Byzantine Empire 1933-34

Jefgte · May 01, 2024, 10:52:04 AM

Byzantium builds a new DD class, TB & TGB every 2 years.
In 1932, 1933, D8 class (12DD) will be rebuilt from 1000t to 1100t with 120 guns.
The 1900t D15 class (8DD) will also be built.
In 1934, an evolution of D15 class (1900t) will be started.
A class of colonial TB or DD (900t-1200t) will also be started.

Escort Destroyer, Byzantine Empire T900 laid down 1934

Displacement:
900 t light; 962 t standard; 1 080 t normal; 1 175 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(292,69 ft / 288,71 ft) x 29,63 ft x (10,94 / 11,57 ft)
(89,21 m / 88,00 m) x 9,03 m x (3,33 / 3,53 m)

Armament:
4 - 4,00" / 102 mm 45,0 cal guns - 32,28lbs / 14,64kg shells, 320 per gun
Dual purpose guns in deck mounts, 1934 Model
2 x 2-gun mounts on centreline ends, evenly spread
4 - 1,57" / 40,0 mm 39,0 cal guns - 1,85lbs / 0,84kg shells, 2 000 per gun
Anti-air guns in deck mounts, 1934 Model
2 x 2-gun mounts on centreline ends, evenly spread
2 raised mounts
4 - 1,57" / 40,0 mm 39,0 cal guns - 1,85lbs / 0,84kg shells, 2 000 per gun
Anti-air guns in deck mounts, 1934 Model
2 x 2-gun mounts on sides, forward deck aft
4 - 0,50" / 12,7 mm 62,0 cal guns - 0,07lbs / 0,03kg shells, 4 000 per gun
Machine guns in deck mounts, 1934 Model
2 x Single mounts on sides, forward deck forward
2 raised mounts
Weight of broadside 144 lbs / 65 kg

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

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 24 850 shp / 18 538 Kw = 30,97 kts
Range 6 000nm at 12,00 kts
Bunker at max displacement = 213 tons

Complement:
93 - 122

Cost:
£0,561 million / $2,242 million

Distribution of weights at normal displacement:
Armament: 28 tons, 2,6 %
- Guns: 28 tons, 2,6 %
Armour: 4 tons, 0,3 %
- Armament: 4 tons, 0,3 %
Machinery: 539 tons, 50,0 %
Hull, fittings & equipment: 284 tons, 26,3 %
Fuel, ammunition & stores: 180 tons, 16,7 %
Miscellaneous weights: 45 tons, 4,2 %
- On freeboard deck: 42 tons
- Above deck: 3 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
323 lbs / 147 Kg = 10,1 x 4,0 " / 102 mm shells or 0,3 torpedoes
Stability (Unstable if below 1.00): 1,21
Metacentric height 1,2 ft / 0,4 m
Roll period: 11,6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,21
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): 0,404 / 0,416
Length to Beam Ratio: 9,75 : 1
'Natural speed' for length: 16,99 kts
Power going to wave formation at top speed: 68 %
Trim (Max stability = 0, Max steadiness = 100): 69
Bow angle (Positive = bow angles forward): 12,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 17,50 %, 18,70 ft / 5,70 m, 15,42 ft / 4,70 m
- Forward deck: 33,50 %, 15,42 ft / 4,70 m, 11,98 ft / 3,65 m
- Aft deck: 33,50 %, 11,98 ft / 3,65 m, 10,83 ft / 3,30 m
- Quarter deck: 15,50 %, 10,83 ft / 3,30 m, 11,15 ft / 3,40 m
- Average freeboard: 13,04 ft / 3,97 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 170,9 %
- Above water (accommodation/working, high = better): 135,6 %
Waterplane Area: 5 277 Square feet or 490 Square metres
Displacement factor (Displacement / loading): 70 %
Structure weight / hull surface area: 28 lbs/sq ft or 138 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,50
- Longitudinal: 2,27
- Overall: 0,58
Cramped machinery, storage, compartmentation space
Excellent accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform

AD
3t for top fire control
Short Marconi
OD
16t for 1x4TTx533 HW
15t for enhanced hydrophone
5t for DC
6t reserved
AW
Climatisation

