (6,22 / 6,53 m)

Armament:
      6 - 10,00" / 254 mm 45,0 cal guns - 504,26lbs / 228,73kg shells, 120 per gun
     Breech loading guns in turret on barbette mounts, 1923 Model
     2 x 3-gun mounts on centreline ends, evenly spread
      12 - 4,72" / 120 mm 45,0 cal guns - 53,18lbs / 24,12kg shells, 250 per gun
     Breech loading guns in deck and hoist mounts, 1923 Model
     6 x 2-gun mounts on sides, evenly spread
      2 - 3,00" / 76,2 mm 45,0 cal guns - 13,62lbs / 6,18kg shells, 300 per gun
     Anti-air guns in deck mounts, 1923 Model
     2 x Single mounts on sides, aft deck centre
      2 raised mounts
      4 - 1,85" / 47,0 mm 45,0 cal guns - 3,20lbs / 1,45kg shells, 400 per gun
     Quick firing guns in deck mounts, 1923 Model
     4 x Single mounts on side ends, evenly spread
      4 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, 1923 Model
     4 x Single mounts on side ends, evenly spread
      Weight of broadside 3 704 lbs / 1 680 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7,87" / 200 mm   439,63 ft / 134,00 m   9,84 ft / 3,00 m
   Ends:   1,18" / 30 mm   131,23 ft / 40,00 m   7,87 ft / 2,40 m
     1,97 ft / 0,60 m Unarmoured ends
     Main Belt covers 118 % of normal length

   - Torpedo Bulkhead - Strengthened structural bulkheads:
      1,18" / 30 mm   439,63 ft / 134,00 m   17,06 ft / 5,20 m
   Beam between torpedo bulkheads 52,03 ft / 15,86 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   9,84" / 250 mm   2,56" / 65 mm      7,87" / 200 mm
   2nd:   0,79" / 20 mm         -         1,57" / 40 mm
   3rd:   0,39" / 10 mm         -               -
   4th:   0,39" / 10 mm         -               -
   5th:   0,39" / 10 mm         -               -

   - Protected deck - single deck:
   For and Aft decks: 1,77" / 45 mm
   Forecastle: 1,18" / 30 mm  Quarter deck: 1,18" / 30 mm

   - Conning towers: Forward 7,87" / 200 mm, Aft 3,94" / 100 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 70 000 shp / 52 220 Kw = 29,07 kts
   Range 10 000nm at 12,00 kts
   Bunker at max displacement = 1 764 tons

Complement:
   591 - 769

Cost:
   £3,080 million / $12,318 million

Distribution of weights at normal displacement:
   Armament: 1 021 tons, 8,1 %
      - Guns: 1 021 tons, 8,1 %
   Armour: 3 258 tons, 26,0 %
      - Belts: 1 429 tons, 11,4 %
      - Torpedo bulkhead: 328 tons, 2,6 %
      - Armament: 512 tons, 4,1 %
      - Armour Deck: 852 tons, 6,8 %
      - Conning Towers: 137 tons, 1,1 %
   Machinery: 2 340 tons, 18,7 %
   Hull, fittings & equipment: 4 086 tons, 32,6 %
   Fuel, ammunition & stores: 1 528 tons, 12,2 %
   Miscellaneous weights: 295 tons, 2,4 %
      - Hull below water: 45 tons
      - Hull above water: 45 tons
      - On freeboard deck: 78 tons
      - Above deck: 127 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     15 998 lbs / 7 257 Kg = 32,0 x 10,0 " / 254 mm shells or 2,6 torpedoes
   Stability (Unstable if below 1.00): 1,09
   Metacentric height 3,5 ft / 1,1 m
   Roll period: 15,8 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,56
   Seaboat quality  (Average = 1.00): 1,05

Hull form characteristics:
   Hull has a flush deck,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,535 / 0,542
   Length to Beam Ratio: 8,17 : 1
   'Natural speed' for length: 23,93 kts
   Power going to wave formation at top speed: 56 %
   Trim (Max stability = 0, Max steadiness = 100): 67
   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:   17,50 %,  23,79 ft / 7,25 m,  20,51 ft / 6,25 m
      - Forward deck:   32,00 %,  20,51 ft / 6,25 m,  17,22 ft / 5,25 m
      - Aft deck:   32,00 %,  17,22 ft / 5,25 m,  17,22 ft / 5,25 m
      - Quarter deck:   18,50 %,  17,22 ft / 5,25 m,  17,22 ft / 5,25 m
      - Average freeboard:      18,55 ft / 5,66 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 117,7 %
      - Above water (accommodation/working, high = better): 160,7 %
   Waterplane Area: 27 625 Square feet or 2 566 Square metres
   Displacement factor (Displacement / loading): 109 %
   Structure weight / hull surface area: 125 lbs/sq ft or 609 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,97
      - Longitudinal: 1,33
      - Overall: 1,00
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

102t for top fire control - 1914
25t for Marconi
32t for 8TTx21" HW
45t for additionnal ventilation
45t for additionnal pumps
46 t reserved

[TacCovert4]

See, all of these make me wonder if I shouldn't either resurrect the 6x280mm light battlecruiser designs,  or focus primarily on building smaller 6x240mm cruisers instead of the 9x240mm cruisers I had been working on.

