Ottoman Light Cruiser Design Contest

[miketr]

 ;D

Their scrap value is higher...  15% so I could get more money and BP to scrap them.  No what the Ottomans will do is strip them of their weapons and turn them into harbor hulks.

[TexanCowboy]

ok then, sorry, forgot about the B.P., besides, don't have the cash, spending loads of money for the Columbians.

[Desertfox]

Here ya go...


Aurora class, New Switzerland Designed Cruiser laid down 1916

Displacement:
   7,250 t light; 7,608 t standard; 9,140 t normal; 10,365 t full load

Dimensions: Length overall / water x beam x draught
   550.00 ft / 550.00 ft x 55.00 ft x 22.50 ft (normal load)
   167.64 m / 167.64 m x 16.76 m  x 6.86 m

Armament:
      10 - 5.91" / 150 mm guns (5x2 guns), 102.98lbs / 46.71kg shells, 1916 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, majority aft, 2 raised mounts - superfiring
      8 - 2.95" / 75.0 mm guns in single mounts, 12.87lbs / 5.84kg shells, 1916 Model
     Quick firing guns in deck mounts
     on side, evenly spread
      8 - 0.59" / 15.0 mm guns (4x2 guns), 0.10lbs / 0.05kg shells, 1916 Model
     Machine guns in deck mounts
     on side, evenly spread
   Weight of broadside 1,134 lbs / 514 kg
   Shells per gun, main battery: 270
   8 - 17.7" / 450 mm above water torpedoes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   2.95" / 75 mm   400.26 ft / 122.00 m   11.48 ft / 3.50 m
   Ends:   Unarmoured
     Main Belt covers 112 % of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.18" / 30 mm   0.79" / 20 mm      0.79" / 20 mm

   - Armour deck: 1.18" / 30 mm, Conning tower: 3.94" / 100 mm

Machinery:
   Oil fired boilers, steam turbines,
   Electric motors, 4 shafts, 71,439 shp / 53,294 Kw = 31.00 kts
   Range 5,000nm at 20.00 kts
   Bunker at max displacement = 2,757 tons

Complement:
   466 - 607

Cost:
   £1.220 million / $4.879 million

Distribution of weights at normal displacement:
   Armament: 142 tons, 1.6 %
   Armour: 1,060 tons, 11.6 %
      - Belts: 554 tons, 6.1 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 40 tons, 0.4 %
      - Armour Deck: 429 tons, 4.7 %
      - Conning Tower: 37 tons, 0.4 %
   Machinery: 2,662 tons, 29.1 %
   Hull, fittings & equipment: 3,066 tons, 33.5 %
   Fuel, ammunition & stores: 1,890 tons, 20.7 %
   Miscellaneous weights: 320 tons, 3.5 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     8,299 lbs / 3,764 Kg = 80.6 x 5.9 " / 150 mm shells or 1.2 torpedoes
   Stability (Unstable if below 1.00): 1.20
   Metacentric height 2.8 ft / 0.9 m
   Roll period: 13.7 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.37
   Seaboat quality  (Average = 1.00): 1.12

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.470
   Length to Beam Ratio: 10.00 : 1
   'Natural speed' for length: 23.45 kts
   Power going to wave formation at top speed: 55 %
   Trim (Max stability = 0, Max steadiness = 100): 62
   Bow angle (Positive = bow angles forward): 0.00 degrees
   Stern overhang: 0.00 ft / 0.00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      27.00 ft / 8.23 m
      - Forecastle (20 %):   19.00 ft / 5.79 m
      - Mid (40 %):      19.00 ft / 5.79 m
      - Quarterdeck (15 %):   14.00 ft / 4.27 m
      - Stern:      14.00 ft / 4.27 m
      - Average freeboard:   17.77 ft / 5.41 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 111.4 %
      - Above water (accommodation/working, high = better): 120.6 %
   Waterplane Area: 19,624 Square feet or 1,823 Square metres
   Displacement factor (Displacement / loading): 117 %
   Structure weight / hull surface area: 92 lbs/sq ft or 451 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.96
      - Longitudinal: 1.45
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform

[Korpen]

Barbarossa. The doors in the side are to allow for external access to the mine hangars that extend along the side of the ship, for ease of loading when alongside a pier. The fact that the mines are stored internally both shelters them from weather effect, and allows the crew to use light during preparations for launch during a night mission. Some care have been taken to maximise the fire arcs of the main battery.

[miketr]

Thanks DS...

Korpen the mount behind the Bridge would that work so close to the first funnel?  I would assume that the first fire room would extend a good way forward of the funnel   With that setup a Mag would have to be RIGHT in front of the funnel.

NICE Picture otherwise.

[Korpen]

True, that might be an issue, so i moved the mount forward about 2m, which should be enough to get a bit more separation.
I have tried to minimize the superstructure, to make her as small a target as possible.

[miketr]

I think based upon the picture Korpen's cruiser is the winner.

[Korpen]

I think based upon the picture Korpen's cruiser is the winner.

Yay! :)

As always, good fun with design competitions, and thanks for this one. :)

[mentat]

Well done indeed - I like her ;D

But wondering if funnels could be a bit closer together, move back bridge and 2nd Turret a bit  - and allow longer focsle?