'B' Kruvazörler (Protected/Light Cruisers)

[Guinness]

Seyat Class - 1884
BK-1 Seyat, laid down 1884, acquired by Bahrain 1901
BK-2 Furat, laid down 1884, training ship beginning 1900 - Harbor Hulk 1917

Beyazid Class - 1890
BK-3 Beyazid, laid down 1890
BK-4 Çandarli Ibrahim, laid down 1891

Hamidieh Class - 1898
BK-5 Hamidieh, laid down 1898
BK-6 Medjidieh, laid down 1898
BK-7 Orkanieh, laid down 1899
BK-8 Memdouhied, laid down 1899

Drama Class - 1904
BK-9 Drama, laid down 1904
BK-10 Midilli, laid down 1904, Sunk 1912
BK-11 Hüdavendigar, laid down 1904
BK-12 Muzaffer, laid down 1904

Hamadiye Class - 1910
BK-13 Hamadiye, laid down 1910
BK-14 Medjidiye, laid down 1910
BK-15 Midilli, laid down 1912
BK-16 Rodes, laid down 1912

Imbros Class - 1914
BK-17 Imbros, laid down  1914
BK-18 Semadirek, laid down  1914
BK-19 Kilimli, laid down  1914
BK-20 Sömbeki, laid down  1914

Furat Class - 1917
BK-21 Seyat, laid down 1917
BK-22 Furat, laid down 1917

[Guinness]

These old cruisers have long outlived their usefulness as seafaring warships. One has been sold and currently serves as flagship of the Bahraini Navy. The other operates out of Taskizak Naval Shipyard as a training ship for engineers and officer cadets.

BK-1 Seyat, laid down 1884, acquired by Bahrain 1901
BK-2 Furat, laid down 1884, training ship beginning 1900 - Harbor Hulk 1917

Seyat, Ottoman protected cruiser laid down 1884

Displacement:
2,668 t light; 2,843 t standard; 3,140 t normal; 3,378 t full load

Dimensions: Length overall / water x beam x draught
275.59 ft / 275.59 ft x 42.65 ft x 16.40 ft (normal load)
84.00 m / 84.00 m x 13.00 m x 5.00 m

Armament:
2 - 9.84" / 250 mm guns in single mounts, 440.92lbs / 200.00kg shells, 1884 Model
Breech loading guns in deck mounts with hoists
on centreline ends, evenly spread
4 - 5.91" / 150 mm guns in single mounts, 99.21lbs / 45.00kg shells, 1884 Model
Breech loading guns in deck mounts with hoists
on side, all amidships
8 - 0.59" / 15.0 mm guns in single mounts, 0.11lbs / 0.05kg shells, 1884 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 1,280 lbs / 580 kg
Shells per gun, main battery: 150

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.39" / 10 mm 0.79" / 20 mm
2nd: 0.98" / 25 mm - -
3rd: 0.20" / 5 mm - -

- Armour deck: 0.79" / 20 mm, Conning tower: 1.97" / 50 mm

Machinery:
Coal fired boilers, simple reciprocating steam engines,
Direct drive, 2 shafts, 5,802 ihp / 4,328 Kw = 17.55 kts
Range 3,000nm at 10.00 kts
Bunker at max displacement = 535 tons (100% coal)

Complement:
209 - 272

Cost:
£0.374 million / $1.496 million

Distribution of weights at normal displacement:
Armament: 155 tons, 4.9 %
Armour: 161 tons, 5.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 30 tons, 0.9 %
- Armour Deck: 122 tons, 3.9 %
- Conning Tower: 9 tons, 0.3 %
Machinery: 1,072 tons, 34.1 %
Hull, fittings & equipment: 1,260 tons, 40.1 %
Fuel, ammunition & stores: 472 tons, 15.0 %
Miscellaneous weights: 20 tons, 0.6 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,378 lbs / 625 Kg = 3.2 x 9.8 " / 250 mm shells or 0.4 torpedoes
Stability (Unstable if below 1.00): 1.27
Metacentric height 2.2 ft / 0.7 m
Roll period: 12.2 seconds
Steadiness - As gun platform (Average = 50 %): 76 %
- Recoil effect (Restricted arc if above 1.00): 0.80
Seaboat quality (Average = 1.00): 1.40

