Barbarossa refurbishment

[Jefgte]

To have an uniform battle squadron speed of 21kts, I test a possible refurbishment of 1896 18kts Barbarossa class.

Refurbishment:
New 1910 engines
New 13"5 40cal (was 35cal)
Freeboard increase by 1'
Draught decrease by 1'
Add external torpedo bulkhead 1'
Misc weight adjusted for overall 1

Barbarossa, Byzantine Empire BB2 laid down 1896 (Engine 1910)

Displacement:
   15 200 t light; 16 233 t standard; 16 987 t normal; 17 590 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (491,00 ft / 480,00 ft) x 79,00 ft x (25,05 / 25,79 ft)
   (149,66 m / 146,30 m) x 24,08 m  x (7,63 / 7,86 m)

Armament:
      4 - 13,50" / 343 mm 40,0 cal guns - 1 179,03lbs / 534,80kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1910 Model
     2 x Twin mounts on centreline ends, evenly spread
      8 - 9,20" / 234 mm 45,0 cal guns - 392,67lbs / 178,11kg shells, 150 per gun
     Breech loading guns in turret on barbette mounts, 1896 Model
     4 x Twin mounts on side ends, evenly spread
      10 - 6,00" / 152 mm 45,0 cal guns - 108,93lbs / 49,41kg shells, 220 per gun
     Quick firing guns in casemate mounts, 1896 Model
     10 x Single mounts on sides, evenly spread
      16 - 3,00" / 76,2 mm 45,0 cal guns - 13,62lbs / 6,18kg shells, 300 per gun
     Quick firing guns in deck mounts, 1896 Model
     16 x Single mounts on side ends, evenly spread
      16 raised mounts
      4 - 0,30" / 7,7 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 2 000 per gun
     Machine guns in deck mounts, 1896 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
      Weight of broadside 9 165 lbs / 4 157 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   11,8" / 300 mm   312,00 ft / 95,10 m   11,00 ft / 3,35 m
   Ends:   4,72" / 120 mm   168,00 ft / 51,21 m   7,00 ft / 2,13 m
   Upper:   5,92" / 150 mm   312,00 ft / 95,10 m   8,00 ft / 2,44 m
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead - Strengthened structural bulkheads:
      1,00" / 25 mm   312,00 ft / 95,10 m   23,00 ft / 7,01 m
   Beam between torpedo bulkheads 79,00 ft / 24,08 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13,4" / 340 mm   5,92" / 150 mm      12,6" / 320 mm
   2nd:   5,92" / 150 mm   2,55" / 65 mm      4,72" / 120 mm
   3rd:   4,72" / 120 mm   1,97" / 50 mm            -
   4th:   0,50" / 13 mm         -               -
   5th:   0,50" / 13 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 2,55" / 65 mm
   Forecastle: 1,37" / 35 mm  Quarter deck: 1,37" / 35 mm

   - Conning towers: Forward 11,80" / 300 mm, Aft 5,92" / 150 mm

Machinery:
   Coal and oil fired boilers, reciprocating cruising steam engines and steam turbines
   Direct drive, 4 shafts, 26 814 ihp / 20 003 Kw = 21,05 kts
   Range 4 500nm at 10,00 kts
   Bunker at max displacement = 1 357 tons (90% coal)

Complement:
   743 - 967

Cost:
   £1,544 million / $6,174 million

Distribution of weights at normal displacement:
   Armament: 1 647 tons, 9,7 %
      - Guns: 1 647 tons, 9,7 %
   Armour: 5 767 tons, 33,9 %
      - Belts: 2 649 tons, 15,6 %
      - Torpedo bulkhead: 266 tons, 1,6 %
      - Armament: 1 370 tons, 8,1 %
      - Armour Deck: 1 231 tons, 7,2 %
      - Conning Towers: 252 tons, 1,5 %
   Machinery: 1 886 tons, 11,1 %
   Hull, fittings & equipment: 5 211 tons, 30,7 %
   Fuel, ammunition & stores: 1 787 tons, 10,5 %
   Miscellaneous weights: 689 tons, 4,1 %
      - Hull below water: 24 tons
      - Hull above water: 175 tons
      - On freeboard deck: 300 tons
      - Above deck: 190 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     20 539 lbs / 9 316 Kg = 16,7 x 13,5 " / 343 mm shells or 3,4 torpedoes
   Stability (Unstable if below 1.00): 1,19
   Metacentric height 4,8 ft / 1,5 m
   Roll period: 15,1 seconds
   Steadiness   - As gun platform (Average = 50 %): 65 %
         - Recoil effect (Restricted arc if above 1.00): 0,63
   Seaboat quality  (Average = 1.00): 1,25

Hull form characteristics:
   Hull has a flush deck,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,626 / 0,630
   Length to Beam Ratio: 6,08 : 1
   'Natural speed' for length: 21,91 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 52
   Bow angle (Positive = bow angles forward): -10,00 degrees
   Stern overhang: 1,00 ft / 0,30 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   17,50 %,  18,72 ft / 5,71 m,  16,43 ft / 5,01 m
      - Forward deck:   30,00 %,  16,43 ft / 5,01 m,  15,45 ft / 4,71 m
      - Aft deck:   35,00 %,  15,45 ft / 4,71 m,  15,45 ft / 4,71 m
      - Quarter deck:   17,50 %,  15,45 ft / 4,71 m,  15,45 ft / 4,71 m
      - Average freeboard:      15,93 ft / 4,85 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 78,8 %
      - Above water (accommodation/working, high = better): 114,2 %
   Waterplane Area: 28 413 Square feet or 2 640 Square metres
   Displacement factor (Displacement / loading): 98 %
   Structure weight / hull surface area: 159 lbs/sq ft or 776 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,94
      - Longitudinal: 1,79
      - Overall: 1,00
   Excellent machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Good seaboat, rides out heavy weather easily

