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- HMCS Montreal, a fucking leaf not atlanta laid down 1927
- Displacement:
- 9,525 t light; 10,000 t standard; 11,423 t normal; 12,562 t full load
- Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
- (618.11 ft / 590.55 ft) x 60.70 ft x (22.97 / 24.66 ft)
- (188.40 m / 180.00 m) x 18.50 m x (7.00 / 7.52 m)
- Armament:
- 16 - 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
- 6 x Twin mounts on centreline, evenly spread
- 2 raised mounts
- 2 x Twin mounts on centreline, evenly spread
- 2 double raised mounts
- 10 - 5.00" / 127 mm 25.0 cal guns - 53.99lbs / 24.49kg shells, 200 per gun
- Anti-air guns in deck mounts, 1921 Model
- 10 x Single mounts on sides, evenly spread
- 4 raised mounts
- Weight of broadside 2,220 lbs / 1,007 kg
- Main Torpedoes
- 12 - 21.0" / 533 mm, 20.51 ft / 6.25 m torpedoes - 1.359 t each, 16.307 t total
- In 4 sets of deck mounted side rotating tubes
- Armour:
- - Belts: Width (max) Length (avg) Height (avg)
- Main: 5.00" / 127 mm 496.06 ft / 151.20 m 8.01 ft / 2.44 m
- Ends: Unarmoured
- Main Belt covers 129 % of normal length
- Main Belt inclined -10.00 degrees (positive = in)
- - Torpedo Bulkhead - Strengthened structural bulkheads:
- 0.98" / 25 mm 590.55 ft / 180.00 m 39.37 ft / 12.00 m
- Beam between torpedo bulkheads 47.57 ft / 14.50 m
- - Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
- 2nd: 5.98" / 152 mm 2.01" / 51 mm 5.98" / 152 mm
- 3rd: 0.98" / 25 mm 0.50" / 13 mm -
- - Armoured deck - single deck:
- For and Aft decks: 2.01" / 51 mm
- - Conning towers: Forward 5.00" / 127 mm, Aft 0.00" / 0 mm
- Machinery:
- Oil fired boilers, steam turbines,
- Electric motors, 4 shafts, 91,436 shp / 68,211 Kw = 32.00 kts
- Range 10,000nm at 15.00 kts
- Bunker at max displacement = 2,562 tons
- Complement:
- 552 - 718
- Cost:
- £3.480 million / $13.920 million
- Distribution of weights at normal displacement:
- Armament: 551 tons, 4.8 %
- - Guns: 518 tons, 4.5 %
- - Weapons: 33 tons, 0.3 %
- Armour: 2,732 tons, 23.9 %
- - Belts: 780 tons, 6.8 %
- - Torpedo bulkhead: 847 tons, 7.4 %
- - Armament: 217 tons, 1.9 %
- - Armour Deck: 833 tons, 7.3 %
- - Conning Tower: 55 tons, 0.5 %
- Machinery: 2,886 tons, 25.3 %
- Hull, fittings & equipment: 3,271 tons, 28.6 %
- Fuel, ammunition & stores: 1,899 tons, 16.6 %
- Miscellaneous weights: 85 tons, 0.7 %
- - Above deck: 85 tons
- Overall survivability and seakeeping ability:
- Survivability (Non-critical penetrating hits needed to sink ship):
- 13,613 lbs / 6,175 Kg = 53.3 x 6 " / 152 mm shells or 2.0 torpedoes
- Stability (Unstable if below 1.00): 1.15
- Metacentric height 3.1 ft / 0.9 m
- Roll period: 14.6 seconds
- Steadiness - As gun platform (Average = 50 %): 70 %
- - Recoil effect (Restricted arc if above 1.00): 0.70
- Seaboat quality (Average = 1.00): 1.27
- Hull form characteristics:
- Hull has a flush deck,
- a straight bulbous bow and a cruiser stern
- Block coefficient (normal/deep): 0.486 / 0.497
- Length to Beam Ratio: 9.73 : 1
- 'Natural speed' for length: 24.30 kts
- Power going to wave formation at top speed: 56 %
- Trim (Max stability = 0, Max steadiness = 100): 55
- Bow angle (Positive = bow angles forward): 45.00 degrees
- Stern overhang: 0.00 ft / 0.00 m
- Freeboard (% = length of deck as a percentage of waterline length):
- Fore end, Aft end
- - Forecastle: 11.00 %, 27.56 ft / 8.40 m, 21.65 ft / 6.60 m
- - Forward deck: 30.00 %, 21.65 ft / 6.60 m, 21.65 ft / 6.60 m
- - Aft deck: 54.00 %, 21.65 ft / 6.60 m, 20.67 ft / 6.30 m
- - Quarter deck: 5.00 %, 20.67 ft / 6.30 m, 20.67 ft / 6.30 m
- - Average freeboard: 21.60 ft / 6.58 m
- Ship space, strength and comments:
- Space - Hull below water (magazines/engines, low = better): 128.4 %
- - Above water (accommodation/working, high = better): 170.5 %
- Waterplane Area: 23,576 Square feet or 2,190 Square metres
- Displacement factor (Displacement / loading): 107 %
- Structure weight / hull surface area: 107 lbs/sq ft or 524 Kg/sq metre
- Hull strength (Relative):
- - Cross-sectional: 0.94
- - Longitudinal: 1.73
- - Overall: 1.00
- Cramped machinery, storage, compartmentation space
- Excellent accommodation and workspace room
- Ship has slow, easy roll, a good, steady gun platform
- Good seaboat, rides out heavy weather easily
- STS reinforcement to hull plating to defeat light calibre HE
- 6"/53 Mark 12
- 5"/25 Mark 10
- 21" Mark 15 Torpedo
- 2 seaplanes, 1 crane, 1 gunpowder cat
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