Orange Capital Ships - Old Thread

[P3D]

Tried my skills at Solidworks, I managed to draw this nice 3x13.5" turret.

[Sachmle]

Not too bad, not too bad at all.

[P3D]

The hull with turrets.

[Jefgte]

Solidworks is cool

Nice turrets


Jef  ;)

[P3D]

I might be getting into the details too much, but the turrets are rotatable and I can change the individual gun elevation too. Turret shape is taken from the Tegethoff. Guns might be on the thin side - at least making them thicker is trivial in SolidWorks.

Jefge, what did you use to get the hull shape? I used splines with three intermediate points.

[Jefgte]

For the hull shape I use arc of circle

For gunboat Rio Serena class (38mx5m)
Radius 75 - 30°

For battleship Cuzco class (127mx23m)
Radius 200 - 37°


Jef  ;)

[P3D]

I realized that the original design (a few pages back) with flush deck did not leave any space for above-freeboard secondaries (actually, to the funnel uptakes). Redesigned the whole ship (extra 1000t) to have a stepped hull like the preceding class - and putting 10 of the 6" guns in hull casemates. They are still high (5m+) above WL.
Armor arrangement does not have sloped deck, similar to Tennessee class, with TB up to the main deck.

Orange BB, laid down 1912

Displacement:
   23,000 t light; 24,405 t standard; 26,502 t normal; 28,179 t full load

Dimensions: Length overall / water x beam x draught
   557.00 ft / 557.00 ft x 93.00 ft x 30.00 ft (normal load)
   169.77 m / 169.77 m x 28.35 m  x 9.14 m

Armament:
      9 - 13.50" / 343 mm guns (3x3 guns), 1,230.19lbs / 558.00kg shells, 1912 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, evenly spread
     Aft Main mounts separated by engine room
      14 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1912 Model
     Breech loading guns in casemate mounts
     on side, all amidships
     8 guns in hull casemates - Limited use in heavy seas
      16 - 3.00" / 76.2 mm guns in single mounts, 13.50lbs / 6.12kg shells, 1912 Model
     Breech loading guns in deck mounts
     on side, evenly spread, 8 raised mounts
      16 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1912 Model
     Breech loading guns in deck mounts
     on side, evenly spread
   Weight of broadside 12,801 lbs / 5,806 kg
   Shells per gun, main battery: 120
   4 - 20.0" / 508 mm submerged torpedo tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   13.0" / 330 mm   360.00 ft / 109.73 m   12.00 ft / 3.66 m
   Ends:   6.00" / 152 mm   197.00 ft / 60.05 m   12.00 ft / 3.66 m
   Upper:   6.00" / 152 mm   360.00 ft / 109.73 m   12.00 ft / 3.66 m
     Main Belt covers 99 % of normal length

   - Torpedo Bulkhead:
      2.00" / 51 mm   360.00 ft / 109.73 m   36.00 ft / 10.97 m

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   14.0" / 356 mm   6.00" / 152 mm      13.0" / 330 mm
   2nd:   6.00" / 152 mm         -               -

   - Armour deck: 3.00" / 76 mm, Conning tower: 14.00" / 356 mm

Machinery:
   Oil fired boilers, steam turbines,
   Direct drive, 4 shafts, 46,918 shp / 35,001 Kw = 23.00 kts
   Range 10,000nm at 12.00 kts
   Bunker at max displacement = 3,774 tons

Complement:
   1,038 - 1,350

Cost:
   £2.411 million / $9.644 million

Distribution of weights at normal displacement:
   Armament: 1,600 tons, 6.0 %
   Armour: 9,899 tons, 37.4 %
      - Belts: 4,148 tons, 15.7 %
      - Torpedo bulkhead: 959 tons, 3.6 %
      - Armament: 2,427 tons, 9.2 %
      - Armour Deck: 2,097 tons, 7.9 %
      - Conning Tower: 268 tons, 1.0 %
   Machinery: 1,871 tons, 7.1 %
   Hull, fittings & equipment: 9,326 tons, 35.2 %
   Fuel, ammunition & stores: 3,502 tons, 13.2 %
   Miscellaneous weights: 305 tons, 1.2 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     34,698 lbs / 15,739 Kg = 28.2 x 13.5 " / 343 mm shells or 5.9 torpedoes
   Stability (Unstable if below 1.00): 1.09
   Metacentric height 5.3 ft / 1.6 m
   Roll period: 17.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.67
   Seaboat quality  (Average = 1.00): 1.29

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.597
   Length to Beam Ratio: 5.99 : 1
   'Natural speed' for length: 23.60 kts
   Power going to wave formation at top speed: 51 %
   Trim (Max stability = 0, Max steadiness = 100): 54
   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:      26.00 ft / 7.92 m
      - Forecastle (20 %):   22.00 ft / 6.71 m
      - Mid (60 %):      22.00 ft / 6.71 m
      - Quarterdeck (15 %):   14.00 ft / 4.27 m
      - Stern:      14.00 ft / 4.27 m
      - Average freeboard:   20.12 ft / 6.13 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 92.7 %
      - Above water (accommodation/working, high = better): 141.8 %
   Waterplane Area: 37,776 Square feet or 3,510 Square metres
   Displacement factor (Displacement / loading): 99 %
   Structure weight / hull surface area: 175 lbs/sq ft or 853 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.93
      - Longitudinal: 1.83
      - Overall: 1.00
   Hull space for machinery, storage, compartmentation is adequate
   Room for accommodation and workspaces is excellent
   Ship has slow, easy roll, a good, steady gun platform
   Good seaboat, rides out heavy weather easily

[P3D]

[Sachmle]

WOW  :o, nice solidworks image. Pretty good design too, but looking at the pic all the casemates but the 4 on the aft deck are "Hull mount", IMO.

[Korpen]

WOW  :o, nice solidworks image. Pretty good design too, but looking at the pic all the casemates but the 4 on the aft deck are "Hull mount", IMO.

Maybe, but not in what springsharp considers the hull (that is, below freeboard).

[Sachmle]

If the 2 amidships are above freeboard then they're deck level, but that makes the amidships turret above deck level, and therefore a raised mount.

[P3D]

If the 2 amidships are above freeboard then they're deck level, but that makes the amidships turret above deck level, and therefore a raised mount.

The amidship break is a full deck height. Q turret is fore of it, while the four casemate mounts are aft.

[P3D]

As a note, changing gun turret arrangement 'majority forward' (...of midbreak) I get the same strength. Switching majority aft gives me some extra as expected.

[Sachmle]

[P3D]

It is below the freeboard thus below the weather deck. High freeboard has its own weight penalty.