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.570
Length to Beam Ratio: 6.46 : 1
'Natural speed' for length: 16.60 kts
Power going to wave formation at top speed: 53 %
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: 16.40 ft / 5.00 m
- Forecastle (15 %): 12.47 ft / 3.80 m
- Mid (50 %): 12.47 ft / 3.80 m (11.48 ft / 3.50 m aft of break)
- Quarterdeck (10 %): 11.48 ft / 3.50 m
- Stern: 11.48 ft / 3.50 m
- Average freeboard: 12.21 ft / 3.72 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 149.3 %
- Above water (accommodation/working, high = better): 91.0 %
Waterplane Area: 8,359 Square feet or 777 Square metres
Displacement factor (Displacement / loading): 85 %
Structure weight / hull surface area: 96 lbs/sq ft or 467 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.63
- Overall: 1.00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily

[Guinness]

This class of cruisers currently serve as the core of IV Donama (4th Fleet), on the Red Sea. Too old to operate with the battlefleet out of Istanbul, they are intended to act as raiders in times of war.

BK-3 Beyazid, laid down 1890
BK-4 Çandarli Ibrahim, laid down 1891

Beyazid, Ottoman protected cruiser laid down 1890

Displacement:
4,899 t light; 5,066 t standard; 5,564 t normal; 5,962 t full load

Dimensions: Length overall / water x beam x draught
498.69 ft / 498.69 ft x 50.85 ft x 15.42 ft (normal load)
152.00 m / 152.00 m x 15.50 m x 4.70 m

Armament:
6 - 5.91" / 150 mm guns in single mounts, 99.21lbs / 45.00kg shells, 1890 Model
Breech loading guns in deck mounts with hoists
on centreline ends, evenly spread
4 - 2.95" / 75.0 mm guns in single mounts, 13.23lbs / 6.00kg shells, 1890 Model
Breech loading guns in deck mounts with hoists
on side, all amidships
10 - 0.59" / 15.0 mm guns in single mounts, 0.10lbs / 0.05kg shells, 1890 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 649 lbs / 294 kg
Shells per gun, main battery: 150
2 - 15.7" / 400 mm submerged torpedo tubes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.97" / 50 mm 0.39" / 10 mm 0.79" / 20 mm
2nd: 0.98" / 25 mm - -
3rd: 0.20" / 5 mm - -

- Armour deck: 0.98" / 25 mm, Conning tower: 1.97" / 50 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 11,713 ihp / 8,738 Kw = 20.70 kts
Range 4,000nm at 10.00 kts
Bunker at max displacement = 896 tons (100% coal)

Complement:
321 - 418

Cost:
£0.546 million / $2.182 million

Distribution of weights at normal displacement:
Armament: 84 tons, 1.5 %
Armour: 353 tons, 6.3 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 33 tons, 0.6 %
- Armour Deck: 307 tons, 5.5 %
- Conning Tower: 13 tons, 0.2 %
Machinery: 2,169 tons, 39.0 %
Hull, fittings & equipment: 2,273 tons, 40.9 %
Fuel, ammunition & stores: 665 tons, 11.9 %
Miscellaneous weights: 20 tons, 0.4 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,019 lbs / 1,823 Kg = 39.0 x 5.9 " / 150 mm shells or 0.8 torpedoes
Stability (Unstable if below 1.00): 1.36
Metacentric height 3.1 ft / 1.0 m
Roll period: 12.1 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- Recoil effect (Restricted arc if above 1.00): 0.33
Seaboat quality (Average = 1.00): 1.88

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.498
Length to Beam Ratio: 9.81 : 1
'Natural speed' for length: 22.33 kts
Power going to wave formation at top speed: 37 %
Trim (Max stability = 0, Max steadiness = 100): 53
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 %): 18.04 ft / 5.50 m
- Mid (50 %): 18.04 ft / 5.50 m (16.40 ft / 5.00 m aft of break)
- Quarterdeck (15 %): 16.40 ft / 5.00 m
- Stern: 16.40 ft / 5.00 m
- Average freeboard: 17.36 ft / 5.29 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 141.8 %
- Above water (accommodation/working, high = better): 171.7 %
Waterplane Area: 16,866 Square feet or 1,567 Square metres
Displacement factor (Displacement / loading): 103 %
Structure weight / hull surface area: 84 lbs/sq ft or 412 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.31
- Overall: 1.00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Guinness]

This class was designed to serve as escorts for the core fleet, helping to screen against enemy torpedo boats. Although somewhat slow compared to foreign designs, the large number of 120mm and 75mm weapons should be effective against marauding small vessels.

