Rebuilt Niepos & Drasty, Zwiazek Wilno Baltic BB laid down 1897

Started by Jefgte, March 22, 2021, 05:43:42 PM

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Jefgte

March 22, 2021, 05:43:42 PM Last Edit: March 22, 2021, 05:54:23 PM by Jefgte
Byzantium buy these ships to strengthen its colonial fleet. The reconstruction will be similar to the Barbarossa class.
They are a bit smaller but will have the same weaponry, speed and protection.
They will therefore be reclassified BB1 like the Barbarossa.

Original built

Niepos, Zwiazek- Wilno Baltic BB laid down 1897

Displacement:
   13 814 t light; 14 472 t standard; 15 347 t normal; 16 047 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (426,51 ft / 426,51 ft) x 78,74 ft x (24,61 / 25,56 ft)
   (130,00 m / 130,00 m) x 24,00 m  x (7,50 / 7,79 m)

Armament:
      4 - 11,02" / 280 mm 40,0 cal guns - 641,94lbs / 291,18kg shells, 90 per gun
     Breech loading guns in turret on barbette mounts, 1897 Model
     2 x Twin mounts on centreline ends, evenly spread
      8 - 7,87" / 200 mm 40,0 cal guns - 233,93lbs / 106,11kg shells, 150 per gun
     Breech loading guns in turret on barbette mounts, 1897 Model
     4 x Twin mounts on sides, evenly spread
      12 - 5,12" / 130 mm 40,0 cal guns - 64,24lbs / 29,14kg shells, 150 per gun
     Breech loading guns in casemate mounts, 1897 Model
     12 x Single mounts on sides, evenly spread
      12 hull mounts in casemates- Limited use in heavy seas
      8 - 1,97" / 50,0 mm 40,0 cal guns - 3,66lbs / 1,66kg shells, 150 per gun
     Quick firing guns in deck mounts, 1897 Model
     8 x Single mounts on sides, evenly spread
      8 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, 1897 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
      Weight of broadside 5 239 lbs / 2 377 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   11,8" / 300 mm   277,23 ft / 84,50 m   11,81 ft / 3,60 m
   Ends:   3,94" / 100 mm   149,25 ft / 45,49 m   11,81 ft / 3,60 m
   Upper:   5,91" / 150 mm   277,23 ft / 84,50 m   11,81 ft / 3,60 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11,8" / 300 mm   7,87" / 200 mm      11,0" / 280 mm
   2nd:   7,87" / 200 mm   0,59" / 15 mm      7,87" / 200 mm
   3rd:   1,97" / 50 mm   0,79" / 20 mm      3,94" / 100 mm
   4th:   0,79" / 20 mm   0,39" / 10 mm            -
   5th:   0,50" / 13 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 2,36" / 60 mm
   Forecastle: 1,18" / 30 mm  Quarter deck: 1,18" / 30 mm

   - Conning towers: Forward 11,81" / 300 mm, Aft 7,87" / 200 mm

Machinery:
   Coal fired boilers, complex reciprocating steam engines,
   Direct drive, 2 shafts, 14 745 ihp / 11 000 Kw = 18,06 kts
   Range 4 500nm at 10,00 kts
   Bunker at max displacement = 1 575 tons (100% coal)

Complement:
   689 - 896

Cost:
   £1,225 million / $4,901 million

Distribution of weights at normal displacement:
   Armament: 898 tons, 5,9 %
      - Guns: 898 tons, 5,9 %
   Armour: 5 498 tons, 35,8 %
      - Belts: 2 875 tons, 18,7 %
      - Armament: 1 335 tons, 8,7 %
      - Armour Deck: 1 027 tons, 6,7 %
      - Conning Towers: 262 tons, 1,7 %
   Machinery: 2 417 tons, 15,8 %
   Hull, fittings & equipment: 4 700 tons, 30,6 %
   Fuel, ammunition & stores: 1 533 tons, 10,0 %
   Miscellaneous weights: 300 tons, 2,0 %
      - Hull below water: 50 tons
      - On freeboard deck: 250 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     22 745 lbs / 10 317 Kg = 34,0 x 11,0 " / 280 mm shells or 2,7 torpedoes
   Stability (Unstable if below 1.00): 1,36
   Metacentric height 6,0 ft / 1,8 m
   Roll period: 13,5 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,43
   Seaboat quality  (Average = 1.00): 1,93

