Byzantine Empire Colonial Ships

[Jefgte]

I don't want to bend the AUX rules.
I prefer to build Patrol Gunboats.

[Kaiser Kirk]

That is what I wound up doing with my Mackerel class. While it was slow enough, to do the role I wanted, I couldn't get under the 2%, so I paid full price.

[Jefgte]

I prefer this one, for patrols, escorts & reinforcement of the Fleet protection.

Main Guns => 3 x 102/45 can be replaced by 2 x 120/45 (?)

TGB650, Byzantine Empire Patrol Boat laid down 1922

SS with 3x102/45

Displacement:
   650 t light; 676 t standard; 728 t normal; 769 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (244,05 ft / 242,78 ft) x 26,25 ft x (9,43 / 9,79 ft)
   (74,39 m / 74,00 m) x 8,00 m  x (2,87 / 2,98 m)

Armament:
      3 - 4,00" / 102 mm 45,0 cal guns - 32,27lbs / 14,64kg shells, 160 per gun
     Quick firing guns in deck mounts, 1922 Model
     3 x Single mounts on centreline ends, majority forward
      1 raised mount - superfiring
      1 - 3,00" / 76,2 mm 45,0 cal gun - 13,62lbs / 6,18kg shells, 180 per gun
     Anti-air gun in deck mount, 1922 Model
     1 x Single mount on centreline, aft deck aft
      1 raised mount
      2 - 1,85" / 47,0 mm 45,0 cal guns - 3,19lbs / 1,45kg shells, 380 per gun
     Quick firing guns in deck mounts, 1922 Model
     2 x Single mounts on sides, forward deck aft
      2 raised mounts
      4 - 0,30" / 7,7 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 3 000 per gun
     Machine guns in deck mounts, 1922 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 117 lbs / 53 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:   0,24" / 6 mm         -               -

Machinery:
   Coal and oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 12 132 shp / 9 050 Kw = 27,00 kts
   Range 4 000nm at 10,00 kts
   Bunker at max displacement = 92 tons (25% coal)

Complement:
   69 - 91

Cost:
   £0,206 million / $0,823 million

Distribution of weights at normal displacement:
   Armament: 22 tons, 3,0 %
      - Guns: 22 tons, 3,0 %
   Armour: 8 tons, 1,0 %
      - Armament: 8 tons, 1,0 %
   Machinery: 334 tons, 45,9 %
   Hull, fittings & equipment: 239 tons, 32,8 %
   Fuel, ammunition & stores: 77 tons, 10,6 %
   Miscellaneous weights: 48 tons, 6,6 %
      - On freeboard deck: 21 tons
      - Above deck: 27 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     310 lbs / 141 Kg = 9,7 x 4,0 " / 102 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,05
   Metacentric height 0,7 ft / 0,2 m
   Roll period: 12,8 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,37
   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): 0,424 / 0,431
   Length to Beam Ratio: 9,25 : 1
   'Natural speed' for length: 15,58 kts
   Power going to wave formation at top speed: 67 %
   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 %,  14,47 ft / 4,41 m,  12,50 ft / 3,81 m
      - Forward deck:   33,00 %,  12,50 ft / 3,81 m,  10,53 ft / 3,21 m
      - Aft deck:   33,00 %,  10,53 ft / 3,21 m,  10,53 ft / 3,21 m
      - Quarter deck:   16,00 %,  10,53 ft / 3,21 m,  11,19 ft / 3,41 m
      - Average freeboard:      11,40 ft / 3,48 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 156,9 %
      - Above water (accommodation/working, high = better): 121,2 %
   Waterplane Area: 3 984 Square feet or 370 Square metres
   Displacement factor (Displacement / loading): 76 %
   Structure weight / hull surface area: 32 lbs/sq ft or 156 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,65
      - Longitudinal: 2,85
      - Overall: 0,75
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

2t for top fire control
25t Marconi
9t for 3TTx533
5t Hydrophone
3t for 30x90kg DC
2t reserved

