Byzantine Empire 1918-1922

Jefgte · January 09, 2022, 05:34:04 PM

Quote...and that I have 2.5x the fuel, so I can make long runs at top speed...

Better range - 3000nm => 3860nm (Oil bunker: 57t => 72t)
215nm@29kts
580nm@21kts
4810nm@9kts

Aqaba class, Byzantine Empire T500 laid down 1921

Displacement:
   500 t light; 525 t standard; 565 t normal; 597 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (244,05 ft / 242,78 ft) x 23,79 ft x (8,56 / 8,88 ft)
   (74,38 m / 74,00 m) x 7,25 m x (2,61 / 2,71 m)

Armament:
3 - 4,00" / 102 mm 45,0 cal guns - 32,28lbs / 14,64kg shells, 220 per gun
     Quick firing guns in deck mounts, 1921 Model
     3 x Single mounts on centreline ends, majority forward
      1 raised mount - superfiring
1 - 1,85" / 47,0 mm 45,0 cal gun - 3,20lbs / 1,45kg shells, 1 000 per gun
     Quick firing gun in deck mount, 1921 Model
     1 x Single mount on centreline, aft deck aft
      1 raised mount
4 - 0,30" / 7,7 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 4 000 per gun
     Machine guns in deck mounts, 1921 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
Weight of broadside 100 lbs / 45 kg

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

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 2 shafts, 13 970 shp / 10 421 Kw = 29,19 kts
   Range 3 860nm at 10,00 kts
   Bunker at max displacement = 72 tons

Complement:
   57 - 75

Cost:
   £0,158 million / $0,631 million

Distribution of weights at normal displacement:
   Armament: 18 tons, 3,2 %
     - Guns: 18 tons, 3,2 %
   Armour: 8 tons, 1,4 %
     - Armament: 8 tons, 1,4 %
   Machinery: 282 tons, 50,0 %
   Hull, fittings & equipment: 173 tons, 30,6 %
   Fuel, ammunition & stores: 65 tons, 11,6 %
   Miscellaneous weights: 18 tons, 3,2 %
     - On freeboard deck: 16 tons
     - Above deck: 2 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     174 lbs / 79 Kg = 5,4 x 4,0 " / 102 mm shells or 0,2 torpedoes
   Stability (Unstable if below 1.00): 1,09
   Metacentric height 0,7 ft / 0,2 m
   Roll period: 12,0 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,43
   Seaboat quality (Average = 1.00): 1,01

Hull form characteristics:
   Hull has raised quarterdeck ,
     a normal bow and a cruiser stern
   Block coefficient (normal/deep): 0,400 / 0,408
   Length to Beam Ratio: 10,21 : 1
   'Natural speed' for length: 15,58 kts
   Power going to wave formation at top speed: 68 %
   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 %, 14,44 ft / 4,40 m, 12,47 ft / 3,80 m
     - Forward deck:   33,00 %, 12,47 ft / 3,80 m, 10,33 ft / 3,15 m
     - Aft deck:   33,00 %, 10,33 ft / 3,15 m, 10,17 ft / 3,10 m
     - Quarter deck:   16,00 %, 10,33 ft / 3,15 m, 10,99 ft / 3,35 m
     - Average freeboard:      11,24 ft / 3,43 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 171,3 %
      - Above water (accommodation/working, high = better): 128,6 %
   Waterplane Area: 3 555 Square feet or 330 Square metres
   Displacement factor (Displacement / loading): 55 %
   Structure weight / hull surface area: 24 lbs/sq ft or 118 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 2,69
      - Overall: 0,59
   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
16t for 4TTx533 HW

215nm@29kts
580nm@21kts
4810nm@9kts
Trial speed: 31,5kts
Bonus: 2.25

Kaiser Kirk · January 09, 2022, 08:36:40 PM

Quote from: Jefgte on January 09, 2022, 04:37:42 PM
This Torpedo Boat class is intended for work in archipelagos, narrow seas and near harbors.
Egée Sea, Red Sea, around Madagascar, Timor Sea...
To maintain the tonnage at 500t and have a powerful surface armament, the ASW function has been sacrificed.
Submarines in 1920 did not represent a very serious threat.
ASW work is for biger TBs & DDs.

Pretty much what I was looking for in my Pesh-Kabr.
I wanted something that could be built in numbers for the 'green' waters,
but also a dedicated leader for MTBs on high speed runs.

I will have to find time to examine the reposted long range version,
figure out how to make my Pesh-Kabr better.

Jefgte · January 14, 2022, 05:30:04 PM

I studied (but not posted) in October 2021, the reconstruction of AC3 - 14860t - 25kts - Ceyhan & Canakkale from 25kts to 27kts.
I redid the SS & the cost:
$6.85 & 3.25BP.

This 27kts rebuild is now in the PLAN

			$ x 0,20	BP x 0,1
AC3	14860t		2,972	1,486
to	13000t		$	BP
	new guns	4 x 76,2 AA	0,002	0,001
	new mounts	0	0	0
	new armour	360t	0,36	0,36
	new engines	2114t	4,228	2,114
			7,562	3,961
	old guns	0
	old mounts	0
	old armour	0
15%	old engines	4752t	0,7128	0,7128
			0,7128	0,7128
Final cost	7,56 - 0,7128 =>		6,85$		6,85$
Final cost	3,96 - 0,7128 =>			3,25BP	3,25BP

AC3, Byzantine Empire AC3 laid down 1904 (Engine 1921)

Displacement:
   13 000 t light; 13 613 t standard; 14 442 t normal; 15 105 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (574,00 ft / 574,00 ft) x 76,00 ft x (19,12 / 19,84 ft)
   (174,96 m / 174,96 m) x 23,16 m x (5,83 / 6,05 m)

