The Osmanieh and her sister ship, in need of upgrades, will undergo refit to improve their AA and damage control systems as well as add electronics.
Osmanieh, Turkish (Indian built) Battleship laid down 1929
Displacement:
27,033 t light; 28,643 t standard; 30,933 t normal; 32,764 t full load
Dimensions: Length overall / water x beam x draught
692.12 ft / 680.00 ft x 102.00 ft x 28.38 ft (normal load)
210.96 m / 207.26 m x 31.09 m x 8.65 m
Armament:
8 - 13.78" / 350 mm guns (2x4 guns), 1,308.33lbs / 593.45kg shells, 1929 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
4 - 5.91" / 150 mm guns (2x2 guns), 103.21lbs / 46.82kg shells, 1929 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, all raised mounts
8 - 5.91" / 150 mm guns (4x2 guns), 103.21lbs / 46.82kg shells, 1929 Model
Breech loading guns in turrets (on barbettes)
on side, evenly spread
16 - 4.13" / 105 mm guns (8x2 guns), 35.22lbs / 15.98kg shells, 1929 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
52 - 1.46" / 37.1 mm guns (24 mounts), 1.56lbs / 0.71kg shells, 1929 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, 16 raised mounts
Weight of broadside 12,350 lbs / 5,602 kg
Shells per gun, main battery: 140
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 14.8" / 376 mm 398.00 ft / 121.31 m 11.80 ft / 3.60 m
Ends: Unarmoured
Main Belt covers 90 % of normal length
- Torpedo Bulkhead:
1.00" / 25 mm 398.00 ft / 121.31 m 26.00 ft / 7.92 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 15.8" / 401 mm 11.8" / 300 mm 13.8" / 351 mm
2nd: 3.15" / 80 mm 1.38" / 35 mm 3.15" / 80 mm
3rd: 3.15" / 80 mm 1.38" / 35 mm 3.15" / 80 mm
4th: 1.00" / 25 mm - -
5th: 0.78" / 20 mm - -
- Armour deck: 4.50" / 114 mm, Conning tower: 3.00" / 76 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 99,210 shp / 74,011 Kw = 27.82 kts
Range 14,500nm at 12.00 kts
Bunker at max displacement = 4,120 tons
Complement:
1,166 - 1,516
Cost:
£10.678 million / $42.711 million
Distribution of weights at normal displacement:
Armament: 1,544 tons, 5.0 %
Armour: 9,783 tons, 31.6 %
- Belts: 3,090 tons, 10.0 %
- Torpedo bulkhead: 383 tons, 1.2 %
- Armament: 2,217 tons, 7.2 %
- Armour Deck: 4,030 tons, 13.0 %
- Conning Tower: 64 tons, 0.2 %
Machinery: 3,047 tons, 9.9 %
Hull, fittings & equipment: 12,309 tons, 39.8 %
Fuel, ammunition & stores: 3,900 tons, 12.6 %
Miscellaneous weights: 350 tons, 1.1 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
42,943 lbs / 19,479 Kg = 32.8 x 13.8 " / 350 mm shells or 6.4 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 6.4 ft / 1.9 m
Roll period: 17.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.48
Seaboat quality (Average = 1.00): 1.12
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 6.67 : 1
'Natural speed' for length: 26.08 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 63
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 26.00 ft / 7.92 m
- Forecastle (25 %): 20.00 ft / 6.10 m
- Mid (50 %): 20.00 ft / 6.10 m
- Quarterdeck (15 %): 20.00 ft / 6.10 m
- Stern: 20.00 ft / 6.10 m
- Average freeboard: 20.60 ft / 6.28 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 89.8 %
- Above water (accommodation/working, high = better): 158.1 %
Waterplane Area: 48,406 Square feet or 4,497 Square metres
Displacement factor (Displacement / loading): 108 %
Structure weight / hull surface area: 187 lbs/sq ft or 913 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.44
- Overall: 1.01
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
Number of shells per main gun reduced from 150 to 140
Conning tower armour reduced and enclosed shelter added to top
37mm guns in 24 mounts (8x4, 4x2, 12x1)
aircraft and catapult removed
4.1" deck continued between fore and aft superstructure
Misc weight breakdown:
Electronics -140 tons (air/surface/dirrector radars comunications and various systems)
6x300kw diesel generators - 60 tons
Flag facilities - 50 tons
Crew comforts - 50 tons
Additional damage control systems - 50 tons