Rhode Island, United States Battleship laid down 1921

Rhode Island, United States Battleship laid down 1921

Displacement:
	43.746 t light; 46.567 t standard; 48.500 t normal; 50.046 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(721,78 ft / 721,78 ft) x 108,27 ft x (36,09 / 37,03 ft)
	(220,00 m / 220,00 m) x 33,00 m  x (11,00 / 11,29 m)

Armament:
      8 - 17,99" / 457 mm 47,0 cal guns - 3.849,93lbs / 1.746,30kg shells, 100 per gun
	  Breech loading guns in turret on barbette mounts, 1920 Model
	  4 x 2-gun mounts on centreline, evenly spread
		2 raised mounts
      16 - 5,00" / 127 mm 51,0 cal guns - 50,04lbs / 22,70kg shells, 250 per gun
	  Breech loading guns in deck and hoist mounts, 1921 Model
	  8 x 2-gun mounts on sides, evenly spread
      8 - 3,00" / 76,2 mm 235,0 cal guns - 13,01lbs / 5,90kg shells, 500 per gun
	  Breech loading guns in deck mounts, 1900 Model
	  8 x Single mounts on sides, evenly spread
      Weight of broadside 31.704 lbs / 14.381 kg

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	14,7" / 374 mm	461,94 ft / 140,80 m	16,40 ft / 5,00 m
	Ends:	2,99" / 76 mm	259,81 ft / 79,19 m	16,40 ft / 5,00 m
	  Main Belt covers 98 % of normal length
	  Main Belt inclined -12,00 degrees (positive = in)

   - Torpedo Bulkhead - Additional damage containing bulkheads:
		2,99" / 76 mm	461,94 ft / 140,80 m	34,06 ft / 10,38 m
	Beam between torpedo bulkheads 82,02 ft / 25,00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	15,7" / 400 mm	5,98" / 152 mm		11,8" / 300 mm
	2nd:	5,98" / 152 mm	5,98" / 152 mm		5,98" / 152 mm
	3rd:	2,99" / 76 mm	      -			      -

   - Armoured deck - multiple decks:
	For and Aft decks: 5,98" / 152 mm
	Forecastle: 2,99" / 76 mm  Quarter deck: 2,99" / 76 mm

   - Conning towers: Forward 15,98" / 406 mm, Aft 0,00" / 0 mm

Machinery:
	Oil fired boilers, steam turbines,
	Geared drive, 4 shafts, 115.380 shp / 86.074 Kw = 27,00 kts
	Range 12.000nm at 10,00 kts
	Bunker at max displacement = 3.479 tons

Complement:
	1.633 - 2.124

Cost:
	£11,703 million / $46,813 million

Distribution of weights at normal displacement:
	Armament: 5.201 tons, 10,7 %
	   - Guns: 5.201 tons, 10,7 %
	Armour: 17.143 tons, 35,3 %
	   - Belts: 5.340 tons, 11,0 %
	   - Torpedo bulkhead: 1.742 tons, 3,6 %
	   - Armament: 3.818 tons, 7,9 %
	   - Armour Deck: 5.785 tons, 11,9 %
	   - Conning Tower: 458 tons, 0,9 %
	Machinery: 3.973 tons, 8,2 %
	Hull, fittings & equipment: 17.429 tons, 35,9 %
	Fuel, ammunition & stores: 4.754 tons, 9,8 %
	Miscellaneous weights: 0 tons, 0,0 %

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  55.926 lbs / 25.368 Kg = 19,2 x 18,0 " / 457 mm shells or 9,0 torpedoes
	Stability (Unstable if below 1.00): 1,07
	Metacentric height 6,5 ft / 2,0 m
	Roll period: 17,9 seconds
	Steadiness	- As gun platform (Average = 50 %): 50 %
			- Recoil effect (Restricted arc if above 1.00): 0,97
	Seaboat quality  (Average = 1.00): 1,00

Hull form characteristics:
	Hull has rise forward of midbreak,
	  a normal bow and a cruiser stern
	Block coefficient (normal/deep): 0,602 / 0,605
	Length to Beam Ratio: 6,67 : 1
	'Natural speed' for length: 26,87 kts
	Power going to wave formation at top speed: 52 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): -12,00 degrees
	Stern overhang: 0,00 ft / 0,00 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	24,00 %,  26,25 ft / 8,00 m,  22,97 ft / 7,00 m
	   - Forward deck:	30,00 %,  22,97 ft / 7,00 m,  19,69 ft / 6,00 m
	   - Aft deck:	34,00 %,  18,04 ft / 5,50 m,  18,04 ft / 5,50 m
	   - Quarter deck:	12,00 %,  18,04 ft / 5,50 m,  18,04 ft / 5,50 m
	   - Average freeboard:		20,52 ft / 6,26 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 98,1 %
		- Above water (accommodation/working, high = better): 130,8 %
	Waterplane Area: 57.256 Square feet or 5.319 Square metres
	Displacement factor (Displacement / loading): 99 %
	Structure weight / hull surface area: 247 lbs/sq ft or 1.205 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0,95
		- Longitudinal: 1,55
		- Overall: 1,00
	Adequate machinery, storage, compartmentation space
	Excellent accommodation and workspace room

Belt split 406/254 above/below wl.
Barbettes split 406/76 above/below wl.

Guns used are
i) 18"/47 Mk 1
ii) 5"/51 Mk 15
iii) 3"/23 Mk 14

Verander block-coefficient naar ~0,62 als meer ruimte/tonnage nodig is.