Working on Midlife refits for Canada and Excelsior. First option is a 25% refit that primarily updates the secondary and AA armament, and bulges with bunkerage improvements. Second option is a more comprehensive 50% rebuild with engines and a new bow to bring them up to 31 knots.
HMCS Canada, Canadian Battleship laid down 1932
Displacement:
41,000 t light; 43,350 t standard; 47,074 t normal; 50,053 t full load
Dimensions: Length overall / water x beam x draught
725.82 ft / 720.00 ft x 108.00 ft (Bulges 112.00 ft) x 30.00 ft (normal load)
221.23 m / 219.46 m x 32.92 m (Bulges 34.14 m) x 9.14 m
Armament:
12 - 15.00" / 381 mm guns (4x3 guns), 1,938.00lbs / 879.06kg shells, 1932 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
20 - 5.50" / 140 mm guns (10x2 guns), 83.19lbs / 37.73kg shells, 1948 Model
Automatic rapid fire guns in deck mounts with hoists
on side, all amidships, 4 raised mounts - superfiring
16 - 2.24" / 57.0 mm guns (8x2 guns), 5.65lbs / 2.56kg shells, 1948 Model
Automatic rapid fire guns in deck mounts with hoists
on side, evenly spread
24 - 0.79" / 20.0 mm guns (12x2 guns), 0.24lbs / 0.11kg shells, 1932 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 25,016 lbs / 11,347 kg
Shells per gun, main battery: 100
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 16.0" / 406 mm 470.00 ft / 143.26 m 14.00 ft / 4.27 m
Ends: Unarmoured
Main Belt covers 100 % of normal length
- Torpedo Bulkhead and Bulges:
1.50" / 38 mm 470.00 ft / 143.26 m 28.00 ft / 8.53 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 16.0" / 406 mm 8.00" / 203 mm 12.0" / 305 mm
2nd: 2.00" / 51 mm 1.00" / 25 mm 1.00" / 25 mm
- Armour deck: 5.50" / 140 mm, Conning tower: 3.00" / 76 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 118,160 shp / 88,148 Kw = 28.00 kts
Range 12,000nm at 15.00 kts
Bunker at max displacement = 6,703 tons
Complement:
1,597 - 2,077
Cost:
£19.414 million / $77.657 million
Distribution of weights at normal displacement:
Armament: 2,795 tons, 5.9 %
Armour: 15,820 tons, 33.6 %
- Belts: 4,604 tons, 9.8 %
- Torpedo bulkhead: 730 tons, 1.6 %
- Armament: 3,892 tons, 8.3 %
- Armour Deck: 6,509 tons, 13.8 %
- Conning Tower: 84 tons, 0.2 %
Machinery: 3,488 tons, 7.4 %
Hull, fittings & equipment: 18,472 tons, 39.2 %
Fuel, ammunition & stores: 6,074 tons, 12.9 %
Miscellaneous weights: 425 tons, 0.9 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
65,518 lbs / 29,718 Kg = 38.8 x 15.0 " / 381 mm shells or 9.6 torpedoes
Stability (Unstable if below 1.00): 1.13
Metacentric height 7.0 ft / 2.1 m
Roll period: 17.8 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.70
Seaboat quality (Average = 1.00): 1.01
Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.681
Length to Beam Ratio: 6.43 : 1
'Natural speed' for length: 31.15 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 33.00 ft / 10.06 m
- Forecastle (40 %): 22.00 ft / 6.71 m
- Mid (75 %): 22.00 ft / 6.71 m
- Quarterdeck (20 %): 22.00 ft / 6.71 m
- Stern: 22.00 ft / 6.71 m
- Average freeboard: 23.76 ft / 7.24 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 86.3 %
- Above water (accommodation/working, high = better): 167.8 %
Waterplane Area: 63,966 Square feet or 5,943 Square metres
Displacement factor (Displacement / loading): 103 %
Structure weight / hull surface area: 218 lbs/sq ft or 1,064 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.41
