Ye Dou-Class Sloop (1928) (Taishe)

Ye Dou-Class, Taishe Dynasty Sloop laid down 1928

Displacement:
	1,060 t light; 1,109 t standard; 1,270 t normal; 1,400 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(329.66 ft / 328.08 ft) x 36.09 ft x (6.89 / 7.44 ft)
	(100.48 m / 100.00 m) x 11.00 m  x (2.10 / 2.27 m)

Armament:
      8 - 3.94" / 100 mm 45.0 cal guns - 33.07lbs / 15.00kg shells, 150 per gun
	  Quick firing guns in deck mounts, 1904 Model
	  4 x Twin mounts on centreline, evenly spread
		2 raised mounts
      12 - 0.79" / 20.0 mm 70.0 cal guns - 0.27lbs / 0.12kg shells, 500 per gun
	  Anti-air guns in deck mounts, 1918 Model
	  2 x 2 row quad mounts on sides amidships
	  1 x 2 row quad mount layout not set
		1 raised mount
      Weight of broadside 268 lbs / 121 kg
      Main DC/AS Mortars
      4 - 440.92 lbs / 200.00 kg Depth Charges + 120 reloads - 24.408 t total
	in Stern depth charge racks

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

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		1.97" / 50 mm	213.25 ft / 65.00 m	6.04 ft / 1.84 m
	Beam between torpedo bulkheads 29.53 ft / 9.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	2.95" / 75 mm	1.97" / 50 mm		      -

   - Box over machinery & magazines:
	1.97" / 50 mm
	Forecastle: 1.97" / 50 mm  Quarter deck: 1.97" / 50 mm

   - Conning towers: Forward 2.95" / 75 mm, Aft 0.00" / 0 mm

Machinery:
	Oil fired boilers, steam turbines,
	Geared drive, 4 shafts, 4,902 shp / 3,657 Kw = 20.00 kts
	Range 10,000nm at 10.00 kts
	Bunker at max displacement = 291 tons

Complement:
	106 - 138

Cost:
	£0.271 million / $1.085 million

Distribution of weights at normal displacement:
	Armament: 69 tons, 5.4 %
	   - Guns: 38 tons, 3.0 %
	   - Weapons: 31 tons, 2.4 %
	Armour: 391 tons, 30.8 %
	   - Torpedo bulkhead: 94 tons, 7.4 %
	   - Armament: 50 tons, 4.0 %
	   - Armour Deck: 240 tons, 18.9 %
	   - Conning Tower: 7 tons, 0.6 %
	Machinery: 153 tons, 12.0 %
	Hull, fittings & equipment: 448 tons, 35.2 %
	Fuel, ammunition & stores: 210 tons, 16.5 %
	Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  4,362 lbs / 1,979 Kg = 143.0 x 3.9 " / 100 mm shells or 1.9 torpedoes
	Stability (Unstable if below 1.00): 1.46
	Metacentric height 2.1 ft / 0.6 m
	Roll period: 10.5 seconds
	Steadiness	- As gun platform (Average = 50 %): 68 %
			- Recoil effect (Restricted arc if above 1.00): 0.18
	Seaboat quality  (Average = 1.00): 1.35

Hull form characteristics:
	Hull has rise forward of midbreak,
	  a straight bulbous bow and a round stern
	Block coefficient (normal/deep): 0.545 / 0.556
	Length to Beam Ratio: 9.09 : 1
	'Natural speed' for length: 18.11 kts
	Power going to wave formation at top speed: 45 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 5.00 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 %,  18.04 ft / 5.50 m,  13.12 ft / 4.00 m
	   - Forward deck:	30.00 %,  13.12 ft / 4.00 m,  11.48 ft / 3.50 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:		10.81 ft / 3.30 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 61.6 %
		- Above water (accommodation/working, high = better): 149.2 %
	Waterplane Area: 8,225 Square feet or 764 Square metres
	Displacement factor (Displacement / loading): 156 %
	Structure weight / hull surface area: 49 lbs/sq ft or 241 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.99
		- Longitudinal: 1.05
		- Overall: 1.00
	Excellent machinery, storage, compartmentation space
	Excellent accommodation and workspace room
	Good seaboat, rides out heavy weather easily