600nm@30kts
1800nm@20kts
3090nm@16kts

Trial speed: 32kts
Bonus: 1.05

----------------------
Similar with 2M2x114

Escort Destroyer, Byzantine Empire D1020 laid down 1934

Displacement:
1 020 t light; 1 103 t standard; 1 231 t normal; 1 334 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(309,23 ft / 305,12 ft) x 30,51 ft x (11,46 / 12,08 ft)
(94,25 m / 93,00 m) x 9,30 m x (3,49 / 3,68 m)

Armament:
4 - 4,49" / 114 mm 45,0 cal guns - 58,00lbs / 26,31kg shells, 320 per gun
Dual purpose guns in deck mounts, 1934 Model
2 x 2-gun mounts on centreline ends, evenly spread
4 - 1,57" / 40,0 mm 39,0 cal guns - 1,85lbs / 0,84kg shells, 2 000 per gun
Anti-air guns in deck mounts, 1934 Model
2 x 2-gun mounts on centreline ends, evenly spread
2 raised mounts
4 - 1,57" / 40,0 mm 39,0 cal guns - 1,85lbs / 0,84kg shells, 2 000 per gun
Anti-air guns in deck mounts, 1934 Model
2 x 2-gun mounts on sides, forward deck aft
4 - 0,50" / 12,7 mm 62,0 cal guns - 0,07lbs / 0,03kg shells, 4 000 per gun
Machine guns in deck mounts, 1934 Model
2 x Single mounts on sides, forward deck forward
2 raised mounts
Weight of broadside 247 lbs / 112 kg

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

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 27 810 shp / 20 746 Kw = 31,45 kts
Range 6 000nm at 12,00 kts
Bunker at max displacement = 231 tons

Complement:
103 - 135

Cost:
£0,646 million / $2,582 million

Distribution of weights at normal displacement:
Armament: 38 tons, 3,1 %
- Guns: 38 tons, 3,1 %
Armour: 4 tons, 0,3 %
- Armament: 4 tons, 0,3 %
Machinery: 615 tons, 50,0 %
Hull, fittings & equipment: 314 tons, 25,5 %
Fuel, ammunition & stores: 211 tons, 17,2 %
Miscellaneous weights: 48 tons, 3,9 %
- On freeboard deck: 44 tons
- Above deck: 4 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
347 lbs / 158 Kg = 7,7 x 4,5 " / 114 mm shells or 0,3 torpedoes
Stability (Unstable if below 1.00): 1,22
Metacentric height 1,2 ft / 0,4 m
Roll period: 11,6 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,31
Seaboat quality (Average = 1.00): 1,01

Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0,404 / 0,415
Length to Beam Ratio: 10,00 : 1
'Natural speed' for length: 17,47 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 69
Bow angle (Positive = bow angles forward): 12,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 17,50 %, 19,36 ft / 5,90 m, 15,58 ft / 4,75 m
- Forward deck: 33,50 %, 15,58 ft / 4,75 m, 11,98 ft / 3,65 m
- Aft deck: 33,50 %, 11,98 ft / 3,65 m, 10,83 ft / 3,30 m
- Quarter deck: 15,50 %, 10,83 ft / 3,30 m, 11,15 ft / 3,40 m
- Average freeboard: 13,13 ft / 4,00 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 173,0 %
- Above water (accommodation/working, high = better): 133,7 %
Waterplane Area: 5 744 Square feet or 534 Square metres
Displacement factor (Displacement / loading): 71 %
Structure weight / hull surface area: 30 lbs/sq ft or 145 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,50
- Longitudinal: 2,04
- Overall: 0,57
Cramped machinery, storage, compartmentation space
Excellent accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform

AD
4t for top fire control
Short Marconi
OD
16t for 1x4TTx533 HW
15t for enhanced hydrophone
5t for DC
8t reserved
AW
Climatisation

600nm@30kts
1800nm@20kts
3090nm@16kts

Trial speed: 32kts
Bonus: 1.05

Kaiser Kirk · May 01, 2024, 11:08:34 AM

for 120 tons, 13% more, you get a much better gun. The 58lb round fires a little further, but has 79% more impact.