24t for 4TT x18'' + 4 reloads
100t for additionnal air ventillation
100t for additionnal pumps installation
165t for fire control
100t for Admiral staff
50t for 2x Marconi
150t reserved

---------
Barbarossa as built
Barbarossa, Byzantine Empire BB2 laid down 1896

Displacement:
   15 650 t light; 16 691 t standard; 17 666 t normal; 18 447 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (491,00 ft / 480,00 ft) x 79,00 ft x (26,05 / 27,01 ft)
   (149,66 m / 146,30 m) x 24,08 m  x (7,94 / 8,23 m)

Armament:
      4 - 13,50" / 343 mm 35,0 cal guns - 1 153,48lbs / 523,21kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1896 Model
     2 x Twin mounts on centreline ends, evenly spread
      8 - 9,20" / 234 mm 45,0 cal guns - 392,67lbs / 178,11kg shells, 150 per gun
     Breech loading guns in turret on barbette mounts, 1896 Model
     4 x Twin mounts on side ends, evenly spread
      10 - 6,00" / 152 mm 45,0 cal guns - 108,93lbs / 49,41kg shells, 220 per gun
     Quick firing guns in casemate mounts, 1896 Model
     10 x Single mounts on sides, evenly spread
      16 - 3,00" / 76,2 mm 45,0 cal guns - 13,62lbs / 6,18kg shells, 300 per gun
     Quick firing guns in deck mounts, 1896 Model
     16 x Single mounts on side ends, evenly spread
      16 raised mounts
      4 - 0,30" / 7,7 mm 50,0 cal guns - 0,01lbs / 0,00kg shells, 2 000 per gun
     Quick firing guns in deck mounts, 1896 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
      Weight of broadside 9 063 lbs / 4 111 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   11,8" / 300 mm   312,00 ft / 95,10 m   11,00 ft / 3,35 m
   Ends:   4,72" / 120 mm   168,00 ft / 51,21 m   7,00 ft / 2,13 m
   Upper:   5,92" / 150 mm   312,00 ft / 95,10 m   8,00 ft / 2,44 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13,4" / 340 mm   5,92" / 150 mm      12,6" / 320 mm
   2nd:   5,92" / 150 mm   2,55" / 65 mm      4,72" / 120 mm
   3rd:   4,72" / 120 mm   1,97" / 50 mm            -
   4th:   0,50" / 13 mm         -               -
   5th:   0,50" / 13 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 2,55" / 65 mm
   Forecastle: 1,37" / 35 mm  Quarter deck: 1,37" / 35 mm

   - Conning towers: Forward 11,80" / 300 mm, Aft 5,92" / 150 mm

Machinery:
   Coal fired boilers, simple reciprocating steam engines,
   Direct drive, 4 shafts, 15 200 ihp / 11 339 Kw = 18,05 kts
   Range 4 500nm at 10,00 kts
   Bunker at max displacement = 1 756 tons (100% coal)

Complement:
   766 - 996

Cost:
   £1,629 million / $6,517 million

Distribution of weights at normal displacement:
   Armament: 1 543 tons, 8,7 %
      - Guns: 1 543 tons, 8,7 %
   Armour: 5 461 tons, 30,9 %
      - Belts: 2 643 tons, 15,0 %
      - Armament: 1 329 tons, 7,5 %
      - Armour Deck: 1 231 tons, 7,0 %
      - Conning Towers: 259 tons, 1,5 %
   Machinery: 2 789 tons, 15,8 %
   Hull, fittings & equipment: 5 338 tons, 30,2 %
   Fuel, ammunition & stores: 2 016 tons, 11,4 %
   Miscellaneous weights: 519 tons, 2,9 %
      - Hull below water: 24 tons
      - Hull above water: 75 tons
      - On freeboard deck: 240 tons
      - Above deck: 180 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     18 360 lbs / 8 328 Kg = 14,9 x 13,5 " / 343 mm shells or 2,3 torpedoes
   Stability (Unstable if below 1.00): 1,23
   Metacentric height 5,1 ft / 1,6 m
   Roll period: 14,7 seconds
   Steadiness   - As gun platform (Average = 50 %): 75 %
         - Recoil effect (Restricted arc if above 1.00): 0,60
   Seaboat quality  (Average = 1.00): 1,45

Hull form characteristics:
   Hull has a flush deck,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,626 / 0,630
   Length to Beam Ratio: 6,08 : 1
   'Natural speed' for length: 21,91 kts
   Power going to wave formation at top speed: 42 %
   Trim (Max stability = 0, Max steadiness = 100): 52
   Bow angle (Positive = bow angles forward): -10,00 degrees
   Stern overhang: 1,00 ft / 0,30 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   17,50 %,  17,72 ft / 5,40 m,  15,43 ft / 4,70 m
      - Forward deck:   30,00 %,  15,43 ft / 4,70 m,  14,45 ft / 4,40 m
      - Aft deck:   35,00 %,  14,45 ft / 4,40 m,  14,45 ft / 4,40 m
      - Quarter deck:   17,50 %,  14,45 ft / 4,40 m,  14,45 ft / 4,40 m
      - Average freeboard:      14,93 ft / 4,55 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 89,0 %
      - Above water (accommodation/working, high = better): 103,7 %
   Waterplane Area: 28 413 Square feet or 2 640 Square metres
   Displacement factor (Displacement / loading): 97 %
   Structure weight / hull surface area: 155 lbs/sq ft or 755 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,94
      - Longitudinal: 1,66
      - Overall: 1,00
   Adequate 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

24t for 4TT x18'' + 4 reloads
75t for additionnal air ventillation
75t for additionnal pumps installation
155t for fire control
100t for Admiral staff
25t for Marconi
65t reserved

[Kaiser Kirk]

Couple things

- you're increasing the gun size - 35 to 40cal, so it's a reconstruction
- what is an "external" torpedo bulkhead ??  A 25mm armor sheet on the outside of the hull??  That really won't do any good, just make large splinters to be ejected inward.
- Oddly, I am quite sure snip stated that upgrades in engines needed to be to Electric motors, he had some reason also. But I do not see that in the rules.