Trial speed: 28,5kts
Bonus: 1,5

---------
Identical SS with 2x120/45

TGB650, Byzantine Empire Patrol Boat laid down 1922

Displacement:
   650 t light; 676 t standard; 728 t normal; 769 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (244,05 ft / 242,78 ft) x 26,25 ft x (9,43 / 9,79 ft)
   (74,39 m / 74,00 m) x 8,00 m  x (2,87 / 2,98 m)

Armament:
      2 - 4,72" / 120 mm 45,0 cal guns - 53,03lbs / 24,05kg shells, 160 per gun
     Quick firing guns in deck mounts, 1922 Model
     2 x Single mounts on centreline ends, evenly spread
      1 - 3,00" / 76,2 mm 45,0 cal gun - 13,62lbs / 6,18kg shells, 180 per gun
     Anti-air gun in deck mount, 1922 Model
     1 x Single mount on centreline, aft deck aft
      1 raised mount
      2 - 1,85" / 47,0 mm 45,0 cal guns - 3,19lbs / 1,45kg shells, 380 per gun
     Quick firing guns in deck mounts, 1922 Model
     2 x Single mounts on sides, forward deck forward
      2 raised mounts
      4 - 0,30" / 7,7 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 3 000 per gun
     Machine guns in deck mounts, 1922 Model
     4 x Single mounts on sides, evenly spread
      4 raised mounts
      Weight of broadside 126 lbs / 57 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, 12 132 shp / 9 050 Kw = 27,00 kts
   Range 4 000nm at 10,00 kts
   Bunker at max displacement = 92 tons (25% coal)

Complement:
   69 - 91

Cost:
   £0,206 million / $0,823 million

Distribution of weights at normal displacement:
   Armament: 23 tons, 3,1 %
      - Guns: 23 tons, 3,1 %
   Armour: 9 tons, 1,2 %
      - Armament: 9 tons, 1,2 %
   Machinery: 332 tons, 45,6 %
   Hull, fittings & equipment: 235 tons, 32,3 %
   Fuel, ammunition & stores: 78 tons, 10,7 %
   Miscellaneous weights: 51 tons, 7,0 %
      - On freeboard deck: 24 tons
      - Above deck: 27 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     310 lbs / 140 Kg = 5,9 x 4,7 " / 120 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,05
   Metacentric height 0,7 ft / 0,2 m
   Roll period: 12,8 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,37
   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): 0,424 / 0,431
   Length to Beam Ratio: 9,25 : 1
   'Natural speed' for length: 15,58 kts
   Power going to wave formation at top speed: 67 %
   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 %,  14,47 ft / 4,41 m,  12,50 ft / 3,81 m
      - Forward deck:   33,00 %,  12,50 ft / 3,81 m,  10,53 ft / 3,21 m
      - Aft deck:   33,00 %,  10,53 ft / 3,21 m,  10,53 ft / 3,21 m
      - Quarter deck:   16,00 %,  10,53 ft / 3,21 m,  11,19 ft / 3,41 m
      - Average freeboard:      11,40 ft / 3,48 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 156,5 %
      - Above water (accommodation/working, high = better): 121,2 %
   Waterplane Area: 3 984 Square feet or 370 Square metres
   Displacement factor (Displacement / loading): 76 %
   Structure weight / hull surface area: 32 lbs/sq ft or 154 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,64
      - Longitudinal: 2,89
      - Overall: 0,75
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

2t for top fire control
25t Marconi
9t for 3TTx533
5t Hydrophone
4t for 40x90kg DC
5t reserved

Trial speed: 28,5kts
Bonus: 1,5

[Jefgte]

An other 27kts TGB for colonial works & Fleet complement.

