1937 Rurik

Rurik, VMF Large Cruiser laid down 1937

Displacement:
	19,701 t light; 20,678 t standard; 22,000 t normal; 23,057 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(672.57 ft / 646.33 ft) x 68.90 ft x (31.17 / 32.31 ft)
	(205.00 m / 197.00 m) x 21.00 m  x (9.50 / 9.85 m)

Armament:
      4 - 14.96" / 380 mm 47.0 cal guns - 1,763.70lbs / 800.00kg shells, 90 per gun
	  Breech loading guns in deck and hoist mounts, 1934 Model
	  4 x Single mounts on centreline, aft evenly spread
      10 - 5.91" / 150 mm 55.0 cal guns - 99.87lbs / 45.30kg shells, 140 per gun
	  Quick firing guns in casemate mounts, 1928 Model
	  10 x Single mounts on sides, aft evenly spread
      12 - 4.13" / 105 mm 65.0 cal guns - 34.83lbs / 15.80kg shells, 400 per gun
	  Dual purpose guns in deck and hoist mounts, 1933 Model
	  4 x Twin mounts on sides, aft evenly spread
	  2 x Twin mounts on centreline, aft evenly spread
      40 - 0.79" / 20.0 mm 65.0 cal guns - 0.31lbs / 0.14kg shells, 2,000 per gun
	  Breech loading guns in deck mounts, 1930 Model
	  8 x 2 row quad mounts on sides, aft evenly spread
	  2 x 2 row quad mounts on centreline ends, evenly spread
      Weight of broadside 8,484 lbs / 3,848 kg

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	9.06" / 230 mm	452.76 ft / 138.00 m	19.69 ft / 6.00 m
	Ends:	9.06" / 230 mm	193.57 ft / 59.00 m	19.69 ft / 6.00 m
	Upper:	9.06" / 230 mm	127.95 ft / 39.00 m	9.84 ft / 3.00 m
	  Main Belt covers 108 % of normal length

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		3.94" / 100 mm	452.43 ft / 137.90 m	26.25 ft / 8.00 m
	Beam between torpedo bulkheads 49.21 ft / 15.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	9.06" / 230 mm	9.06" / 230 mm		9.06" / 230 mm
	2nd:	9.06" / 230 mm	9.06" / 230 mm		9.06" / 230 mm
	3rd:	1.97" / 50 mm	1.97" / 50 mm		1.97" / 50 mm
	4th:	0.39" / 10 mm	      -			      -

   - Armoured deck - single deck:
	For and Aft decks: 3.35" / 85 mm
	Forecastle: 3.35" / 85 mm  Quarter deck: 3.35" / 85 mm

   - Conning towers: Forward 9.06" / 230 mm, Aft 0.00" / 0 mm

Machinery:
	Oil fired boilers, steam turbines,
	Geared drive, 3 shafts, 105,000 shp / 78,330 Kw = 31.01 kts
	Range 7,200nm at 14.00 kts
	Bunker at max displacement = 2,379 tons

Complement:
	903 - 1,174

Cost:
	£10.402 million / $41.608 million

Distribution of weights at normal displacement:
	Armament: 1,777 tons, 8.1 %
	   - Guns: 1,777 tons, 8.1 %
	Armour: 10,359 tons, 47.1 %
	   - Belts: 5,227 tons, 23.8 %
	   - Torpedo bulkhead: 1,730 tons, 7.9 %
	   - Armament: 1,220 tons, 5.5 %
	   - Armour Deck: 2,029 tons, 9.2 %
	   - Conning Tower: 153 tons, 0.7 %
	Machinery: 2,910 tons, 13.2 %
	Hull, fittings & equipment: 4,551 tons, 20.7 %
	Fuel, ammunition & stores: 2,299 tons, 10.4 %
	Miscellaneous weights: 105 tons, 0.5 %
	   - On freeboard deck: 60 tons
	   - Above deck: 45 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  24,026 lbs / 10,898 Kg = 14.4 x 15.0 " / 380 mm shells or 3.9 torpedoes
	Stability (Unstable if below 1.00): 1.00
	Metacentric height 2.8 ft / 0.9 m
	Roll period: 17.1 seconds
	Steadiness	- As gun platform (Average = 50 %): 46 %
			- Recoil effect (Restricted arc if above 1.00): 0.84
	Seaboat quality  (Average = 1.00): 0.74

Hull form characteristics:
	Hull has a flush deck,
	  an extended bulbous bow and large transom stern
	Block coefficient (normal/deep): 0.555 / 0.561
	Length to Beam Ratio: 9.38 : 1
	'Natural speed' for length: 28.98 kts
	Power going to wave formation at top speed: 56 %
	Trim (Max stability = 0, Max steadiness = 100): 57
	Bow angle (Positive = bow angles forward): 45.00 degrees
	Stern overhang: 0.00 ft / 0.00 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	20.00 %,  26.25 ft / 8.00 m,  26.25 ft / 8.00 m
	   - Forward deck:	1.50 %,  26.25 ft / 8.00 m,  16.40 ft / 5.00 m
	   - Aft deck:	68.50 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
	   - Quarter deck:	10.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
	   - Average freeboard:		18.45 ft / 5.62 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 107.5 %
		- Above water (accommodation/working, high = better): 113.2 %
	Waterplane Area: 32,503 Square feet or 3,020 Square metres
	Displacement factor (Displacement / loading): 92 %
	Structure weight / hull surface area: 138 lbs/sq ft or 673 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.97
		- Longitudinal: 1.22
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Adequate accommodation and workspace room
	Poor seaboat, wet and uncomfortable, reduced performance in heavy weather