1927 Canadian Cruiser Concept Alberta-class Final

Alberta-class, Canada Cruiser laid down 1927

Displacement:
	9,538 t light; 9,973 t standard; 11,038 t normal; 11,890 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(567.30 ft / 557.74 ft) x 63.98 ft x (19.69 / 20.88 ft)
	(172.91 m / 170.00 m) x 19.50 m  x (6.00 / 6.36 m)

Armament:
      6 - 7.99" / 203 mm 55.0 cal guns - 259.99lbs / 117.93kg shells, 150 per gun
	  Breech loading guns in deck and hoist mounts, 1922 Model
	  2 x Triple mounts on centreline, forward evenly spread
		1 raised mount
      6 - 5.98" / 152 mm 53.0 cal guns - 105.01lbs / 47.63kg shells, 200 per gun
	  Breech loading guns in deck and hoist mounts, 1920 Model
	  3 x Twin mounts on centreline, aft evenly spread
		2 raised mounts
      4 - 2.99" / 76.0 mm 50.0 cal guns - 13.01lbs / 5.90kg shells, 300 per gun
	  Anti-air guns in deck mounts, 1914 Model
	  4 x Single mounts on sides, evenly spread
      6 - 1.46" / 37.0 mm 50.0 cal guns - 1.61lbs / 0.73kg shells, 1,000 per gun
	  Anti-air guns in deck mounts, 1925 Model
	  6 x Single mounts on sides, evenly spread
      Weight of broadside 2,252 lbs / 1,021 kg

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	4.72" / 120 mm	508.53 ft / 155.00 m	9.61 ft / 2.93 m
	Ends:	2.01" / 51 mm	  49.21 ft / 15.00 m	9.61 ft / 2.93 m
	Upper:	2.01" / 51 mm	508.53 ft / 155.00 m	8.01 ft / 2.44 m
	  Main Belt covers 140 % of normal length
	  Main Belt inclined -10.00 degrees (positive = in)

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		2.99" / 76 mm	508.53 ft / 155.00 m	18.08 ft / 5.51 m
	Beam between torpedo bulkheads 49.21 ft / 15.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	2.56" / 65 mm	1.26" / 32 mm		2.56" / 65 mm
	2nd:	0.98" / 25 mm	0.98" / 25 mm		0.98" / 25 mm

   - Armoured deck - multiple decks:
	For and Aft decks: 1.57" / 40 mm
	Forecastle: 0.98" / 25 mm  Quarter deck: 0.98" / 25 mm

   - Conning towers: Forward 4.02" / 102 mm, Aft 0.00" / 0 mm

Machinery:
	Oil fired boilers, steam turbines,
	Geared drive, 4 shafts, 90,513 shp / 67,523 Kw = 31.50 kts
	Range 7,500nm at 15.00 kts
	Bunker at max displacement = 1,917 tons

Complement:
	537 - 699

Cost:
	£3.651 million / $14.602 million

Distribution of weights at normal displacement:
	Armament: 612 tons, 5.5 %
	   - Guns: 612 tons, 5.5 %
	Armour: 3,054 tons, 27.7 %
	   - Belts: 1,262 tons, 11.4 %
	   - Torpedo bulkhead: 1,018 tons, 9.2 %
	   - Armament: 63 tons, 0.6 %
	   - Armour Deck: 668 tons, 6.1 %
	   - Conning Tower: 43 tons, 0.4 %
	Machinery: 2,857 tons, 25.9 %
	Hull, fittings & equipment: 2,870 tons, 26.0 %
	Fuel, ammunition & stores: 1,500 tons, 13.6 %
	Miscellaneous weights: 145 tons, 1.3 %
	   - Above deck: 145 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  11,857 lbs / 5,378 Kg = 46.5 x 8.0 " / 203 mm shells or 2.0 torpedoes
	Stability (Unstable if below 1.00): 1.34
	Metacentric height 4.3 ft / 1.3 m
	Roll period: 13.0 seconds
	Steadiness	- As gun platform (Average = 50 %): 46 %
			- Recoil effect (Restricted arc if above 1.00): 0.37
	Seaboat quality  (Average = 1.00): 0.84

Hull form characteristics:
	Hull has a flush deck,
	  a normal bow and a cruiser stern
	Block coefficient (normal/deep): 0.550 / 0.558
	Length to Beam Ratio: 8.72 : 1
	'Natural speed' for length: 23.62 kts
	Power going to wave formation at top speed: 60 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 20.00 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 %,  26.25 ft / 8.00 m,  19.69 ft / 6.00 m
	   - Forward deck:	30.00 %,  19.69 ft / 6.00 m,  16.40 ft / 5.00 m
	   - Aft deck:	30.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
	   - Quarter deck:	20.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
	   - Average freeboard:		18.08 ft / 5.51 m

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 138.6 %
		- Above water (accommodation/working, high = better): 152.1 %
	Waterplane Area: 24,902 Square feet or 2,314 Square metres
	Displacement factor (Displacement / loading): 96 %
	Structure weight / hull surface area: 112 lbs/sq ft or 548 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.97
		- Longitudinal: 1.34
		- Overall: 1.01
	Cramped machinery, storage, compartmentation space
	Excellent accommodation and workspace room
	Poor seaboat, wet and uncomfortable, reduced performance in heavy weather