TGB900, Byzantine Empire Torpedo Gun Boat laid down 1922

Displacement:
   900 t light; 941 t standard; 1 003 t normal; 1 053 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (261,98 ft / 260,50 ft) x 32,15 ft x (10,12 / 10,46 ft)
   (79,85 m / 79,40 m) x 9,80 m  x (3,09 / 3,19 m)

Armament:
      4 - 4,72" / 120 mm 45,0 cal guns - 53,02lbs / 24,05kg shells, 150 per gun
     Quick firing guns in deck and hoist mounts, 1922 Model
     2 x 2-gun mounts on centreline ends, evenly spread
      1 - 3,00" / 76,2 mm 45,0 cal gun - 13,62lbs / 6,18kg shells, 170 per gun
     Anti-air gun in deck mount, 1922 Model
     1 x Single mount on centreline, aft deck aft
      1 raised mount
      2 - 1,85" / 47,0 mm 45,0 cal guns - 3,20lbs / 1,45kg shells, 350 per gun
     Quick firing guns in deck mounts, 1922 Model
     2 x Single mounts on sides, forward deck forward
      2 raised mounts
      4 - 0,30" / 7,7 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 3 000 per gun
     Machine guns in deck mounts, 1922 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
      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:   0,24" / 6 mm         -               -

Machinery:
   Coal and oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 14 521 shp / 10 833 Kw = 27,00 kts
   Range 4 000nm at 10,00 kts
   Bunker at max displacement = 112 tons (25% coal)

Complement:
   88 - 115

Cost:
   £0,304 million / $1,214 million

Distribution of weights at normal displacement:
   Armament: 62 tons, 6,2 %
      - Guns: 62 tons, 6,2 %
   Armour: 7 tons, 0,7 %
      - Armament: 7 tons, 0,7 %
   Machinery: 417 tons, 41,6 %
   Hull, fittings & equipment: 362 tons, 36,1 %
   Fuel, ammunition & stores: 103 tons, 10,2 %
   Miscellaneous weights: 53 tons, 5,3 %
      - On freeboard deck: 22 tons
      - Above deck: 31 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     463 lbs / 210 Kg = 8,8 x 4,7 " / 120 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,05
   Metacentric height 1,0 ft / 0,3 m
   Roll period: 13,5 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,60
   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): 0,414 / 0,421
   Length to Beam Ratio: 8,10 : 1
   'Natural speed' for length: 16,14 kts
   Power going to wave formation at top speed: 67 %
   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 %,  16,98 ft / 5,18 m,  14,35 ft / 4,38 m
      - Forward deck:   33,00 %,  14,35 ft / 4,38 m,  12,06 ft / 3,68 m
      - Aft deck:   33,00 %,  12,06 ft / 3,68 m,  12,06 ft / 3,68 m
      - Quarter deck:   16,00 %,  12,06 ft / 3,68 m,  12,39 ft / 3,78 m
      - Average freeboard:      13,06 ft / 3,98 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 154,2 %
      - Above water (accommodation/working, high = better): 142,2 %
   Waterplane Area: 5 200 Square feet or 483 Square metres
   Displacement factor (Displacement / loading): 79 %
   Structure weight / hull surface area: 42 lbs/sq ft or 203 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,64
      - Longitudinal: 3,08
      - Overall: 0,75
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

6t for top fire control
25t Marconi
9t for 3TTx533
5t Hydrophone
3t for 30x90kg DC
5t reserved

Trial speed: 28kts
Bonus: 1

[Kaiser Kirk]

I prefer this one, for patrols, escorts & reinforcement of the Fleet protection.

Main Guns => 3 x 102/45 can be replaced by 2 x 120/45 (?)

Yes.

The 'Main Guns' part in the reconstruction/refurbishment rules is not well worded.
That should probably be revised to 'turreted guns'.

Deck guns, even if the 'main guns' can be basic refitted to something else. 

[Jefgte]

For TGB650:
It is not a reconstruction but a choice to be defined for 1922 construction.
3 x 102 => 30 to 45 rpm - 14kg shell, or
2 x 120 => 20 to 24 rpm - 22kg shell.

[Kaiser Kirk]

Ahh sorry, I misunderstood.

I really think you should go for an all 8mm MG layout.
My ships would really appreciate that.
...
I will leave my OP Force's gun choice uncommented on, unless asked.

