BC for Peru

[Jefgte]

LD 1915 - Limited to 16000t & in a dock type 2 (170m),
I am testing different SS for a BC to screen 20-21kts BBs.

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16000T-4T2x305-APQY, Peru BC laid down 1915

Displacement:
   16 000 t light; 16 904 t standard; 18 112 t normal; 19 078 t full load

Dimensions: Length overall / water x beam x draught
   554.46 ft / 554.46 ft x 78.74 ft x 24.40 ft (normal load)
   169.00 m / 169.00 m x 24.00 m  x 7.44 m

Armament:
      4 - 12.01" / 305 mm guns (2x2 guns), 865.70lbs / 392.67kg shells, 1915 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, evenly spread
      4 - 12.01" / 305 mm guns (2x2 guns), 865.70lbs / 392.67kg shells, 1915 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, all amidships
      12 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1915 Model
     Breech loading guns in casemate mounts
     on side, evenly spread
      8 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1915 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1915 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 7 666 lbs / 3 477 kg
   Shells per gun, main battery: 120
   4 - 18.0" / 457.2 mm submerged torpedo tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   9.84" / 250 mm   367.45 ft / 112.00 m   12.73 ft / 3.88 m
   Ends:   4.02" / 102 mm   144.36 ft / 44.00 m   10.17 ft / 3.10 m
     42.65 ft / 13.00 m Unarmoured ends
   Upper:   4.02" / 102 mm   367.45 ft / 112.00 m   8.01 ft / 2.44 m
     Main Belt covers 102 % of normal length

   - Torpedo Bulkhead:
      1.77" / 45 mm   367.45 ft / 112.00 m   24.18 ft / 7.37 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11.0" / 280 mm   3.15" / 80 mm      9.84" / 250 mm
   2nd:   11.0" / 280 mm   3.15" / 80 mm      9.84" / 250 mm
   3rd:   1.57" / 40 mm         -               -
   4th:   0.79" / 20 mm         -               -
   5th:   0.50" / 13 mm         -               -

   - Armour deck: 2.36" / 60 mm, Conning tower: 11.02" / 280 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 44 000 shp / 32 824 Kw = 24.11 kts
   Range 8 000nm at 12.00 kts
   Bunker at max displacement = 2 173 tons

Complement:
   779 - 1 014

Cost:
   £2.325 million / $9.299 million

Distribution of weights at normal displacement:
   Armament: 958 tons, 5.3 %
   Armour: 6 169 tons, 34.1 %
      - Belts: 2 713 tons, 15.0 %
      - Torpedo bulkhead: 582 tons, 3.2 %
      - Armament: 1 321 tons, 7.3 %
      - Armour Deck: 1 389 tons, 7.7 %
      - Conning Tower: 164 tons, 0.9 %
   Machinery: 1 667 tons, 9.2 %
   Hull, fittings & equipment: 6 787 tons, 37.5 %
   Fuel, ammunition & stores: 2 111 tons, 11.7 %
   Miscellaneous weights: 420 tons, 2.3 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     23 071 lbs / 10 465 Kg = 26.6 x 12.0 " / 305 mm shells or 4.0 torpedoes
   Stability (Unstable if below 1.00): 1.07
   Metacentric height 4.0 ft / 1.2 m
   Roll period: 16.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.68
   Seaboat quality  (Average = 1.00): 1.21

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.595
   Length to Beam Ratio: 7.04 : 1
   'Natural speed' for length: 23.55 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      26.57 ft / 8.10 m
      - Forecastle (18 %):   20.01 ft / 6.10 m
      - Mid (40 %):      16.73 ft / 5.10 m
      - Quarterdeck (18 %):   16.73 ft / 5.10 m
      - Stern:      16.73 ft / 5.10 m
      - Average freeboard:   18.16 ft / 5.53 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 101.4 %
      - Above water (accommodation/working, high = better): 134.4 %
   Waterplane Area: 31 782 Square feet or 2 953 Square metres
   Displacement factor (Displacement / loading): 103 %
   Structure weight / hull surface area: 151 lbs/sq ft or 736 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.47
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[Jefgte]

16000T-3T2x340-AQY, Peru BC laid down 1915

Displacement:
   16 000 t light; 16 868 t standard; 18 074 t normal; 19 039 t full load

