Shu Yen-Class Heavy Cruiser (1932) (Taishe)

Shu Yen-Class, Taishe Dynasty Heavy Cruiser laid down 1932

Displacement:
	7,991 t light; 8,400 t standard; 9,206 t normal; 9,851 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(463.73 ft / 459.32 ft) x 65.62 ft x (22.97 / 24.08 ft)
	(141.35 m / 140.00 m) x 20.00 m  x (7.00 / 7.34 m)

Armament:
      9 - 8.27" / 210 mm 47.0 cal guns - 297.62lbs / 135.00kg shells, 125 per gun
	  Breech loading guns in deck and hoist mounts, 1924 Model
	  3 x Triple mounts on centreline ends, majority forward
		1 raised mount - superfiring
      12 - 3.15" / 80.0 mm 60.0 cal guns - 17.11lbs / 7.76kg shells, 300 per gun
	  Quick firing guns in deck and hoist mounts, 1924 Model
	  6 x Twin mounts on sides, evenly spread
      16 - 0.79" / 20.0 mm 75.0 cal guns - 0.29lbs / 0.13kg shells, 1,500 per gun
	  Anti-air guns in deck mounts, 1934 Model
	  4 x 2 row quad mounts on sides, evenly spread
      Weight of broadside 2,888 lbs / 1,310 kg
      Main Torpedoes
      12 - 23.6" / 600 mm, 16.40 ft / 5.00 m torpedoes - 1.396 t each, 16.747 t total
	In 4 sets of deck mounted side rotating tubes

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	7.87" / 200 mm	275.59 ft / 84.00 m	9.71 ft / 2.96 m
	Ends:	2.95" / 75 mm	183.69 ft / 55.99 m	9.71 ft / 2.96 m
	  Main Belt covers 92 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
		1.97" / 50 mm	298.56 ft / 91.00 m	19.29 ft / 5.88 m
	Beam between torpedo bulkheads 49.21 ft / 15.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	7.87" / 200 mm	5.91" / 150 mm		5.91" / 150 mm
	2nd:	1.97" / 50 mm	0.98" / 25 mm		0.98" / 25 mm
	3rd:	0.49" / 13 mm	      -			      -

   - Armoured deck - multiple decks:
	For and Aft decks: 1.97" / 50 mm
	Forecastle: 1.97" / 50 mm  Quarter deck: 1.97" / 50 mm

   - Conning towers: Forward 7.87" / 200 mm, Aft 0.00" / 0 mm

Machinery:
	Oil fired boilers, steam turbines,
	Electric cruising motors plus geared drives, 4 shafts, 36,866 shp / 27,502 Kw = 26.67 kts
	Range 10,000nm at 12.00 kts
	Bunker at max displacement = 1,452 tons

Complement:
	469 - 610

Cost:
	£3.269 million / $13.077 million

Distribution of weights at normal displacement:
	Armament: 677 tons, 7.4 %
	   - Guns: 643 tons, 7.0 %
	   - Weapons: 33 tons, 0.4 %
	Armour: 2,641 tons, 28.7 %
	   - Belts: 1,112 tons, 12.1 %
	   - Torpedo bulkhead: 419 tons, 4.6 %
	   - Armament: 291 tons, 3.2 %
	   - Armour Deck: 743 tons, 8.1 %
	   - Conning Tower: 75 tons, 0.8 %
	Machinery: 1,088 tons, 11.8 %
	Hull, fittings & equipment: 3,436 tons, 37.3 %
	Fuel, ammunition & stores: 1,215 tons, 13.2 %
	Miscellaneous weights: 150 tons, 1.6 %
	   - Hull below water: 100 tons
	   - Above deck: 50 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  15,894 lbs / 7,209 Kg = 56.2 x 8.3 " / 210 mm shells or 3.0 torpedoes
	Stability (Unstable if below 1.00): 1.17
	Metacentric height 3.5 ft / 1.1 m
	Roll period: 14.6 seconds
	Steadiness	- As gun platform (Average = 50 %): 60 %
			- Recoil effect (Restricted arc if above 1.00): 0.60
	Seaboat quality  (Average = 1.00): 1.21

Hull form characteristics:
	Hull has a flush deck,
	  a straight bulbous bow and large transom stern
	Block coefficient (normal/deep): 0.466 / 0.475
	Length to Beam Ratio: 7.00 : 1
	'Natural speed' for length: 25.33 kts
	Power going to wave formation at top speed: 57 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 9.00 degrees
	Stern overhang: 0.00 ft / 0.00 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	20.00 %,  27.89 ft / 8.50 m,  22.97 ft / 7.00 m
	   - Forward deck:	30.00 %,  22.97 ft / 7.00 m,  18.04 ft / 5.50 m
	   - Aft deck:	35.00 %,  18.04 ft / 5.50 m,  18.04 ft / 5.50 m
	   - Quarter deck:	15.00 %,  18.04 ft / 5.50 m,  18.04 ft / 5.50 m
	   - Average freeboard:		20.16 ft / 6.15 m

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 91.8 %
		- Above water (accommodation/working, high = better): 155.3 %
	Waterplane Area: 20,238 Square feet or 1,880 Square metres
	Displacement factor (Displacement / loading): 120 %
	Structure weight / hull surface area: 118 lbs/sq ft or 578 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.90
		- Longitudinal: 2.50
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Excellent accommodation and workspace room
	Good seaboat, rides out heavy weather easily

==========================================================
Made using Carb's Light Cruiser Calculator; actual speed is 30 knots.