Oh, peeking at NavWeaps,  I think those ROF are high when compared to historical mounts.
However, with longer ranged shots, there is a limit on ROF due to the need to spot for accuracy,
something that can be disregarded when one starts to hit.

[Jefgte]

Final type, TGB800 with 2T2x102 choose for the fire density. Excellent vs MTB & TB, correct vs DD.

TGB800, Byzantine Empire Colonial Torpedo Gun Boat laid down 1922

Displacement:
   800 t light; 846 t standard; 919 t normal; 977 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (260,56 ft / 259,19 ft) x 29,53 ft x (9,87 / 10,29 ft)
   (79,42 m / 79,00 m) x 9,00 m  x (3,01 / 3,14 m)

Armament:
      4 - 4,00" / 102 mm 45,0 cal guns - 32,27lbs / 14,64kg shells, 250 per gun
     Quick firing guns in deck mounts, 1922 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, 300 per gun
     Anti-air gun in deck mount, 1922 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, 1922 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, 4 000 per gun
     Machine guns in deck mounts, 1922 Model
     2 x Single mounts on sides, forward deck forward
      2 raised mounts
      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, 13 780 shp / 10 280 Kw = 27,03 kts
   Range 5 000nm at 10,00 kts
   Bunker at max displacement = 131 tons (25% coal)

Complement:
   83 - 108

Cost:
   £0,254 million / $1,017 million

Distribution of weights at normal displacement:
   Armament: 25 tons, 2,8 %
      - Guns: 25 tons, 2,8 %
   Armour: 8 tons, 0,9 %
      - Armament: 8 tons, 0,9 %
   Machinery: 410 tons, 44,6 %
   Hull, fittings & equipment: 286 tons, 31,1 %
   Fuel, ammunition & stores: 119 tons, 12,9 %
   Miscellaneous weights: 71 tons, 7,7 %
      - On freeboard deck: 43 tons
      - Above deck: 28 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     412 lbs / 187 Kg = 12,9 x 4,0 " / 102 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,13
   Metacentric height 1,0 ft / 0,3 m
   Roll period: 12,4 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,25
   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): 0,426 / 0,434
   Length to Beam Ratio: 8,78 : 1
   'Natural speed' for length: 16,10 kts
   Power going to wave formation at top speed: 66 %
   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 %,  15,75 ft / 4,80 m,  13,45 ft / 4,10 m
      - Forward deck:   33,00 %,  13,45 ft / 4,10 m,  10,83 ft / 3,30 m
      - Aft deck:   33,00 %,  10,83 ft / 3,30 m,  10,83 ft / 3,30 m
      - Quarter deck:   16,00 %,  10,83 ft / 3,30 m,  11,48 ft / 3,50 m
      - Average freeboard:      11,95 ft / 3,64 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 154,6 %
      - Above water (accommodation/working, high = better): 126,3 %
   Waterplane Area: 4 792 Square feet or 445 Square metres
   Displacement factor (Displacement / loading): 83 %
   Structure weight / hull surface area: 34 lbs/sq ft or 166 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,65
      - Longitudinal: 2,46
      - Overall: 0,75
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

3t for top mast rangefinder-1914 (14 000m)
25t for Long Range Marconi
9t for 1x3TTx533
4t for forced ventilation
5t for Hydrophone
5t for 50x90kg DC
20t reserved for new material, armament or 20 minen.

Trial speed: 28kts
Bonus: 0.96

[Jefgte]

Update TGB 800 to TGB860 (1922 to 1924)

2T2x120 was 2T2x102
7000nm range was 5000nm

TGB860, Byzantine Empire Colonial Torpedo Gun Boat laid down 1924

Displacement:
   860 t light; 916 t standard; 1 021 t normal; 1 104 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (260,58 ft / 259,19 ft) x 29,86 ft x (10,84 / 11,44 ft)
   (79,42 m / 79,00 m) x 9,10 m  x (3,30 / 3,49 m)

Armament:
      4 - 4,72" / 120 mm 45,0 cal guns - 50,00lbs / 22,68kg shells, 230 per gun
     Quick firing guns in deck mounts, 1924 Model
     2 x Twin mounts on centreline ends, evenly spread
      1 - 3,00" / 76,2 mm 45,0 cal gun - 11,99lbs / 5,44kg shells, 320 per gun
     Anti-air gun in deck mount, 1924 Model
     1 x Single mount on centreline, aft deck aft
      1 raised mount
      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, 1924 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, 4 000 per gun
     Machine guns in deck mounts, 1924 Model
     2 x Single mounts on sides, forward deck forward
      2 raised mounts
      Weight of broadside 225 lbs / 102 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, 14 685 shp / 10 955 Kw = 27,00 kts
   Range 7 000nm at 10,00 kts
                3150nm at 14kts
                1190nm at 20kts
                 465nm at 27kts

   Bunker at max displacement = 188 tons (25% coal/wood)

Complement:
   89 - 117

Cost:
   £0,320 million / $1,279 million

Distribution of weights at normal displacement:
   Armament: 36 tons, 3,6 %
      - Guns: 36 tons, 3,6 %
   Armour: 8 tons, 0,8 %
      - Armament: 8 tons, 0,8 %
   Machinery: 441 tons, 43,2 %
   Hull, fittings & equipment: 303 tons, 29,7 %
   Fuel, ammunition & stores: 160 tons, 15,7 %
   Miscellaneous weights: 72 tons, 7,1 %
      - On freeboard deck: 43 tons
      - Above deck: 29 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     448 lbs / 203 Kg = 8,5 x 4,7 " / 120 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,14
   Metacentric height 1,0 ft / 0,3 m
   Roll period: 12,3 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,36
   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): 0,426 / 0,437
   Length to Beam Ratio: 8,68 : 1
   'Natural speed' for length: 16,10 kts
   Power going to wave formation at top speed: 66 %
   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 %,  15,91 ft / 4,85 m,  13,62 ft / 4,15 m
      - Forward deck:   33,00 %,  13,62 ft / 4,15 m,  10,99 ft / 3,35 m
      - Aft deck:   33,00 %,  10,99 ft / 3,35 m,  10,99 ft / 3,35 m
      - Quarter deck:   16,00 %,  10,99 ft / 3,35 m,  11,65 ft / 3,55 m
      - Average freeboard:      12,11 ft / 3,69 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 152,9 %
      - Above water (accommodation/working, high = better): 120,8 %
   Waterplane Area: 4 845 Square feet or 450 Square metres
   Displacement factor (Displacement / loading): 86 %
   Structure weight / hull surface area: 35 lbs/sq ft or 173 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,65
      - Longitudinal: 2,63
      - Overall: 0,75
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

4t for top mast rangefinder-1914 (14 000m)
25t for Long Range Marconi
9t for 1x3TTx533
4t for forced ventilation
5t for Hydrophone
5t for 50x90kg DC
20t reserved for new material, armament or 20 minen.

Trial speed: 28kts
Bonus: 1

[Kaiser Kirk]

Nice use of the 0.75 hull

[Jefgte]

Nice use of the 0.75 hull

... & 80m shipyards.

;)

[Jefgte]

C8 - LD 1922 (4750t) was 5000nm range. improved C8 is 6000nm range
Identical armament

(It's always BPs that set the limits.)

Improved C8, Byzantine Empire Colonial Cruiser laid down 1923

Husko - Hiazu - Hemta - Hama

Displacement:
   4 780 t light; 5 042 t standard; 5 419 t normal; 5 721 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (408,79 ft / 408,79 ft) x 54,46 ft x (17,75 / 18,47 ft)
   (124,60 m / 124,60 m) x 16,60 m  x (5,41 / 5,63 m)