Dimensions: Length overall / water x beam x draught
   554.46 ft / 554.46 ft x 78.74 ft x 24.35 ft (normal load)
   169.00 m / 169.00 m x 24.00 m  x 7.42 m

Armament:
      4 - 13.39" / 340 mm guns (2x2 guns), 1 199.24lbs / 543.97kg shells, 1915 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, evenly spread
      2 - 13.39" / 340 mm guns (1x2 guns), 1 199.24lbs / 543.97kg shells, 1915 Model
     Breech loading guns in a turret (on a barbette)
     on centreline amidships
      12 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.92kg shells, 1915 Model
     Breech loading guns in casemate mounts
     on side, evenly spread
      8 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1915 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1915 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 7 936 lbs / 3 600 kg
   Shells per gun, main battery: 110
   4 - 18.0" / 457.2 mm submerged torpedo tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   9.84" / 250 mm   374.02 ft / 114.00 m   12.73 ft / 3.88 m
   Ends:   4.02" / 102 mm   144.36 ft / 44.00 m   10.17 ft / 3.10 m
     36.09 ft / 11.00 m Unarmoured ends
   Upper:   4.02" / 102 mm   374.02 ft / 114.00 m   8.01 ft / 2.44 m
     Main Belt covers 104 % of normal length

   - Torpedo Bulkhead:
      1.77" / 45 mm   374.02 ft / 114.00 m   24.21 ft / 7.38 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11.0" / 280 mm   3.15" / 80 mm      9.84" / 250 mm
   2nd:   11.0" / 280 mm   3.15" / 80 mm      9.84" / 250 mm
   3rd:   1.57" / 40 mm         -               -
   4th:   0.79" / 20 mm         -               -
   5th:   0.50" / 13 mm         -               -

   - Armour deck: 2.36" / 60 mm, Conning tower: 11.02" / 280 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 44 000 shp / 32 824 Kw = 24.11 kts
   Range 8 000nm at 12.00 kts
   Bunker at max displacement = 2 171 tons

Complement:
   779 - 1 013

Cost:
   £2.366 million / $9.464 million

Distribution of weights at normal displacement:
   Armament: 992 tons, 5.5 %
   Armour: 6 035 tons, 33.4 %
      - Belts: 2 748 tons, 15.2 %
      - Torpedo bulkhead: 594 tons, 3.3 %
      - Armament: 1 141 tons, 6.3 %
      - Armour Deck: 1 389 tons, 7.7 %
      - Conning Tower: 164 tons, 0.9 %
   Machinery: 1 667 tons, 9.2 %
   Hull, fittings & equipment: 6 926 tons, 38.3 %
   Fuel, ammunition & stores: 2 074 tons, 11.5 %
   Miscellaneous weights: 380 tons, 2.1 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     22 819 lbs / 10 351 Kg = 19.0 x 13.4 " / 340 mm shells or 3.9 torpedoes
   Stability (Unstable if below 1.00): 1.08
   Metacentric height 4.1 ft / 1.2 m
   Roll period: 16.4 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.70
   Seaboat quality  (Average = 1.00): 1.22

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.595
   Length to Beam Ratio: 7.04 : 1
   'Natural speed' for length: 23.55 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      26.57 ft / 8.10 m
      - Forecastle (18 %):   20.01 ft / 6.10 m
      - Mid (40 %):      16.73 ft / 5.10 m
      - Quarterdeck (18 %):   16.73 ft / 5.10 m
      - Stern:      16.73 ft / 5.10 m
      - Average freeboard:   18.16 ft / 5.53 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 102.8 %
      - Above water (accommodation/working, high = better): 134.4 %
   Waterplane Area: 31 782 Square feet or 2 953 Square metres
   Displacement factor (Displacement / loading): 102 %
   Structure weight / hull surface area: 154 lbs/sq ft or 751 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.52
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[Jefgte]

 A powerfull artillery but armour decrease & speed too...

