Oltrin Project Vispot Study 2 - 58,700 Ton Slow Battleship

Project Vispot 2, Oltrin State Battleship laid down 1936 (Engine 1939)

Displacement:
	51,100 t light; 54,090 t standard; 58,700 t normal; 62,388 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(811.17 ft / 792.65 ft) x 127.62 ft x (32.15 / 33.85 ft)
	(247.24 m / 241.60 m) x 38.90 m  x (9.80 / 10.32 m)

Armament:
      9 - 16.00" / 406 mm 50.0 cal guns - 2,168.09lbs / 983.43kg shells, 120 per gun
	  Breech loading guns in turret on barbette mounts, 1935 Model
	  3 x 3-gun mounts on centreline ends, majority forward
		1 raised mount - superfiring
      14 - 6.00" / 152 mm 50.0 cal guns - 114.33lbs / 51.86kg shells, 300 per gun
	  Quick firing guns in turret on barbette mounts, 1926 Model
	  6 x 2-gun mounts on sides, evenly spread
	  1 x 2-gun mount on centreline, forward deck centre
		1 double raised mount
      18 - 3.94" / 100 mm 40.0 cal guns - 29.24lbs / 13.26kg shells, 800 per gun
	  Dual purpose guns in deck and hoist mounts, 1932 Model
	  8 x 2-gun mounts on sides, evenly spread
		4 raised mounts
	  1 x 2-gun mount on centreline, aft deck forward
		1 double raised mount
      12 - 1.25" / 31.8 mm 60.0 cal guns - 1.07lbs / 0.49kg shells, 2,000 per gun
	  Anti-air guns in deck mounts, 1932 Model
	  6 x Twin mounts on sides, evenly spread
      Weight of broadside 21,653 lbs / 9,822 kg

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	14.6" / 370 mm	404.27 ft / 123.22 m	13.55 ft / 4.13 m
	Ends:	5.91" / 150 mm	388.39 ft / 118.38 m	13.55 ft / 4.13 m
	Upper:	4.33" / 110 mm	404.27 ft / 123.22 m	8.01 ft / 2.44 m
	  Main Belt covers 78 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
		2.56" / 65 mm	404.27 ft / 123.22 m	30.68 ft / 9.35 m
	Beam between torpedo bulkheads 88.25 ft / 26.90 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	18.5" / 470 mm	4.33" / 110 mm		17.0" / 432 mm
	2nd:	4.33" / 110 mm	2.36" / 60 mm		3.94" / 100 mm
	3rd:	1.57" / 40 mm	1.57" / 40 mm		1.57" / 40 mm

   - Protected deck - multiple decks:
	For and Aft decks: 8.50" / 216 mm
	Forecastle: 6.50" / 165 mm  Quarter deck: 6.50" / 165 mm

   - Conning towers: Forward 16.73" / 425 mm, Aft 0.00" / 0 mm

Machinery:
	Oil fired boilers, steam turbines,
	Geared drive, 3 shafts, 119,233 shp / 88,948 Kw = 26.40 kts
	Range 8,500nm at 18.00 kts
	Bunker at max displacement = 8,298 tons

Complement:
	1,885 - 2,451

Cost:
	£23.598 million / $94.393 million

Distribution of weights at normal displacement:
	Armament: 4,936 tons, 8.4 %
	   - Guns: 4,936 tons, 8.4 %
	Armour: 22,793 tons, 38.8 %
	   - Belts: 5,540 tons, 9.4 %
	   - Torpedo bulkhead: 1,174 tons, 2.0 %
	   - Armament: 4,320 tons, 7.4 %
	   - Armour Deck: 11,215 tons, 19.1 %
	   - Conning Tower: 544 tons, 0.9 %
	Machinery: 3,226 tons, 5.5 %
	Hull, fittings & equipment: 19,930 tons, 34.0 %
	Fuel, ammunition & stores: 7,600 tons, 12.9 %
	Miscellaneous weights: 215 tons, 0.4 %
	   - On freeboard deck: 100 tons
	   - Above deck: 115 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  117,871 lbs / 53,465 Kg = 57.6 x 16.0 " / 406 mm shells or 21.8 torpedoes
	Stability (Unstable if below 1.00): 1.28
	Metacentric height 11.2 ft / 3.4 m
	Roll period: 16.0 seconds
	Steadiness	- As gun platform (Average = 50 %): 64 %
			- Recoil effect (Restricted arc if above 1.00): 0.40
	Seaboat quality  (Average = 1.00): 1.28

Hull form characteristics:
	Hull has a flush deck,
	  a straight bulbous bow and a round stern
	Block coefficient (normal/deep): 0.632 / 0.638
	Length to Beam Ratio: 6.21 : 1
	'Natural speed' for length: 28.15 kts
	Power going to wave formation at top speed: 48 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 26.00 degrees
	Stern overhang: 4.59 ft / 1.40 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	24.50 %,  28.54 ft / 8.70 m,  22.97 ft / 7.00 m
	   - Forward deck:	40.00 %,  22.97 ft / 7.00 m,  25.59 ft / 7.80 m
	   - Aft deck:	11.00 %,  25.59 ft / 7.80 m,  25.59 ft / 7.80 m
	   - Quarter deck:	24.50 %,  25.59 ft / 7.80 m,  25.59 ft / 7.80 m
	   - Average freeboard:		24.97 ft / 7.61 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 77.8 %
		- Above water (accommodation/working, high = better): 189.1 %
	Waterplane Area: 76,198 Square feet or 7,079 Square metres
	Displacement factor (Displacement / loading): 116 %
	Structure weight / hull surface area: 223 lbs/sq ft or 1,089 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.98
		- Longitudinal: 1.29
		- Overall: 1.00
	Excellent machinery, storage, compartmentation space
	Excellent accommodation and workspace room
	Good seaboat, rides out heavy weather easily