Persian CBb

[ledeper]

Pad-I-Shah II, Persia CDBb laid down 1916 (Engine 1906)

Displacement:
   7.115 t light; 7.603 t standard; 8.332 t normal; 8.916 t full load

Dimensions: Length overall / water x beam x draught
   388,57 ft / 387,14 ft x 59,06 ft x 19,69 ft (normal load)
   118,44 m / 118,00 m x 18,00 m  x 6,00 m

Armament:
      4 - 12,00" / 305 mm guns (2x2 guns), 864,00lbs / 391,90kg shells, 1916 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, evenly spread
      10 - 4,00" / 102 mm guns in single mounts, 32,00lbs / 14,51kg shells, 1916 Model
     Quick firing guns in deck mounts
     on side, all amidships
   Weight of broadside 3.776 lbs / 1.713 kg
   Shells per gun, main battery: 150

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   9,84" / 250 mm   233,60 ft / 71,20 m   11,09 ft / 3,38 m
   Ends:   1,97" / 50 mm   123,98 ft / 37,79 m   11,09 ft / 3,38 m
     29,56 ft / 9,01 m Unarmoured ends
   Upper:   3,94" / 100 mm   230,31 ft / 70,20 m   8,01 ft / 2,44 m
     Main Belt covers 93 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   9,84" / 250 mm   3,94" / 100 mm      7,87" / 200 mm
   2nd:   1,00" / 25 mm         -               -

   - Armour deck: 1,97" / 50 mm, Conning tower: 9,84" / 250 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 10.102 shp / 7.536 Kw = 18,00 kts
   Range 5.000nm at 12,00 kts
   Bunker at max displacement = 1.313 tons

Complement:
   435 - 566

Cost:
   £1,207 million / $4,826 million

Distribution of weights at normal displacement:
   Armament: 472 tons, 5,7 %
   Armour: 2.798 tons, 33,6 %
      - Belts: 1.560 tons, 18,7 %
      - Torpedo bulkhead: 0 tons, 0,0 %
      - Armament: 514 tons, 6,2 %
      - Armour Deck: 637 tons, 7,6 %
      - Conning Tower: 87 tons, 1,0 %
   Machinery: 656 tons, 7,9 %
   Hull, fittings & equipment: 2.889 tons, 34,7 %
   Fuel, ammunition & stores: 1.218 tons, 14,6 %
   Miscellaneous weights: 300 tons, 3,6 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     10.738 lbs / 4.871 Kg = 12,4 x 12,0 " / 305 mm shells or 1,9 torpedoes
   Stability (Unstable if below 1.00): 1,08
   Metacentric height 2,7 ft / 0,8 m
   Roll period: 15,2 seconds
   Steadiness   - As gun platform (Average = 50 %): 74 %
         - Recoil effect (Restricted arc if above 1.00): 0,83
   Seaboat quality  (Average = 1.00): 1,47

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,648
   Length to Beam Ratio: 6,56 : 1
   'Natural speed' for length: 19,68 kts
   Power going to wave formation at top speed: 47 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 5,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      16,40 ft / 5,00 m
      - Forecastle (20 %):   13,78 ft / 4,20 m
      - Mid (50 %):      13,78 ft / 4,20 m
      - Quarterdeck (15 %):   13,78 ft / 4,20 m
      - Stern:      13,78 ft / 4,20 m
      - Average freeboard:   13,99 ft / 4,26 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 73,8 %
      - Above water (accommodation/working, high = better): 105,5 %
   Waterplane Area: 17.482 Square feet or 1.624 Square metres
   Displacement factor (Displacement / loading): 102 %
   Structure weight / hull surface area: 115 lbs/sq ft or 563 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,93
      - Longitudinal: 1,86
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

To be laid down 2/16

[ledeper]

Cyrus the Great II, Persia CDBB laid down 1913 (Engine 1906)

Displacement:
   4.842 t light; 5.148 t standard; 5.745 t normal; 6.223 t full load

Dimensions: Length overall / water x beam x draught
   291,90 ft / 288,71 ft x 52,49 ft x 19,69 ft (normal load)
   88,97 m / 88,00 m x 16,00 m  x 6,00 m

Armament:
      4 - 10,00" / 254 mm guns (2x2 guns), 462,50lbs / 209,79kg shells, 1885 Model
     Breech loading guns in deck mounts
     on centreline ends, evenly spread
      10 - 6,00" / 152 mm guns in single mounts, 108,00lbs / 48,99kg shells, 1913 Model
     Breech loading guns in deck mounts
     on side, all amidships
      2 - 1,57" / 40,0 mm guns in single mounts, 1,95lbs / 0,88kg shells, 1913 Model
     Breech loading guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 2.934 lbs / 1.331 kg
   Shells per gun, main battery: 110

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   9,84" / 250 mm   194,23 ft / 59,20 m   8,69 ft / 2,65 m
   Ends:   Unarmoured
   Upper:   3,94" / 100 mm   187,66 ft / 57,20 m   8,01 ft / 2,44 m
     Main Belt covers 103 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   9,84" / 250 mm   5,91" / 150 mm            -

   - Armour deck: 1,97" / 50 mm, Conning tower: 7,87" / 200 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 14.090 shp / 10.511 Kw = 19,95 kts
   Range 5.000nm at 12,00 kts
   Bunker at max displacement = 1.075 tons

Complement:
   329 - 428

Cost:
   £0,661 million / $2,643 million

Distribution of weights at normal displacement:
   Armament: 367 tons, 6,4 %
   Armour: 1.714 tons, 29,8 %
      - Belts: 1.003 tons, 17,5 %
      - Torpedo bulkhead: 0 tons, 0,0 %
      - Armament: 225 tons, 3,9 %
      - Armour Deck: 432 tons, 7,5 %
      - Conning Tower: 54 tons, 0,9 %
   Machinery: 915 tons, 15,9 %
   Hull, fittings & equipment: 1.697 tons, 29,5 %
   Fuel, ammunition & stores: 903 tons, 15,7 %
   Miscellaneous weights: 150 tons, 2,6 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     5.725 lbs / 2.597 Kg = 11,4 x 10,0 " / 254 mm shells or 1,1 torpedoes
   Stability (Unstable if below 1.00): 1,34
   Metacentric height 3,2 ft / 1,0 m
   Roll period: 12,3 seconds
   Steadiness   - As gun platform (Average = 50 %): 51 %
         - Recoil effect (Restricted arc if above 1.00): 0,37
   Seaboat quality  (Average = 1.00): 1,03

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,674
   Length to Beam Ratio: 5,50 : 1
   'Natural speed' for length: 16,99 kts
   Power going to wave formation at top speed: 63 %
   Trim (Max stability = 0, Max steadiness = 100): 50
   Bow angle (Positive = bow angles forward): 10,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      18,04 ft / 5,50 m
      - Forecastle (20 %):   13,81 ft / 4,21 m
      - Mid (50 %):      13,81 ft / 4,21 m
      - Quarterdeck (15 %):   13,81 ft / 4,21 m
      - Stern:      13,81 ft / 4,21 m
      - Average freeboard:   14,15 ft / 4,31 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 102,7 %
      - Above water (accommodation/working, high = better): 94,9 %
   Waterplane Area: 11.867 Square feet or 1.102 Square metres
   Displacement factor (Displacement / loading): 87 %
   Structure weight / hull surface area: 95 lbs/sq ft or 465 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1,04
      - Longitudinal: 3,45
      - Overall: 1,18
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is adequate
Old guns reused from scrapped Cbb