16000T-3T3x340-AQY, Peru BC laid down 1915

Displacement:
   15 999 t light; 17 015 t standard; 18 226 t normal; 19 194 t full load

Dimensions: Length overall / water x beam x draught
   554.46 ft / 554.46 ft x 85.30 ft x 24.30 ft (normal load)
   169.00 m / 169.00 m x 26.00 m  x 7.41 m

Armament:
      6 - 13.39" / 340 mm guns (2x3 guns), 1 200.00lbs / 544.31kg shells, 1915 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, evenly spread
      3 - 13.39" / 340 mm guns (1x3 guns), 1 200.00lbs / 544.31kg shells, 1915 Model
     Breech loading guns in a turret (on a barbette)
     on centreline amidships
      8 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.91kg shells, 1915 Model
     Breech loading guns in casemate mounts
     on side, evenly spread
      8 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1915 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1915 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 11 330 lbs / 5 139 kg
   Shells per gun, main battery: 100
   4 - 18.0" / 457.2 mm submerged torpedo tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   6.30" / 160 mm   400.26 ft / 122.00 m   12.73 ft / 3.88 m
   Ends:   3.00" / 76 mm   144.36 ft / 44.00 m   10.17 ft / 3.10 m
     9.84 ft / 3.00 m Unarmoured ends
   Upper:   1.57" / 40 mm   400.26 ft / 122.00 m   8.01 ft / 2.44 m
     Main Belt covers 111 % of normal length

   - Torpedo Bulkhead:
      1.57" / 40 mm   400.26 ft / 122.00 m   24.15 ft / 7.36 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   9.45" / 240 mm   3.15" / 80 mm      7.87" / 200 mm
   2nd:   9.45" / 240 mm   3.15" / 80 mm      7.87" / 200 mm
   3rd:   1.57" / 40 mm         -               -
   4th:   0.79" / 20 mm         -               -
   5th:   0.50" / 13 mm         -               -

   - Armour deck: 1.97" / 50 mm, Conning tower: 9.45" / 240 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 32 510 shp / 24 252 Kw = 22.30 kts
   Range 8 000nm at 12.00 kts
   Bunker at max displacement = 2 179 tons

Complement:
   783 - 1 019

Cost:
   £2.795 million / $11.179 million

Distribution of weights at normal displacement:
   Armament: 1 415 tons, 7.8 %
   Armour: 4 792 tons, 26.3 %
      - Belts: 1 743 tons, 9.6 %
      - Torpedo bulkhead: 563 tons, 3.1 %
      - Armament: 1 137 tons, 6.2 %
      - Armour Deck: 1 208 tons, 6.6 %
      - Conning Tower: 141 tons, 0.8 %
   Machinery: 1 231 tons, 6.8 %
   Hull, fittings & equipment: 8 211 tons, 45.1 %
   Fuel, ammunition & stores: 2 226 tons, 12.2 %
   Miscellaneous weights: 350 tons, 1.9 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     21 072 lbs / 9 558 Kg = 17.6 x 13.4 " / 340 mm shells or 3.6 torpedoes
   Stability (Unstable if below 1.00): 1.14
   Metacentric height 5.0 ft / 1.5 m
   Roll period: 16.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.71
   Seaboat quality  (Average = 1.00): 1.31

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.555
   Length to Beam Ratio: 6.50 : 1
   'Natural speed' for length: 23.55 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 54
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      25.59 ft / 7.80 m
      - Forecastle (17 %):   19.03 ft / 5.80 m
      - Mid (40 %):      15.75 ft / 4.80 m
      - Quarterdeck (17 %):   15.75 ft / 4.80 m
      - Stern:      15.75 ft / 4.80 m
      - Average freeboard:   17.13 ft / 5.22 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 111.0 %
      - Above water (accommodation/working, high = better): 131.7 %
   Waterplane Area: 33 163 Square feet or 3 081 Square metres
   Displacement factor (Displacement / loading): 96 %
   Structure weight / hull surface area: 182 lbs/sq ft or 886 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.61
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[maddox]

Squeezed out a bit more speed and range for the same cost, with elder engines and almost the same resilience.

3*3 16Ktons, Peruvian  BC laid down 1915 (Engine 1912)

Displacement:
   16.006 t light; 17.019 t standard; 18.493 t normal; 19.671 t full load

Dimensions: Length overall / water x beam x draught
   556,10 ft / 556,10 ft x 85,30 ft x 24,28 ft (normal load)
   169,50 m / 169,50 m x 26,00 m  x 7,40 m