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
HMCS Canada, Canadian Battleship laid down 1932 (Engine 194
Displacement:
45,000 t light; 47,434 t standard; 50,879 t normal; 53,634 t full load
Dimensions: Length overall / water x beam x draught
766.35 ft / 760.00 ft x 108.00 ft (Bulges 112.00 ft) x 30.00 ft (normal load)
233.58 m / 231.65 m x 32.92 m (Bulges 34.14 m) x 9.14 m
Armament:
12 - 15.00" / 381 mm guns (4x3 guns), 1,938.00lbs / 879.06kg shells, 1932 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
20 - 5.50" / 140 mm guns (10x2 guns), 83.19lbs / 37.73kg shells, 1948 Model
Automatic rapid fire guns in deck mounts with hoists
on side, all amidships, 4 raised mounts - superfiring
32 - 2.24" / 57.0 mm guns (16x2 guns), 5.65lbs / 2.56kg shells, 1948 Model
Automatic rapid fire guns in deck mounts with hoists
on side, evenly spread
24 - 0.79" / 20.0 mm guns (12x2 guns), 0.24lbs / 0.11kg shells, 1932 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 25,106 lbs / 11,388 kg
Shells per gun, main battery: 100
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 16.0" / 406 mm 470.00 ft / 143.26 m 14.00 ft / 4.27 m
Ends: Unarmoured
Main Belt covers 95 % of normal length
- Torpedo Bulkhead and Bulges:
1.50" / 38 mm 470.00 ft / 143.26 m 28.00 ft / 8.53 m
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 16.0" / 406 mm 8.00" / 203 mm 12.0" / 305 mm
2nd: 2.00" / 51 mm 1.00" / 25 mm 1.00" / 25 mm
- Armour deck: 5.50" / 140 mm, Conning tower: 3.00" / 76 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 182,311 shp / 136,004 Kw = 31.00 kts
Range 12,000nm at 15.00 kts
Bunker at max displacement = 6,200 tons
Complement:
1,693 - 2,201
Cost:
£20.718 million / $82.873 million
Distribution of weights at normal displacement:
Armament: 2,809 tons, 5.5 %
Armour: 16,705 tons, 32.8 %
- Belts: 4,631 tons, 9.1 %
- Torpedo bulkhead: 730 tons, 1.4 %
- Armament: 4,282 tons, 8.4 %
- Armour Deck: 6,974 tons, 13.7 %
- Conning Tower: 89 tons, 0.2 %
Machinery: 4,455 tons, 8.8 %
Hull, fittings & equipment: 20,456 tons, 40.2 %
Fuel, ammunition & stores: 5,879 tons, 11.6 %
Miscellaneous weights: 575 tons, 1.1 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
72,315 lbs / 32,801 Kg = 42.9 x 15.0 " / 381 mm shells or 10.0 torpedoes
Stability (Unstable if below 1.00): 1.06
Metacentric height 6.3 ft / 1.9 m
Roll period: 18.7 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0.86
Seaboat quality (Average = 1.00): 0.94
Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.697
Length to Beam Ratio: 6.79 : 1
'Natural speed' for length: 31.81 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 55
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 36.00 ft / 10.97 m
- Forecastle (40 %): 28.00 ft / 8.53 m
- Mid (75 %): 24.00 ft / 7.32 m
- Quarterdeck (20 %): 24.00 ft / 7.32 m
- Stern: 24.00 ft / 7.32 m
- Average freeboard: 27.58 ft / 8.41 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 88.1 %
- Above water (accommodation/working, high = better): 198.6 %
Waterplane Area: 68,536 Square feet or 6,367 Square metres
Displacement factor (Displacement / loading): 105 %
Structure weight / hull surface area: 220 lbs/sq ft or 1,073 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.95
- Longitudinal: 1.49
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather