Yanshe-Class "Large Scout Cruiser" [1911] (Taishe)

Yanshe-Class, Taishe Dynasty Heavy Scout Cruiser laid down 1911

Displacement:
	10,003 t light; 10,800 t standard; 11,704 t normal; 12,427 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(488.85 ft / 475.72 ft) x 72.18 ft x (26.25 / 27.40 ft)
	(149.00 m / 145.00 m) x 22.00 m  x (8.00 / 8.35 m)

Armament:
      4 - 5.91" / 150 mm 47.0 cal guns - 107.12lbs / 48.59kg shells, 225 per gun
	  Quick firing guns in turret on barbette mounts, 1904 Model
	  2 x Twin mounts on centreline, evenly spread
      30 - 5.91" / 150 mm 47.0 cal guns - 107.12lbs / 48.59kg shells, 225 per gun
	  Quick firing guns in casemate mounts, 1904 Model
	  30 x Single mounts on sides, evenly spread
		14 hull mounts in casemates- Limited use in heavy seas
      8 - 5.91" / 150 mm 47.0 cal guns - 107.12lbs / 48.59kg shells, 225 per gun
	  Quick firing guns in casemate mounts, 1904 Model
	  8 x Single mounts on centreline, evenly spread
		4 raised mounts
      8 - 0.47" / 12.0 mm 60.0 cal guns - 0.06lbs / 0.03kg shells, 2,500 per gun
	  Anti-air guns in deck mounts, 1910 Model
	  8 x Single mounts on centreline, evenly spread
      Weight of broadside 4,500 lbs / 2,041 kg
      Main Torpedoes
      8 - 21.7" / 550 mm, 22.97 ft / 7.00 m torpedoes - 1.528 t each, 12.225 t total
	In 4 sets of deck mounted side rotating tubes

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	5.91" / 150 mm	309.22 ft / 94.25 m	10.20 ft / 3.11 m
	Ends:	3.94" / 100 mm	166.47 ft / 50.74 m	10.20 ft / 3.11 m
	Upper:	3.94" / 100 mm	309.22 ft / 94.25 m	8.01 ft / 2.44 m
	  Main Belt covers 100 % of normal length

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		2.95" / 75 mm	309.22 ft / 94.25 m	21.72 ft / 6.62 m
	Beam between torpedo bulkheads 55.77 ft / 17.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	5.91" / 150 mm	5.91" / 150 mm		5.91" / 150 mm
	2nd:	5.91" / 150 mm	1.97" / 50 mm		5.91" / 150 mm
	3rd:	5.91" / 150 mm	1.97" / 50 mm		5.91" / 150 mm

   - Armoured deck - multiple decks:
	For and Aft decks: 3.94" / 100 mm
	Forecastle: 3.94" / 100 mm  Quarter deck: 3.94" / 100 mm

   - Conning towers: Forward 9.84" / 250 mm, Aft 0.00" / 0 mm

Machinery:
	Oil fired boilers, steam turbines,
	Direct drive, 4 shafts, 45,541 shp / 33,973 Kw = 26.00 kts
	Range 10,000nm at 10.00 kts
	Bunker at max displacement = 1,627 tons

Complement:
	562 - 731

Cost:
	£0.852 million / $3.409 million

Distribution of weights at normal displacement:
	Armament: 852 tons, 7.3 %
	   - Guns: 828 tons, 7.1 %
	   - Weapons: 24 tons, 0.2 %
	Armour: 4,726 tons, 40.4 %
	   - Belts: 1,465 tons, 12.5 %
	   - Torpedo bulkhead: 734 tons, 6.3 %
	   - Armament: 804 tons, 6.9 %
	   - Armour Deck: 1,614 tons, 13.8 %
	   - Conning Tower: 109 tons, 0.9 %
	Machinery: 1,848 tons, 15.8 %
	Hull, fittings & equipment: 2,426 tons, 20.7 %
	Fuel, ammunition & stores: 1,701 tons, 14.5 %
	Miscellaneous weights: 150 tons, 1.3 %
	   - On freeboard deck: 50 tons
	   - Above deck: 100 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  18,186 lbs / 8,249 Kg = 176.6 x 5.9 " / 150 mm shells or 3.0 torpedoes
	Stability (Unstable if below 1.00): 1.48
	Metacentric height 6.0 ft / 1.8 m
	Roll period: 12.4 seconds
	Steadiness	- As gun platform (Average = 50 %): 63 %
			- Recoil effect (Restricted arc if above 1.00): 0.23
	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): 0.455 / 0.462
	Length to Beam Ratio: 6.59 : 1
	'Natural speed' for length: 21.81 kts
	Power going to wave formation at top speed: 56 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): -4.00 degrees
	Stern overhang: 6.56 ft / 2.00 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	20.00 %,  22.15 ft / 6.75 m,  18.86 ft / 5.75 m
	   - Forward deck:	30.00 %,  18.86 ft / 5.75 m,  16.40 ft / 5.00 m
	   - Aft deck:	35.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
	   - Quarter deck:	15.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
	   - Average freeboard:		17.53 ft / 5.34 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 96.4 %
		- Above water (accommodation/working, high = better): 123.7 %
	Waterplane Area: 21,984 Square feet or 2,042 Square metres
	Displacement factor (Displacement / loading): 107 %
	Structure weight / hull surface area: 110 lbs/sq ft or 536 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.92
		- Longitudinal: 2.11
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Excellent accommodation and workspace room
	Good seaboat, rides out heavy weather easily