Armament:
4 - 10,00" / 254 mm 45,0 cal guns - 504,26lbs / 228,73kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1904 Model
     2 x Twin mounts on centreline ends, evenly spread
4 - 10,00" / 254 mm 45,0 cal guns - 504,26lbs / 228,73kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1904 Model
     2 x Twin mounts on sides amidships
8 - 6,00" / 152 mm 45,0 cal guns - 108,93lbs / 49,41kg shells, 140 per gun
     Quick firing guns in casemate mounts, 1904 Model
     8 x Single mounts on sides, evenly spread
8 - 4,00" / 102 mm 45,0 cal guns - 32,28lbs / 14,64kg shells, 180 per gun
     Quick firing guns in deck mounts, 1904 Model
     8 x Single mounts on side ends, evenly spread
4 - 3,00" / 76,2 mm 45,0 cal guns - 13,62lbs / 6,18kg shells, 220 per gun
     Anti-air guns in deck mounts, 1920 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
Weight of broadside 5 218 lbs / 2 367 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   7,88" / 200 mm   436,00 ft / 132,89 m   10,50 ft / 3,20 m
   Ends:   1,97" / 50 mm   138,00 ft / 42,06 m   5,00 ft / 1,52 m
   Upper:   3,55" / 90 mm   436,00 ft / 132,89 m   10,00 ft / 3,05 m
     Main Belt covers 117 % of normal length

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   9,45" / 240 mm   2,95" / 75 mm      7,87" / 200 mm
   2nd:   9,45" / 240 mm   2,95" / 75 mm      7,87" / 200 mm
   3rd:   1,97" / 50 mm   1,97" / 50 mm      1,97" / 50 mm
   4th:   0,79" / 20 mm     -           -
   5th:   0,50" / 13 mm     -           -

- Armoured deck - single deck:
   For and Aft decks: 1,77" / 45 mm
   Forecastle: 1,20" / 30 mm Quarter deck: 1,20" / 30 mm

- Conning towers: Forward 9,45" / 240 mm, Aft 7,88" / 200 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 60 000 shp / 44 760 Kw = 27,03 kts
   Range 10 000nm at 10,00 kts
   Bunker at max displacement = 1 492 tons (25% coal)

Complement:
   658 - 856

Cost:
   £1,185 million / $4,738 million

Distribution of weights at normal displacement:
   Armament: 1 101 tons, 7,6 %
     - Guns: 1 101 tons, 7,6 %
   Armour: 4 238 tons, 29,3 %
     - Belts: 2 186 tons, 15,1 %
     - Armament: 838 tons, 5,8 %
     - Armour Deck: 993 tons, 6,9 %
     - Conning Towers: 221 tons, 1,5 %
   Machinery: 2 114 tons, 14,6 %
   Hull, fittings & equipment: 5 221 tons, 36,1 %
   Fuel, ammunition & stores: 1 442 tons, 10,0 %
   Miscellaneous weights: 327 tons, 2,3 %
     - Hull below water: 12 tons
     - Hull above water: 80 tons
     - On freeboard deck: 100 tons
     - Above deck: 135 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     21 569 lbs / 9 783 Kg = 43,1 x 10,0 " / 254 mm shells or 2,7 torpedoes
   Stability (Unstable if below 1.00): 1,12
   Metacentric height 4,1 ft / 1,2 m
   Roll period: 15,8 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,54
   Seaboat quality (Average = 1.00): 1,06

Hull form characteristics:
   Hull has a flush deck,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,606 / 0,611
   Length to Beam Ratio: 7,55 : 1
   'Natural speed' for length: 23,96 kts
   Power going to wave formation at top speed: 54 %
   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:   20,00 %, 20,95 ft / 6,39 m, 18,95 ft / 5,78 m
     - Forward deck:   33,00 %, 18,95 ft / 5,78 m, 17,95 ft / 5,47 m
     - Aft deck:   31,00 %, 17,95 ft / 5,47 m, 17,95 ft / 5,47 m
     - Quarter deck:   16,00 %, 17,95 ft / 5,47 m, 17,95 ft / 5,47 m
     - Average freeboard:      18,48 ft / 5,63 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 76,2 %
      - Above water (accommodation/working, high = better): 169,1 %
   Waterplane Area: 32 085 Square feet or 2 981 Square metres
   Displacement factor (Displacement / loading): 112 %
   Structure weight / hull surface area: 132 lbs/sq ft or 645 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,97
      - Longitudinal: 1,29
      - Overall: 1,00
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

Misc weight:
12t => 3 TT x 450 with 3 reloads
80t => 40t for extra pump installation & 40t for extra air ventilation
135t => 125t for fire control & 10t for short Marconi
100t reserve

Jefgte · January 15, 2022, 11:40:26 AM

Testing AC3 to colonial BB
Add 1410t of armor.
Speed decrease from 25 to 24.5kts.

AC3, Byzantine Empire AC3 to colonial BB laid down 1904

Displacement:
   16 670 t light; 17 360 t standard; 18 625 t normal; 19 637 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (574,00 ft / 574,00 ft) x 75,98 ft (Bulges 84,74 ft) x (22,11 / 23,22 ft)
   (174,96 m / 174,96 m) x 23,16 m (Bulges 25,83 m) x (6,74 / 7,08 m)

Armament:
4 - 10,00" / 254 mm 45,0 cal guns - 504,26lbs / 228,73kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1904 Model
     2 x Twin mounts on centreline ends, evenly spread
4 - 10,00" / 254 mm 45,0 cal guns - 504,26lbs / 228,73kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1904 Model
     2 x Twin mounts on sides amidships
8 - 6,00" / 152 mm 45,0 cal guns - 108,93lbs / 49,41kg shells, 140 per gun
     Quick firing guns in casemate mounts, 1904 Model
     8 x Single mounts on sides, evenly spread
8 - 4,00" / 102 mm 45,0 cal guns - 32,28lbs / 14,64kg shells, 180 per gun
     Quick firing guns in deck mounts, 1904 Model
     8 x Single mounts on side ends, evenly spread
4 - 0,30" / 7,7 mm 70,0 cal guns - 0,02lbs / 0,01kg shells, 2 000 per gun
     Machine guns in deck mounts, 1904 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
Weight of broadside 5 164 lbs / 2 342 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   11,8" / 300 mm   436,02 ft / 132,90 m   8,01 ft / 2,44 m
   Ends:   1,97" / 50 mm   137,80 ft / 42,00 m   4,99 ft / 1,52 m
   Upper:   3,54" / 90 mm   436,02 ft / 132,90 m   10,01 ft / 3,05 m
     Main Belt covers 117 % of normal length