What exactly to do with my older vessels is something I've got ideas on.  Since in N6 I had the Italians with fast ships, it was fairly simple just to have fast old BBs (20knts) turn into a "slow" 20knot DN battleline.

However, I'm sadly aware my main battery guns, in those pre-1900 slow ROF turrets, are badly out of date.  I've tinkered with a couple ships, though I was thinking I had to use electric engines.

So a conversion like what you have may be on the books once the Tiamat class completes. That will give me a battleline 6 modern dreadnaughts w/integral TDS, plus the two Gilgamesh DN's with no TDS, and the older BBs and ACs may get upgrades at that time.

[Jefgte]

Barbarossa, Byzantine Empire BB2 laid down 1896 (Engine 1910)

Displacement:
   15 200 t light; 16 233 t standard; 16 987 t normal; 17 590 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (491,00 ft / 480,00 ft) x 79,00 ft x (25,05 / 25,79 ft)
   (149,66 m / 146,30 m) x 24,08 m  x (7,63 / 7,86 m)

Armament:
      4 - 13,50" / 343 mm 40,0 cal guns - 1 179,03lbs / 534,80kg shells, 100 per gun
     Breech loading guns in turret on barbette mounts, 1910 Model
     2 x Twin mounts on centreline ends, evenly spread
      8 - 9,20" / 234 mm 45,0 cal guns - 392,67lbs / 178,11kg shells, 150 per gun
     Breech loading guns in turret on barbette mounts, 1896 Model
     4 x Twin mounts on side ends, evenly spread
      10 - 6,00" / 152 mm 45,0 cal guns - 108,93lbs / 49,41kg shells, 220 per gun
     Quick firing guns in casemate mounts, 1896 Model
     10 x Single mounts on sides, evenly spread
      16 - 3,00" / 76,2 mm 45,0 cal guns - 13,62lbs / 6,18kg shells, 300 per gun
     Quick firing guns in deck mounts, 1896 Model
     16 x Single mounts on side ends, evenly spread
      16 raised mounts
      4 - 0,30" / 7,7 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 2 000 per gun
     Machine guns in deck mounts, 1896 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
      Weight of broadside 9 165 lbs / 4 157 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   11,8" / 300 mm   312,00 ft / 95,10 m   11,00 ft / 3,35 m
   Ends:   4,72" / 120 mm   168,00 ft / 51,21 m   7,00 ft / 2,13 m
   Upper:   5,92" / 150 mm   312,00 ft / 95,10 m   8,00 ft / 2,44 m
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead - Strengthened structural bulkheads:
      1,50" / 38 mm   312,00 ft / 95,10 m   23,00 ft / 7,01 m
   Beam between torpedo bulkheads 73,00 ft / 22,25 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13,4" / 340 mm   5,92" / 150 mm      12,6" / 320 mm
   2nd:   5,92" / 150 mm   2,55" / 65 mm      4,72" / 120 mm
   3rd:   4,72" / 120 mm   1,97" / 50 mm            -
   4th:   0,50" / 13 mm         -               -
   5th:   0,50" / 13 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 2,55" / 65 mm
   Forecastle: 1,37" / 35 mm  Quarter deck: 1,37" / 35 mm

   - Conning towers: Forward 11,80" / 300 mm, Aft 5,92" / 150 mm

Machinery:
   Coal and oil fired boilers, reciprocating cruising steam engines and steam turbines
   Direct drive, 4 shafts, 27 000 ihp / 20 142 Kw = 21,08 kts
   Range 4 500nm at 10,00 kts
   Bunker at max displacement = 1 357 tons (90% coal)

Complement:
   743 - 967

Cost:
   £1,545 million / $6,182 million

Distribution of weights at normal displacement:
   Armament: 1 647 tons, 9,7 %
      - Guns: 1 647 tons, 9,7 %
   Armour: 5 894 tons, 34,7 %
      - Belts: 2 643 tons, 15,6 %
      - Torpedo bulkhead: 398 tons, 2,3 %
      - Armament: 1 370 tons, 8,1 %
      - Armour Deck: 1 231 tons, 7,2 %
      - Conning Towers: 252 tons, 1,5 %
   Machinery: 1 899 tons, 11,2 %
   Hull, fittings & equipment: 5 070 tons, 29,8 %
   Fuel, ammunition & stores: 1 787 tons, 10,5 %
   Miscellaneous weights: 689 tons, 4,1 %
      - Hull below water: 24 tons
      - Hull above water: 175 tons
      - On freeboard deck: 300 tons
      - Above deck: 190 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     20 492 lbs / 9 295 Kg = 16,7 x 13,5 " / 343 mm shells or 3,5 torpedoes
   Stability (Unstable if below 1.00): 1,19
   Metacentric height 4,9 ft / 1,5 m
   Roll period: 15,1 seconds
   Steadiness   - As gun platform (Average = 50 %): 65 %
         - Recoil effect (Restricted arc if above 1.00): 0,63
   Seaboat quality  (Average = 1.00): 1,24