[Jefgte]

See, all of these make me wonder if I shouldn't either resurrect the 6x280mm light battlecruiser designs,  or focus primarily on building smaller 6x240mm cruisers instead of the 9x240mm cruisers I had been working on.

Panzerschiff config  ;)

[The Rock Doctor]

I reckon 27 knots is too slow for a cruiser at that point in time so would look to the 11,000 t version.

[TacCovert4]

That is the biggest weakness. 

Also why my own 6x11in ships are so much bigger than the Byzantine 6 x 10in ships, heck my thoughts on a 6 x 9in ship are STILL bigger by a couple thousand tons.  But then I'm going with a 30-32kt speed band for my new cruisers, in order to keep them from being run down by battleships currently in production.

[Jefgte]

Watching Aztec, Vilnius & Roman fast battleships SS.
Byzantium calculates fast battleships as well.
2 types have preference.
Fleet BB:
2 x LD 1923 - 35500t - 3T3x381 - B340 - 29kts.

Panzerschiff type BB:
2 x LD 1924 - 21500t - 2T3x343 - B340 - 29kts.

Total: 114 BP  :o
-------------------
Hmmmmm... Parthians are going to study fast BBs.

[The Rock Doctor]

It adds up pretty quick.  I figure I need a capital ship holiday for a year or two to catch up on some cruiser/destroyer construction.

[TacCovert4]

I'm curious how you're getting 2T3 343mm and 29kts on a 21,500t hull.  That hull has to be screaming.  Or the belt has to be pretty narrow, maybe deck protection a bit light?  Over about 26kts is where the speed is starting to really cost, and that's pretty light tonnage for that much firepower and speed.

[Jefgte]

I'm curious how you're getting 2T3 343mm and 29kts on a 21,500t hull.  That hull has to be screaming.  Or the belt has to be pretty narrow, maybe deck protection a bit light?  Over about 26kts is where the speed is starting to really cost, and that's pretty light tonnage for that much firepower and speed.

Your right, there was a bullet in the thickness of the deck & the armor height.
Now this Panzerschiff is over 23000t.

[Jefgte]

Initially, D11 was to be built in 1922.
Replacement of old colonial TGB500 becoming imperative (they will be replaced by TGB800 currently under construction), D11 are delayed to 1924.

Byzantium has recently had T2x140mm/50cal (Hood guns) and T2x152mm/45 (Warspite guns).
SS of the enlarged D11s, equipped with its turrets, is under study.

D11, Byzantine Empire Improved D10 (1920-1400t) laid down 1924

Displacement:
   1 600 t light; 1 679 t standard; 1 894 t normal; 2 066 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (370,72 ft / 367,45 ft) x 35,50 ft x (12,55 / 13,30 ft)
   (113,00 m / 112,00 m) x 10,82 m  x (3,83 / 4,05 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, 1924 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, 1924 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, 1924 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, 1924 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, 37 400 shp / 27 900 Kw = 32,44 kts
   Range 7 000nm at 12,00 kts
   Bunker at max displacement = 387 tons

Complement:
   143 - 186

Cost:
   £0,648 million / $2,592 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: 981 tons, 51,8 %
   Hull, fittings & equipment: 454 tons, 24,0 %
   Fuel, ammunition & stores: 294 tons, 15,5 %
   Miscellaneous weights: 108 tons, 5,7 %
      - On freeboard deck: 78 tons
      - Above deck: 30 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     485 lbs / 220 Kg = 9,2 x 4,7 " / 120 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,23
   Metacentric height 1,6 ft / 0,5 m
   Roll period: 12,0 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,30
   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): 0,405 / 0,417
   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): 176,7 %
      - Above water (accommodation/working, high = better): 144,3 %
   Waterplane Area: 8 053 Square feet or 748 Square metres
   Displacement factor (Displacement / loading): 69 %
   Structure weight / hull surface area: 33 lbs/sq ft or 160 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
22t reserved for new material, armament, minen.

