Haida DL v1

HMCS Haida, Canadian Tribal class Destroyer Leader laid down 1941

Displacement:
	3,103 t light; 3,243 t standard; 3,606 t normal; 3,896 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(436.56 ft / 426.51 ft) x 45.93 ft x (17.22 / 18.08 ft)
	(133.06 m / 130.00 m) x 14.00 m  x (5.25 / 5.51 m)

Armament:
      6 - 4.49" / 114 mm 45.0 cal guns - 55.01lbs / 24.95kg shells, 300 per gun
	  Dual purpose guns in deck and hoist mounts, 1941 Model
	  2 x Twin mounts on centreline, forward deck forward
		1 raised mount - superfiring
	  1 x Twin mount on centreline, aft deck aft
      5 - 1.57" / 40.0 mm 56.3 cal guns - 1.96lbs / 0.89kg shells, 1,600 per gun
	  Anti-air guns in deck mounts, 1941 Model
	  4 x Single mounts on sides, evenly spread
	  1 x Single mount on centreline, forward deck centre
		1 double raised mount
      16 - 0.79" / 20.0 mm 70.0 cal guns - 0.26lbs / 0.12kg shells, 2,000 per gun
	  Machine guns in deck mounts, 1941 Model
	  8 x Twin mounts on sides, evenly spread
		4 raised mounts
      Weight of broadside 344 lbs / 156 kg
      Main Torpedoes
      4 - 21.0" / 533 mm, 23.87 ft / 7.28 m torpedoes - 1.614 t each, 6.456 t total
	In 1 sets of deck mounted centre rotating tubes
      Main DC/AS Mortars
      2 - 390.22 lbs / 177.00 kg trainable AS Mortars + 9 reloads - 1.916 t total

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	0.24" / 6 mm	245.24 ft / 74.75 m	7.38 ft / 2.25 m
	Ends:	0.24" / 6 mm	132.02 ft / 40.24 m	7.38 ft / 2.25 m
	  49.25 ft / 15.01 m Unarmoured ends
	Upper:	0.24" / 6 mm	245.24 ft / 74.75 m	8.01 ft / 2.44 m
	  Main Belt covers 88 % of normal length
	  Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		0.24" / 6 mm	245.24 ft / 74.75 m	9.88 ft / 3.01 m
	Beam between torpedo bulkheads 45.93 ft / 14.00 m

   - Hull void:
		0.00" / 0 mm	  0.00 ft / 0.00 m	0.00 ft / 0.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	0.98" / 25 mm	0.39" / 10 mm		0.98" / 25 mm
	3rd:	0.24" / 6 mm	      -			      -

   - Armoured deck - multiple decks:
	For and Aft decks: 0.24" / 6 mm
	Forecastle: 0.24" / 6 mm  Quarter deck: 0.24" / 6 mm

   - Conning towers: Forward 0.24" / 6 mm, Aft 0.24" / 6 mm

Machinery:
	Oil fired boilers, steam turbines,
	Geared drive, 2 shafts, 68,001 shp / 50,729 Kw = 34.61 kts
	Range 5,700nm at 15.00 kts
	Bunker at max displacement = 652 tons

Complement:
	232 - 302

Cost:
	£2.351 million / $9.403 million

Distribution of weights at normal displacement:
	Armament: 103 tons, 2.8 %
	   - Guns: 69 tons, 1.9 %
	   - Weapons: 34 tons, 0.9 %
	Armour: 134 tons, 3.7 %
	   - Belts: 46 tons, 1.3 %
	   - Torpedo bulkhead: 21 tons, 0.6 %
	   - Armament: 12 tons, 0.3 %
	   - Armour Deck: 52 tons, 1.4 %
	   - Conning Towers: 2 tons, 0.1 %
	Machinery: 1,741 tons, 48.3 %
	Hull, fittings & equipment: 1,080 tons, 30.0 %
	Fuel, ammunition & stores: 503 tons, 14.0 %
	Miscellaneous weights: 45 tons, 1.2 %
	   - Hull below water: 10 tons
	   - Hull void weights: 10 tons
	   - Hull above water: 10 tons
	   - On freeboard deck: 10 tons
	   - Above deck: 5 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  1,356 lbs / 615 Kg = 30.0 x 4.5 " / 114 mm shells or 0.4 torpedoes
	Stability (Unstable if below 1.00): 1.33
	Metacentric height 2.6 ft / 0.8 m
	Roll period: 12.0 seconds
	Steadiness	- As gun platform (Average = 50 %): 71 %
			- Recoil effect (Restricted arc if above 1.00): 0.25
	Seaboat quality  (Average = 1.00): 1.14

Hull form characteristics:
	Hull has a flush deck,
	  a normal bow and a cruiser stern
	Block coefficient (normal/deep): 0.374 / 0.385
	Length to Beam Ratio: 9.29 : 1
	'Natural speed' for length: 20.65 kts
	Power going to wave formation at top speed: 64 %
	Trim (Max stability = 0, Max steadiness = 100): 62
	Bow angle (Positive = bow angles forward): 25.00 degrees
	Stern overhang: 1.64 ft / 0.50 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	20.00 %,  18.04 ft / 5.50 m,  18.04 ft / 5.50 m
	   - Forward deck:	30.00 %,  18.04 ft / 5.50 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:		18.04 ft / 5.50 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 165.1 %
		- Above water (accommodation/working, high = better): 158.4 %
	Waterplane Area: 11,855 Square feet or 1,101 Square metres
	Displacement factor (Displacement / loading): 89 %
	Structure weight / hull surface area: 51 lbs/sq ft or 250 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.58
		- Longitudinal: 2.09
		- Overall: 0.66
	Cramped machinery, storage, compartmentation space
	Excellent accommodation and workspace room
	Ship has slow, easy roll, a good, steady gun platform

HMCS Haida. Tribal-class Destroyer Leader. Functionally no armoring beyond splinter protection.