Jefgte · May 01, 2024, 11:17:28 AM

Update from 1020t to 1100t
=> More reserve weight

Escort Destroyer, Byzantine Empire D1100 laid down 1934

Displacement:
   1 100 t light; 1 186 t standard; 1 320 t normal; 1 427 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (325,74 ft / 321,52 ft) x 32,15 ft x (11,06 / 11,65 ft)
   (99,29 m / 98,00 m) x 9,80 m x (3,37 / 3,55 m)

Armament:
4 - 4,49" / 114 mm 45,0 cal guns - 58,00lbs / 26,31kg shells, 320 per gun
     Dual purpose guns in deck mounts, 1934 Model
     2 x 2-gun mounts on centreline ends, evenly spread
4 - 1,57" / 40,0 mm 39,0 cal guns - 2,01lbs / 0,91kg shells, 2 000 per gun
     Anti-air guns in deck mounts, 1934 Model
     2 x 2-gun mounts on centreline ends, evenly spread
      2 raised mounts
4 - 1,57" / 40,0 mm 39,0 cal guns - 2,01lbs / 0,91kg shells, 2 000 per gun
     Anti-air guns in deck mounts, 1934 Model
     2 x 2-gun mounts on sides, forward deck aft
4 - 0,50" / 12,7 mm 62,0 cal guns - 0,07lbs / 0,03kg shells, 4 000 per gun
     Machine guns in deck mounts, 1934 Model
     2 x Single mounts on sides, forward deck forward
      2 raised mounts
Weight of broadside 248 lbs / 113 kg

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

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 29 282 shp / 21 845 Kw = 31,73 kts
   Range 6 000nm at 12,00 kts
   Bunker at max displacement = 241 tons

Complement:
   109 - 142

Cost:
   £0,690 million / $2,761 million

Distribution of weights at normal displacement:
   Armament: 38 tons, 2,9 %
     - Guns: 38 tons, 2,9 %
   Armour: 4 tons, 0,3 %
     - Armament: 4 tons, 0,3 %
   Machinery: 660 tons, 50,0 %
   Hull, fittings & equipment: 341 tons, 25,8 %
   Fuel, ammunition & stores: 220 tons, 16,7 %
   Miscellaneous weights: 57 tons, 4,3 %
     - On freeboard deck: 53 tons
     - Above deck: 4 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     385 lbs / 175 Kg = 8,5 x 4,5 " / 114 mm shells or 0,3 torpedoes
   Stability (Unstable if below 1.00): 1,24
   Metacentric height 1,3 ft / 0,4 m
   Roll period: 11,6 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,26
   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): 0,404 / 0,415
   Length to Beam Ratio: 10,00 : 1
   'Natural speed' for length: 17,93 kts
   Power going to wave formation at top speed: 66 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   Bow angle (Positive = bow angles forward): 12,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   17,50 %, 19,85 ft / 6,05 m, 15,91 ft / 4,85 m
     - Forward deck:   33,50 %, 15,91 ft / 4,85 m, 12,30 ft / 3,75 m
     - Aft deck:   33,50 %, 12,30 ft / 3,75 m, 10,83 ft / 3,30 m
     - Quarter deck:   15,50 %, 10,83 ft / 3,30 m, 11,15 ft / 3,40 m
     - Average freeboard:      13,36 ft / 4,07 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 172,5 %
      - Above water (accommodation/working, high = better): 143,1 %
   Waterplane Area: 6 378 Square feet or 593 Square metres
   Displacement factor (Displacement / loading): 72 %
   Structure weight / hull surface area: 30 lbs/sq ft or 147 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 1,76
      - Overall: 0,56
   Cramped machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

AD
4t for top fire control
Short Marconi
OD
16t for 1x4TTx533 HW
15t for enhanced hydrophone
6t for DC
16t reserved
AW
Climatisation

Trial speed: 32,5kts
Bonus: 0.77

Kaiser Kirk · May 05, 2024, 07:59:43 PM

It's a pretty good 1100 tonner.

Difficult size range to manage.

I just can not fit all the things I want to on a 1000 ton hull,
or the 1100 ton- that was the starting point for the Gurg/Vakharz classes.
The replacement Saihgus is 11% larger than those but 15% larger than this.