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11,8" / 300 mm   2,95" / 75 mm      11,8" / 300 mm
   2nd:   11,8" / 300 mm   2,95" / 75 mm      11,8" / 300 mm
   3rd:   1,97" / 50 mm   1,97" / 50 mm      1,97" / 50 mm
   4th:   0,80" / 20 mm     -           -
   5th:   0,50" / 13 mm     -           -

- Armoured deck - multiple deck:
   For and Aft decks: 2,95" / 75 mm
   Forecastle: 1,18" / 30 mm Quarter deck: 1,18" / 30 mm

- Conning towers: Forward 9,45" / 240 mm, Aft 7,87" / 200 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 48 000 shp / 35 808 Kw = 24,50 kts
   Range 5 000nm at 10,00 kts
   Bunker at max displacement = 2 277 tons (90% coal)

Complement:
   796 - 1 036

Cost:
   £1,680 million / $6,719 million

Distribution of weights at normal displacement:
   Armament: 1 091 tons, 5,9 %
     - Guns: 1 091 tons, 5,9 %
   Armour: 5 223 tons, 28,0 %
     - Belts: 2 398 tons, 12,9 %
     - Armament: 1 003 tons, 5,4 %
     - Armour Deck: 1 560 tons, 8,4 %
     - Conning Towers: 262 tons, 1,4 %
   Machinery: 4 752 tons, 25,5 %
   Hull, fittings & equipment: 5 377 tons, 28,9 %
   Fuel, ammunition & stores: 1 955 tons, 10,5 %
   Miscellaneous weights: 227 tons, 1,2 %
     - Hull below water: 12 tons
     - Hull above water: 80 tons
     - Above deck: 135 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     16 988 lbs / 7 706 Kg = 34,0 x 10,0 " / 254 mm shells or 2,1 torpedoes
   Stability (Unstable if below 1.00): 1,31
   Metacentric height 5,4 ft / 1,6 m
   Roll period: 15,3 seconds
   Steadiness   - As gun platform (Average = 50 %): 72 %
         - Recoil effect (Restricted arc if above 1.00): 0,26
   Seaboat quality (Average = 1.00): 1,09

Hull form characteristics:
   Hull has a flush deck,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,606 / 0,609
   Length to Beam Ratio: 6,77 : 1
   'Natural speed' for length: 23,96 kts
   Power going to wave formation at top speed: 51 %
   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:   20,00 %, 18,00 ft / 5,49 m, 16,00 ft / 4,88 m
     - Forward deck:   33,00 %, 16,00 ft / 4,88 m, 15,00 ft / 4,57 m
     - Aft deck:   31,00 %, 15,00 ft / 4,57 m, 15,00 ft / 4,57 m
     - Quarter deck:   16,00 %, 15,00 ft / 4,57 m, 15,00 ft / 4,57 m
     - Average freeboard:      15,53 ft / 4,73 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 104,7 %
      - Above water (accommodation/working, high = better): 117,1 %
   Waterplane Area: 32 078 Square feet or 2 980 Square metres
   Displacement factor (Displacement / loading): 98 %
   Structure weight / hull surface area: 132 lbs/sq ft or 645 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,99
      - Longitudinal: 1,01
      - Overall: 1,00
   Adequate machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

Misc weight:
80t => 40t for extra pump installation & 40t for extra air ventilation
135t => 109t for Top Fire Control - 1912 - 14km
38t => reserved

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

Original built

AC3, Byzantine Empire AC3 laid down 1904

Ceyhan - Canakkale

Displacement:
14 860 t light; 15 512 t standard; 16 690 t normal; 17 633 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(574,00 ft / 574,00 ft) x 76,00 ft x (22,10 / 23,13 ft)
(174,96 m / 174,96 m) x 23,16 m x (6,74 / 7,05 m)

Armament:
4 - 10,00" / 254 mm 45,0 cal guns - 504,26lbs / 228,73kg shells, 100 per gun
Breech loading guns in turret on barbette mounts, 1904 Model
2 x Twin mounts on centreline ends, evenly spread
4 - 10,00" / 254 mm 45,0 cal guns - 504,26lbs / 228,73kg shells, 100 per gun
Breech loading guns in turret on barbette mounts, 1904 Model
2 x Twin mounts on sides alterned
8 - 6,00" / 152 mm 45,0 cal guns - 108,93lbs / 49,41kg shells, 140 per gun
Quick firing guns in casemate mounts, 1904 Model
8 x Single mounts on sides, evenly spread
8 - 4,00" / 102 mm 45,0 cal guns - 32,28lbs / 14,64kg shells, 180 per gun
Quick firing guns in deck mounts, 1904 Model
8 x Single mounts on side ends, evenly spread
4 - 0,30" / 7,7 mm 70,0 cal guns - 0,02lbs / 0,01kg shells, 2 000 per gun
Machine guns in deck mounts, 1904 Model
4 x Single mounts on side ends, evenly spread
4 raised mounts
Weight of broadside 5 164 lbs / 2 342 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 7,88" / 200 mm 436,00 ft / 132,89 m 8,00 ft / 2,44 m
Ends: 1,97" / 50 mm 138,00 ft / 42,06 m 5,00 ft / 1,52 m
Upper: 3,55" / 90 mm 436,00 ft / 132,89 m 10,00 ft / 3,05 m
Main Belt covers 117 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 9,45" / 240 mm 2,97" / 75 mm 7,88" / 200 mm
2nd: 9,45" / 240 mm 2,97" / 75 mm 7,88" / 200 mm
3rd: 1,97" / 50 mm 1,97" / 50 mm 1,97" / 50 mm
4th: 0,80" / 20 mm - -
5th: 0,50" / 13 mm - -

- Armoured deck - single deck:
For and Aft decks: 1,77" / 45 mm
Forecastle: 1,20" / 30 mm Quarter deck: 1,20" / 30 mm