Hull form characteristics:
   Hull has a flush deck,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,626 / 0,630
   Length to Beam Ratio: 6,08 : 1
   'Natural speed' for length: 21,91 kts
   Power going to wave formation at top speed: 50 %
   Trim (Max stability = 0, Max steadiness = 100): 52
   Bow angle (Positive = bow angles forward): -10,00 degrees
   Stern overhang: 1,00 ft / 0,30 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   17,50 %,  18,72 ft / 5,71 m,  16,43 ft / 5,01 m
      - Forward deck:   30,00 %,  16,43 ft / 5,01 m,  15,45 ft / 4,71 m
      - Aft deck:   35,00 %,  15,45 ft / 4,71 m,  15,45 ft / 4,71 m
      - Quarter deck:   17,50 %,  15,45 ft / 4,71 m,  15,45 ft / 4,71 m
      - Average freeboard:      15,93 ft / 4,85 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 85,6 %
      - Above water (accommodation/working, high = better): 114,2 %
   Waterplane Area: 28 413 Square feet or 2 640 Square metres
   Displacement factor (Displacement / loading): 97 %
   Structure weight / hull surface area: 159 lbs/sq ft or 775 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,94
      - Longitudinal: 1,76
      - Overall: 1,00
   Adequate machinery, storage, compartmentation space
   Adequate accommodation and workspace room
   Good seaboat, rides out heavy weather easily

24t for 4TT x18'' + 4 reloads
100t for additionnal air ventillation
100t for additionnal pumps installation
165t for fire control
100t for Admiral staff
50t for 2x Marconi
150t reserved

[Jefgte]

cost:

		$	BP
15,650 x 0,25 $		3,912
new guns	233t	0,233	0,233
new mounts	487t	0,487	0,487
new TDS	398t	0,398	0,398
15,650 x 0,1 BP			1,565
new engines	1899t  / 2	0,95	0,95	Scrap $
old guns	199t			0,0298
old mounts	417t			0,0625
old engines	1886t  / 2			0,14
		- 5,98$	- 3,63BP	+ 0,23$

[Jefgte]

Testing a reconstruction with HMS Swiftsure guns 10"/45 Mark VI

Barbarossa, Byzantine Empire BB2 laid down 1896 (Engine 1910)

Displacement:
   14 630 t light; 15 539 t standard; 16 577 t normal; 17 407 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (491,00 ft / 480,00 ft) x 79,00 ft x (24,44 / 25,46 ft)
   (149,66 m / 146,30 m) x 24,08 m  x (7,45 / 7,76 m)

Armament:
      4 - 10,00" / 254 mm 45,0 cal guns - 504,26lbs / 228,73kg shells, 130 per gun
     Breech loading guns in turret on barbette mounts, 1910 Model
     2 x Twin mounts on centreline ends, evenly spread
      8 - 9,20" / 234 mm 45,0 cal guns - 392,67lbs / 178,11kg shells, 150 per gun
     Breech loading guns in turret on barbette mounts, 1896 Model
     4 x Twin mounts on side ends, evenly spread
      10 - 6,00" / 152 mm 45,0 cal guns - 108,93lbs / 49,41kg shells, 220 per gun
     Quick firing guns in casemate mounts, 1896 Model
     10 x Single mounts on sides, evenly spread
      16 - 3,00" / 76,2 mm 45,0 cal guns - 13,62lbs / 6,18kg shells, 300 per gun
     Quick firing guns in deck mounts, 1896 Model
     16 x Single mounts on side ends, evenly spread
      16 raised mounts
      4 - 0,30" / 7,7 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 2 000 per gun
     Machine guns in deck mounts, 1896 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
      Weight of broadside 6 466 lbs / 2 933 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   11,8" / 300 mm   312,00 ft / 95,10 m   12,00 ft / 3,66 m
   Ends:   4,72" / 120 mm   168,00 ft / 51,21 m   7,00 ft / 2,13 m
   Upper:   5,92" / 150 mm   312,00 ft / 95,10 m   8,00 ft / 2,44 m
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead - Strengthened structural bulkheads:
      1,50" / 38 mm   312,00 ft / 95,10 m   23,44 ft / 7,14 m
   Beam between torpedo bulkheads 73,00 ft / 22,25 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13,4" / 340 mm   5,92" / 150 mm      12,6" / 320 mm
   2nd:   5,92" / 150 mm   2,55" / 65 mm      4,72" / 120 mm
   3rd:   4,72" / 120 mm   1,97" / 50 mm            -
   4th:   0,50" / 13 mm         -               -
   5th:   0,50" / 13 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 2,95" / 75 mm
   Forecastle: 1,37" / 35 mm  Quarter deck: 1,37" / 35 mm

   - Conning towers: Forward 11,80" / 300 mm, Aft 5,92" / 150 mm

Machinery:
   Coal and oil fired boilers, reciprocating cruising steam engines and steam turbines
   Direct drive, 4 shafts, 32 000 ihp / 23 872 Kw = 22,09 kts
   Range 6 500nm at 10,00 kts
   Bunker at max displacement = 1 868 tons (90% coal)

Complement:
   729 - 949

Cost:
   £1,372 million / $5,489 million

Distribution of weights at normal displacement:
   Armament: 1 375 tons, 8,3 %
      - Guns: 1 375 tons, 8,3 %
   Armour: 6 009 tons, 36,2 %
      - Belts: 2 811 tons, 17,0 %
      - Torpedo bulkhead: 406 tons, 2,4 %
      - Armament: 1 141 tons, 6,9 %
      - Armour Deck: 1 402 tons, 8,5 %
      - Conning Towers: 248 tons, 1,5 %
   Machinery: 2 251 tons, 13,6 %
   Hull, fittings & equipment: 4 367 tons, 26,3 %
   Fuel, ammunition & stores: 1 946 tons, 11,7 %
   Miscellaneous weights: 629 tons, 3,8 %
      - Hull below water: 24 tons
      - Hull above water: 175 tons
      - On freeboard deck: 240 tons
      - Above deck: 190 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     21 468 lbs / 9 738 Kg = 42,9 x 10,0 " / 254 mm shells or 3,6 torpedoes
   Stability (Unstable if below 1.00): 1,25
   Metacentric height 5,3 ft / 1,6 m
   Roll period: 14,4 seconds
   Steadiness   - As gun platform (Average = 50 %): 63 %
         - Recoil effect (Restricted arc if above 1.00): 0,43
   Seaboat quality  (Average = 1.00): 1,20