Jefgte · May 17, 2024, 02:22:45 AM

For patrols, colonies & escorts works

TGB570, Byzantine Empire Torpedo Gun Boat laid down 1933

Displacement:
570 t light; 627 t standard; 678 t normal; 718 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(245,80 ft / 242,78 ft) x 26,25 ft x (8,99 / 9,35 ft)
(74,92 m / 74,00 m) x 8,00 m x (2,74 / 2,85 m)

Armament:
4 - 4,72" / 120 mm 45,0 cal guns - 50,00lbs / 22,68kg shells, 225 per gun
Quick firing guns in deck mounts, 1927 Model
2 x 2-gun mounts on centreline ends, evenly spread
8 - 1,57" / 40,0 mm 39,0 cal guns - 2,01lbs / 0,91kg shells, 2 000 per gun
Quick firing guns in deck mounts, 1933 Model
4 x 2-gun mounts on side ends, evenly spread
4 raised mounts
4 - 0,50" / 12,7 mm 62,0 cal guns - 0,07lbs / 0,03kg shells, 4 000 per gun
Machine guns in deck mounts, 1933 Model
2 x 2-gun mounts on sides, forward deck aft
2 raised mounts
Weight of broadside 216 lbs / 98 kg

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

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 8 600 shp / 6 415 Kw = 25,20 kts
Range 5 000nm at 10,00 kts
Bunker at max displacement = 91 tons

Complement:
66 - 86

Cost:
£0,312 million / $1,250 million

Distribution of weights at normal displacement:
Armament: 41 tons, 6,0 %
- Guns: 41 tons, 6,0 %
Armour: 5 tons, 0,8 %
- Armament: 5 tons, 0,8 %
Machinery: 251 tons, 37,0 %
Hull, fittings & equipment: 215 tons, 31,8 %
Fuel, ammunition & stores: 108 tons, 15,9 %
Miscellaneous weights: 58 tons, 8,6 %
- Hull above water: 2 tons
- On freeboard deck: 52 tons
- Above deck: 4 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
372 lbs / 169 Kg = 7,1 x 4,7 " / 120 mm shells or 0,3 torpedoes
Stability (Unstable if below 1.00): 1,11
Metacentric height 0,8 ft / 0,2 m
Roll period: 12,2 seconds
Steadiness - As gun platform (Average = 50 %): 73 %
- Recoil effect (Restricted arc if above 1.00): 0,53
Seaboat quality (Average = 1.00): 1,22

Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0,414 / 0,422
Length to Beam Ratio: 9,25 : 1
'Natural speed' for length: 15,58 kts
Power going to wave formation at top speed: 63 %
Trim (Max stability = 0, Max steadiness = 100): 60
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: 18,00 %, 17,14 ft / 5,23 m, 13,21 ft / 4,03 m
- Forward deck: 33,00 %, 13,21 ft / 4,03 m, 9,92 ft / 3,03 m
- Aft deck: 33,00 %, 9,92 ft / 3,03 m, 8,94 ft / 2,73 m
- Quarter deck: 16,00 %, 8,94 ft / 2,73 m, 9,92 ft / 3,03 m
- Average freeboard: 11,10 ft / 3,38 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 140,5 %
- Above water (accommodation/working, high = better): 119,9 %
Waterplane Area: 3 957 Square feet or 368 Square metres
Displacement factor (Displacement / loading): 101 %
Structure weight / hull surface area: 32 lbs/sq ft or 155 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,65
- Longitudinal: 2,73
- Overall: 0,75
Cramped machinery, storage, compartmentation space
Adequate accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

AD
Short Marconi
4t for top fire control - 1924
OD
9t for 1x3TTx533
15t for enhanced hydrophone
6t for 30x195kg DC
2t for paravanes
20t reserve for new materials, armaments or 20 minen
AW
Climatisation

Jefgte · May 21, 2024, 06:32:13 AM

For 8000t cruisers - 1933, Byzantium test several projects,
mostly:
4T2x191 - 31kts - 13000nm - B100
6T2x191 - 30kts - 12500nm - B100
The project with 6T2x191 is selected because its 50% greater firepower is preferable to 1 additional knot.