Armament:
      9 - 13,39" / 340 mm guns (3x3 guns), 1.212,54lbs / 550,00kg shells, 1915 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, evenly spread
     Aft Main mounts separated by engine room
      8 - 4,72" / 120 mm guns in single mounts, 52,91lbs / 24,00kg shells, 1915 Model
     Breech loading guns in casemate mounts
     on side, all amidships
      8 - 3,00" / 76,2 mm guns in single mounts, 14,33lbs / 6,50kg shells, 1915 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
      4 - 0,50" / 12,7 mm guns in single mounts, 0,06lbs / 0,03kg shells, 1915 Model
     Machine guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 11.451 lbs / 5.194 kg
   Shells per gun, main battery: 100
   4 - 18,0" / 457,2 mm submerged torpedo tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   8,00" / 203 mm   390,00 ft / 118,87 m   11,00 ft / 3,35 m
   Ends:   2,00" / 51 mm   164,46 ft / 50,13 m   11,00 ft / 3,35 m
     1,64 ft / 0,50 m Unarmoured ends
   Upper:   2,00" / 51 mm   361,47 ft / 110,18 m   8,00 ft / 2,44 m
     Main Belt covers 108% of normal length
     Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
      1,10" / 28 mm   390,00 ft / 118,87 m   24,00 ft / 7,32 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   8,00" / 203 mm   3,00" / 76 mm      8,00" / 203 mm
   2nd:   1,25" / 32 mm         -               -
   3rd:   0,75" / 19 mm         -               -
   4th:   0,50" / 13 mm         -               -

   - Armour deck: 1,50" / 38 mm, Conning tower: 8,00" / 203 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 47.379 shp / 35.345 Kw = 24,50 kts
   Range 8.600nm at 12,00 kts
   Bunker at max displacement = 2.652 tons

Complement:
   792 - 1.030

Cost:
   £2,929 million / $11,716 million

Distribution of weights at normal displacement:
   Armament: 1.415 tons, 7,7%
   Armour: 4.436 tons, 24,0%
      - Belts: 1.855 tons, 10,0%
      - Torpedo bulkhead: 381 tons, 2,1%
      - Armament: 1.150 tons, 6,2%
      - Armour Deck: 929 tons, 5,0%
      - Conning Tower: 121 tons, 0,7%
   Machinery: 1.889 tons, 10,2%
   Hull, fittings & equipment: 7.916 tons, 42,8%
   Fuel, ammunition & stores: 2.486 tons, 13,4%
   Miscellaneous weights: 350 tons, 1,9%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     19.908 lbs / 9.030 Kg = 16,6 x 13,4 " / 340 mm shells or 3,1 torpedoes
   Stability (Unstable if below 1.00): 1,18
   Metacentric height 5,4 ft / 1,6 m
   Roll period: 15,5 seconds
   Steadiness   - As gun platform (Average = 50 %): 55 %
         - Recoil effect (Restricted arc if above 1.00): 0,66
   Seaboat quality  (Average = 1.00): 1,11

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,562
   Length to Beam Ratio: 6,52 : 1
   'Natural speed' for length: 23,58 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      26,25 ft / 8,00 m
      - Forecastle (20%):   18,04 ft / 5,50 m
      - Mid (50%):      18,04 ft / 5,50 m
      - Quarterdeck (15%):   15,75 ft / 4,80 m
      - Stern:      15,75 ft / 4,80 m
      - Average freeboard:   17,95 ft / 5,47 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 124,7%
      - Above water (accommodation/working, high = better): 140,3%
   Waterplane Area: 33.480 Square feet or 3.110 Square metres
   Displacement factor (Displacement / loading): 93%
   Structure weight / hull surface area: 172 lbs/sq ft or 840 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,95
      - Longitudinal: 1,54
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent

[Jefgte]

More speed...

16000T-2T3x340-AY, Peru BC laid down 1915

Displacement:
   16 000 t light; 16 903 t standard; 18 109 t normal; 19 074 t full load

Dimensions: Length overall / water x beam x draught
   554.46 ft / 554.46 ft x 85.30 ft x 24.15 ft (normal load)
   169.00 m / 169.00 m x 26.00 m  x 7.36 m