Hull form characteristics:
   Hull has low forecastle,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,626 / 0,631
   Length to Beam Ratio: 6,08 : 1
   'Natural speed' for length: 21,91 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 52
   Bow angle (Positive = bow angles forward): -10,00 degrees
   Stern overhang: 1,00 ft / 0,30 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   17,50 %,  19,12 ft / 5,83 m,  16,03 ft / 4,88 m
      - Forward deck:   30,00 %,  16,63 ft / 5,07 m,  16,05 ft / 4,89 m
      - Aft deck:   35,00 %,  16,05 ft / 4,89 m,  16,05 ft / 4,89 m
      - Quarter deck:   17,50 %,  16,05 ft / 4,89 m,  16,05 ft / 4,89 m
      - Average freeboard:      16,35 ft / 4,98 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 83,4 %
      - Above water (accommodation/working, high = better): 120,1 %
   Waterplane Area: 28 413 Square feet or 2 640 Square metres
   Displacement factor (Displacement / loading): 102 %
   Structure weight / hull surface area: 140 lbs/sq ft or 685 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,94
      - Longitudinal: 1,64
      - Overall: 1,00
   Adequate machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Good seaboat, rides out heavy weather easily

24t for 4TT x18'' + 4 reloads
100t for additionnal air ventillation
100t for additionnal pumps installation
165t for fire control
100t for Admiral staff
50t for 2x Marconi
90t reserved

[Kaiser Kirk]

Testing a reconstruction with HMS Swiftsure guns 10"/45 Mark VI

Barbarossa, Byzantine Empire BB2 laid down 1896 (Engine 1910)

It is rather interesting.
The hull should be fairly good. Granted, some vessels corroded quickly, but the expected life was 20+ years.
There were advances in ammunition handling, firing rates, and gearing around the turn of the century, so the old 13.5/35 would be like the slow firing guns of the Royal Sovereign class, while a 10" weapon would have a very nice rate of fire and can be kept "on target" much easier - indeed they were considered for Dreadnaught.

A couple cautions come to mind -
A) by this time the problems of mixed heavy calibers in regards to shell spotting is known. So the 10" and the 9.2" are very close, your designers would expect some Fire control issues.  One thing I've toyed with on a similar ship is converting my entire battery to 1 size. Your 4 twin 9.2" mounts could be 4 single 10" if that interested you.
B) at this point, improved fire control is pushing the expected combat ranges further away. I would guess 6-9,000m would be the expected fighting range.  At those ranges 10" guns will not penetrate battleship armor, though they could close in and kill crippled ships at <3000m -  which is viable. 
C) By 1910, there's some scout aircraft and dirigibles. The Romans just bought a bunch of aircraft. A couple token AA guns (if you have any) would make sense. In period you generally found 1-4.
D) While you are converting only part of the power plant to turbines, the "Ship design guidelines" would apply to that portion of the engine (at least).

Springsharp, for a 32,000shp engine in one of my ships *different hull than yours* with 90/10 fuel, puts a 1911 turbine weight at 1440, 1911 CR at 2112, and a combined plant at 1713. 
Meanwhile 16,000shp for a compound is 1,056 and for turbine is 720, for a combined 1,776. 
That means SS is not dividing tonnage 50/50 between the turbines and Compound, it's putting a little more under turbines.
However, the result is still close enough we can use it.
So the Turbines are about half the engine weight and around ~888tons, which means 25% of that tonnage of electric turbogenerators are needed in misc weight.


So I view this as making a hybrid battleship-armored cruiser, very interesting. Your thread has led to my exploring reconstruction alternatives in detail. While I had definitely thought of the possibility of rebuilding my prebuild ships, now I'm looking at the details and cost and what the designs would be.  For roughly 1/2 the cost of a new ship, you get a very decent hybrid.

[Jefgte]

There were advances in ammunition handling, firing rates, and gearing around the turn of the century, so the old 13.5/35 would be like the slow firing guns of the Royal Sovereign class, while a 10" weapon would have a very nice rate of fire and can be kept "on target" much easier - indeed they were considered for Dreadnaught.

13"5/35 mlle 1890 - ROF 0.5 - 523kg/shell=> for 2T2 - 1046kg/mn
10"/45 mlle 1904 - ROF 2 => - 227kg/shell=> for 2T2 - 3632kg/mn

I have calculated the difference before SS  :)
--------
I have calculated also the fire of the "4th division of light Battleships" (Barbarossa class)
With salvoes organised every  8/10sec from the first BB to the fourth BB.
An enemy battleship could be on fire in about 12 to 15 mn by about 1500 10" & 9"2

[Kaiser Kirk]

Very nice upgrade in overall firepower.  The nice thing is that 9/10" can at <3000m still get critical hits as well.  The "saturate with HE" is why some of the Italian (oops that was N6) I mean Parthian battleships have the large 180mm batteries, but those will never get those critical hits the 10" can.
Overall,  I think that's a perfectly reasonable update using the changing technology.

[Jefgte]

...A) by this time the problems of mixed heavy calibers in regards to shell spotting is known. So the 10" and the 9.2" are very close, your designers would expect some Fire control issues.  One thing I've toyed with on a similar ship is converting my entire battery to 1 size. Your 4 twin 9.2" mounts could be 4 single 10" if that interested you...