Patuh - Prukho, Byzantine Empire C13 laid down 1933

Displacement:
8 000 t light; 8 600 t standard; 9 528 t normal; 10 270 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(563,29 ft / 557,74 ft) x 62,01 ft x (19,76 / 20,90 ft)
(171,69 m / 170,00 m) x 18,90 m x (6,02 / 6,37 m)

Armament:
12 - 7,52" / 191 mm 45,0 cal guns - 200,00lbs / 90,72kg shells, 180 per gun
Breech loading guns in deck and hoist mounts, 1933 Model
6 x 2-gun mounts on centreline ends, evenly spread
2 raised mounts - superfiring
12 - 4,49" / 114 mm 45,0 cal guns - 58,00lbs / 26,31kg shells, 340 per gun
Dual purpose guns in deck and hoist mounts, 1933 Model
6 x 2-gun mounts on sides, evenly spread
16 - 1,57" / 40,0 mm 39,0 cal guns - 2,01lbs / 0,91kg shells, 2 000 per gun
Quick firing guns in deck mounts, 1933 Model
8 x 2-gun mounts on sides, evenly spread
8 raised mounts
16 - 0,50" / 12,7 mm 62,0 cal guns - 0,07lbs / 0,03kg shells, 4 000 per gun
Machine guns in deck mounts, 1933 Model
8 x 2-gun mounts on side ends, evenly spread
8 raised mounts
Weight of broadside 3 129 lbs / 1 419 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3,94" / 100 mm 368,11 ft / 112,20 m 9,45 ft / 2,88 m
Ends: 1,38" / 35 mm 189,60 ft / 57,79 m 9,45 ft / 2,88 m
Main Belt covers 102 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4,72" / 120 mm 0,98" / 25 mm 1,97" / 50 mm
2nd: 0,39" / 10 mm - -
4th: 0,24" / 6 mm - -
5th: 0,24" / 6 mm - -

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

- Conning towers: Forward 3,94" / 100 mm, Aft 2,76" / 70 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 65 240 shp / 48 669 Kw = 30,00 kts
Range 12 500nm at 12,00 kts
Bunker at max displacement = 1 670 tons

Complement:
481 - 626

Cost:
£3,981 million / $15,926 million

Distribution of weights at normal displacement:
Armament: 840 tons, 8,8 %
- Guns: 840 tons, 8,8 %
Armour: 1 542 tons, 16,2 %
- Belts: 655 tons, 6,9 %
- Armament: 114 tons, 1,2 %
- Armour Deck: 707 tons, 7,4 %
- Conning Towers: 65 tons, 0,7 %
Machinery: 1 901 tons, 20,0 %
Hull, fittings & equipment: 3 453 tons, 36,2 %
Fuel, ammunition & stores: 1 528 tons, 16,0 %
Miscellaneous weights: 265 tons, 2,8 %
- Hull below water: 40 tons
- On freeboard deck: 116 tons
- Above deck: 109 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
11 255 lbs / 5 105 Kg = 52,9 x 7,5 " / 191 mm shells or 1,6 torpedoes
Stability (Unstable if below 1.00): 1,05
Metacentric height 2,7 ft / 0,8 m
Roll period: 15,9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,84
Seaboat quality (Average = 1.00): 1,09

Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0,488 / 0,497
Length to Beam Ratio: 8,99 : 1
'Natural speed' for length: 23,62 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 64
Bow angle (Positive = bow angles forward): 12,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 17,50 %, 26,08 ft / 7,95 m, 20,83 ft / 6,35 m
- Forward deck: 33,50 %, 20,83 ft / 6,35 m, 17,06 ft / 5,20 m
- Aft deck: 32,50 %, 17,06 ft / 5,20 m, 16,40 ft / 5,00 m
- Quarter deck: 16,50 %, 16,40 ft / 5,00 m, 16,40 ft / 5,00 m
- Average freeboard: 18,51 ft / 5,64 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 96,0 %
- Above water (accommodation/working, high = better): 161,2 %
Waterplane Area: 22 794 Square feet or 2 118 Square metres
Displacement factor (Displacement / loading): 113 %
Structure weight / hull surface area: 112 lbs/sq ft or 545 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,96
- Longitudinal: 1,45
- Overall: 1,00
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform

AD
25t for Long Range Marconi
84t for top mast rangefinder - FC1924
OD
32t for 2x4TTx21" HW
45t for 2 seaplanes + cata
39t reserved for new armament, materials, minen...
AW
Climatisatisation
BW
40t for additionnal pumps

