Ottoman Empire Coast Defense ship competition

[Guinness]

The Ottomans wish to replace the oldest ships in their battleline, and possibly some other old junk, with a new class or type of coast defense ship. They are of an open mind about what exactly that means.

The general attributes they are looking for:

1. Economy matters here
2. Enough punch to make the enemy think twice about tangling with them, especially if in a group, or supported by coastal artillery.
3. Adequate protection against enemy torpedo craft.
4. Enough armor protection to give them a chance in a fight.
5. Speed and range aren't all that important.
Bonus: The ability to support small numbers of 200t torpedo boats in pinch.
Bonus: Shallow enough draft to be able to lurk in shallow water, etc.

Other than that, the Ottomans are open to just about any idea. If you wish to participate, please post designs here. As noted in the news post, the Ottomans would like to construct at least the lead ship in this class in a foreign yard, but for the right design could build it at home. Some sort of multinational compact might be possible as well, where one nation's design is built by a third party.

There is an updated list of Ottoman naval artillery in the encyclopedia.

[maddox]

Muhamed, Ottoman Coastal Battleship laid down 1920 (Engine 1916)

Displacement:
   12.500 t light; 13.205 t standard; 13.902 t normal; 14.460 t full load

Dimensions: Length overall / water x beam x draught
   492,13 ft / 492,13 ft x 65,62 ft (Bulges 82,02 ft) x 16,40 ft (normal load)
   150,00 m / 150,00 m x 20,00 m (Bulges 25,00 m)  x 5,00 m

Armament:
      6 - 10,83" / 275 mm guns (2x3 guns), 705,48lbs / 320,00kg shells, 1914 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread
      8 - 5,51" / 140 mm guns (4x2 guns), 92,59lbs / 42,00kg shells, 1914 Model
     Quick firing guns in deck mounts with hoists
     on side, all amidships, all raised mounts - superfiring
      4 - 1,46" / 37,0 mm guns in single mounts, 1,55lbs / 0,70kg shells, 1920 Model
     Breech loading guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 4.980 lbs / 2.259 kg
   Shells per gun, main battery: 150

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12,0" / 305 mm   319,88 ft / 97,50 m   12,00 ft / 3,66 m
   Ends:   Unarmoured
   Upper:   5,00" / 127 mm   319,88 ft / 97,50 m   8,00 ft / 2,44 m
     Main Belt covers 100% of normal length

   - Torpedo Bulkhead and Bulges:
      2,00" / 51 mm   319,88 ft / 97,50 m   17,00 ft / 5,18 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   12,0" / 305 mm   7,00" / 178 mm      12,0" / 305 mm
   2nd:   2,00" / 51 mm   1,00" / 25 mm      3,00" / 76 mm
   3rd:   0,50" / 13 mm   0,50" / 13 mm            -

   - Armour deck: 3,00" / 76 mm, Conning tower: 10,00" / 254 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 21.032 shp / 15.690 Kw = 20,00 kts
   Range 3.000nm at 14,00 kts
   Bunker at max displacement = 1.255 tons (50% coal)

Complement:
   639 - 832

Cost:
   £2,418 million / $9,674 million

Distribution of weights at normal displacement:
   Armament: 560 tons, 4,0%
   Armour: 5.423 tons, 39,0%
      - Belts: 2.547 tons, 18,3%
      - Torpedo bulkhead: 402 tons, 2,9%
      - Armament: 867 tons, 6,2%
      - Armour Deck: 1.481 tons, 10,7%
      - Conning Tower: 125 tons, 0,9%
   Machinery: 821 tons, 5,9%
   Hull, fittings & equipment: 4.921 tons, 35,4%
   Fuel, ammunition & stores: 1.402 tons, 10,1%
   Miscellaneous weights: 775 tons, 5,6%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     23.315 lbs / 10.575 Kg = 36,7 x 10,8 " / 275 mm shells or 5,4 torpedoes
   Stability (Unstable if below 1.00): 1,21
   Metacentric height 3,8 ft / 1,2 m
   Roll period: 17,7 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,32
   Seaboat quality  (Average = 1.00): 1,15