Testing with:
2T2 & 4T1 10"/45 Mark IV   HMS Swiftsure guns

Barbarossa, Byzantine Empire BB2 laid down 1896 (Engine 1910)

Displacement:
   14 750 t light; 15 542 t standard; 16 580 t normal; 17 410 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (491,00 ft / 480,00 ft) x 79,00 ft x (24,45 / 25,47 ft)
   (149,66 m / 146,30 m) x 24,08 m  x (7,44 / 7,76 m)

Armament:
      4 - 10,00" / 254 mm 45,0 cal guns - 501,00lbs / 227,25kg shells, 130 per gun
     Breech loading guns in turret on barbette mounts, 1910 Model
     2 x Twin mounts on centreline ends, evenly spread
      4 - 10,00" / 254 mm 45,0 cal guns - 501,00lbs / 227,25kg shells, 130 per gun
     Breech loading guns in turret on barbette mounts, 1896 Model
     4 x Single mounts on side ends, evenly spread
      10 - 6,00" / 152 mm 45,0 cal guns - 108,93lbs / 49,41kg shells, 220 per gun
     Quick firing guns in casemate mounts, 1896 Model
     10 x Single mounts on sides, evenly spread
      16 - 3,00" / 76,2 mm 45,0 cal guns - 13,62lbs / 6,18kg shells, 300 per gun
     Quick firing guns in deck mounts, 1896 Model
     16 x Single mounts on side ends, evenly spread
      16 raised mounts
      4 - 0,30" / 7,7 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 2 000 per gun
     Machine guns in deck mounts, 1896 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
      Weight of broadside 5 315 lbs / 2 411 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   11,8" / 300 mm   312,00 ft / 95,10 m   12,00 ft / 3,66 m
   Ends:   4,72" / 120 mm   168,00 ft / 51,21 m   7,00 ft / 2,13 m
   Upper:   5,92" / 150 mm   312,00 ft / 95,10 m   8,00 ft / 2,44 m
     Main Belt covers 100 % of normal length

   - Torpedo Bulkhead - Strengthened structural bulkheads:
      1,50" / 38 mm   312,00 ft / 95,10 m   23,44 ft / 7,14 m
   Beam between torpedo bulkheads 69,00 ft / 21,03 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   13,4" / 340 mm   5,92" / 150 mm      12,6" / 320 mm
   2nd:   12,6" / 320 mm   5,92" / 150 mm      11,8" / 300 mm
   3rd:   4,72" / 120 mm   1,97" / 50 mm            -
   4th:   0,50" / 13 mm         -               -
   5th:   0,50" / 13 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 2,95" / 75 mm
   Forecastle: 1,37" / 35 mm  Quarter deck: 1,37" / 35 mm

   - Conning towers: Forward 11,80" / 300 mm, Aft 5,92" / 150 mm

Machinery:
   Coal and oil fired boilers, reciprocating cruising steam engines and steam turbines
   Direct drive, 4 shafts, 32 000 ihp / 23 872 Kw = 22,09 kts
   Range 6 500nm at 10,00 kts
   Bunker at max displacement = 1 868 tons (90% coal)

Complement:
   729 - 949

Cost:
   £1,271 million / $5,084 million

Distribution of weights at normal displacement:
   Armament: 1 235 tons, 7,4 %
      - Guns: 1 235 tons, 7,4 %
   Armour: 6 365 tons, 38,4 %
      - Belts: 2 811 tons, 17,0 %
      - Torpedo bulkhead: 406 tons, 2,4 %
      - Armament: 1 498 tons, 9,0 %
      - Armour Deck: 1 402 tons, 8,5 %
      - Conning Towers: 248 tons, 1,5 %
   Machinery: 2 251 tons, 13,6 %
   Hull, fittings & equipment: 4 272 tons, 25,8 %
   Fuel, ammunition & stores: 1 828 tons, 11,0 %
   Miscellaneous weights: 629 tons, 3,8 %
      - Hull below water: 24 tons
      - Hull above water: 175 tons
      - On freeboard deck: 240 tons
      - Above deck: 190 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     23 208 lbs / 10 527 Kg = 46,4 x 10,0 " / 254 mm shells or 4,1 torpedoes
   Stability (Unstable if below 1.00): 1,23
   Metacentric height 5,1 ft / 1,6 m
   Roll period: 14,7 seconds
   Steadiness   - As gun platform (Average = 50 %): 62 %
         - Recoil effect (Restricted arc if above 1.00): 0,36
   Seaboat quality  (Average = 1.00): 1,20

Hull form characteristics:
   Hull has low forecastle,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,626 / 0,631
   Length to Beam Ratio: 6,08 : 1
   'Natural speed' for length: 21,91 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 52
   Bow angle (Positive = bow angles forward): -10,00 degrees
   Stern overhang: 1,00 ft / 0,30 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   17,50 %,  19,22 ft / 5,86 m,  16,13 ft / 4,91 m
      - Forward deck:   30,00 %,  16,73 ft / 5,10 m,  16,15 ft / 4,92 m
      - Aft deck:   35,00 %,  16,15 ft / 4,92 m,  16,15 ft / 4,92 m
      - Quarter deck:   17,50 %,  16,15 ft / 4,92 m,  16,15 ft / 4,92 m
      - Average freeboard:      16,45 ft / 5,01 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 81,5 %
      - Above water (accommodation/working, high = better): 120,9 %
   Waterplane Area: 28 413 Square feet or 2 640 Square metres
   Displacement factor (Displacement / loading): 106 %
   Structure weight / hull surface area: 137 lbs/sq ft or 671 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,95
      - Longitudinal: 1,59
      - Overall: 1,00
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Good seaboat, rides out heavy weather easily