Jefgte · May 25, 2024, 11:19:33 AM

Testing a 8000t HMS Sheffield

4T3x152/50, Byzantine Empire 8000t-32kts laid down 1933

Displacement:
   8 000 t light; 8 425 t standard; 9 384 t normal; 10 152 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (574,11 ft / 570,87 ft) x 62,01 ft x (19,33 / 20,49 ft)
   (174,99 m / 174,00 m) x 18,90 m x (5,89 / 6,25 m)

Armament:
12 - 5,98" / 152 mm 50,0 cal guns - 111,99lbs / 50,80kg shells, 200 per gun
     Breech loading guns in deck and hoist mounts, 1933 Model
     4 x 3-gun mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
8 - 4,02" / 102 mm 45,0 cal guns - 33,00lbs / 14,97kg shells, 340 per gun
     Dual purpose guns in deck and hoist mounts, 1933 Model
     4 x 2-gun mounts on sides, evenly spread
16 - 1,57" / 40,0 mm 39,0 cal guns - 2,01lbs / 0,91kg shells, 2 000 per gun
     Anti-air guns in deck mounts, 1933 Model
     8 x 2-gun mounts on sides, evenly spread
      8 raised mounts
16 - 0,50" / 12,7 mm 62,0 cal guns - 0,07lbs / 0,03kg shells, 4 000 per gun
     Machine guns in deck mounts, 1933 Model
     8 x 2-gun mounts on side ends, evenly spread
      8 raised mounts
Weight of broadside 1 641 lbs / 744 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3,94" / 100 mm   379,63 ft / 115,71 m   9,45 ft / 2,88 m
   Ends:   1,18" / 30 mm   191,21 ft / 58,28 m   9,45 ft / 2,88 m
     Main Belt covers 102 % of normal length

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   3,94" / 100 mm   0,98" / 25 mm      1,97" / 50 mm
   2nd:   0,39" / 10 mm     -           -
   4th:   0,24" / 6 mm     -           -
   5th:   0,24" / 6 mm     -           -

- Protected deck - single deck:
   For and Aft decks: 1,57" / 40 mm
   Forecastle: 0,98" / 25 mm Quarter deck: 1,18" / 30 mm

- Conning towers: Forward 3,94" / 100 mm, Aft 2,76" / 70 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 82 550 shp / 61 582 Kw = 32,00 kts
   Range 13 000nm at 12,00 kts
   Bunker at max displacement = 1 726 tons

Complement:
   476 - 619

Cost:
   £3,720 million / $14,881 million

Distribution of weights at normal displacement:
   Armament: 486 tons, 5,2 %
     - Guns: 486 tons, 5,2 %
   Armour: 1 439 tons, 15,3 %
     - Belts: 660 tons, 7,0 %
     - Armament: 71 tons, 0,8 %
     - Armour Deck: 644 tons, 6,9 %
     - Conning Towers: 64 tons, 0,7 %
   Machinery: 2 405 tons, 25,6 %
   Hull, fittings & equipment: 3 425 tons, 36,5 %
   Fuel, ammunition & stores: 1 384 tons, 14,7 %
   Miscellaneous weights: 245 tons, 2,6 %
     - Hull below water: 40 tons
     - On freeboard deck: 120 tons
     - Above deck: 85 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     10 745 lbs / 4 874 Kg = 100,3 x 6,0 " / 152 mm shells or 1,5 torpedoes
   Stability (Unstable if below 1.00): 1,08
   Metacentric height 2,8 ft / 0,9 m
   Roll period: 15,5 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,47
   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): 0,480 / 0,490
   Length to Beam Ratio: 9,21 : 1
   'Natural speed' for length: 23,89 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   Bow angle (Positive = bow angles forward): 7,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   17,25 %, 26,41 ft / 8,05 m, 21,33 ft / 6,50 m
     - Forward deck:   33,25 %, 21,33 ft / 6,50 m, 17,55 ft / 5,35 m
     - Aft deck:   33,25 %, 17,55 ft / 5,35 m, 16,73 ft / 5,10 m
     - Quarter deck:   16,25 %, 16,73 ft / 5,10 m, 16,40 ft / 5,00 m
     - Average freeboard:      18,89 ft / 5,76 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 101,8 %
      - Above water (accommodation/working, high = better): 169,6 %
   Waterplane Area: 23 165 Square feet or 2 152 Square metres
   Displacement factor (Displacement / loading): 116 %
   Structure weight / hull surface area: 103 lbs/sq ft or 504 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,96
      - Longitudinal: 1,36
      - Overall: 1,00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

AD
25t for Long Range Marconi
53t for top mast rangefinder - FC1924
OD
32t for 2x4TTx21" HW
45t for 2 seaplanes + cata
43t reserved for new armament, materials, minen...
AW
Climatisatisation
BW
40t for additionnal pumps

Jefgte · May 25, 2024, 04:58:22 PM

I could built 27kts TGB to work with 27kts colonial cruisers.