BK-5 Hamidieh, laid down 1898
BK-6 Medjidieh, laid down 1898
BK-7 Orkanieh, laid down 1899
BK-8 Memdouhied, laid down 1899

Hamidieh, Ottoman protected cruiser laid down 1898

Displacement:
2,908 t light; 3,012 t standard; 3,400 t normal; 3,711 t full load

Dimensions: Length overall / water x beam x draught
423.23 ft / 423.23 ft x 44.29 ft x 14.11 ft (normal load)
129.00 m / 129.00 m x 13.50 m x 4.30 m

Armament:
2 - 4.72" / 120 mm guns in single mounts, 52.91lbs / 24.00kg shells, 1898 Model
Breech loading guns in deck mounts with hoists
on centreline ends, evenly spread
4 - 4.72" / 120 mm guns in single mounts, 52.91lbs / 24.00kg shells, 1898 Model
Breech loading guns in deck mounts with hoists
on side ends, evenly spread
4 - 2.95" / 75.0 mm guns in single mounts, 13.23lbs / 6.00kg shells, 1898 Model
Quick firing guns in casemate mounts
on side, all forward
6 - 0.59" / 15.0 mm guns in single mounts, 0.10lbs / 0.05kg shells, 1898 Model
Machine guns in deck mounts
on side, evenly spread, 2 raised mounts
Weight of broadside 371 lbs / 168 kg
Shells per gun, main battery: 150
2 - 15.7" / 400 mm submerged torpedo tubes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm - -
2nd: 0.79" / 20 mm - -

- Armour deck: 0.98" / 25 mm, Conning tower: 1.18" / 30 mm

Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 8,236 ihp / 6,144 Kw = 20.29 kts
Range 5,000nm at 10.00 kts
Bunker at max displacement = 698 tons (100% coal)

Complement:
222 - 289

Cost:
£0.326 million / $1.306 million

Distribution of weights at normal displacement:
Armament: 46 tons, 1.4 %
Armour: 238 tons, 7.0 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 15 tons, 0.4 %
- Armour Deck: 218 tons, 6.4 %
- Conning Tower: 6 tons, 0.2 %
Machinery: 1,328 tons, 39.1 %
Hull, fittings & equipment: 1,295 tons, 38.1 %
Fuel, ammunition & stores: 492 tons, 14.5 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,488 lbs / 1,129 Kg = 47.2 x 4.7 " / 120 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.41
Metacentric height 2.7 ft / 0.8 m
Roll period: 11.3 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- Recoil effect (Restricted arc if above 1.00): 0.26
Seaboat quality (Average = 1.00): 1.84

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.450
Length to Beam Ratio: 9.56 : 1
'Natural speed' for length: 20.57 kts
Power going to wave formation at top speed: 39 %
Trim (Max stability = 0, Max steadiness = 100): 55
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: 16.40 ft / 5.00 m
- Forecastle (15 %): 15.09 ft / 4.60 m
- Mid (60 %): 15.09 ft / 4.60 m (14.11 ft / 4.30 m aft of break)
- Quarterdeck (15 %): 14.11 ft / 4.30 m
- Stern: 14.11 ft / 4.30 m
- Average freeboard: 14.78 ft / 4.50 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 141.9 %
- Above water (accommodation/working, high = better): 151.2 %
Waterplane Area: 11,957 Square feet or 1,111 Square metres
Displacement factor (Displacement / loading): 104 %
Structure weight / hull surface area: 67 lbs/sq ft or 329 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.42
- Overall: 1.00
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Guinness]

This class has replaced the Hamidieh class in their designed role as escorts to the battlefleet. As new warships are laid down and I Donama modernizes, it was found that the Hamidiehs lacked the range to accompany the battlefleet on longer missions, particularly considering the projected range of new battleships and torpedo boats. The Dramas also represent a step forward in armament, now using the 150mm gun in addition to the tried-and-true 120mm. The 75mm QF gun has been dropped.