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,735
   Length to Beam Ratio: 6,00 : 1
   'Natural speed' for length: 22,18 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 62
   Bow angle (Positive = bow angles forward): -8,00 degrees
   Stern overhang: -6,56 ft / -2,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      21,33 ft / 6,50 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:   14,38 ft / 4,38 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 82,9%
      - Above water (accommodation/working, high = better): 109,6%
   Waterplane Area: 26.691 Square feet or 2.480 Square metres
   Displacement factor (Displacement / loading): 113%
   Structure weight / hull surface area: 131 lbs/sq ft or 639 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1,00
      - Longitudinal: 1,00
      - 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

250 ton FC
25 ton long long range marconi
500 ton means for resupplying escorting DD's.

[Guinness]

Interesting. Do you mind simming it with the Ottoman's 28cm gun and 15cm secondaries?:

Size	Caliber	Shell Weight	RoF (rpm)	Available Mounts	Year Developed	Notes
305mm	45	405.5kg	2-3	Single, Twin	1918	OTL UK 12" Mark X
280mm	45	302kg	2	Single, Twin	1910	OTL German 28cmL45
250mm	45	216.25kg	1.5	Single, Twin	1900
150mm	45	45.3kg	5	Single	1900	OTL German 15cmL45 (From the Dutch)
120mm	45	22.68kg	6	Single	1909	OTL British 4.7"L45 BL Mark 1 (From the Dutch)
105mm	45	17.4kg	15	Single	1900	OTL German 105mmL45
75mm	50	4.9kg	12-15	Single	1888	OTL Russian 75mmL50 Model 1892
57mm	40	2.72kg	18	Single	1884	OTL Hotchkiss 6 pounder
47mm	40	1.5kg	20	Single*	1885	OTL Hotchkiss 3 pounder (* Fielded in both single barrel and 5 barrel revolver cannon)
37mm	35,40,45	0.48kg	25	Single	1885	OTL Hotchkiss 1 pounder
15mm		0.08kg	200	Single	1880	Machine Gun
13mm		0.05kg	500	Single	1920	OTL Browning 0.50" machine gun

[maddox]

Sleightly adapted, so it's more French, and the tumblerhome is getting very pronounced now.

Muhammed, Ottomans Coastal Battleship laid down 1920 (Engine 1916)

Displacement:
   12.500 t light; 13.247 t standard; 14.077 t normal; 14.741 t full load

Dimensions: Length overall / water x beam x draught
   492,13 ft / 492,13 ft x 65,62 ft (Bulges 82,02 ft) x 16,40 ft (normal load)
   150,00 m / 150,00 m x 20,00 m (Bulges 25,00 m)  x 5,00 m

Armament:
      6 - 11,02" / 280 mm guns (2x3 guns), 665,80lbs / 302,00kg shells, 1910 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread
      16 - 5,51" / 140 mm guns (8x2 guns), 83,72lbs / 37,98kg shells, 1914 Model
     Quick firing guns in deck mounts with hoists
     on side, all amidships, 4 raised mounts - superfiring
      4 - 1,46" / 37,0 mm guns in single mounts, 1,55lbs / 0,70kg shells, 1914 Model
     Breech loading guns in deck mounts
     on centreline, evenly spread, all raised mounts
   Weight of broadside 5.341 lbs / 2.422 kg
   Shells per gun, main battery: 150

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   11,0" / 279 mm   334,65 ft / 102,00 m   10,00 ft / 3,05 m
   Ends:   Unarmoured
   Upper:   4,00" / 102 mm   334,65 ft / 102,00 m   8,00 ft / 2,44 m
     Main Belt covers 105% of normal length

   - Torpedo Bulkhead and Bulges:
      2,00" / 51 mm   334,65 ft / 102,00 m   16,08 ft / 4,90 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   10,0" / 254 mm   7,00" / 178 mm      10,0" / 254 mm
   2nd:   2,00" / 51 mm   1,00" / 25 mm      3,00" / 76 mm
   3rd:   0,50" / 13 mm   0,50" / 13 mm            -

   - Armour deck: 3,00" / 76 mm, Conning tower: 10,00" / 254 mm

Machinery:
   Coal and oil fired boilers, reciprocating cruising steam engines plus steam turbines,
   Direct drive, 2 shafts, 21.272 ihp / 15.869 Kw = 20,00 kts
   Range 3.000nm at 14,00 kts
   Bunker at max displacement = 1.494 tons (50% coal)