Trial speed: 33kts
Bonus: 0.56

[Jefgte]

Here is TGB2400 with biger hull than D11 to have 3T2x140/50.
With the same engines (37400SHP) the speed is 30.75kts.

TGB2400, Byzantine Empire Improved D11 (1924-1600t) laid down 1923

Displacement:
   2 400 t light; 2 532 t standard; 2 849 t normal; 3 102 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (406,97 ft / 403,54 ft) x 40,35 ft x (14,58 / 15,45 ft)
   (124,04 m / 123,00 m) x 12,30 m  x (4,44 / 4,71 m)

Armament:
      6 - 5,51" / 140 mm 50,0 cal guns - 81,99lbs / 37,19kg shells, 240 per gun
     Quick firing guns in deck and hoist mounts, 1923 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, 260 per gun
     Anti-air gun in deck mount, 1923 Model
     1 x Single mount on centreline, forward 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, 1923 Model
     4 x Single mounts on sides, forward deck aft
      4 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, 1923 Model
     2 x Single mounts on sides, forward deck forward
      Weight of broadside 519 lbs / 235 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1,97" / 50 mm   1,18" / 30 mm      1,18" / 30 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, 37 400 shp / 27 901 Kw = 30,75 kts
   Range 8 000nm at 12,00 kts
   Bunker at max displacement = 570 tons

Complement:
   194 - 253

Cost:
   £0,896 million / $3,585 million

Distribution of weights at normal displacement:
   Armament: 133 tons, 4,7 %
      - Guns: 133 tons, 4,7 %
   Armour: 36 tons, 1,2 %
      - Armament: 36 tons, 1,2 %
   Machinery: 1 189 tons, 41,7 %
   Hull, fittings & equipment: 927 tons, 32,5 %
   Fuel, ammunition & stores: 449 tons, 15,7 %
   Miscellaneous weights: 116 tons, 4,1 %
      - On freeboard deck: 78 tons
      - Above deck: 38 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1 133 lbs / 514 Kg = 13,5 x 5,5 " / 140 mm shells or 0,5 torpedoes
   Stability (Unstable if below 1.00): 1,06
   Metacentric height 1,4 ft / 0,4 m
   Roll period: 14,2 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,63
   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): 0,420 / 0,431
   Length to Beam Ratio: 10,00 : 1
   'Natural speed' for length: 20,09 kts
   Power going to wave formation at top speed: 60 %
   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 %,  19,44 ft / 5,93 m,  16,49 ft / 5,03 m
      - Forward deck:   32,50 %,  16,49 ft / 5,03 m,  13,53 ft / 4,13 m
      - Aft deck:   32,50 %,  13,53 ft / 4,13 m,  13,53 ft / 4,13 m
      - Quarter deck:   17,50 %,  13,53 ft / 4,13 m,  14,19 ft / 4,33 m
      - Average freeboard:      14,79 ft / 4,51 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 154,5 %
      - Above water (accommodation/working, high = better): 142,3 %
   Waterplane Area: 10 153 Square feet or 943 Square metres
   Displacement factor (Displacement / loading): 89 %
   Structure weight / hull surface area: 55 lbs/sq ft or 270 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,70
      - Longitudinal: 1,53
      - Overall: 0,75
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

13t for 1918 top mast rangefinder
25t for LR marconi
12t for additionnal engines ventillation
32t for 8TTx533 HW
15t for improved Hydrophone
5t for 50x90DC
14t reserved for new material, armament, minen.

Trial speed: 33kts
Bonus: 0.57

[The Rock Doctor]

That last one's an intriguing design.

[Jefgte]

For better stability all turrets are on the main deck => Misc weight increase by 30t.
Recoil decrease form 63 to 52.

TGB2400, Byzantine Empire laid down 1923

Displacement:
   2 400 t light; 2 532 t standard; 2 849 t normal; 3 102 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (406,97 ft / 403,54 ft) x 40,35 ft x (14,58 / 15,45 ft)
   (124,04 m / 123,00 m) x 12,30 m  x (4,44 / 4,71 m)

Armament:
      6 - 5,51" / 140 mm 50,0 cal guns - 81,99lbs / 37,19kg shells, 240 per gun
     Quick firing guns in deck and hoist mounts, 1923 Model
     3 x Twin mounts on centreline ends, majority aft
      1 - 3,00" / 76,2 mm 45,0 cal gun - 13,62lbs / 6,18kg shells, 260 per gun
     Anti-air gun in deck mount, 1923 Model
     1 x Single mount on centreline, forward 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, 1923 Model
     4 x Single mounts on sides, forward deck aft
      4 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, 1923 Model
     2 x Single mounts on sides, forward deck forward
      Weight of broadside 519 lbs / 235 kg