Armament:
      6 - 13.39" / 340 mm guns (2x3 guns), 1 200.00lbs / 544.31kg shells, 1915 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, evenly spread
      12 - 4.72" / 120 mm guns in single mounts, 52.72lbs / 23.92kg shells, 1915 Model
     Breech loading guns in casemate mounts
     on centreline, all amidships
      8 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1915 Model
     Breech loading guns in casemate mounts
     on side, evenly spread, all raised mounts
      4 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1915 Model
     Quick firing guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 7 941 lbs / 3 602 kg
   Shells per gun, main battery: 120
   4 - 18.0" / 457.2 mm submerged torpedo tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   9.84" / 250 mm   387.14 ft / 118.00 m   12.73 ft / 3.88 m
   Ends:   3.00" / 76 mm   144.36 ft / 44.00 m   10.17 ft / 3.10 m
     22.97 ft / 7.00 m Unarmoured ends
   Upper:   1.57" / 40 mm   387.14 ft / 118.00 m   8.01 ft / 2.44 m
     Main Belt covers 107 % of normal length

   - Torpedo Bulkhead:
      1.57" / 40 mm   387.14 ft / 118.00 m   23.88 ft / 7.28 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11.0" / 280 mm   3.15" / 80 mm      9.84" / 250 mm
   2nd:   1.57" / 40 mm   3.15" / 80 mm      7.87" / 200 mm
   3rd:   0.79" / 20 mm         -               -
   4th:   0.50" / 13 mm         -               -

   - Armour deck: 1.97" / 50 mm, Conning tower: 9.84" / 250 mm

Machinery:
   Oil fired boilers, steam turbines,
   Geared drive, 4 shafts, 52 500 shp / 39 165 Kw = 25.23 kts
   Range 8 000nm at 12.00 kts
   Bunker at max displacement = 2 171 tons

Complement:
   779 - 1 014

Cost:
   £2.432 million / $9.726 million

Distribution of weights at normal displacement:
   Armament: 992 tons, 5.5 %
   Armour: 5 373 tons, 29.7 %
      - Belts: 2 450 tons, 13.5 %
      - Torpedo bulkhead: 539 tons, 3.0 %
      - Armament: 1 029 tons, 5.7 %
      - Armour Deck: 1 208 tons, 6.7 %
      - Conning Tower: 146 tons, 0.8 %
   Machinery: 1 989 tons, 11.0 %
   Hull, fittings & equipment: 7 297 tons, 40.3 %
   Fuel, ammunition & stores: 2 109 tons, 11.6 %
   Miscellaneous weights: 350 tons, 1.9 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     23 094 lbs / 10 475 Kg = 19.3 x 13.4 " / 340 mm shells or 3.9 torpedoes
   Stability (Unstable if below 1.00): 1.13
   Metacentric height 4.9 ft / 1.5 m
   Roll period: 16.1 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0.57
   Seaboat quality  (Average = 1.00): 1.19

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.555
   Length to Beam Ratio: 6.50 : 1
   'Natural speed' for length: 23.55 kts
   Power going to wave formation at top speed: 53 %
   Trim (Max stability = 0, Max steadiness = 100): 60
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      27.89 ft / 8.50 m
      - Forecastle (17 %):   21.33 ft / 6.50 m
      - Mid (40 %):      18.04 ft / 5.50 m
      - Quarterdeck (17 %):   18.04 ft / 5.50 m
      - Stern:      18.04 ft / 5.50 m
      - Average freeboard:   19.43 ft / 5.92 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 107.4 %
      - Above water (accommodation/working, high = better): 151.0 %
   Waterplane Area: 33 163 Square feet or 3 081 Square metres
   Displacement factor (Displacement / loading): 103 %
   Structure weight / hull surface area: 158 lbs/sq ft or 769 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.95
      - Longitudinal: 1.70
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform

[maddox]

That last one is a nice PB, but the reduction of the main armament, is it worth the effort?

Why not stepping down to 12" main guns? Or a dual setup, 2 twins on centerline ends and a tripple amidships?

2*2+1*3 340 <16Ktons, Enter country Enter ship type laid down 1915 (Engine 1912)

Displacement:
   15.805 t light; 16.736 t standard; 17.886 t normal; 18.806 t full load

Dimensions: Length overall / water x beam x draught
   556,10 ft / 556,10 ft x 85,30 ft x 23,95 ft (normal load)
   169,50 m / 169,50 m x 26,00 m  x 7,30 m

