1937 RoCN CL Hangzhou

Hangzhou, Republic of China Light Cruiser laid down 1937

Displacement:
	4,263 t light; 4,500 t standard; 5,000 t normal; 5,401 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(541.80 ft / 524.93 ft) x 45.93 ft x (15.75 / 16.65 ft)
	(165.14 m / 160.00 m) x 14.00 m  x (4.80 / 5.08 m)

Armament:
      9 - 5.87" / 149 mm 57.5 cal guns - 100.31lbs / 45.50kg shells, 240 per gun
	  Breech loading guns in deck and hoist mounts, 1928 Model
	  1 x 3-gun mount on centreline, aft deck centre
	  2 x 3-gun mounts on centreline, forward evenly spread
      4 - 3.46" / 88.0 mm 72.0 cal guns - 19.84lbs / 9.00kg shells, 300 per gun
	  Anti-air guns in deck mounts, 1937 Model
	  2 x Twin mounts on centreline, forward evenly spread
		2 raised mounts
      8 - 0.79" / 20.0 mm 65.0 cal guns - 0.33lbs / 0.15kg shells, 2,000 per gun
	  Anti-air guns in deck mounts, 1937 Model
	  2 x 2 row quad mounts on centreline, forward evenly spread
		2 double raised mounts
      Weight of broadside 985 lbs / 447 kg
      Main Torpedoes
      12 - 21.0" / 533 mm, 23.58 ft / 7.19 m torpedoes - 1.580 t each, 18.963 t total
	In 4 sets of deck mounted side rotating tubes

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	1.97" / 50 mm	393.70 ft / 120.00 m	10.17 ft / 3.10 m
	Ends:	Unarmoured
	  Main Belt covers 115 % of normal length
	  Main Belt inclined -18.00 degrees (positive = in)

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		0.98" / 25 mm	393.70 ft / 120.00 m	16.40 ft / 5.00 m
	Beam between torpedo bulkheads 42.65 ft / 13.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	3.15" / 80 mm	1.18" / 30 mm		3.15" / 80 mm
	2nd:	0.20" / 5 mm	0.20" / 5 mm		      -
	3rd:	0.20" / 5 mm	      -			      -

   - Armoured deck - single deck:
	For and Aft decks: 1.18" / 30 mm
	Forecastle: 0.00" / 0 mm  Quarter deck: 0.79" / 20 mm

   - Conning towers: Forward 3.15" / 80 mm, Aft 0.00" / 0 mm

Machinery:
	Oil fired boilers, steam turbines,
	Geared drive, 2 shafts, 46,000 shp / 34,316 Kw = 30.51 kts
	Range 5,370nm at 16.00 kts
	Bunker at max displacement = 901 tons

Complement:
	296 - 386

Cost:
	£2.482 million / $9.929 million

Distribution of weights at normal displacement:
	Armament: 399 tons, 8.0 %
	   - Guns: 361 tons, 7.2 %
	   - Weapons: 38 tons, 0.8 %
	Armour: 934 tons, 18.7 %
	   - Belts: 312 tons, 6.2 %
	   - Torpedo bulkhead: 235 tons, 4.7 %
	   - Armament: 50 tons, 1.0 %
	   - Armour Deck: 316 tons, 6.3 %
	   - Conning Tower: 20 tons, 0.4 %
	Machinery: 1,275 tons, 25.5 %
	Hull, fittings & equipment: 1,570 tons, 31.4 %
	Fuel, ammunition & stores: 737 tons, 14.7 %
	Miscellaneous weights: 85 tons, 1.7 %
	   - On freeboard deck: 40 tons
	   - Above deck: 45 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  5,273 lbs / 2,392 Kg = 52.1 x 5.9 " / 149 mm shells or 0.9 torpedoes
	Stability (Unstable if below 1.00): 1.20
	Metacentric height 2.2 ft / 0.7 m
	Roll period: 13.0 seconds
	Steadiness	- As gun platform (Average = 50 %): 50 %
			- Recoil effect (Restricted arc if above 1.00): 0.42
	Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
	Hull has rise forward of midbreak,
	  a normal bow and a round stern
	Block coefficient (normal/deep): 0.461 / 0.471
	Length to Beam Ratio: 11.43 : 1
	'Natural speed' for length: 22.91 kts
	Power going to wave formation at top speed: 53 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 15.30 degrees
	Stern overhang: 11.48 ft / 3.50 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	15.00 %,  19.69 ft / 6.00 m,  16.40 ft / 5.00 m
	   - Forward deck:	50.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
	   - Aft deck:	25.00 %,  8.20 ft / 2.50 m,  8.20 ft / 2.50 m
	   - Quarter deck:	10.00 %,  8.20 ft / 2.50 m,  8.20 ft / 2.50 m
	   - Average freeboard:		13.73 ft / 4.19 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 115.3 %
		- Above water (accommodation/working, high = better): 131.8 %
	Waterplane Area: 15,520 Square feet or 1,442 Square metres
	Displacement factor (Displacement / loading): 105 %
	Structure weight / hull surface area: 82 lbs/sq ft or 400 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.99
		- Longitudinal: 1.01
		- Overall: 1.00
	Cramped machinery, storage, compartmentation space
	Excellent accommodation and workspace room

Made in Germany
30mm armoured deck over belt
30mm protected deck with 50mm slopes over steering gear
A-V-X turret layout

15cm/60 SK C/28 (L57.5) - 12rpm - 45.5kg - 25700m@40 deg
8.8cm/76 SK C/32 (L72) - 20rpm - 9kg - 17200m@45 deg, AA 12400m@80 deg
2cm/65 C/38 - 480/220 rpm - 0.148kg - 4900m@45 deg, AA 3700m@85 deg
53.3cm G61 T1 - 280kg Hexanite - 6000m@44kt, 8000m@40kt, 14000m@30kt

Misc Weight:
1 heavy crane, 1 GP catapult
2 seaplanes (Arado Ar 196)

Design time: 1h 40 min