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1,97" / 50 mm   1,18" / 30 mm      1,18" / 30 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, 37 400 shp / 27 901 Kw = 30,75 kts
   Range 8 000nm at 12,00 kts
   Bunker at max displacement = 570 tons

Complement:
   194 - 253

Cost:
   £0,894 million / $3,577 million

Distribution of weights at normal displacement:
   Armament: 133 tons, 4,7 %
      - Guns: 133 tons, 4,7 %
   Armour: 35 tons, 1,2 %
      - Armament: 35 tons, 1,2 %
   Machinery: 1 184 tons, 41,6 %
   Hull, fittings & equipment: 901 tons, 31,6 %
   Fuel, ammunition & stores: 449 tons, 15,7 %
   Miscellaneous weights: 146 tons, 5,1 %
      - On freeboard deck: 108 tons
      - Above deck: 38 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     1 155 lbs / 524 Kg = 13,8 x 5,5 " / 140 mm shells or 0,5 torpedoes
   Stability (Unstable if below 1.00): 1,08
   Metacentric height 1,5 ft / 0,5 m
   Roll period: 13,9 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,52
   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): 0,420 / 0,431
   Length to Beam Ratio: 10,00 : 1
   'Natural speed' for length: 20,09 kts
   Power going to wave formation at top speed: 60 %
   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 %,  19,44 ft / 5,93 m,  16,49 ft / 5,03 m
      - Forward deck:   32,50 %,  16,49 ft / 5,03 m,  13,53 ft / 4,13 m
      - Aft deck:   32,50 %,  13,53 ft / 4,13 m,  13,53 ft / 4,13 m
      - Quarter deck:   17,50 %,  13,53 ft / 4,13 m,  14,19 ft / 4,33 m
      - Average freeboard:      14,79 ft / 4,51 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 154,0 %
      - Above water (accommodation/working, high = better): 142,3 %
   Waterplane Area: 10 153 Square feet or 943 Square metres
   Displacement factor (Displacement / loading): 88 %
   Structure weight / hull surface area: 54 lbs/sq ft or 263 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,70
      - Longitudinal: 1,52
      - Overall: 0,75
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

13t for 1918 top mast rangefinder
25t for LR marconi
12t for additionnal engines ventillation
32t for 8TTx533 HW
15t for improved Hydrophone
5t for 50x90DC
44t reserved for new material, armament, minen.

Trial speed: 33kts
Bonus: 0.57

[TacCovert4]

There's so much you can do with 2500t Destroyers.  I cant' wait until I can build my 'super Tribal' class.

[Jefgte]

D11, Byzantine Empire Improved D10 laid down 1923

(Range +500nm add 2x47/45)

Displacement:
   1 400 t light; 1 465 t standard; 1 651 t normal; 1 799 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (362,49 ft / 360,89 ft) x 35,50 ft x (11,27 / 11,93 ft)
   (110,49 m / 110,00 m) x 10,82 m  x (3,44 / 3,64 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, 1923 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, 1923 Model
     1 x Single mount on centreline, forward 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, 1923 Model
     4 x Single mounts on sides, forward deck aft
      4 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, 1923 Model
     2 x Single mounts on sides, forward deck forward
      Weight of broadside 239 lbs / 108 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, 31 790 shp / 23 715 Kw = 31,80 kts
   Range 6 500nm at 12,00 kts
   Bunker at max displacement = 334 tons

Complement:
   129 - 168

Cost:
   £0,518 million / $2,071 million

Distribution of weights at normal displacement:
   Armament: 43 tons, 2,6 %
      - Guns: 43 tons, 2,6 %
   Armour: 10 tons, 0,6 %
      - Armament: 10 tons, 0,6 %
   Machinery: 838 tons, 50,8 %
   Hull, fittings & equipment: 402 tons, 24,4 %
   Fuel, ammunition & stores: 250 tons, 15,2 %
   Miscellaneous weights: 107 tons, 6,5 %
      - On freeboard deck: 78 tons
      - Above deck: 29 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     464 lbs / 210 Kg = 8,8 x 4,7 " / 120 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,23
   Metacentric height 1,6 ft / 0,5 m
   Roll period: 12,0 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,23
   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 / 0,412
   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): 171,9 %
      - Above water (accommodation/working, high = better): 150,9 %
   Waterplane Area: 7 886 Square feet or 733 Square metres
   Displacement factor (Displacement / loading): 70 %
   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
20t reserved for new material, armament,minen.

Trial speed: 32.5kts
Bonus: 0.7