BK-9 Drama, laid down 1904
BK-10 Midilli, laid down 1904, Sunk 1912
BK-11 Hüdavendigar, laid down 1904
BK-12 Muzaffer, laid down 1904

Drama, Ottoman protected cruiser laid down 1904 (Engine 1905)

Displacement:
   3,328 t light; 3,500 t standard; 4,258 t normal; 4,865 t full load

Dimensions: Length overall / water x beam x draught
   399.61 ft / 399.61 ft x 45.93 ft x 18.04 ft (normal load)
   121.80 m / 121.80 m x 14.00 m  x 5.50 m

Armament:
     4 - 5.91" / 150 mm guns in single mounts, 99.21lbs / 45.00kg shells, 1904 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread, 2 raised mounts - superfiring
     6 - 4.72" / 120 mm guns in single mounts, 52.91lbs / 24.00kg shells, 1904 Model
     Breech loading guns in deck mounts with hoists
     on side, evenly spread
     2 - 0.59" / 15.0 mm guns in single mounts, 0.10lbs / 0.05kg shells, 1904 Model
     Machine guns in deck mounts
     on side ends, evenly spread
     6 - 0.59" / 15.0 mm guns in single mounts, 0.10lbs / 0.05kg shells, 1904 Model
     Breech loading guns in deck mounts
     on side, evenly spread, 2 raised mounts
   Weight of broadside 715 lbs / 324 kg
   Shells per gun, main battery: 200
   4 - 15.7" / 400 mm above water torpedoes

Armour:
  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   2.95" / 75 mm   0.79" / 20 mm      1.97" / 50 mm
   2nd:   1.57" / 40 mm         -         0.39" / 10 mm
   4th:   0.20" / 5 mm         -               -
   5th:   0.20" / 5 mm         -               -

  - Armour deck: 1.10" / 28 mm, Conning tower: 1.18" / 30 mm

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 3 shafts, 15,000 shp / 11,190 Kw = 22.80 kts
   Range 8,000nm at 10.00 kts
   Bunker at max displacement = 1,365 tons (100% coal)

Complement:
   263 - 342

Cost:
   £0.368 million / $1.472 million

Distribution of weights at normal displacement:
   Armament: 91 tons, 2.1 %
   Armour: 301 tons, 7.1 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 55 tons, 1.3 %
      - Armour Deck: 239 tons, 5.6 %
      - Conning Tower: 7 tons, 0.2 %
   Machinery: 1,250 tons, 29.4 %
   Hull, fittings & equipment: 1,486 tons, 34.9 %
   Fuel, ammunition & stores: 931 tons, 21.9 %
   Miscellaneous weights: 200 tons, 4.7 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     3,739 lbs / 1,696 Kg = 36.3 x 5.9 " / 150 mm shells or 0.8 torpedoes
   Stability (Unstable if below 1.00): 1.26
   Metacentric height 2.4 ft / 0.7 m
   Roll period: 12.5 seconds
   Steadiness   - As gun platform (Average = 50 %): 81 %
         - Recoil effect (Restricted arc if above 1.00): 0.46
   Seaboat quality  (Average = 1.00): 1.64

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.450
   Length to Beam Ratio: 8.70 : 1
   'Natural speed' for length: 19.99 kts
   Power going to wave formation at top speed: 48 %
   Trim (Max stability = 0, Max steadiness = 100): 49
   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:      22.97 ft / 7.00 m
      - Forecastle (15 %):   15.42 ft / 4.70 m
      - Mid (60 %):      15.42 ft / 4.70 m (13.78 ft / 4.20 m aft of break)
      - Quarterdeck (15 %):   13.78 ft / 4.20 m
      - Stern:      13.78 ft / 4.20 m
      - Average freeboard:   15.22 ft / 4.64 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 117.6 %
      - Above water (accommodation/working, high = better): 115.2 %
   Waterplane Area: 11,708 Square feet or 1,088 Square metres
   Displacement factor (Displacement / loading): 114 %
   Structure weight / hull surface area: 75 lbs/sq ft or 366 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 1.88
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform
   Excellent seaboat, comfortable, can fire her guns in the heaviest weather

[Guinness]

BK-13 Hamadiye, laid down 1910
BK-14 Medjidiye, laid down 1910
BK-15 Midilli, laid down 1912
BK-16 Rodes, laid down 1912