24t for 4TT x18'' + 4 reloads
100t for additionnal air ventillation
100t for additionnal pumps installation
165t for fire control
100t for Admiral staff
50t for 2x Marconi
90t reserved

[Jefgte]

2T2 & 4T1 10"/45

This config is interresting because, with this rebuilt, the 4 Barbarossa class deliver 16T2x234 (4 turrets by ships)
These turrets could be installed on new hulls for gunboats or cruisers.
SS give for 4T2 per BB
Guns: 175t
Mounts: 525t
Armour: 388t - (150-65-120)
Magasine: 262t - (600 shells)
=> for 1T2 => 272t

[Jefgte]

Testing light AC with 2T2x234 free from Barbarossa class

Cost 5,45BP & 5,45$

AC6, Byzantine Empire Light Armored Cruiser laid down 1911

Displacement:
   6 000 t light; 6 300 t standard; 7 395 t normal; 8 271 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (491,00 ft / 491,00 ft) x 60,00 ft x (17,06 / 18,60 ft)
   (149,66 m / 149,66 m) x 18,29 m  x (5,20 / 5,67 m)

Armament:
      4 - 9,20" / 234 mm 45,0 cal guns - 392,66lbs / 178,11kg shells, 150 per gun
     Breech loading guns in turret on barbette mounts, 1896 Model
     2 x Twin mounts on centreline ends, evenly spread
      6 - 4,00" / 102 mm 45,0 cal guns - 32,28lbs / 14,64kg shells, 200 per gun
     Quick firing guns in deck mounts, 1911 Model
     6 x Single mounts on sides, evenly spread
      4 - 0,30" / 7,7 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 2 000 per gun
     Machine guns in deck mounts, 1911 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 1 764 lbs / 800 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3,95" / 100 mm   314,00 ft / 95,71 m   9,00 ft / 2,74 m
   Ends:   1,17" / 30 mm   177,00 ft / 53,95 m   8,00 ft / 2,44 m
     Main Belt covers 98 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5,92" / 150 mm   2,55" / 65 mm      4,72" / 120 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 1,17" / 30 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 40 000 shp / 29 840 Kw = 27,07 kts
   Range 8 000nm at 12,00 kts
   Bunker at max displacement = 1 971 tons (90% coal)

Complement:
   398 - 518

Cost:
   £0,614 million / $2,456 million

Distribution of weights at normal displacement:
   Armament: 385 tons, 5,2 %
      - Guns: 385 tons, 5,2 %
   Armour: 1 185 tons, 16,0 %
      - Belts: 531 tons, 7,2 %
      - Armament: 211 tons, 2,9 %
      - Armour Deck: 401 tons, 5,4 %
      - Conning Towers: 42 tons, 0,6 %
   Machinery: 1 768 tons, 23,9 %
   Hull, fittings & equipment: 2 358 tons, 31,9 %
   Fuel, ammunition & stores: 1 395 tons, 18,9 %
   Miscellaneous weights: 304 tons, 4,1 %
      - Hull above water: 30 tons
      - On freeboard deck: 210 tons
      - Above deck: 64 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     8 063 lbs / 3 657 Kg = 20,7 x 9,2 " / 234 mm shells or 1,4 torpedoes
   Stability (Unstable if below 1.00): 1,21
   Metacentric height 3,3 ft / 1,0 m
   Roll period: 13,9 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,37
   Seaboat quality  (Average = 1.00): 1,08

Hull form characteristics:
   Hull has a flush deck,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,515 / 0,528
   Length to Beam Ratio: 8,18 : 1
   'Natural speed' for length: 22,16 kts
   Power going to wave formation at top speed: 55 %
   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 %,  18,75 ft / 5,72 m,  16,75 ft / 5,11 m
      - Forward deck:   30,00 %,  16,75 ft / 5,11 m,  14,75 ft / 4,50 m
      - Aft deck:   30,00 %,  14,75 ft / 4,50 m,  14,75 ft / 4,50 m
      - Quarter deck:   20,00 %,  14,75 ft / 4,50 m,  14,75 ft / 4,50 m
      - Average freeboard:      15,61 ft / 4,76 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 98,2 %
      - Above water (accommodation/working, high = better): 145,2 %
   Waterplane Area: 19 900 Square feet or 1 849 Square metres
   Displacement factor (Displacement / loading): 114 %
   Structure weight / hull surface area: 89 lbs/sq ft or 432 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,87
      - Longitudinal: 1,16
      - 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

36t for 4 TT x 18'' + 4 reloads
39t for top fire control
25t for Marconi
30t for additionnal pumps
30t for additionnal ventilation
144t reserved for troops, materials, mines...

[Jefgte]

Reconstruction of Barbarossa class with 2T2x254 + 4T1x254

	14750t- 2T2x254+4T1x254
		$	BP
15,650 x 0,1 BP			1,565
15,650 x 0,25 $		3,912
new guns	224t	0,224	0,224
new mounts	783t	0,783	0,783
new armour	1347t	1,347	1,347
new engines	956t	0,96	0,96
				Scrap $
old guns	199t			0,0298
old mounts	417t			0,0625
old armour	1166t			0,2
old engines	1394t			0,2
		7,226	4,879	0,4625
	- scrap cost	6,76

6,76$  - 4,88BP

[Jefgte]

An other AC6 with Barbarossa 9"2 turrets & 8x4"72

Light Armored Cruiser, Byzantine Empire Light Armored Cruiser laid down 1911

Displacement:
   6 000 t light; 6 322 t standard; 7 419 t normal; 8 296 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (491,00 ft / 491,00 ft) x 60,00 ft x (17,11 / 18,66 ft)
   (149,66 m / 149,66 m) x 18,29 m  x (5,22 / 5,69 m)

