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Saturday, July 6th 2013, 9:45pm

Fictional Canadian Heavy Cruiser Class

Hello all,

Here is my design for a Canadian heavy cruiser class, partly based on the British County class and the US Baltimore class.

I chose the fictional hull classification CHV for these vessels (stands for Cruiser Haute Vitesse, or High Speed Cruiser).

Quebec Class, Canada Heavy Cruiser laid down 1935

Units:
HMCS Quebec (CHV-1)
HMCS Manitoba (CHV-2)
HMCS Labrador (CHV-3)
HMCS British Columbia (CHV-4)

Displacement: 14,579 t light; 15,349 t standard; 16,625 t normal; 17,646 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(638.99 ft / 625.00 ft) x 68.50 ft (Bulges 70.00 ft) x (23.75 ft / 24.93 ft)
(194.76 m / 190.50 m) x 20.88 m (Bulges 21.34 m) x (7.24 m / 7.60 m)

Armament:
8 - 8.00" / 203 mm 50.0 cal guns - 256.00lbs / 116.12kg shells, 250 per gun
Breech loading guns in turret on barbette mounts, 1935 Model
4 x Twin mounts on centreline, evenly spread
2 raised mounts
12 - 4.50" / 114 mm 45.0 cal guns - 46.01lbs / 20.87kg shells, 250 per gun
Quick firing guns in deck and hoist mounts, 1935 Model
6 x Twin mounts on sides, evenly spread
2 raised mounts
20 - 1.57" / 40.0 mm 60.0 cal guns - 2.01lbs / 0.91kg shells, 3,000 per gun
Anti-air guns in deck mounts, 1935 Model
5 x Quad mounts on sides, evenly spread
4 raised mounts
20 - 0.79" / 20.0 mm 70.0 cal guns - 0.31lbs / 0.14kg shells, 3,000 per gun
Anti-air guns in deck mounts, 1935 Model
20 x Single mounts on sides, evenly spread
Weight of broadside 2,646 lbs / 1,200 kg
Main Torpedoes
8 - 21.0" / 533 mm, 17.00 ft / 5.18 m torpedoes - 1.185 t each, 9.484 t total
In 2 sets of deck mounted side rotating tubes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5.25" / 133 mm 600.00 ft / 182.88 m 10.00 ft / 3.05 m
Ends: Unarmoured
Upper: 2.00" / 51 mm 400.00 ft / 121.92 m 5.00 ft / 1.52 m
Main Belt covers 148 % of normal length
Main Belt inclined 15.00 degrees (positive = in)

- Torpedo Bulkhead - Additional damage containing bulkheads:
1.50" / 38 mm 600.00 ft / 182.88 m 26.00 ft / 7.92 m
Beam between torpedo bulkheads 58.00 ft / 17.68 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 8.00" / 203 mm 3.50" / 89 mm 6.50" / 165 mm
2nd: 0.75" / 19 mm 1.00" / 25 mm 1.25" / 32 mm
3rd: 0.50" / 13 mm - -
4th: 0.50" / 13 mm - -

- Box over machinery & magazines:
3.25" / 83 mm
Forecastle: 3.00" / 76 mm Quarter deck: 3.00" / 76 mm

- Conning towers: Forward 6.50" / 165 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 108,000 shp / 80,568 Kw = 32 kts
Range 6,500nm at 16.00 kts
Bunker at normal / max displacement = 1,276 tons / 2,296 tons

Complement: 731 - 951

Cost: £6.227 million / $24.910 million

Distribution of weights at normal displacement:
Armament: 694 tons, 4.2 %
- Guns: 675 tons, 4.1 %
- Weapons: 19 tons, 0.1 %
Armour: 4,729 tons, 28.4 %
- Belts: 1,384 tons, 8.3 %
- Torpedo bulkhead: 866 tons, 5.2 %
- Armament: 734 tons, 4.4 %
- Armour Deck: 1,653 tons, 9.9 %
- Conning Tower: 91 tons, 0.5 %
Machinery: 3,068 tons, 18.5 %
Hull, fittings & equipment: 5,538 tons, 33.3 %
Fuel, ammunition & stores: 2,046 tons, 12.3 %
Miscellaneous weights: 550 tons, 3.3 %
- Hull below water: 200 tons
- Hull above water: 200 tons
- On freeboard deck: 150 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
23,786 lbs / 10,789 Kg = 92.9 x 8.0 " / 203 mm shells or 4.0 torpedoes
Stability (Unstable if below 1.00): 1.12
Metacentric height 3.5 ft / 1.1 m
Roll period: 15.6 seconds
Steadiness - As gun platform (Average = 50 %): 58 %
- Recoil effect (Restricted arc if above 1.00): 0.46
Seaboat quality (Average = 1.00): 1.16

Hull form characteristics:
Hull has a flush deck, a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.560 / 0.566
Length to Beam Ratio: 8.93 : 1
'Natural speed' for length: 25.00 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: -5.00 ft / -1.52 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 30.00 ft / 9.14 m, 24.00 ft / 7.32 m
- Forward deck: 30.00 %, 24.00 ft / 7.32 m, 22.00 ft / 6.71 m
- Aft deck: 35.00 %, 22.00 ft / 6.71 m, 22.00 ft / 6.71 m
- Quarter deck: 15.00 %, 22.00 ft / 6.71 m, 23.00 ft / 7.01 m
- Average freeboard: 23.26 ft / 7.09 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 94.7 %
- Above water (accommodation/working, high = better): 174.4 %
Waterplane Area: 30,160 Square feet or 2,802 Square metres
Displacement factor (Displacement / loading): 118 %
Structure weight / hull surface area: 120 lbs/sq ft or 587 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.96
- Longitudinal: 1.52
- Overall: 1.00
Adequate machinery, storage, compartmentation space
Excellent accommodation and workspace room

Notes: Miscellaneous weight is for radar, and for 'growth'.

This post has been edited 1 times, last edit by "RMSCANADA" (Jul 7th 2013, 5:44pm)


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Sunday, July 7th 2013, 10:25pm

I see you posted a copy of this in the Canadian Encyclopedia. That is a gross violation of board policy. Only the player actively in control of a nation in the sim may place things in the encyclopedia. I am not a mod, but I'd recommend you remove your post from ShinRa's encyclopedia and then read the board rules.

3

Monday, July 8th 2013, 6:18am

RMSCANADA, see the relevant rule post here. Basically, do not post in a player's encyclopedia. If you have questions, post in the design folder or PM the player directly.

I will remove your post in the encyclopedia tomorrow (Monday morning).

4

Monday, July 8th 2013, 9:07pm

Sorry guys, I didn't know. I won't post over there again. I thought it was a 'general' thread about Canadian cruiser designs.

Anyways, what do you think about my cruiser design?