PC-1910-c, Ottoman Empire  Protected Cruiser laid down 1910 (Engine 1909)

Displacement:
  4,000 t light; 4,218 t standard; 4,669 t normal; 5,029 t full load

Dimensions: Length overall / water x beam x draught
  426.51 ft / 426.51 ft x 42.65 ft x 18.04 ft (normal load)
  130.00 m / 130.00 m x 13.00 m  x 5.50 m

Armament:
     4 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1910 Model
    Breech loading guns in deck mounts with hoists
    on centreline ends, evenly spread, 2 raised mounts - superfiring
     4 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1910 Model
    Breech loading guns in deck mounts with hoists
    on side, all amidships
     8 - 0.59" / 15.0 mm guns in single mounts, 0.10lbs / 0.05kg shells, 1910 Model
    Quick firing guns in deck mounts
    on side, evenly spread, all raised mounts
  Weight of broadside 825 lbs / 374 kg
  Shells per gun, main battery: 250
  4 - 17.7" / 450 mm above water torpedoes

Armour:
  - Belts:      Width (max)   Length (avg)      Height (avg)
  Main:   2.95" / 75 mm   367.45 ft / 112.00 m   8.20 ft / 2.50 m
  Ends:   Unarmoured
    Main Belt covers 133 % of normal length

  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
  Main:   1.97" / 50 mm         -               -
  2nd:   1.97" / 50 mm         -               -
  3rd:   0.98" / 25 mm         -               -

  - Armour deck: 0.98" / 25 mm, Conning tower: 3.94" / 100 mm

Machinery:
  Coal fired boilers, steam turbines,
  Direct drive, 3 shafts, 32,000 shp / 23,872 Kw = 27.35 kts
  Range 5,500nm at 10.00 kts
  Bunker at max displacement = 811 tons (100% coal)

Complement:
  282 - 367

Cost:
  £0.450 million / $1.801 million

Distribution of weights at normal displacement:
  Armament: 103 tons, 2.2 %
  Armour: 655 tons, 14.0 %
     - Belts: 355 tons, 7.6 %
     - Torpedo bulkhead: 0 tons, 0.0 %
     - Armament: 56 tons, 1.2 %
     - Armour Deck: 220 tons, 4.7 %
     - Conning Tower: 24 tons, 0.5 %
  Machinery: 1,598 tons, 34.2 %
  Hull, fittings & equipment: 1,582 tons, 33.9 %
  Fuel, ammunition & stores: 668 tons, 14.3 %
  Miscellaneous weights: 62 tons, 1.3 %

Overall survivability and seakeeping ability:
  Survivability (Non-critical penetrating hits needed to sink ship):
    2,926 lbs / 1,327 Kg = 28.4 x 5.9 " / 150 mm shells or 0.7 torpedoes
  Stability (Unstable if below 1.00): 1.12
  Metacentric height 1.7 ft / 0.5 m
  Roll period: 13.6 seconds
  Steadiness   - As gun platform (Average = 50 %): 70 %
        - Recoil effect (Restricted arc if above 1.00): 0.61
  Seaboat quality  (Average = 1.00): 1.06

Hull form characteristics:
  Hull has a flush deck
  Block coefficient: 0.498
  Length to Beam Ratio: 10.00 : 1
  'Natural speed' for length: 20.65 kts
  Power going to wave formation at top speed: 56 %
  Trim (Max stability = 0, Max steadiness = 100): 66
  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 %):   14.44 ft / 4.40 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:   14.43 ft / 4.40 m
  Ship tends to be wet forward

Ship space, strength and comments:
  Space   - Hull below water (magazines/engines, low = better): 130.7 %
     - Above water (accommodation/working, high = better): 101.5 %
  Waterplane Area: 12,096 Square feet or 1,124 Square metres
  Displacement factor (Displacement / loading): 98 %
  Structure weight / hull surface area: 76 lbs/sq ft or 370 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 adequate
  Ship has slow, easy roll, a good, steady gun platform

Short Range Radio 10 tons, Four (2x2) 17.7" Torpedoes 4 tons, 44 mines, 4 tons construction reserve

[Guinness]

With the success of mine layers in the Balkan War it was decided to build a modern fast ship to support the older Kiresund and Nejm Fishan Class which were much smaller and slower.  Also it was decided that more modern cruisers were needed to support the fleet.  The Hamadiye Class of 1910 had limited mine laying capability so it was decided to use that as a starting point.  At the same time because of post war economic disruptions a smaller design was needed.  Luckily new lighter weight machinery had become available, combined with the replacement of four 150mm guns with 75's and a slight shorter hull form a 9% reduction in size was possible.