Armament:
      4 - 13,39" / 340 mm guns (2x2 guns), 1.199,24lbs / 543,97kg shells, 1915 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread
      3 - 13,39" / 340 mm guns (1x3 guns), 1.199,24lbs / 543,97kg shells, 1915 Model
     Breech loading guns in a turret (on a barbette)
     on centreline amidships
      10 - 4,72" / 120 mm guns in single mounts, 52,72lbs / 23,92kg shells, 1915 Model
     Breech loading guns in deck mounts
     on side, evenly spread
      4 - 3,00" / 76,2 mm guns in single mounts, 13,50lbs / 6,12kg shells, 1915 Model
     Breech loading guns in deck mounts
     on centreline, evenly spread, all raised mounts
   Weight of broadside 8.976 lbs / 4.071 kg
   Shells per gun, main battery: 110
   4 - 18,0" / 457,2 mm submerged torpedo tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   8,00" / 203 mm   410,09 ft / 125,00 m   11,00 ft / 3,35 m
   Ends:   2,00" / 51 mm   140,00 ft / 42,67 m   11,08 ft / 3,38 m
     6,01 ft / 1,83 m Unarmoured ends
   Upper:   2,00" / 51 mm   361,47 ft / 110,18 m   8,00 ft / 2,44 m
     Main Belt covers 113% of normal length
     Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
      1,50" / 38 mm   361,47 ft / 110,18 m   22,00 ft / 6,71 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   8,00" / 203 mm   4,00" / 102 mm      8,00" / 203 mm
   2nd:   8,00" / 203 mm   4,00" / 102 mm      8,00" / 203 mm
   3rd:   0,50" / 13 mm         -               -

   - Armour deck: 1,25" / 32 mm, Conning tower: 8,00" / 203 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 58.532 shp / 43.665 Kw = 26,00 kts
   Range 10.000nm at 10,00 kts
   Bunker at max displacement = 2.070 tons

Complement:
   773 - 1.005

Cost:
   £2,651 million / $10,603 million

Distribution of weights at normal displacement:
   Armament: 1.122 tons, 6,3%
   Armour: 4.245 tons, 23,7%
      - Belts: 1.893 tons, 10,6%
      - Torpedo bulkhead: 441 tons, 2,5%
      - Armament: 1.026 tons, 5,7%
      - Armour Deck: 766 tons, 4,3%
      - Conning Tower: 118 tons, 0,7%
   Machinery: 2.334 tons, 13,0%
   Hull, fittings & equipment: 7.755 tons, 43,4%
   Fuel, ammunition & stores: 2.081 tons, 11,6%
   Miscellaneous weights: 350 tons, 2,0%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     19.888 lbs / 9.021 Kg = 16,6 x 13,4 " / 340 mm shells or 3,1 torpedoes
   Stability (Unstable if below 1.00): 1,21
   Metacentric height 5,6 ft / 1,7 m
   Roll period: 15,1 seconds
   Steadiness   - As gun platform (Average = 50 %): 51 %
         - Recoil effect (Restricted arc if above 1.00): 0,49
   Seaboat quality  (Average = 1.00): 1,03

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,551
   Length to Beam Ratio: 6,52 : 1
   'Natural speed' for length: 23,58 kts
   Power going to wave formation at top speed: 54 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      27,23 ft / 8,30 m
      - Forecastle (20%):   20,01 ft / 6,10 m
      - Mid (50%):      16,50 ft / 5,03 m
      - Quarterdeck (15%):   16,50 ft / 5,03 m
      - Stern:      16,50 ft / 5,03 m
      - Average freeboard:   18,31 ft / 5,58 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 123,9%
      - Above water (accommodation/working, high = better): 141,4%
   Waterplane Area: 33.137 Square feet or 3.078 Square metres
   Displacement factor (Displacement / loading): 98%
   Structure weight / hull surface area: 170 lbs/sq ft or 829 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,95
      - Longitudinal: 1,63
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent

[Borys]

You plan to screen your battleships against what, exactly?
Borys

[Korpen]

I would say: Drop the torpedo bulkhead, it does not have that big an effect, but cost ALLOT of weight.