- Conning towers: Forward 9,45" / 240 mm, Aft 7,88" / 200 mm

Machinery:
Coal and oil fired boilers, steam turbines,
Direct drive, 4 shafts, 48 000 shp / 35 808 Kw = 25,04 kts
Range 5 000nm at 10,00 kts
Bunker at max displacement = 2 121 tons (90% coal)

Complement:
733 - 954

Cost:
£1,616 million / $6,465 million

Distribution of weights at normal displacement:
Armament: 1 091 tons, 6,5 %
- Guns: 1 091 tons, 6,5 %
Armour: 3 813 tons, 22,8 %
- Belts: 1 826 tons, 10,9 %
- Armament: 751 tons, 4,5 %
- Armour Deck: 993 tons, 5,9 %
- Conning Towers: 244 tons, 1,5 %
Machinery: 4 752 tons, 28,5 %
Hull, fittings & equipment: 4 977 tons, 29,8 %
Fuel, ammunition & stores: 1 830 tons, 11,0 %
Miscellaneous weights: 227 tons, 1,4 %
- Hull below water: 12 tons
- Hull above water: 80 tons
- Above deck: 135 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
12 509 lbs / 5 674 Kg = 25,0 x 10,0 " / 254 mm shells or 1,6 torpedoes
Stability (Unstable if below 1.00): 1,24
Metacentric height 4,9 ft / 1,5 m
Roll period: 14,4 seconds
Steadiness - As gun platform (Average = 50 %): 74 %
- Recoil effect (Restricted arc if above 1.00): 0,39
Seaboat quality (Average = 1.00): 1,11

Hull form characteristics:
Hull has a flush deck,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0,606 / 0,612
Length to Beam Ratio: 7,55 : 1
'Natural speed' for length: 23,96 kts
Power going to wave formation at top speed: 51 %
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: 20,00 %, 18,00 ft / 5,49 m, 16,00 ft / 4,88 m
- Forward deck: 33,00 %, 16,00 ft / 4,88 m, 15,00 ft / 4,57 m
- Aft deck: 31,00 %, 15,00 ft / 4,57 m, 15,00 ft / 4,57 m
- Quarter deck: 16,00 %, 15,00 ft / 4,57 m, 15,00 ft / 4,57 m
- Average freeboard: 15,53 ft / 4,73 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 116,5 %
- Above water (accommodation/working, high = better): 127,2 %
Waterplane Area: 32 085 Square feet or 2 981 Square metres
Displacement factor (Displacement / loading): 95 %
Structure weight / hull surface area: 127 lbs/sq ft or 620 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,99
- Longitudinal: 1,05
- Overall: 1,00
Cramped machinery, storage, compartmentation space
Excellent accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform

Misc weight:
12t => 3 TT x 450 + 3 reloads
80t => 40t for extra pump installation & 40t for extra air ventilation
135t => 109t for Top Fire Control - 1912 - 14km
38t => reserved

The Rock Doctor · January 15, 2022, 11:55:27 AM

So you're adding bulges and replacing armor in a refurbishment, then?

Jefgte · January 15, 2022, 04:18:00 PM

QuoteSo you're adding bulges and replacing armor in a refurbishment, then?

Then, reconstruction is more expensive than refurbishment ...too expensive I think for an old hull & a second class BB.

Jefgte · January 15, 2022, 06:11:53 PM

Not to expensive to have a Colonial BB

			$ x 0,25	BP x 0,1
AC3	14860t		3,715	1,486
to CBB	16670t		$	BP
	new guns	4 x 76,2 AA	0,002	0,001
	new mounts	0	0	0
	new armour	1410	1,41	1,41
	new engines	0	0	0
			5,127	2,897

5.1$ & 2.9BP

Jefgte · January 17, 2022, 09:44:07 AM

What BSs to laid down in 1921 ?

4 x 17170t or 2 x 34000t

Project 6x381, Byzantine Empire Pocket Battleship laid down 1921

Displacement:
   17 170 t light; 18 276 t standard; 19 591 t normal; 20 643 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (490,49 ft / 490,49 ft) x 89,24 ft x (24,10 / 25,20 ft)
   (149,50 m / 149,50 m) x 27,20 m x (7,35 / 7,68 m)

Armament:
6 - 15,00" / 381 mm 42,0 cal guns - 1 920,01lbs / 870,90kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1921 Model
     2 x 3-gun mounts on centreline ends, evenly spread
12 - 4,72" / 120 mm 45,0 cal guns - 50,00lbs / 22,68kg shells, 200 per gun
     Quick firing guns in deck and hoist mounts, 1921 Model
     6 x 2-gun mounts on sides, evenly spread
4 - 3,00" / 76,2 mm 45,0 cal guns - 13,62lbs / 6,18kg shells, 220 per gun
     Anti-air guns in deck mounts, 1921 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
8 - 0,30" / 7,6 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 4 000 per gun
     Machine guns in deck mounts, 1921 Model
     8 x Single mounts on side ends, evenly spread
      8 raised mounts
Weight of broadside 12 175 lbs / 5 522 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13,4" / 340 mm   318,24 ft / 97,00 m   9,84 ft / 3,00 m
   Ends:   1,97" / 50 mm   172,24 ft / 52,50 m   9,84 ft / 3,00 m
   Upper:   3,54" / 90 mm   318,24 ft / 97,00 m   9,84 ft / 3,00 m
     Main Belt covers 100 % of normal length

- Torpedo Bulkhead - Additional damage containing bulkheads:
      1,77" / 45 mm   318,24 ft / 97,00 m   21,65 ft / 6,60 m
   Beam between torpedo bulkheads 65,62 ft / 20,00 m

- Hull void:
      0,36" / 9 mm     1,19 ft / 0,36 m   3,89 ft / 1,19 m

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   15,0" / 380 mm   4,72" / 120 mm      13,4" / 340 mm
   3rd:   0,39" / 10 mm     -           -
   4th:   0,39" / 10 mm     -           -
   5th:   0,39" / 10 mm     -           -