Hull form characteristics:
   Hull has a flush deck,
     a ram bow and a cruiser stern
   Block coefficient (normal/deep): 0,650 / 0,654
   Length to Beam Ratio: 5,42 : 1
   'Natural speed' for length: 20,65 kts
   Power going to wave formation at top speed: 47 %
   Trim (Max stability = 0, Max steadiness = 100): 37
   Bow angle (Positive = bow angles forward): -10,00 degrees
   Stern overhang: -3,28 ft / -1,00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20,00 %,  19,69 ft / 6,00 m,  19,69 ft / 6,00 m
      - Forward deck:   30,00 %,  19,69 ft / 6,00 m,  19,69 ft / 6,00 m
      - Aft deck:   35,00 %,  19,69 ft / 6,00 m,  19,69 ft / 6,00 m
      - Quarter deck:   15,00 %,  19,69 ft / 6,00 m,  19,69 ft / 6,00 m
      - Average freeboard:      19,69 ft / 6,00 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 76,5 %
      - Above water (accommodation/working, high = better): 140,0 %
   Waterplane Area: 25 727 Square feet or 2 390 Square metres
   Displacement factor (Displacement / loading): 106 %
   Structure weight / hull surface area: 139 lbs/sq ft or 681 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,92
      - Longitudinal: 2,45
      - Overall: 1,02
   Excellent machinery, storage, compartmentation space
   Excellent accommodation and workspace room
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

50t for 4TT x18'' +  reloads
50t for Admiral staff
25t for Marconi
175t reserved
----------------------
The rebuilt:

Niepos, Byzantine Empire Colonial BB laid down 1897 (Engine 1916)

Displacement:
   13 460 t light; 14 114 t standard; 15 143 t normal; 15 966 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
   (426,51 ft / 426,51 ft) x 78,74 ft x (24,28 / 25,40 ft)
   (130,00 m / 130,00 m) x 24,00 m  x (7,40 / 7,74 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, 1910 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, 1910 Model
     4 x Twin mounts on sides, evenly spread
      12 - 5,98" / 152 mm 45,0 cal guns - 108,07lbs / 49,02kg shells, 170 per gun
     Quick firing guns in deck and hoist mounts, 1910 Model
     12 x Single mounts on sides, evenly spread
      4 - 3,00" / 76,2 mm 45,0 cal guns - 13,62lbs / 6,18kg shells, 150 per gun
     Anti-air guns in deck mounts, 1910 Model
     4 x Single mounts on sides, evenly spread
      4 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, 1897 Model
     4 x Single mounts on side ends, evenly spread
      4 raised mounts
      Weight of broadside 5 385 lbs / 2 443 kg

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   11,8" / 300 mm   277,23 ft / 84,50 m   11,81 ft / 3,60 m
   Ends:   3,94" / 100 mm   149,25 ft / 45,49 m   11,81 ft / 3,60 m
   Upper:   5,91" / 150 mm   277,23 ft / 84,50 m   11,81 ft / 3,60 m
     Main Belt covers 100 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11,8" / 300 mm   7,87" / 200 mm      11,0" / 280 mm
   2nd:   9,06" / 230 mm   1,97" / 50 mm      7,87" / 200 mm
   3rd:   1,97" / 50 mm   0,79" / 20 mm      3,94" / 100 mm
   4th:   0,79" / 20 mm   0,39" / 10 mm            -
   5th:   0,50" / 13 mm         -               -

   - Armoured deck - single deck:
   For and Aft decks: 2,36" / 60 mm
   Forecastle: 1,18" / 30 mm  Quarter deck: 1,18" / 30 mm