Armament:
      4 - 9,20" / 234 mm 45,0 cal guns - 392,67lbs / 178,11kg shells, 150 per gun
     Breech loading guns in turret on barbette mounts, 1896 Model
     2 x Twin mounts on centreline ends, evenly spread
      8 - 4,72" / 120 mm 45,0 cal guns - 53,02lbs / 24,05kg shells, 180 per gun
     Quick firing guns in deck mounts, 1911 Model
     8 x Single mounts on sides, evenly spread
      4 - 0,30" / 7,7 mm 90,0 cal guns - 0,02lbs / 0,01kg shells, 2 000 per gun
     Machine guns in deck mounts, 1911 Model
     4 x Single mounts on sides, evenly spread
      Weight of broadside 1 995 lbs / 905 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   3,95" / 100 mm   318,00 ft / 96,93 m   9,00 ft / 2,74 m
   Ends:   1,17" / 30 mm   173,00 ft / 52,73 m   8,00 ft / 2,44 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5,92" / 150 mm   2,55" / 65 mm      4,72" / 120 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 1,17" / 30 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 40 000 shp / 29 840 Kw = 27,06 kts
   Range 8 000nm at 12,00 kts
   Bunker at max displacement = 1 974 tons (90% coal)

Complement:
   399 - 519

Cost:
   £0,625 million / $2,500 million

Distribution of weights at normal displacement:
   Armament: 424 tons, 5,7 %
      - Guns: 424 tons, 5,7 %
   Armour: 1 189 tons, 16,0 %
      - Belts: 533 tons, 7,2 %
      - Armament: 213 tons, 2,9 %
      - Armour Deck: 401 tons, 5,4 %
      - Conning Towers: 42 tons, 0,6 %
   Machinery: 1 768 tons, 23,8 %
   Hull, fittings & equipment: 2 355 tons, 31,7 %
   Fuel, ammunition & stores: 1 419 tons, 19,1 %
   Miscellaneous weights: 263 tons, 3,5 %
      - Hull above water: 30 tons
      - On freeboard deck: 166 tons
      - Above deck: 67 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     7 996 lbs / 3 627 Kg = 20,5 x 9,2 " / 234 mm shells or 1,4 torpedoes
   Stability (Unstable if below 1.00): 1,22
   Metacentric height 3,3 ft / 1,0 m
   Roll period: 13,8 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,40
   Seaboat quality  (Average = 1.00): 1,08

Hull form characteristics:
   Hull has rise aft of midbreak,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,515 / 0,528
   Length to Beam Ratio: 8,18 : 1
   'Natural speed' for length: 22,16 kts
   Power going to wave formation at top speed: 55 %
   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 %,  18,70 ft / 5,70 m,  16,70 ft / 5,09 m
      - Forward deck:   30,00 %,  16,70 ft / 5,09 m,  14,70 ft / 4,48 m
      - Aft deck:   30,00 %,  14,75 ft / 4,50 m,  14,70 ft / 4,48 m
      - Quarter deck:   20,00 %,  14,70 ft / 4,48 m,  14,70 ft / 4,48 m
      - Average freeboard:      15,57 ft / 4,74 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 99,4 %
      - Above water (accommodation/working, high = better): 144,5 %
   Waterplane Area: 19 900 Square feet or 1 849 Square metres
   Displacement factor (Displacement / loading): 113 %
   Structure weight / hull surface area: 89 lbs/sq ft or 437 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,87
      - Longitudinal: 1,17
      - 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

36t for 4 TT x 18'' + 4 reloads
42t for top fire control
25t for Marconi
30t for additionnal pumps
30t for additionnal ventilation
100t reserved for troops, materials, mines...

[Kaiser Kirk]

Interesting,
Innovative,
but I don't think it's terribly practical.

In 1911, the current fire control allows reasonable accuracy out to 10,000m.   I'm guessing that means about 10% hits, rapidly falling off after that. Promises of longer ranges soon. 
Meanwhile AP shells are being researched.

You have mighty 9.2" guns !  You can sink the Parthian/Roman ships at all combat ranges !
Except the further out, the more dependent on rate of fire to generate the shell splashes needed to range on - hence why I suggested unifying Barbarossa's armament. Makes it much more effective.

Plus, if the goal is to save by reusing the 9.2" turrets, you have to factor in why they are obsolete.

The 1904-ish "continuous aim" system, and following systems, made keeping your barrels on target as the ship rolled important.
Prior to that, i.e. 1896, you waited for the roll to hit the right point. That doesn't work for higher ROF and good fire control.

The gearing for this , and the power to do it, really only worked on smaller guns - I read 9.4" and less, but from the navies adopting 10", and the concept of arming Dreadnaught with 10", I'm guessing 10" was the practical upper limit.   The 1896 turrets you have won't have that gearing or rate of fire.

So you'd have guns which fire slower than modern ones, that can't maintain target lock, and so can't take advantage of their longer range penetration. IMHO

Based on the Falklands fight, "choosing your range" is hard to do, even when you have a Invincible vs. [/i]Scharnhorst[/i] level advantage, that 100mm belt is questionable at the shorter ranges, especially after the new AP shells. 

[Jefgte]

...Plus, if the goal is to save by reusing the 9.2" turrets, you have to factor in why they are obsolete...

9.2 turrets are not obsolete but, available with the Barbarossa rebuilt with 10" turrets.
-------------
Reuse 9"2 mlle 1896 turrets is an economical choice to have more cruisers.
9"2 Mark X
Range 14170m @ 15° with 172kg HE or AP
Battle ROF: 2 (max 3 during short time)
Muzzle Velocity 806m/s
Vertical Armor Penetration: 135mm @ 8230m

80 shells fire in 10 mn =>13792kg
I think correct for a 1911-27kts-6000t cruiser
Enemy cruiser didn't like to receive 172kg shells !!!