- Armoured deck - multiple decks:
   For and Aft decks: 4,33" / 110 mm
   Forecastle: 1,18" / 30 mm Quarter deck: 1,18" / 30 mm

- Conning towers: Forward 13,39" / 340 mm, Aft 5,91" / 150 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 30 000 shp / 22 380 Kw = 21,06 kts
   Range 10 000nm at 12,00 kts
   Bunker at max displacement = 2 367 tons

Complement:
   827 - 1 076

Cost:
   £4,235 million / $16,941 million

Distribution of weights at normal displacement:
   Armament: 2 042 tons, 10,4 %
     - Guns: 2 042 tons, 10,4 %
   Armour: 6 888 tons, 35,2 %
     - Belts: 2 516 tons, 12,8 %
     - Torpedo bulkhead: 452 tons, 2,3 %
     - Void: 0 tons, 0,0 %
     - Armament: 1 291 tons, 6,6 %
     - Armour Deck: 2 328 tons, 11,9 %
     - Conning Towers: 302 tons, 1,5 %
   Machinery: 1 033 tons, 5,3 %
   Hull, fittings & equipment: 6 765 tons, 34,5 %
   Fuel, ammunition & stores: 2 420 tons, 12,4 %
   Miscellaneous weights: 442 tons, 2,3 %
     - Hull below water: 85 tons
     - Hull above water: 85 tons
     - On freeboard deck: 42 tons
     - Above deck: 230 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     30 896 lbs / 14 014 Kg = 18,3 x 15,0 " / 381 mm shells or 5,9 torpedoes
   Stability (Unstable if below 1.00): 1,21
   Metacentric height 6,0 ft / 1,8 m
   Roll period: 15,3 seconds
   Steadiness   - As gun platform (Average = 50 %): 74 %
         - Recoil effect (Restricted arc if above 1.00): 0,63
   Seaboat quality (Average = 1.00): 1,20

Hull form characteristics:
   Hull has a flush deck,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,650 / 0,655
   Length to Beam Ratio: 5,50 : 1
   'Natural speed' for length: 22,15 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 62
   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, 18,37 ft / 5,60 m
     - Forward deck:   32,50 %, 18,37 ft / 5,60 m, 15,09 ft / 4,60 m
     - Aft deck:   32,50 %, 15,09 ft / 4,60 m, 15,09 ft / 4,60 m
     - Quarter deck:   17,50 %, 15,09 ft / 4,60 m, 15,09 ft / 4,60 m
     - Average freeboard:      16,43 ft / 5,01 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 84,0 %
      - Above water (accommodation/working, high = better): 122,9 %
   Waterplane Area: 33 531 Square feet or 3 115 Square metres
   Displacement factor (Displacement / loading): 108 %
   Structure weight / hull surface area: 176 lbs/sq ft or 859 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,93
      - Longitudinal: 1,87
      - Overall: 1,00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

205t for 1918 Fire Control
25t for Marconi
85t for additionnal pumps
85t for additionnal ventilation
42t reserved...

-------

Project A, Byzantine Empire BB8 laid down 1921

Displacement:
   34 000 t light; 36 159 t standard; 38 211 t normal; 39 854 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (668,31 ft / 666,01 ft) x 108,27 ft (Bulges 118,11 ft) x (26,73 / 27,79 ft)
   (203,70 m / 203,00 m) x 33,00 m (Bulges 36,00 m) x (8,15 / 8,47 m)

Armament:
12 - 15,00" / 381 mm 45,0 cal guns - 1 920,01lbs / 870,90kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1921 Model
     4 x Triple mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
20 - 4,72" / 120 mm 45,0 cal guns - 53,18lbs / 24,12kg shells, 180 per gun
     Quick firing guns in deck and hoist mounts, 1921 Model
     10 x Twin mounts on sides, evenly spread
4 - 3,00" / 76,2 mm 45,0 cal guns - 13,62lbs / 6,18kg shells, 250 per gun
     Anti-air guns in deck mounts, 1921 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
8 - 0,30" / 7,6 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 4 000 per gun
     Machine guns in deck mounts, 1921 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
Weight of broadside 24 158 lbs / 10 958 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13,4" / 340 mm   433,07 ft / 132,00 m   12,47 ft / 3,80 m
   Ends:   1,97" / 50 mm   232,94 ft / 71,00 m   9,84 ft / 3,00 m
   Upper:   3,94" / 100 mm   433,07 ft / 132,00 m   12,47 ft / 3,80 m
     Main Belt covers 100 % of normal length

- Torpedo Bulkhead - Strengthened structural bulkheads:
      1,97" / 50 mm   433,07 ft / 132,00 m   24,61 ft / 7,50 m
   Beam between torpedo bulkheads 91,86 ft / 28,00 m

- Hull Bulges:
      0,39" / 10 mm   433,07 ft / 132,00 m   26,25 ft / 8,00 m

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   15,0" / 380 mm   4,72" / 120 mm      13,4" / 340 mm
   2nd:   0,79" / 20 mm     -           -
   3rd:   0,39" / 10 mm     -           -
   4th:   0,39" / 10 mm     -           -

- Armoured deck - multiple decks:
   For and Aft decks: 4,53" / 115 mm
   Forecastle: 1,57" / 40 mm Quarter deck: 1,57" / 40 mm

- Conning towers: Forward 11,81" / 300 mm, Aft 5,91" / 150 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 42 000 shp / 31 332 Kw = 21,12 kts
   Range 10 000nm at 12,00 kts
   Bunker at max displacement = 3 695 tons

