Ticaragangan Irdad-Class Protected Cruiser [1887] (Kavafid)

Ticaragangan Irdad (Commerce of Irdad)-Class, Kavafid Dynasty Protected Cruiser laid down 1887

Displacement:
	3,761 t light; 3,955 t standard; 5,884 t normal; 7,428 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(370.73 ft / 360.89 ft) x 45.93 ft x (22.97 / 27.68 ft)
	(113.00 m / 110.00 m) x 14.00 m  x (7.00 / 8.44 m)

Armament:
      2 - 8.86" / 225 mm 35.0 cal guns - 318.46lbs / 144.45kg shells, 80 per gun
	  Breech loading guns in deck and hoist mounts, 1887 Model
	  2 x Single mounts on centreline, evenly spread
      6 - 4.72" / 120 mm 37.0 cal guns - 47.54lbs / 21.56kg shells, 300 per gun
	  Quick firing guns in deck mounts, 1884 Model
	  6 x Single mounts on sides, evenly spread
      16 - 0.49" / 12.5 mm 90.0 cal guns - 0.07lbs / 0.03kg shells, 500 per gun
	  Quick firing guns in deck mounts, 1886 Model
	  4 x Quad mounts on sides, evenly spread
      Weight of broadside 923 lbs / 419 kg
      Main Torpedoes
      2 - 14.2" / 360 mm, 13.12 ft / 4.00 m torpedoes - 0.184 t each, 0.369 t total
	submerged bow & stern tubes
      2nd Torpedoes
      8 - 14.2" / 360 mm, 13.12 ft / 4.00 m torpedoes - 0.184 t each, 1.475 t total
	below water reloads

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Ends:	Unarmoured

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		1.18" / 30 mm	360.89 ft / 110.00 m	21.10 ft / 6.43 m
	Beam between torpedo bulkheads 45.93 ft / 14.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	7.87" / 200 mm	3.94" / 100 mm		5.91" / 150 mm
	2nd:	2.95" / 75 mm	      -			      -
	3rd:	0.49" / 13 mm	      -			      -

   - Protected deck - single deck:
	For and Aft decks: 1.97" / 50 mm
	Forecastle: 1.97" / 50 mm  Quarter deck: 1.97" / 50 mm

   - Conning towers: Forward 4.72" / 120 mm, Aft 0.00" / 0 mm

Machinery:
	Coal fired boilers, complex reciprocating steam engines,
	Direct drive, 2 shafts, 8,160 ihp / 6,088 Kw = 18.00 kts
	Range 10,000nm at 12.00 kts
	Bunker at max displacement = 3,474 tons (100% coal)

Complement:
	335 - 436

Cost:
	£0.407 million / $1.629 million

Distribution of weights at normal displacement:
	Armament: 173 tons, 2.9 %
	   - Guns: 171 tons, 2.9 %
	   - Weapons: 3 tons, 0.0 %
	Armour: 937 tons, 15.9 %
	   - Torpedo bulkhead: 333 tons, 5.7 %
	   - Armament: 150 tons, 2.5 %
	   - Armour Deck: 421 tons, 7.2 %
	   - Conning Tower: 33 tons, 0.6 %
	Machinery: 1,553 tons, 26.4 %
	Hull, fittings & equipment: 1,097 tons, 18.6 %
	Fuel, ammunition & stores: 2,124 tons, 36.1 %
	Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  5,531 lbs / 2,509 Kg = 16.7 x 8.9 " / 225 mm shells or 8.7 torpedoes
	Stability (Unstable if below 1.00): 1.66
	Metacentric height 3.6 ft / 1.1 m
	Roll period: 10.2 seconds
	Steadiness	- As gun platform (Average = 50 %): 64 %
			- Recoil effect (Restricted arc if above 1.00): 0.16
	Seaboat quality  (Average = 1.00): 1.27

Hull form characteristics:
	Hull has a flush deck,
	  a ram bow and a cruiser stern
	Block coefficient (normal/deep): 0.541 / 0.567
	Length to Beam Ratio: 7.86 : 1
	'Natural speed' for length: 19.00 kts
	Power going to wave formation at top speed: 44 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): -15.00 degrees
	Stern overhang: 3.28 ft / 1.00 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	20.00 %,  11.48 ft / 3.50 m,  9.84 ft / 3.00 m
	   - Forward deck:	30.00 %,  9.84 ft / 3.00 m,  8.20 ft / 2.50 m
	   - Aft deck:	35.00 %,  8.20 ft / 2.50 m,  8.20 ft / 2.50 m
	   - Quarter deck:	15.00 %,  8.20 ft / 2.50 m,  8.20 ft / 2.50 m
	   - Average freeboard:		8.91 ft / 2.72 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 96.3 %
		- Above water (accommodation/working, high = better): 56.0 %
	Waterplane Area: 11,471 Square feet or 1,066 Square metres
	Displacement factor (Displacement / loading): 128 %
	Structure weight / hull surface area: 84 lbs/sq ft or 409 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.96
		- Longitudinal: 1.43
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Cramped accommodation and workspace room
	Good seaboat, rides out heavy weather easily