Complement:
   646 - 840

Cost:
   £2,800 million / $11,200 million

Distribution of weights at normal displacement:
   Armament: 671 tons, 4,8%
   Armour: 4.931 tons, 35,0%
      - Belts: 2.039 tons, 14,5%
      - Torpedo bulkhead: 398 tons, 2,8%
      - Armament: 875 tons, 6,2%
      - Armour Deck: 1.493 tons, 10,6%
      - Conning Tower: 126 tons, 0,9%
   Machinery: 1.313 tons, 9,3%
   Hull, fittings & equipment: 5.135 tons, 36,5%
   Fuel, ammunition & stores: 1.577 tons, 11,2%
   Miscellaneous weights: 450 tons, 3,2%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     20.440 lbs / 9.272 Kg = 30,5 x 11,0 " / 280 mm shells or 4,1 torpedoes
   Stability (Unstable if below 1.00): 1,26
   Metacentric height 4,0 ft / 1,2 m
   Roll period: 17,2 seconds
   Steadiness   - As gun platform (Average = 50 %): 72 %
         - Recoil effect (Restricted arc if above 1.00): 0,37
   Seaboat quality  (Average = 1.00): 1,24

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,744
   Length to Beam Ratio: 6,00 : 1
   'Natural speed' for length: 22,18 kts
   Power going to wave formation at top speed: 46 %
   Trim (Max stability = 0, Max steadiness = 100): 58
   Bow angle (Positive = bow angles forward): -10,00 degrees
   Stern overhang: -6,56 ft / -2,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      22,97 ft / 7,00 m
      - Forecastle (16%):   15,52 ft / 4,73 m
      - Mid (50%):      15,52 ft / 4,73 m
      - Quarterdeck (16%):   15,52 ft / 4,73 m
      - Stern:      15,52 ft / 4,73 m
      - Average freeboard:   16,00 ft / 4,88 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 102,5%
      - Above water (accommodation/working, high = better): 123,1%
   Waterplane Area: 26.907 Square feet or 2.500 Square metres
   Displacement factor (Displacement / loading): 105%
   Structure weight / hull surface area: 133 lbs/sq ft or 650 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,99
      - Longitudinal: 1,09
      - 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

[Kaiser Kirk]

The internal beam is just shy of the 20.5m Jefgte came up with for Admiral Sheer, and when you figure an addition 3-4m on each side to accomodate the torpedo defenses, you will be down to a 12-14m internal beam, not adequate for triple 275mm guns.

[Jefgte]

NUS shipyards are going to laid down the famous 200t CTB.

Some more could be add to complet the Ottomans islands protection...




Jef  ;)

[Desertfox]

Designed for precisely that purpose:

http://www.navalism.org/index.php?topic=3348.0

Question is what size main guns would you like?

[Jefgte]

Other project from NUS...



Uploaded with ImageShack.us


Jef  ;)

[ledeper]

An in kick from Designbureau Hamburg:

Enter ship name, Enter country Enter ship type laid down 1919 (Engine 1916)

Displacement:
   16.534 t light; 17.621 t standard; 19.182 t normal; 20.431 t full load

Dimensions: Length overall / water x beam x draught
   557,60 ft / 554,13 ft x 82,02 ft (Bulges 91,86 ft) x 19,69 ft (normal load)
   169,96 m / 168,90 m x 25,00 m (Bulges 28,00 m)  x 6,00 m

Armament:
      9 - 12,01" / 305 mm guns (3x3 guns), 865,70lbs / 392,68kg shells, 1919 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, evenly spread
     Aft Main mounts separated by engine room
      10 - 4,72" / 120 mm guns in single mounts, 52,72lbs / 23,92kg shells, 1919 Model
     Quick firing guns in deck mounts
     on side, all amidships
      4 - 1,57" / 40,0 mm guns (3 mounts), 1,95lbs / 0,89kg shells, 1919 Model
     Breech loading guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 8.326 lbs / 3.777 kg
   Shells per gun, main battery: 150