Complement:
   1 366 - 1 776

Cost:
   £8,657 million / $34,628 million

Distribution of weights at normal displacement:
   Armament: 3 632 tons, 9,5 %
     - Guns: 3 632 tons, 9,5 %
   Armour: 13 123 tons, 34,3 %
     - Belts: 4 289 tons, 11,2 %
     - Torpedo bulkhead: 776 tons, 2,0 %
     - Bulges: 166 tons, 0,4 %
     - Armament: 3 434 tons, 9,0 %
     - Armour Deck: 4 026 tons, 10,5 %
     - Conning Towers: 433 tons, 1,1 %
   Machinery: 1 446 tons, 3,8 %
   Hull, fittings & equipment: 14 901 tons, 39,0 %
   Fuel, ammunition & stores: 4 211 tons, 11,0 %
   Miscellaneous weights: 898 tons, 2,4 %
     - Hull below water: 170 tons
     - Hull above water: 170 tons
     - On freeboard deck: 170 tons
     - Above deck: 388 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     62 084 lbs / 28 161 Kg = 36,8 x 15,0 " / 381 mm shells or 11,5 torpedoes
   Stability (Unstable if below 1.00): 1,20
   Metacentric height 7,9 ft / 2,4 m
   Roll period: 17,6 seconds
   Steadiness   - As gun platform (Average = 50 %): 75 %
         - Recoil effect (Restricted arc if above 1.00): 0,68
   Seaboat quality (Average = 1.00): 1,34

Hull form characteristics:
   Hull has a flush deck,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,636 / 0,638
   Length to Beam Ratio: 5,64 : 1
   'Natural speed' for length: 25,81 kts
   Power going to wave formation at top speed: 42 %
   Trim (Max stability = 0, Max steadiness = 100): 56
   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 %, 26,25 ft / 8,00 m, 22,97 ft / 7,00 m
     - Forward deck:   32,50 %, 22,97 ft / 7,00 m, 19,69 ft / 6,00 m
     - Aft deck:   32,50 %, 19,69 ft / 6,00 m, 19,69 ft / 6,00 m
     - Quarter deck:   17,50 %, 19,69 ft / 6,00 m, 19,69 ft / 6,00 m
     - Average freeboard:      21,02 ft / 6,41 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 72,6 %
      - Above water (accommodation/working, high = better): 155,9 %
   Waterplane Area: 54 532 Square feet or 5 066 Square metres
   Displacement factor (Displacement / loading): 106 %
   Structure weight / hull surface area: 233 lbs/sq ft or 1 136 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,95
      - Longitudinal: 1,46
      - Overall: 1,00
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

363t for 1918 Fire Control
25t for Marconi
170t for additionnal pumps
170t for additionnal ventilation
170t reserved...

The Rock Doctor · January 17, 2022, 11:01:01 AM

I'd be going with the big boys unless you need the extra numbers.

Desertfox · January 17, 2022, 01:13:37 PM

"One of column A, two of column B..."

Jefgte · January 18, 2022, 09:30:17 AM

For the BBs, I choose 2 x 34000t

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

C7, Byzantine Empire C7 laid down 1921

Gayal & Girga

Displacement:
   5 500 t light; 5 768 t standard; 6 478 t normal; 7 046 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (490,49 ft / 490,49 ft) x 53,48 ft x (17,12 / 18,25 ft)
   (149,50 m / 149,50 m) x 16,30 m x (5,22 / 5,56 m)

Armament:
6 - 7,52" / 191 mm 45,0 cal guns - 214,42lbs / 97,26kg shells, 140 per gun
     Breech loading guns in deck and hoist mounts, 1921 Model
     6 x Single mounts on centreline ends, evenly spread
      2 raised mounts - superfiring
6 - 4,72" / 120 mm 45,0 cal guns - 53,18lbs / 24,12kg shells, 200 per gun
     Quick firing guns in deck mounts, 1921 Model
     6 x Single mounts on sides, evenly spread
2 - 3,00" / 76,2 mm 45,0 cal guns - 13,62lbs / 6,18kg shells, 200 per gun
     Anti-air guns in deck mounts, 1921 Model
     2 x Single mounts on sides, forward deck centre
      2 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, 1921 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
Weight of broadside 1 633 lbs / 741 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3,94" / 100 mm   337,93 ft / 103,00 m   9,84 ft / 3,00 m
   Ends:   1,38" / 35 mm   152,56 ft / 46,50 m   9,02 ft / 2,75 m
     Main Belt covers 106 % of normal length

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   2,76" / 70 mm   0,79" / 20 mm      2,17" / 55 mm
   3rd:   0,78" / 20 mm     -           -
   4th:   0,39" / 10 mm     -           -
   5th:   0,39" / 10 mm     -           -

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

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

Machinery:
   Coal and oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 48 000 shp / 35 808 Kw = 29,07 kts
   Range 10 000nm at 12,00 kts
   Bunker at max displacement = 1 278 tons (25% coal)

Complement:
   360 - 469

Cost:
   £1,443 million / $5,771 million

Distribution of weights at normal displacement:
   Armament: 398 tons, 6,1 %
     - Guns: 398 tons, 6,1 %
   Armour: 1 156 tons, 17,8 %
     - Belts: 605 tons, 9,3 %
     - Armament: 77 tons, 1,2 %
     - Armour Deck: 426 tons, 6,6 %
     - Conning Towers: 47 tons, 0,7 %
   Machinery: 1 691 tons, 26,1 %
   Hull, fittings & equipment: 1 997 tons, 30,8 %
   Fuel, ammunition & stores: 978 tons, 15,1 %
   Miscellaneous weights: 258 tons, 4,0 %
     - Hull below water: 28 tons
     - Hull above water: 28 tons
     - On freeboard deck: 137 tons
     - Above deck: 65 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5 936 lbs / 2 693 Kg = 27,9 x 7,5 " / 191 mm shells or 1,1 torpedoes
   Stability (Unstable if below 1.00): 1,07
   Metacentric height 2,2 ft / 0,7 m
   Roll period: 15,0 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,64
   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): 0,505 / 0,515
   Length to Beam Ratio: 9,17 : 1
   'Natural speed' for length: 22,15 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   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, 18,37 ft / 5,60 m
     - Forward deck:   32,50 %, 18,37 ft / 5,60 m, 14,76 ft / 4,50 m
     - Aft deck:   32,50 %, 14,76 ft / 4,50 m, 14,76 ft / 4,50 m
     - Quarter deck:   17,50 %, 14,76 ft / 4,50 m, 14,76 ft / 4,50 m
     - Average freeboard:      16,21 ft / 4,94 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 105,9 %
      - Above water (accommodation/working, high = better): 145,5 %
   Waterplane Area: 17 556 Square feet or 1 631 Square metres
   Displacement factor (Displacement / loading): 106 %
   Structure weight / hull surface area: 82 lbs/sq ft or 400 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,87
      - Longitudinal: 1,21
      - Overall: 0,90
   Caution: Hull subject to strain in open-sea
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

25t for Long Range Marconi
40t for top mast rangefinder - FC1914
28t for climatisation
28t for additionnal pumps
32t for 8TTx21" HW
80t for 2x40 minen
25t reserved

Jefgte · January 24, 2022, 10:57:45 AM

Testing the reconstruction of AGB5850t
cost 2.61$ & 1.86BP

AGB5850 to AGB 4450t, Byzantine Empire Armored Colonial Gunboat laid down 1897 (Engine 1921)

Displacement:
   4 450 t light; 4 648 t standard; 4 912 t normal; 5 123 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (410,00 ft / 404,00 ft) x 57,00 ft x (11,93 / 12,35 ft)
   (124,97 m / 123,14 m) x 17,37 m x (3,64 / 3,77 m)

Armament:
4 - 7,52" / 191 mm 45,0 cal guns - 214,42lbs / 97,26kg shells, 120 per gun
     Breech loading guns in turret on barbette mounts, 1921 Model
     2 x Twin mounts on centreline ends, evenly spread
8 - 4,72" / 120 mm 45,0 cal guns - 53,17lbs / 24,12kg shells, 150 per gun
     Quick firing guns in deck and hoist mounts, 1921 Model
     8 x Single mounts on sides, evenly spread
4 - 3,00" / 76,2 mm 45,0 cal guns - 13,62lbs / 6,18kg shells, 220 per gun
     Anti-air guns in deck mounts, 1921 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, 1897 Model
     4 x Single mounts on sides, evenly spread
Weight of broadside 1 338 lbs / 607 kg

Armour:
- Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3,94" / 100 mm   374,02 ft / 114,00 m   10,33 ft / 3,15 m
   Ends:   0,98" / 25 mm     29,53 ft / 9,00 m   6,00 ft / 1,83 m
     0,46 ft / 0,14 m Unarmoured ends
   Upper:   0,98" / 25 mm   374,02 ft / 114,00 m   6,56 ft / 2,00 m
     Main Belt covers 142 % of normal length

- Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   4,72" / 120 mm   1,38" / 35 mm      3,94" / 100 mm
   2nd:   0,79" / 20 mm     -         1,57" / 40 mm
   3rd:   0,39" / 10 mm     -           -
   4th:   0,39" / 10 mm     -           -

- Protected deck - single deck:
   For and Aft decks: 1,18" / 30 mm
   Forecastle: 0,79" / 20 mm Quarter deck: 0,79" / 20 mm

- Conning towers: Forward 3,94" / 100 mm, Aft 1,38" / 35 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 23 000 shp / 17 158 Kw = 24,07 kts
   Range 6 000nm at 10,00 kts
   Bunker at max displacement = 475 tons (25% coal)

Complement:
   293 - 381

Cost:
   £0,393 million / $1,573 million

Distribution of weights at normal displacement:
   Armament: 319 tons, 6,5 %
     - Guns: 319 tons, 6,5 %
   Armour: 1 236 tons, 25,2 %
     - Belts: 711 tons, 14,5 %
     - Armament: 142 tons, 2,9 %
     - Armour Deck: 351 tons, 7,1 %
     - Conning Towers: 33 tons, 0,7 %
   Machinery: 810 tons, 16,5 %
   Hull, fittings & equipment: 1 937 tons, 39,4 %
   Fuel, ammunition & stores: 462 tons, 9,4 %
   Miscellaneous weights: 147 tons, 3,0 %
     - Hull below water: 30 tons
     - Hull above water: 30 tons
     - On freeboard deck: 30 tons
     - Above deck: 57 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     8 338 lbs / 3 782 Kg = 39,2 x 7,5 " / 191 mm shells or 1,7 torpedoes
   Stability (Unstable if below 1.00): 1,16
   Metacentric height 2,8 ft / 0,9 m
   Roll period: 14,2 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,39
   Seaboat quality (Average = 1.00): 1,02

Hull form characteristics:
   Hull has raised forecastle,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,626 / 0,630
   Length to Beam Ratio: 7,09 : 1
   'Natural speed' for length: 20,10 kts
   Power going to wave formation at top speed: 57 %
   Trim (Max stability = 0, Max steadiness = 100): 69
   Bow angle (Positive = bow angles forward): -15,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
     - Forecastle:   20,00 %, 22,31 ft / 6,80 m, 20,34 ft / 6,20 m
     - Forward deck:   30,00 %, 16,40 ft / 5,00 m, 14,27 ft / 4,35 m
     - Aft deck:   30,00 %, 14,27 ft / 4,35 m, 14,27 ft / 4,35 m
     - Quarter deck:   20,00 %, 14,27 ft / 4,35 m, 14,27 ft / 4,35 m
     - Average freeboard:      15,96 ft / 4,87 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 78,7 %
      - Above water (accommodation/working, high = better): 166,1 %
   Waterplane Area: 17 255 Square feet or 1 603 Square metres
   Displacement factor (Displacement / loading): 117 %
   Structure weight / hull surface area: 90 lbs/sq ft or 437 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,95
      - Longitudinal: 1,54
      - Overall: 1,00
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform

16t for 4 subTT x 15'' + 4 reloads
26t for top fire control
25t for Marconi
30t for additionnal pumps
30t for additionnal ventilation
30t reserved

Rapid calculation

AGB 5850t	5850t => 4450t		$	BP
	5850 x 0,25		1,462	0,585
	new guns	4x191	0,386	0,193	(193t)
	new guns	8x120	0,148	0,074	(74t)
	new guns	4x76,2	0,02	0,01	(10t)
	new belt	194t	0,194	0,194
	new engines	810t	0,81	0,81
Scrapp 15%		Total =>	3,02	1,866

	old guns	4x191	0,0192	0,0192	(192t)
	old guns	8x102	0,006	0,006	(46t)
	old armour	0	0	0
- scrap cost	old engines	2590t	0,388	0,388
- scrap cost		Total =>	0,4132	0,4132
	3,02 - 0,413 =>		2,607$
	1,866 - 0,413 =>			1,865 BP
			$	BP