The class are all named for Islands in the Aegean.

BK-17 Imbros, laid down  1914
BK-18 Semadirek, laid down  1914
BK-19 Kilimli, laid down  1914
BK-20 Sömbeki, laid down  1914

Ottoman minelayer cruiser laid down 1912

Displacement:
   3,625 t light; 3,775 t standard; 4,157 t normal; 4,463 t full load

Dimensions: Length overall / water x beam x draught
   341.21 ft / 341.21 ft x 42.65 ft x 18.04 ft (normal load)
   104.00 m / 104.00 m x 13.00 m  x 5.50 m

Armament:
     4 - 5.91" / 150 mm guns in single mounts, 102.98lbs / 46.71kg shells, 1912 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, evenly spread, 2 raised mounts - superfiring
     4 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1912 Model
     Breech loading guns in deck mounts
     on side, all amidships
     8 - 0.59" / 15.0 mm guns in single mounts, 0.10lbs / 0.05kg shells, 1912 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 464 lbs / 211 kg
   Shells per gun, main battery: 250
   4 - 17.7" / 450 mm above water torpedoes

Armour:
  - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2.95" / 75 mm   305.12 ft / 93.00 m   8.20 ft / 2.50 m
   Ends:   Unarmoured
     Main Belt covers 138 % of normal length

  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0.98" / 25 mm   0.39" / 10 mm      0.39" / 10 mm
   2nd:   0.39" / 10 mm         -               -

  - Armour deck: 0.98" / 25 mm

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 3 shafts, 35,351 shp / 26,372 Kw = 27.35 kts
   Range 6,000nm at 10.00 kts
   Bunker at max displacement = 688 tons (100% coal)

Complement:
   258 - 336

Cost:
   £0.392 million / $1.566 million

Distribution of weights at normal displacement:
   Armament: 58 tons, 1.4 %
   Armour: 496 tons, 11.9 %
      - Belts: 296 tons, 7.1 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 14 tons, 0.3 %
      - Armour Deck: 186 tons, 4.5 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 1,542 tons, 37.1 %
   Hull, fittings & equipment: 1,303 tons, 31.3 %
   Fuel, ammunition & stores: 532 tons, 12.8 %
   Miscellaneous weights: 225 tons, 5.4 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     2,641 lbs / 1,198 Kg = 25.6 x 5.9 " / 150 mm shells or 0.6 torpedoes
   Stability (Unstable if below 1.00): 1.22
   Metacentric height 2.0 ft / 0.6 m
   Roll period: 12.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 50 %
         - Recoil effect (Restricted arc if above 1.00): 0.35
   Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.554
   Length to Beam Ratio: 8.00 : 1
   'Natural speed' for length: 18.47 kts
   Power going to wave formation at top speed: 67 %
   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:      21.98 ft / 6.70 m
      - Forecastle (20 %):   19.69 ft / 6.00 m
      - Mid (63 %):      19.69 ft / 6.00 m (11.48 ft / 3.50 m aft of break)
      - Quarterdeck (15 %):   11.48 ft / 3.50 m
      - Stern:      11.48 ft / 3.50 m
      - Average freeboard:   16.83 ft / 5.13 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 137.5 %
      - Above water (accommodation/working, high = better): 110.1 %
   Waterplane Area: 10,195 Square feet or 947 Square metres
   Displacement factor (Displacement / loading): 97 %
   Structure weight / hull surface area: 69 lbs/sq ft or 337 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.88
      - Longitudinal: 3.13
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate

[Guinness]

BK-21 Seyat, laid down 1917
BK-22 Furat, laid down 1917

Seyat, Ottoman Cruiser laid down 1916

Displacement:
  7 250 t light; 7 568 t standard; 8 859 t normal; 9 891 t full load

Dimensions: Length overall / water x beam x draught
  541,34 ft / 541,34 ft x 55,77 ft x 20,96 ft (normal load)
  165,00 m / 165,00 m x 17,00 m  x 6,39 m