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   9,84" / 250 mm   284,38 ft / 86,68 m   13,12 ft / 4,00 m
   Ends:   Unarmoured
   Upper:   5,91" / 150 mm   284,38 ft / 86,68 m   8,01 ft / 2,44 m
     Main Belt covers 79 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   9,84" / 250 mm   5,91" / 150 mm      9,84" / 250 mm
   2nd:   1,97" / 50 mm   0,79" / 20 mm            -
   3rd:   0,39" / 10 mm         -               -

   - Armour deck: 3,94" / 100 mm, Conning tower: 9,84" / 250 mm

Machinery:
   Coal fired boilers, steam turbines,
   Direct drive, 3 shafts, 34.400 shp / 25.662 Kw = 22,00 kts
   Range 5.000nm at 14,00 kts
   Bunker at max displacement = 2.810 tons (100% coal)

Complement:
   814 - 1.059

Cost:
   £3,601 million / $14,403 million

Distribution of weights at normal displacement:
   Armament: 1.041 tons, 5,4 %
   Armour: 6.364 tons, 33,2 %
      - Belts: 2.314 tons, 12,1 %
      - Torpedo bulkhead: 0 tons, 0,0 %
      - Armament: 1.316 tons, 6,9 %
      - Armour Deck: 2.583 tons, 13,5 %
      - Conning Tower: 152 tons, 0,8 %
   Machinery: 1.410 tons, 7,3 %
   Hull, fittings & equipment: 7.219 tons, 37,6 %
   Fuel, ammunition & stores: 2.648 tons, 13,8 %
   Miscellaneous weights: 500 tons, 2,6 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     28.767 lbs / 13.049 Kg = 33,2 x 12,0 " / 305 mm shells or 3,6 torpedoes
   Stability (Unstable if below 1.00): 1,24
   Metacentric height 5,5 ft / 1,7 m
   Roll period: 16,5 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,38
   Seaboat quality  (Average = 1.00): 1,18

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,670
   Length to Beam Ratio: 6,03 : 1
   'Natural speed' for length: 23,54 kts
   Power going to wave formation at top speed: 48 %
   Trim (Max stability = 0, Max steadiness = 100): 59
   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:      19,69 ft / 6,00 m
      - Forecastle (10 %):   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:   16,54 ft / 5,04 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 69,2 %
      - Above water (accommodation/working, high = better): 136,1 %
   Waterplane Area: 35.459 Square feet or 3.294 Square metres
   Displacement factor (Displacement / loading): 107 %
   Structure weight / hull surface area: 152 lbs/sq ft or 742 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,99
      - Longitudinal: 1,17
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform

Price:$ 48
;) ;)

[P3D]

Maddox, as per my posts on the other thread, tumblehome cannot be simulated with bulges. This one will have an internal belt and a reduced beam armor deck. Which might not be a good idea, you'd have a significant portion of your buoyancy unprotected.

[Guinness]

The Ottomans already have a 200t TB design. I haven't published the final version of it yet. The art has been sitting 95% done for months... Maybe sometime this weekend I can crank that out. That ship has 1x75mm, 2x6-pounders, and twin 21" TTs with 28.5 knots (SS speed), 34 knots (trial speed).

Gun: The Ottomans have a 28cm and 30.5cm (true 12") gun available now, and a 21cm in development which would be ready for production at the end of 1920. Any or all of these might be acceptable armaments, but one of the ideas in this exercise is to see what other armament combinations might be valuable. For instance, would a ship armed with 2 38cm be worthwhile? What about a ship with just a bunch of 150mm? That sort of question.

There's been some innovative stuff around here for "niche" roles, I'm sort of hoping this might prove an exciting challenge for someone.

[Guinness]

Ledeper: that might be a bit on the big side. It's more or less a full fledged BB in all but speed...

Also all: there's no reason for this ship to be coal fired. The OE has converted to full oil firing in recent new designs.

[The Rock Doctor]

If I weren't good friends with some of the folks most likely to encounter said coastal defence ship, I'd submit that "gunship" with 2x3 12" that I was contemplating a little while back.

[maddox]

Still with tumblehome....