--------------------------
Original built

In 1912, all 4 ships were renamed Light Armored Cruiser & affected to colonies

AGB5850, Byzantine Empire Armored Gunboat laid down 1897

Amman - Bagdad
Sanaa - Cairo

Displacement:
5 850 t light; 6 063 t standard; 6 534 t normal; 6 911 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(410,00 ft / 404,00 ft) x 57,00 ft x (15,87 / 16,63 ft)
(124,97 m / 123,14 m) x 17,37 m x (4,84 / 5,07 m)

Armament:
4 - 7,50" / 191 mm 45,0 cal guns - 212,75lbs / 96,50kg shells, 120 per gun
Breech loading guns in turret on barbette mounts, 1897 Model
2 x Twin mounts on centreline ends, evenly spread
8 - 4,00" / 102 mm 45,0 cal guns - 32,28lbs / 14,64kg shells, 180 per gun
Quick firing guns in deck mounts, 1897 Model
8 x Single mounts on sides, evenly spread
4 - 0,30" / 7,7 mm 50,0 cal guns - 0,01lbs / 0,00kg shells, 2 000 per gun
Machine guns in deck mounts, 1897 Model
4 x Single mounts on sides, evenly spread
Weight of broadside 1 109 lbs / 503 kg

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3,95" / 100 mm 374,00 ft / 114,00 m 7,06 ft / 2,15 m
Ends: 0,97" / 25 mm 30,00 ft / 9,14 m 6,00 ft / 1,83 m
Upper: 0,97" / 25 mm 374,00 ft / 114,00 m 6,56 ft / 2,00 m
Main Belt covers 142 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4,72" / 120 mm 1,38" / 35 mm 3,95" / 100 mm
3rd: 0,39" / 10 mm - -
4th: 0,39" / 10 mm - -

- Protected deck - single deck:
For and Aft decks: 1,17" / 30 mm
Forecastle: 0,79" / 20 mm Quarter deck: 0,79" / 20 mm

- Conning towers: Forward 3,95" / 100 mm, Aft 1,37" / 35 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 15 800 ihp / 11 787 Kw = 21,08 kts
Range 4 000nm at 10,00 kts
Bunker at max displacement = 848 tons (100% coal)

Complement:
363 - 472

Cost:
£0,660 million / $2,639 million

Distribution of weights at normal displacement:
Armament: 238 tons, 3,6 %
- Guns: 238 tons, 3,6 %
Armour: 1 017 tons, 15,6 %
- Belts: 517 tons, 7,9 %
- Armament: 112 tons, 1,7 %
- Armour Deck: 348 tons, 5,3 %
- Conning Towers: 40 tons, 0,6 %
Machinery: 2 590 tons, 39,6 %
Hull, fittings & equipment: 1 819 tons, 27,8 %
Fuel, ammunition & stores: 684 tons, 10,5 %
Miscellaneous weights: 186 tons, 2,8 %
- Hull below water: 16 tons
- Hull above water: 30 tons
- On freeboard deck: 30 tons
- Above deck: 110 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3 730 lbs / 1 692 Kg = 17,7 x 7,5 " / 191 mm shells or 0,8 torpedoes
Stability (Unstable if below 1.00): 1,52
Metacentric height 4,4 ft / 1,3 m
Roll period: 11,4 seconds
Steadiness - As gun platform (Average = 50 %): 71 %
- Recoil effect (Restricted arc if above 1.00): 0,16
Seaboat quality (Average = 1.00): 1,16

Hull form characteristics:
Hull has a flush deck,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0,626 / 0,632
Length to Beam Ratio: 7,09 : 1
'Natural speed' for length: 20,10 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 61
Bow angle (Positive = bow angles forward): -15,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20,00 %, 15,10 ft / 4,60 m, 13,12 ft / 4,00 m
- Forward deck: 30,00 %, 13,12 ft / 4,00 m, 11,00 ft / 3,35 m
- Aft deck: 30,00 %, 11,00 ft / 3,35 m, 11,00 ft / 3,35 m
- Quarter deck: 20,00 %, 11,00 ft / 3,35 m, 11,00 ft / 3,35 m
- Average freeboard: 11,90 ft / 3,63 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 142,2 %
- Above water (accommodation/working, high = better): 104,4 %
Waterplane Area: 17 255 Square feet or 1 603 Square metres
Displacement factor (Displacement / loading): 90 %
Structure weight / hull surface area: 84 lbs/sq ft or 408 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,99
- Longitudinal: 1,07
- Overall: 1,00
Cramped machinery, storage, compartmentation space
Adequate accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform

16t for 4 subTT x 18'' + 4 reloads
100t for top fire control
30t for additionnal pumps
30t for additionnal ventilation

1909 refit
10t for short marconi

The Rock Doctor · January 24, 2022, 11:04:13 AM

The cash cost of the new engines would be twice as much as the BP cost.

I think it is not worth the expense, but that's me.

Jefgte · January 24, 2022, 03:46:43 PM

QuoteThe cash cost of the new engines would be twice as much as the BP cost.

Ok, that was a rapid calculation. Thanks
=> 3,417$ & 1,453BP

QuoteI think it is not worth the expense, but that's me.

It is difficult to increase the speed to 27kts without having poor seakeeping.
These reconstructions can be numerous in a colonial squadron near the BBs and face other 4000-5000t cruisers. They can serve another 10 to 12 years.
With these colonies in the Atlantic and in the Indian Ocean, Byzantium needs cruisers and GB in quantity... like most of us.

In 1921, Byzantium will have 44 cruisers:
- 20 squadron cruisers 24/29kts
- 16 of 21kts.
- 8 in reconstruction 24/27kts

The Rock Doctor · January 25, 2022, 04:27:17 PM

Think I've got ~32 cruisers at the moment, not counting ACs/BCs, but my sealanes are a bit more compact than Byzantium's.