WesWorld

Extreme cheating that i have no intention of building. However it is not noticeable cheating. E.g. 770x105x31x0.6/35=42966. with 3000t fuel it is under the 40kt limit.

MM Italia, Italian Battleship laid down 1937

Displacement:
43,164 t light; 46,500 t standard; 49,443 t normal; 51,599 t full load
Loading submergence 1,770 tons/feet

Dimensions:
780.00 ft x 106.00 ft x 32.20 ft (normal load)
237.74 m x 32.31 m x 9.81 m

Armament:
16 - 15.00" / 381 mm guns (4 Main turrets x 4 guns, 1 superfiring turret)
OR
12 - 16.50"/420 mm guns (3 Main turrets x 4 guns, 1 superfiring turret)
OR
9 - 18.00"/456 mm guns (3 Main turrets x 3 guns, 1 superfiring turret)

16 - 5.12" / 130 mm guns (8 2nd turrets x 2 guns)
48 - 1.57" / 40 mm AA guns
Weight of broadside 28,167 lbs / 12,777 kg

Armour:
Belt 15.00" / 381 mm, ends unarmoured
Belts cover 91 % of normal area
Main turrets 15.00" / 381 mm, 2nd turrets 2.00" / 51 mm
Armour deck 7.00" / 178 mm, Conning tower 3.00" / 76 mm
Torpedo bulkhead 1.75" / 44 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 99,495 shp / 74,223 Kw = 26.00 kts
Range 9,000nm at 15.00 kts

Complement:
1,657 - 2,155

Cost:
£26.479 million / $105.914 million

Distribution of weights at normal displacement:
Armament: 3,521 tons, 7.1 %
Armour: 17,983 tons, 36.4 %
Belts: 3,627 tons, 7.3 %, Armament: 5,189 tons, 10.5 %, Armour Deck: 8,023 tons, 16.2 %
Conning Tower: 88 tons, 0.2 %, Torpedo bulkhead: 1,057 tons, 2.1 %
Machinery: 2,758 tons, 5.6 %
Hull, fittings & equipment: 18,902 tons, 38.2 %
Fuel, ammunition & stores: 6,278 tons, 12.7 %
Miscellaneous weights: 0 tons, 0.0 %

Metacentric height 6.0

Remarks:
Hull space for machinery, storage & compartmentation is adequate
Room for accommodation & workspaces is excellent

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.05
Shellfire needed to sink: 48,042 lbs / 21,791 Kg = 28.5 x 15.0 " / 381 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 6.3
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 61 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.83
Relative quality as seaboat: 1.14

Hull form characteristics:
Block coefficient: 0.650
Sharpness coefficient: 0.42
Hull speed coefficient 'M': 6.50
'Natural speed' for length: 27.93 kts
Power going to wave formation at top speed: 47 %
Trim: 54
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 90.5 %
Relative accommodation and working space: 142.4 %
(Average = 100%)
Displacement factor: 96 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.99
(Structure weight / hull surface area: 223 lbs / square foot or 1,090 Kg / square metre)
Relative longitudinal hull strength: 1.07
(for 20.00 ft / 6.10 m average freeboard, freeboard adjustment -0.85 ft)
Relative composite hull strength: 1.00

That is one kick-butt Treaty (somewhat) un-compliant battleship.

Bad time for it though, since the Treaty expired just before it was laid down, and initial indications are that 50ktons and 16.5" guns will be allowed by then. So it will be occupying your big slips while the rest of us are building even nastier things...

But it is an impressive beast, compliant or not.

I would tend to echo Kuznetsovs opinion, and for another 3500 tons you may be able to take care of the ships only poor quality, its speed and perhaps increase the torpedo bulkhead thickness. That would give the design some chance against Rocky's carriers....

hmmm...
237 meters multiplied by 32 meters multiplied by 9.5 meters multiplied by... lets keep the BC at 0.60...
That divided by 1.0161 is 42,544 tons. Normal displacement. They say the range is about 10000 NM at 15, thus this type of ship would require some 3,200 tons of fuel... so that would put the standard displacement under 40,000 tons!
Observers observe the 18 inch guns. Stretch out their measuring tape and look. "18?" *Pull harder* "No 15 inches"
Still known for their honesty, the Japanese observers measuring the Italian Battleship (and an Iberian Cruiser 13 years earlier) have come to the conclusion that the ship is below the 40,000 ton limit and guns are of a caliber of 15 inch.

Note: the observers were last seen loading several crates with Italian gold aboard their ship, storing it next to the Iberian gold already in the hold (still there after 13 years).

Quoted

That would give the design some chance against Rocky's carriers....

Which ones? His Indian carriers or his German Carriers?

I agree that it is a bit late for that design. If you were to start building it in 1937, I'll be starting construction (or am already constructing) the first ship of the Yamato class, and I'm already beefing up my carrier force by then.

Walter

As i previously said, i have no intention of building this leviathon, it was just an exercise to see what could be done. As walter and i have mathematically proved, it could be under the 40,000t limit.

Also i think it would be a good battle against a Yamato. especially the 16 gun version. So many shells are going to destroy anything.

Italy will probably not build ships larger than 40,000t because they are too expensive, take too long to build and they cannot be in the right place all the time. Lots of very capable 30kt ships with 15" guns, able to be mass produced on type 3 slips is a much better use of resources.

An even better use of resources would be to develop atomic weapons.....

Which Yamato? One of the historical Yamato class or one of the Wesworld Yamato class?

Walter

Historical Yamato. its up to you what form she would take.