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
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