Armament:
      6 - 7,52" / 191 mm 45,0 cal guns - 200,00lbs / 90,72kg shells, 170 per gun
     Breech loading guns in turret on barbette mounts, 1923 Model
     2 x 3-gun mounts on centreline ends, evenly spread
      6 - 4,72" / 120 mm 45,0 cal guns - 50,00lbs / 22,68kg shells, 190 per gun
     Quick firing guns in deck and hoist mounts, 1923 Model
     6 x Single mounts on sides, evenly spread
      2 - 3,00" / 76,2 mm 45,0 cal guns - 12,50lbs / 5,67kg shells, 240 per gun
     Anti-air guns in deck mounts, 1923 Model
     2 x Single mounts on sides, forward deck aft
      2 raised mounts
      4 - 1,85" / 47,0 mm 45,0 cal guns - 3,00lbs / 1,36kg shells, 800 per gun
     Quick firing guns in deck mounts, 1923 Model
     4 x Single mounts on sides, aft 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
      4 raised mounts
      Weight of broadside 1 537 lbs / 697 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3,94" / 100 mm   265,75 ft / 81,00 m   9,19 ft / 2,80 m
   Ends:   1,38" / 35 mm   141,08 ft / 43,00 m   7,87 ft / 2,40 m
     1,97 ft / 0,60 m Unarmoured ends
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5,51" / 140 mm   0,98" / 25 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: 1,57" / 40 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, 35 000 shp / 26 110 Kw = 27,00 kts
   Range 6 000nm at 12,00 kts
   Bunker at max displacement = 680 tons (25% coal)

Complement:
   315 - 410

Cost:
   £1,421 million / $5,683 million

Distribution of weights at normal displacement:
   Armament: 457 tons, 8,4 %
      - Guns: 457 tons, 8,4 %
   Armour: 1 033 tons, 19,1 %
      - Belts: 462 tons, 8,5 %
      - Armament: 131 tons, 2,4 %
      - Armour Deck: 399 tons, 7,4 %
      - Conning Towers: 42 tons, 0,8 %
   Machinery: 1 197 tons, 22,1 %
   Hull, fittings & equipment: 1 923 tons, 35,5 %
   Fuel, ammunition & stores: 640 tons, 11,8 %
   Miscellaneous weights: 169 tons, 3,1 %
      - Hull below water: 23 tons
      - Hull above water: 23 tons
      - On freeboard deck: 52 tons
      - Above deck: 71 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     6 294 lbs / 2 855 Kg = 29,6 x 7,5 " / 191 mm shells or 1,2 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): 0,61
   Seaboat quality  (Average = 1.00): 1,03

Hull form characteristics:
   Hull has a flush deck,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,480 / 0,487
   Length to Beam Ratio: 7,51 : 1
   'Natural speed' for length: 20,22 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:   17,50 %,  21,65 ft / 6,60 m,  18,70 ft / 5,70 m
      - Forward deck:   33,00 %,  18,70 ft / 5,70 m,  15,75 ft / 4,80 m
      - Aft deck:   33,00 %,  15,75 ft / 4,80 m,  15,75 ft / 4,80 m
      - Quarter deck:   16,50 %,  15,75 ft / 4,80 m,  15,75 ft / 4,80 m
      - Average freeboard:      16,96 ft / 5,17 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 99,5 %
      - Above water (accommodation/working, high = better): 145,2 %
   Waterplane Area: 14 570 Square feet or 1 354 Square metres
   Displacement factor (Displacement / loading): 107 %
   Structure weight / hull surface area: 96 lbs/sq ft or 467 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,91
      - Longitudinal: 2,17
      - Overall: 1,00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

46t for top fire control
25t for Marconi
23t for additionnal pumps
23t for additionnal ventilation
18t for 6TTx21"
34t reserved

[Jefgte]

I may have anticipated / misunderstood the rule:

1920:  No restriction (high or low) on caliber of turreted guns. Cruisers under 3000 tons may have composite hull strength > 0.75, Cruisers under 8000 tons may have composite hull strength >0.90

This techno is just 5.00$ in 1924H1... not 6.00 => techno not valid.

Byzantium TGB800 (1922) & TGB860 (1924) are SS with " Cruisers under 3000 tons may have composite hull strength > 0.75 "

I think that they must be 0.9 not 0.75 ... ?