25kts with 8x34cm guns, stabillity is lower then i like, but otherwise she is fine :)

MCVI, Peru BC laid down 1915 (Engine 1916)

Displacement:
   16 001 t light; 17 011 t standard; 18 431 t normal; 19 567 t full load

Dimensions: Length overall / water x beam x draught
   557,74 ft / 557,74 ft x 78,74 ft x 28,25 ft (normal load)
   170,00 m / 170,00 m x 24,00 m  x 8,61 m

Armament:
      8 - 13,39" / 340 mm guns (4x2 guns), 1 199,24lbs / 543,97kg shells, 1915 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, evenly spread, 1 raised mount
     Aft Main mounts separated by engine room
      14 - 4,72" / 120 mm guns in single mounts, 52,91lbs / 24,00kg shells, 1915 Model
     Breech loading guns in deck mounts
     on side, all amidships
   Weight of broadside 10 335 lbs / 4 688 kg
   Shells per gun, main battery: 110

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   9,84" / 250 mm   321,52 ft / 98,00 m   13,78 ft / 4,20 m
   Ends:   2,95" / 75 mm   236,22 ft / 72,00 m   11,48 ft / 3,50 m
   Upper:   2,95" / 75 mm   362,53 ft / 110,50 m   8,20 ft / 2,50 m
     Main Belt covers 89 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   11,0" / 280 mm   4,33" / 110 mm      7,09" / 180 mm
   2nd:   1,18" / 30 mm         -               -

   - Armour deck: 2,36" / 60 mm, Conning tower: 7,87" / 200 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 50 000 shp / 37 300 Kw = 25,07 kts
   Range 9 900nm at 12,00 kts
   Bunker at max displacement = 2 556 tons

Complement:
   790 - 1 028

Cost:
   £2,772 million / $11,088 million

Distribution of weights at normal displacement:
   Armament: 1 292 tons, 7,0 %
   Armour: 5 338 tons, 29,0 %
      - Belts: 2 601 tons, 14,1 %
      - Torpedo bulkhead: 0 tons, 0,0 %
      - Armament: 1 316 tons, 7,1 %
      - Armour Deck: 1 302 tons, 7,1 %
      - Conning Tower: 118 tons, 0,6 %
   Machinery: 1 863 tons, 10,1 %
   Hull, fittings & equipment: 7 189 tons, 39,0 %
   Fuel, ammunition & stores: 2 430 tons, 13,2 %
   Miscellaneous weights: 320 tons, 1,7 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     19 022 lbs / 8 628 Kg = 15,9 x 13,4 " / 340 mm shells or 2,3 torpedoes
   Stability (Unstable if below 1.00): 1,06
   Metacentric height 3,9 ft / 1,2 m
   Roll period: 16,6 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0,81
   Seaboat quality  (Average = 1.00): 1,05

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,520
   Length to Beam Ratio: 7,08 : 1
   'Natural speed' for length: 23,62 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 47
   Bow angle (Positive = bow angles forward): 0,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      19,69 ft / 6,00 m
      - Forecastle (20 %):   16,40 ft / 5,00 m
      - Mid (50 %):      16,40 ft / 5,00 m
      - Quarterdeck (15 %):   16,40 ft / 5,00 m
      - Stern:      16,40 ft / 5,00 m
      - Average freeboard:   16,67 ft / 5,08 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 87,6 %
      - Above water (accommodation/working, high = better): 117,9 %
   Waterplane Area: 29 803 Square feet or 2 769 Square metres
   Displacement factor (Displacement / loading): 93 %
   Structure weight / hull surface area: 164 lbs/sq ft or 802 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,94
      - Longitudinal: 1,64
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is adequate

[Sachmle]

With that one you may as well drop the speed increase the belt and the beam and call it a battleship. Less belt armour more speed for a BC.

[Korpen]

With that one you may as well drop the speed increase the belt and the beam and call it a battleship. Less belt armour more speed for a BC.

Whos ship are you talking about?

[Sachmle]

Yours, but only because I misread the 11" turret face armour as the belt armour. She's still slow for her weight.  :P

[Korpen]

Hm, it sure seems like battlecruisers are in fashion here at the moment. :)

[Jefgte]

Borys wrote:
"You plan to screen your battleships against what, exactly?"

In the battle line with others BBs, engage enemy cruisers or help BBs to do the job.
4 kts superior speed just for a certain liberty in the squadron.

This BC is not made to run after enemy BC.
When enemy BC want action...
Come on ...
Catch me...
And now, are you ready to receive 1200lb shells ?


Jef  ;)

[Jefgte]

Korpen wrote:

"Hm, it sure seems like battlecruisers are in fashion here at the moment"


Yes, I am testing 1x 16000t BC in place of 2x8000t AC.


Jef  ;)

[Jefgte]

Maddox wrote:
"...2 twins on centerline ends and a tripple amidships?"

That's a good idea, the weight saved can be use for better protection & higher speed.


Jef  ;)