What to do with 9 inch guns ...

[Borys]

Enter ship name, Enter country Enter ship type laid down 1915 (Engine 1912)

Displacement:
   10 540 t light; 11 010 t standard; 12 272 t normal; 13 281 t full load

Dimensions: Length overall / water x beam x draught
   590,00 ft / 590,00 ft x 65,00 ft x 20,00 ft (normal load)
   179,83 m / 179,83 m x 19,81 m  x 6,10 m

Armament:
      6 - 9,00" / 229 mm guns (3x2 guns), 371,00lbs / 168,28kg shells, 1913 Model
     Breech loading guns in turrets (on barbettes)
     on centreline, evenly spread
     Aft Main mounts separated by engine room
      2 - 9,00" / 229 mm guns (1x2 guns), 371,00lbs / 168,28kg shells, 1913 Model
     Breech loading guns in a turret (on a barbette)
     on centreline aft, all raised guns - superfiring
      8 - 4,00" / 102 mm guns in single mounts, 32,00lbs / 14,51kg shells, 1913 Model
     Quick firing guns in casemate mounts
     on side, evenly spread
      2 - 1,25" / 31,8 mm guns in single mounts, 1,00lbs / 0,45kg shells, 1913 Model
     Anti-aircraft guns in deck mounts
     on side, evenly spread, all raised mounts
   Weight of broadside 3 226 lbs / 1 463 kg
   Shells per gun, main battery: 120
   4 - 20,0" / 508 mm submerged torpedo tubes

Armour:
   - Belts:      Width (max)   Length (avg)      Height (avg)
   Main:   4,00" / 102 mm   410,00 ft / 124,97 m   16,00 ft / 4,88 m
   Ends:   3,00" / 76 mm   180,00 ft / 54,86 m   10,00 ft / 3,05 m
     Main Belt covers 107% of normal length

   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   5,00" / 127 mm   2,50" / 64 mm      4,00" / 102 mm
   2nd:   5,00" / 127 mm   2,50" / 64 mm      4,50" / 114 mm
   3rd:   1,00" / 25 mm         -         1,00" / 25 mm

   - Armour deck: 1,00" / 25 mm, Conning tower: 4,00" / 102 mm

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 3 shafts, 67 347 shp / 50 241 Kw = 29,00 kts
   Range 8 000nm at 12,00 kts
   Bunker at max displacement = 2 271 tons (50% coal)

Complement:
   582 - 757

Cost:
   £1,196 million / $4,783 million

Distribution of weights at normal displacement:
   Armament: 397 tons, 3,2%
   Armour: 2 339 tons, 19,1%
      - Belts: 1 293 tons, 10,5%
      - Torpedo bulkhead: 0 tons, 0,0%
      - Armament: 500 tons, 4,1%
      - Armour Deck: 500 tons, 4,1%
      - Conning Tower: 46 tons, 0,4%
   Machinery: 2 813 tons, 22,9%
   Hull, fittings & equipment: 4 741 tons, 38,6%
   Fuel, ammunition & stores: 1 732 tons, 14,1%
   Miscellaneous weights: 250 tons, 2,0%

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     11 823 lbs / 5 363 Kg = 32,4 x 9,0 " / 229 mm shells or 1,5 torpedoes
   Stability (Unstable if below 1.00): 1,10
   Metacentric height 3,1 ft / 1,0 m
   Roll period: 15,4 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0,61
   Seaboat quality  (Average = 1.00): 1,08

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0,560
   Length to Beam Ratio: 9,08 : 1
   'Natural speed' for length: 24,29 kts
   Power going to wave formation at top speed: 54 %
   Trim (Max stability = 0, Max steadiness = 100): 65
   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:      30,00 ft / 9,14 m
      - Forecastle (20%):   24,00 ft / 7,32 m
      - Mid (28%):      24,00 ft / 7,32 m (16,00 ft / 4,88 m aft of break)
      - Quarterdeck (15%):   16,00 ft / 4,88 m
      - Stern:      16,00 ft / 4,88 m
      - Average freeboard:   18,72 ft / 5,71 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 105,8%
      - Above water (accommodation/working, high = better): 150,2%
   Waterplane Area: 27 016 Square feet or 2 510 Square metres
   Displacement factor (Displacement / loading): 108%
   Structure weight / hull surface area: 117 lbs/sq ft or 572 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,98
      - Longitudinal: 1,17
      - 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

[Guinness]

so what would be the gun layout on these ships? Twins at A, P, Y, with singles in Q and X maybe?

[Borys]

Ahoj!
All twins. A Q and Y are weather deck level, while X is superfiring over Y.
That is why X is raised and has thicker barbette armour.
Borys

[Jefgte]

A good ship Borys

-----------------------------
If you choose Peru Guns, it is  -  9.06" / 230 mm guns , 371.24lbs / 168.39kg shells

I use currently this good gun on my Escort Cruiser since 1901 on twin turrets.

During tests made by Escort Cruiser Pachacutec in 1908 on an old protected cruiser hull,
HE shells were very devastating. Hull & superstructures were looking like strainer after 4 hits.
Peru Admiralty considere that a few hits could disabled a Cruiser.


Jef  ;)

[Borys]

What is 0,06 between Friends ....

[Sachmle]

1mm and 0.09kg of shell weight  :P ;) :P ;)
*Runs away*

[Jefgte]

Borys wrote:
"What is 0,06 between Friends"

90-120-152-230-305-340

Peru calibers
230, not 229


Jef  ;)