Muhammed, Ottoman Coastal Battleship laid down 1920 (Engine 1916)

Displacement:
   14.000 t light; 14.795 t standard; 15.752 t normal; 16.518 t full load

Dimensions: Length overall / water x beam x draught
   524,93 ft / 524,93 ft x 82,02 ft x 16,40 ft (normal load)
   160,00 m / 160,00 m x 25,00 m  x 5,00 m

Armament:
      6 - 11,02" / 280 mm guns (2x3 guns), 665,80lbs / 302,00kg shells, 1920 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread
      16 - 5,51" / 140 mm guns (8x2 guns), 92,59lbs / 42,00kg shells, 1920 Model
     Quick firing guns in deck mounts with hoists
     on side, all amidships, 4 raised mounts - superfiring
      4 - 1,46" / 37,0 mm guns in single mounts, 1,55lbs / 0,70kg shells, 1920 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 5.482 lbs / 2.487 kg
   Shells per gun, main battery: 150

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   12,0" / 305 mm   335,96 ft / 102,40 m   12,00 ft / 3,66 m
   Ends:   Unarmoured
   Upper:   5,00" / 127 mm   335,96 ft / 102,40 m   8,00 ft / 2,44 m
     Main Belt covers 98% of normal length

   - Torpedo Bulkhead:
      2,00" / 51 mm   335,96 ft / 102,40 m   16,16 ft / 4,93 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   12,0" / 305 mm   8,00" / 203 mm      12,0" / 305 mm
   2nd:   2,00" / 51 mm   1,00" / 25 mm      3,00" / 76 mm
   3rd:   0,50" / 13 mm   0,50" / 13 mm            -

   - Armour deck: 3,00" / 76 mm, Conning tower: 10,00" / 254 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 22.571 shp / 16.838 Kw = 20,00 kts
   Range 4.500nm at 14,00 kts
   Bunker at max displacement = 1.723 tons

Complement:
   702 - 913

Cost:
   £2,768 million / $11,071 million

Distribution of weights at normal displacement:
   Armament: 671 tons, 4,3%
   Armour: 6.316 tons, 40,1%
      - Belts: 2.742 tons, 17,4%
      - Torpedo bulkhead: 402 tons, 2,6%
      - Armament: 982 tons, 6,2%
      - Armour Deck: 2.054 tons, 13,0%
      - Conning Tower: 135 tons, 0,9%
   Machinery: 841 tons, 5,3%
   Hull, fittings & equipment: 5.873 tons, 37,3%
   Fuel, ammunition & stores: 1.752 tons, 11,1%
   Miscellaneous weights: 300 tons, 1,9%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     32.529 lbs / 14.755 Kg = 48,6 x 11,0 " / 280 mm shells or 6,8 torpedoes
   Stability (Unstable if below 1.00): 1,26
   Metacentric height 5,6 ft / 1,7 m
   Roll period: 14,5 seconds
   Steadiness   - As gun platform (Average = 50 %): 71 %
         - Recoil effect (Restricted arc if above 1.00): 0,34
   Seaboat quality  (Average = 1.00): 1,21

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0,781
   Length to Beam Ratio: 6,40 : 1
   'Natural speed' for length: 22,91 kts
   Power going to wave formation at top speed: 44 %
   Trim (Max stability = 0, Max steadiness = 100): 59
   Bow angle (Positive = bow angles forward): -8,00 degrees
   Stern overhang: -6,56 ft / -2,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      25,20 ft / 7,68 m
      - Forecastle (18%):   14,44 ft / 4,40 m
      - Mid (50%):      14,44 ft / 4,40 m
      - Quarterdeck (18%):   14,44 ft / 4,40 m
      - Stern:      14,44 ft / 4,40 m
      - Average freeboard:   15,21 ft / 4,64 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 70,6%
      - Above water (accommodation/working, high = better): 145,0%
   Waterplane Area: 37.017 Square feet or 3.439 Square metres
   Displacement factor (Displacement / loading): 115%
   Structure weight / hull surface area: 130 lbs/sq ft or 634 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 1,01
      - Longitudinal: 1,00
      - Overall: 1,00
   Hull space for machinery, storage, compartmentation is excellent
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[Guinness]

An In-House Ottoman design. Yes, that's a quad turret which the Ottomans do not have the tech for. Yes, that sucker is mounted smack in the middle of the ship. I figure that on 120m, it could have something like 150 degree clear arcs on either beam, depending on how the funnel is arranged and superstructure, etc. Maybe even more.