   - Conning towers: Forward 11,81" / 300 mm, Aft 7,87" / 200 mm

Machinery:
   Coal and oil fired boilers, reciprocating cruising steam engines and steam turbines
   Direct drive, 2 shafts, 31 755 ihp / 23 689 Kw = 21,95 kts
   Range 7 500nm at 10,00 kts
   Bunker at max displacement = 1 852 tons (90% coal)

Complement:
   682 - 887

Cost:
   £1,259 million / $5,036 million

Distribution of weights at normal displacement:
   Armament: 1 251 tons, 8,3 %
      - Guns: 1 251 tons, 8,3 %
   Armour: 5 382 tons, 35,5 %
      - Belts: 2 875 tons, 19,0 %
      - Armament: 1 221 tons, 8,1 %
      - Armour Deck: 1 027 tons, 6,8 %
      - Conning Towers: 260 tons, 1,7 %
   Machinery: 2 038 tons, 13,5 %
   Hull, fittings & equipment: 4 514 tons, 29,8 %
   Fuel, ammunition & stores: 1 683 tons, 11,1 %
   Miscellaneous weights: 275 tons, 1,8 %
      - Hull below water: 50 tons
      - On freeboard deck: 75 tons
      - Above deck: 150 tons

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     21 367 lbs / 9 692 Kg = 42,7 x 10,0 " / 254 mm shells or 2,7 torpedoes
   Stability (Unstable if below 1.00): 1,15
   Metacentric height 4,5 ft / 1,4 m
   Roll period: 15,6 seconds
   Steadiness   - As gun platform (Average = 50 %): 72 %
         - Recoil effect (Restricted arc if above 1.00): 0,57
   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): 0,650 / 0,655
   Length to Beam Ratio: 5,42 : 1
   'Natural speed' for length: 20,65 kts
   Power going to wave formation at top speed: 58 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   Bow angle (Positive = bow angles forward): -10,00 degrees
   Stern overhang: -3,28 ft / -1,00 m
   Freeboard (% = length of deck as a percentage of waterline length):
            Fore end,    Aft end
      - Forecastle:   20,00 %,  20,01 ft / 6,10 m,  20,01 ft / 6,10 m
      - Forward deck:   30,00 %,  20,01 ft / 6,10 m,  20,01 ft / 6,10 m
      - Aft deck:   35,00 %,  20,01 ft / 6,10 m,  20,01 ft / 6,10 m
      - Quarter deck:   15,00 %,  20,01 ft / 6,10 m,  20,01 ft / 6,10 m
      - Average freeboard:      20,01 ft / 6,10 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 74,8 %
      - Above water (accommodation/working, high = better): 143,8 %
   Waterplane Area: 25 727 Square feet or 2 390 Square metres
   Displacement factor (Displacement / loading): 104 %
   Structure weight / hull surface area: 141 lbs/sq ft or 687 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,91
      - Longitudinal: 2,47
      - Overall: 1,01
   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

125t for 1914 Top Fire Control
25t for Marconi
75t for Additional air ventilation
50t for 4TT x 18" + 3 reloads
50t reserved


13814t =>13460t- 2T2x254+4T1x254
$BP
13,814 x 0,1 BP1,3814
13,814x 0,25 $3,453
new guns301t0,3010,301
new mounts950t0,950,95
new armour1221t1,2211,221
new engines1298t1,2981,298
7,2235,1514
old guns260t0,0390,039
old mounts637t0,0950,095
old armour1335t0,20,2
old engines2417t0,3620,362
0,6960,696
- scrap cost7,223 - 0,696   =>6,527 $
- scrap cost5,1514 - 0,696   =>4,4554 BP
$BP
"You French are fighting for money, while we English are fighting for honor!"
"Everyone is fighting for what they miss. "
Surcouf

The Rock Doctor

#1
March 22, 2021, 06:33:58 PM
Interesting redo.  I contemplating doing something similar with my own 25 cm gun but it didn't appeal to me.
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