Planned refits for the Labrador class CLAAs;
Labrador class, Canadian Light Cruiser laid down 1934
![](http://i.imgur.com/BtOiGLr.png)
Displacement:
8,000 t light; 8,474 t standard; 9,504 t normal; 10,328 t full load
Dimensions: Length overall / water x beam x draught
564.50 ft / 557.00 ft x 56.00 ft (Bulges 58.00 ft) x 18.75 ft (normal load)
172.06 m / 169.77 m x 17.07 m (Bulges 17.68 m) x 5.72 m
Armament:
12 - 5.50" / 140 mm guns (6x2 guns), 83.19lbs / 37.73kg shells, 1945 Model
Automatic rapid fire guns in turrets (on barbettes)
on centreline ends, evenly spread, 4 raised mounts - superfiring
16 - 2.24" / 57.0 mm guns (8x2 guns), 5.65lbs / 2.56kg shells, 1945 Model
Automatic rapid fire guns in deck mounts with hoists
on side, evenly spread, all raised mounts
14 - 0.79" / 20.0 mm guns (5 mounts), 0.24lbs / 0.11kg shells, 1934 Model
Machine guns in deck mounts
on side, evenly spread, 4 raised mounts
Weight of broadside 1,092 lbs / 495 kg
Shells per gun, main battery: 450
12 - 21.0" / 533.4 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.00" / 102 mm 365.00 ft / 111.25 m 10.00 ft / 3.05 m
Ends: Unarmoured
Main Belt covers 101 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm 1.00" / 25 mm 1.00" / 25 mm
3rd: 1.00" / 25 mm - -
- Armour deck: 2.00" / 51 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 74,823 shp / 55,818 Kw = 32.00 kts
Range 9,000nm at 15.00 kts
Bunker at max displacement = 1,853 tons
Complement:
480 - 625
Cost:
£3.529 million / $14.116 million
Distribution of weights at normal displacement:
Armament: 164 tons, 1.7 %
Armour: 1,601 tons, 16.8 %
- Belts: 608 tons, 6.4 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 154 tons, 1.6 %
- Armour Deck: 838 tons, 8.8 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 2,153 tons, 22.6 %
Hull, fittings & equipment: 3,628 tons, 38.2 %
Fuel, ammunition & stores: 1,504 tons, 15.8 %
Miscellaneous weights: 455 tons, 4.8 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
12,708 lbs / 5,764 Kg = 152.8 x 5.5 " / 140 mm shells or 1.6 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 2.4 ft / 0.7 m
Roll period: 15.6 seconds
Steadiness - As gun platform (Average = 50 %): 80 %
- Recoil effect (Restricted arc if above 1.00): 0.49
Seaboat quality (Average = 1.00): 1.37
Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.549
Length to Beam Ratio: 9.60 : 1
'Natural speed' for length: 26.87 kts
Power going to wave formation at top speed: 60 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 28.00 ft / 8.53 m
- Forecastle (33 %): 27.50 ft / 8.38 m
- Mid (50 %): 27.50 ft / 8.38 m (18.00 ft / 5.49 m aft of break)
- Quarterdeck (15 %): 18.00 ft / 5.49 m
- Stern: 18.00 ft / 5.49 m
- Average freeboard: 22.82 ft / 6.95 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 94.4 %
- Above water (accommodation/working, high = better): 139.4 %
Waterplane Area: 22,645 Square feet or 2,104 Square metres
Displacement factor (Displacement / loading): 124 %
Structure weight / hull surface area: 91 lbs/sq ft or 445 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.92
- Longitudinal: 2.09
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
Midlife refits for the Manitoba class light cruisers.
5.5"/45 QF/HA Mark IV mounts replaced with 5.5"/50 QF/HA Mark V (10t Misc per turret, 60t total)
Replaces quad 40mm AA fit with 57mm twins
Comprehensive electronics fit upgrade
Quarterdeck fitted to accommodate helicopter operations.