Ottoman Coast Defense Ship, Ottoman Empire Coast Defense Ship laid down 1920 (Engine 1916)

Displacement:
   8,500 t light; 9,066 t standard; 9,499 t normal; 9,846 t full load

Dimensions: Length overall / water x beam x draught
   393.70 ft / 393.70 ft x 78.74 ft x 16.40 ft (normal load)
   120.00 m / 120.00 m x 24.00 m  x 5.00 m

Armament:
      4 - 12.01" / 305 mm guns (1x4 guns), 893.97lbs / 405.50kg shells, 1920 Model
     Breech loading guns in a turret (on a barbette)
     on centreline amidships, all raised guns - superfiring
      8 - 5.91" / 150 mm guns (4x2 guns), 99.87lbs / 45.30kg shells, 1920 Model
     Breech loading guns in turrets (on barbettes)
     on centreline ends, evenly spread, 2 raised mounts - superfiring
      20 - 0.51" / 13.0 mm guns in single mounts, 0.07lbs / 0.03kg shells, 1920 Model
     Breech loading guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 4,376 lbs / 1,985 kg
   Shells per gun, main battery: 150

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   8.66" / 220 mm   218.18 ft / 66.50 m   11.81 ft / 3.60 m
   Ends:   Unarmoured
     Main Belt covers 85 % of normal length

   - Torpedo Bulkhead:
      1.57" / 40 mm   218.18 ft / 66.50 m   20.67 ft / 6.30 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   9.84" / 250 mm   4.72" / 120 mm      7.87" / 200 mm
   2nd:   4.72" / 120 mm   3.94" / 100 mm      4.72" / 120 mm

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

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 11,700 shp / 8,728 Kw = 18.03 kts
   Range 4,000nm at 12.00 kts
   Bunker at max displacement = 780 tons

Complement:
   480 - 625

Cost:
   £1.912 million / $7.646 million

Distribution of weights at normal displacement:
   Armament: 536 tons, 5.6 %
   Armour: 2,921 tons, 30.8 %
      - Belts: 1,059 tons, 11.1 %
      - Torpedo bulkhead: 263 tons, 2.8 %
      - Armament: 637 tons, 6.7 %
      - Armour Deck: 868 tons, 9.1 %
      - Conning Tower: 95 tons, 1.0 %
   Machinery: 436 tons, 4.6 %
   Hull, fittings & equipment: 4,257 tons, 44.8 %
   Fuel, ammunition & stores: 1,000 tons, 10.5 %
   Miscellaneous weights: 350 tons, 3.7 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     14,770 lbs / 6,700 Kg = 17.1 x 12.0 " / 305 mm shells or 3.8 torpedoes
   Stability (Unstable if below 1.00): 1.17
   Metacentric height 4.7 ft / 1.4 m
   Roll period: 15.3 seconds
   Steadiness   - As gun platform (Average = 50 %): 59 %
         - Recoil effect (Restricted arc if above 1.00): 0.35
   Seaboat quality  (Average = 1.00): 1.02

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0.654
   Length to Beam Ratio: 5.00 : 1
   'Natural speed' for length: 19.84 kts
   Power going to wave formation at top speed: 48 %
   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:      15.75 ft / 4.80 m
      - Forecastle (10 %):   15.75 ft / 4.80 m
      - Mid (48 %):      15.75 ft / 4.80 m (7.87 ft / 2.40 m aft of break)
      - Quarterdeck (10 %):   7.87 ft / 2.40 m
      - Stern:      7.87 ft / 2.40 m
      - Average freeboard:   11.65 ft / 3.55 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 84.9 %
      - Above water (accommodation/working, high = better): 109.8 %
   Waterplane Area: 23,831 Square feet or 2,214 Square metres
   Displacement factor (Displacement / loading): 113 %
   Structure weight / hull surface area: 148 lbs/sq ft or 725 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.94
      - Longitudinal: 1.60
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is adequate

Misc Weight:
250t fire control
100t rudimentary tender and flag facilities