[Jefgte]

TGB800 (12 ships)
Hull strength (Relative):
           - Cross-sectional: 0,65
           - Longitudinal: 2,46
      - Overall: 0,75

to TGB910 (10 ships)

Hull strength (Relative):
      - Cross-sectional: 0,78
      - Longitudinal: 3,22
       - Overall: 0,90

Identical armament, speed, range



TGB910, Byzantine Empire TGB910 laid down 1922

Displacement:
   910 t light; 954 t standard; 1 032 t normal; 1 095 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (261,81 ft / 261,81 ft) x 27,62 ft x (11,00 / 11,48 ft)
   (79,80 m / 79,80 m) x 8,42 m  x (3,35 / 3,50 m)

Armament:
      4 - 4,00" / 102 mm 45,0 cal guns - 32,28lbs / 14,64kg shells, 210 per gun
     Quick firing guns in deck mounts, 1922 Model
     2 x 2-gun mounts on centreline ends, evenly spread
      1 - 3,00" / 76,2 mm 45,0 cal gun - 12,50lbs / 5,67kg shells, 230 per gun
     Anti-air gun in deck mount, 1922 Model
     1 x Single mount on centreline, aft deck aft
      1 raised mount
      4 - 1,85" / 47,0 mm 45,0 cal guns - 3,00lbs / 1,36kg shells, 1 000 per gun
     Quick firing guns in deck mounts, 1922 Model
     4 x Single mounts on sides, forward evenly spread
      2 - 0,30" / 7,7 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 3 000 per gun
     Machine guns in deck mounts, 1922 Model
     2 x Single mounts on sides, forward deck forward
      2 raised mounts
      Weight of broadside 154 lbs / 70 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, 14 800 shp / 11 041 Kw = 27,02 kts
   Range 5 000nm at 10,00 kts
   Bunker at max displacement = 141 tons (25% coal)

Complement:
   90 - 118

Cost:
   £0,287 million / $1,147 million

Distribution of weights at normal displacement:
   Armament: 29 tons, 2,8 %
      - Guns: 29 tons, 2,8 %
   Armour: 5 tons, 0,4 %
      - Armament: 5 tons, 0,4 %
   Machinery: 468 tons, 45,3 %
   Hull, fittings & equipment: 353 tons, 34,2 %
   Fuel, ammunition & stores: 123 tons, 11,9 %
   Miscellaneous weights: 55 tons, 5,3 %
      - On freeboard deck: 27 tons
      - Above deck: 28 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     495 lbs / 225 Kg = 15,5 x 4,0 " / 102 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,08
   Metacentric height 0,8 ft / 0,3 m
   Roll period: 12,6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,31
   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): 0,454 / 0,462
   Length to Beam Ratio: 9,48 : 1
   'Natural speed' for length: 16,18 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 66
   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 %,  16,73 ft / 5,10 m,  13,78 ft / 4,20 m
      - Forward deck:   33,00 %,  13,78 ft / 4,20 m,  10,83 ft / 3,30 m
      - Aft deck:   33,00 %,  10,83 ft / 3,30 m,  10,83 ft / 3,30 m
      - Quarter deck:   16,00 %,  10,83 ft / 3,30 m,  11,15 ft / 3,40 m
      - Average freeboard:      12,08 ft / 3,68 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 155,3 %
      - Above water (accommodation/working, high = better): 113,3 %
   Waterplane Area: 4 629 Square feet or 430 Square metres
   Displacement factor (Displacement / loading): 89 %
   Structure weight / hull surface area: 40 lbs/sq ft or 193 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,78
      - Longitudinal: 3,22
      - Overall: 0,90
   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-1918
25t fot LR Marconi
12t for 3TTx21"
5t for Hydrophone
4t for 40x90kg DC
6t reserved for new armament, materials, troops, minen...

Trial speed: 28kts
Bonus: 0.98

[The Rock Doctor]

Yeah, always awkward when tech advancement isn't quite where you think it is when you start a ship.