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TimothyC
Post subject: Re: British Columbian "Naval" ShipsPosted: March 23rd, 2014, 7:45 pm
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Here are some of the smaller cranes I've used on the research ships that I've drawn:
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Charwhick
Post subject: Re: British Columbian "Naval" ShipsPosted: March 23rd, 2014, 7:48 pm
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Thanks Timothy, I especially like the ones in the upper left and right. I'll add them when I get a chance!

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heuhen
Post subject: Re: British Columbian "Naval" ShipsPosted: March 23rd, 2014, 7:52 pm
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some more:

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[ img ]


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Syzmo
Post subject: Re: British Columbian "Naval" ShipsPosted: March 24th, 2014, 4:01 pm
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So many choices

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klagldsf
Post subject: Re: British Columbian "Naval" ShipsPosted: March 24th, 2014, 4:18 pm
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Syzmo wrote:
So many choices
The choice is obvious:

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apdsmith
Post subject: Re: British Columbian "Naval" ShipsPosted: March 24th, 2014, 5:35 pm
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Hi klagldsf,

I think the ship needs rotating by 90 degrees anti-clockwise, but apart from that...

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NSWE: viewtopic.php?f=14&t=5695


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seeker36340
Post subject: Re: British Columbian "Naval" ShipsPosted: March 25th, 2014, 3:44 pm
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Definitely the right choice


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Charwhick
Post subject: Re: British Columbian "Naval" ShipsPosted: March 25th, 2014, 6:19 pm
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Even if there's a lull in updates while I'm away, I intend to finish this thread. I'm also considering changing my "worklist" to be finishing this, one larger (dedtroyer sized) ship to get practice at bigger sizes and a 1930s era destroyer leader (same scenerio but set back in time) to get practice with older ships and styles. What do you guys, the more experienced Bucketeers think?

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TimothyC
Post subject: Re: British Columbian "Naval" ShipsPosted: March 25th, 2014, 6:24 pm
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I think that is a fine plan. I look forward to seeing more.

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Charwhick
Post subject: Re: British Columbian "Naval" ShipsPosted: March 28th, 2014, 5:29 am
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I'm currently blocking out the hull to make sure everything fits and getting the lines to look nice; but does this seem like a particularly tenable design, or should I stop while I'm ahead? Keep in mind this would be a Canadian Navy project, not the weird BC maritime police thing.

HMCS Superior, Canada Lake Class Destroyer laid down 1937

Displacement:
2,709 t light; 2,819 t standard; 3,000 t normal; 3,145 t full load

Dimensions: Length overall / water x beam x draught
410.92 ft / 400.00 ft x 50.00 ft x 10.00 ft (normal load)
125.25 m / 121.92 m x 15.24 m x 3.05 m

Armament:
2 - 6.00" / 152 mm guns (1x2 guns), 108.00lbs / 48.99kg shells, 1937 Model
Breech loading guns in Coles/Ericsson turret
on centreline forward
6 - 4.70" / 119 mm guns (3x2 guns), 51.91lbs / 23.55kg shells, 1937 Model
Dual purpose guns in deck mounts with hoists
on centreline ends, majority aft, 2 raised mounts - superfiring
8 - 0.50" / 12.7 mm guns (2x4 guns), 0.06lbs / 0.03kg shells, 1937 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 528 lbs / 239 kg
Shells per gun, main battery: 150
2 - 21.0" / 533.4 mm above water torpedoes

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.00" / 76 mm 260.00 ft / 79.25 m 5.00 ft / 1.52 m
Ends: Unarmoured
Main Belt covers 100 % of normal length
Main belt does not fully cover magazines and engineering spaces

- Torpedo Bulkhead:
1.00" / 25 mm 200.00 ft / 60.96 m 10.00 ft / 3.05 m

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm 1.00" / 25 mm -
2nd: 1.00" / 25 mm 1.00" / 25 mm -

- Armour deck: 0.50" / 13 mm, Conning tower: 1.50" / 38 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 48,693 shp / 36,325 Kw = 33.00 kts
Range 5,000nm at 12.00 kts
Bunker at max displacement = 326 tons

Complement:
202 - 263

Cost:
Β£1.771 million / $7.085 million

Distribution of weights at normal displacement:
Armament: 66 tons, 2.2 %
Armour: 435 tons, 14.5 %
- Belts: 166 tons, 5.5 %
- Torpedo bulkhead: 74 tons, 2.5 %
- Armament: 57 tons, 1.9 %
- Armour Deck: 131 tons, 4.4 %
- Conning Tower: 7 tons, 0.2 %
Machinery: 1,246 tons, 41.5 %
Hull, fittings & equipment: 962 tons, 32.1 %
Fuel, ammunition & stores: 291 tons, 9.7 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,400 lbs / 635 Kg = 13.0 x 6.0 " / 152 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.31
Metacentric height 2.9 ft / 0.9 m
Roll period: 12.4 seconds
Steadiness - As gun platform (Average = 50 %): 49 %
- Recoil effect (Restricted arc if above 1.00): 0.29
Seaboat quality (Average = 1.00): 0.80

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.525
Length to Beam Ratio: 8.00 : 1
'Natural speed' for length: 23.17 kts
Power going to wave formation at top speed: 68 %
Trim (Max stability = 0, Max steadiness = 100): 60
Bow angle (Positive = bow angles forward): 20.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 30.00 ft / 9.14 m
- Forecastle (20 %): 25.00 ft / 7.62 m
- Mid (50 %): 25.00 ft / 7.62 m (14.00 ft / 4.27 m aft of break)
- Quarterdeck (12 %): 14.00 ft / 4.27 m
- Stern: 14.00 ft / 4.27 m
- Average freeboard: 19.90 ft / 6.07 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 252.4 %
- Above water (accommodation/working, high = better): 234.8 %
Waterplane Area: 14,188 Square feet or 1,318 Square metres
Displacement factor (Displacement / loading): 82 %
Structure weight / hull surface area: 43 lbs/sq ft or 208 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.46
- Longitudinal: 1.64
- Overall: 0.53
Hull space for machinery, storage, compartmentation is extremely poor
Room for accommodation and workspaces is excellent
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

The Lake Class (or Superior Class, after the lead ship) was a class of oceangoing "armoured destroyers" built for the Canadian navy prior to the Second World War. The Lake Class Destroyers were closer to light cruisers than to normal destroyers. The Lakes were developed to combat a threat of convoy raiding by the larger, more powerful destroyers being developed in Italy and Japan. In concept; the Lake class was similar to a battlecruiser: Faster than ships that could outfight her, and able to outfight anything that could outrun her. In practice; ever increasing demands on the vessel and a weaker than expected powerplant made the Lake class little more than a petite light cruiser. However, her increased armour and armament compared to destroyers; as well as her lower cost compared to the Town class, lead to the Lake class design being an export success to Britain and Australia as a convoy escort or colonial cruiser.

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