Prince class, Byzantine Empire TGB720 laid down 1932-33-34

Displacement:
720 t light; 776 t standard; 864 t normal; 935 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(259,03 ft / 255,91 ft) x 26,25 ft x (10,38 / 10,96 ft)
(78,95 m / 78,00 m) x 8,00 m x (3,16 / 3,34 m)

Armament:
4 - 4,72" / 120 mm 45,0 cal guns - 50,00lbs / 22,68kg shells, 220 per gun
Quick firing guns in deck mounts, 1927 Model
2 x 2-gun mounts on centreline ends, evenly spread
4 - 1,57" / 40,0 mm 39,0 cal guns - 2,01lbs / 0,91kg shells, 2 000 per gun
Anti-air guns in deck mounts, 1932 Model
2 x 2-gun mounts on centreline ends, evenly spread
2 raised mounts
2 - 1,57" / 40,0 mm 39,0 cal guns - 2,01lbs / 0,91kg shells, 2 000 per gun
Anti-air guns in deck mount, 1932 Model
1 x 2-gun mount on centreline, forward deck aft
4 - 0,50" / 12,7 mm 62,0 cal guns - 0,07lbs / 0,03kg shells, 4 000 per gun
Machine guns in deck mounts, 1932 Model
2 x 2-gun mounts on sides, forward deck forward
2 raised mounts
Weight of broadside 212 lbs / 96 kg

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

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 13 200 shp / 9 847 Kw = 27,04 kts
Range 5 000nm at 12,00 kts
Bunker at max displacement = 159 tons

Complement:
79 - 103

Cost:
£0,396 million / $1,585 million

Distribution of weights at normal displacement:
Armament: 40 tons, 4,6 %
- Guns: 40 tons, 4,6 %
Armour: 4 tons, 0,4 %
- Armament: 4 tons, 0,4 %
Machinery: 365 tons, 42,2 %
Hull, fittings & equipment: 263 tons, 30,4 %
Fuel, ammunition & stores: 144 tons, 16,7 %
Miscellaneous weights: 49 tons, 5,7 %
- On freeboard deck: 45 tons
- Above deck: 4 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
387 lbs / 175 Kg = 7,3 x 4,7 " / 120 mm shells or 0,3 torpedoes
Stability (Unstable if below 1.00): 1,14
Metacentric height 0,9 ft / 0,3 m
Roll period: 11,9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0,47
Seaboat quality (Average = 1.00): 1,16

Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0,434 / 0,444
Length to Beam Ratio: 9,75 : 1
'Natural speed' for length: 16,00 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 60
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: 18,00 %, 17,72 ft / 5,40 m, 14,44 ft / 4,40 m
- Forward deck: 33,00 %, 14,44 ft / 4,40 m, 10,83 ft / 3,30 m
- Aft deck: 33,00 %, 10,83 ft / 3,30 m, 9,51 ft / 2,90 m
- Quarter deck: 16,00 %, 9,51 ft / 2,90 m, 10,17 ft / 3,10 m
- Average freeboard: 11,93 ft / 3,64 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 151,8 %
- Above water (accommodation/working, high = better): 116,3 %
Waterplane Area: 4 230 Square feet or 393 Square metres
Displacement factor (Displacement / loading): 92 %
Structure weight / hull surface area: 32 lbs/sq ft or 158 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,64
- Longitudinal: 3,08
- Overall: 0,75
Cramped machinery, storage, compartmentation space
Adequate accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform

AD
Short Marconi
4t for top fire control
OD
12t for 1x4TTx533
15t for enhanced hydrophone
6t for 30x195kg DC
2t for paravanes
10t reserve for new armament, material, minen
AW
Climatisation