Armament:
     10 - 5,91" / 150 mm guns (5x2 guns), 99,21lbs / 45,00kg shells, 1916 Model
    Breech loading guns in deck mounts with hoists
    on centreline, evenly spread, 1 raised mount
     1 - 3,46" / 88,0 mm guns in single mounts, 19,84lbs / 9,00kg shells, 1916 Model
    Anti-aircraft gun in deck mount
    on side amidships, 1 raised gun
  Weight of broadside 1 012 lbs / 459 kg
  Shells per gun, main battery: 250
  4 - 17,7" / 450 mm above water torpedoes

Armour:
  - Belts:      Width (max)   Length (avg)      Height (avg)
  Main:   2,95" / 75 mm   410,11 ft / 125,00 m   11,48 ft / 3,50 m
  Ends:   Unarmoured
    Main Belt covers 117 % of normal length

  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
  Main:   2,95" / 75 mm   0,98" / 25 mm      1,97" / 50 mm

  - Armour deck: 1,38" / 35 mm, Conning tower: 4,92" / 125 mm

Machinery:
  Oil fired boilers, steam turbines,
  Geared drive, 4 shafts, 71 418 shp / 53 278 Kw = 31,00 kts
  Range 14 000nm at 12,00 kts
  Bunker at max displacement = 2 323 tons

Complement:
  456 - 593

Cost:
  £1,205 million / $4,821 million

Distribution of weights at normal displacement:
  Armament: 131 tons, 1,5 %
  Armour: 1 190 tons, 13,4 %
     - Belts: 566 tons, 6,4 %
     - Torpedo bulkhead: 0 tons, 0,0 %
     - Armament: 70 tons, 0,8 %
     - Armour Deck: 508 tons, 5,7 %
     - Conning Tower: 45 tons, 0,5 %
  Machinery: 2 661 tons, 30,0 %
  Hull, fittings & equipment: 2 917 tons, 32,9 %
  Fuel, ammunition & stores: 1 609 tons, 18,2 %
  Miscellaneous weights: 351 tons, 4,0 %

Overall survivability and seakeeping ability:
  Survivability (Non-critical penetrating hits needed to sink ship):
    7 557 lbs / 3 428 Kg = 73,4 x 5,9 " / 150 mm shells or 1,2 torpedoes
  Stability (Unstable if below 1.00): 1,14
  Metacentric height 2,7 ft / 0,8 m
  Roll period: 14,3 seconds
  Steadiness   - As gun platform (Average = 50 %): 71 %
        - Recoil effect (Restricted arc if above 1.00): 0,32
  Seaboat quality  (Average = 1.00): 1,02

Hull form characteristics:
  Hull has rise forward of midbreak
  Block coefficient: 0,490
  Length to Beam Ratio: 9,71 : 1
  'Natural speed' for length: 23,27 kts
  Power going to wave formation at top speed: 57 %
  Trim (Max stability = 0, Max steadiness = 100): 70
  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:      25,43 ft / 7,75 m
     - Forecastle (20 %):   18,86 ft / 5,75 m
     - Mid (69 %):      18,86 ft / 5,75 m (10,66 ft / 3,25 m aft of break)
     - Quarterdeck (15 %):   10,66 ft / 3,25 m
     - Stern:      10,66 ft / 3,25 m
     - Average freeboard:   16,85 ft / 5,14 m
  Ship tends to be wet forward

Ship space, strength and comments:
  Space   - Hull below water (magazines/engines, low = better): 114,0 %
     - Above water (accommodation/working, high = better): 131,2 %
  Waterplane Area: 19 936 Square feet or 1 852 Square metres
  Displacement factor (Displacement / loading): 112 %
  Structure weight / hull surface area: 90 lbs/sq ft or 441 Kg/sq metre
  Hull strength (Relative):
     - Cross-sectional: 0,97
     - Longitudinal: 1,29
     - Overall: 1,00
  Hull space for machinery, storage, compartmentation is cramped
  Room for accommodation and workspaces is excellent
  Ship has slow, easy roll, a good, steady gun platform

- 100 on FC
- 25 ton large radio
- 10 ton torpedos
- 15 ton extra fuel pumps and quarters
- 200 ton mines

8540nm @ 15kts
4250nm @ 20kts
1240nm @ 31kts