Nagato (Hydro's version)

Nagato (1938 refit), Japanese Nagato-class battleship laid down 1919 (Engine 1938)

Displacement:
	50,871 t light; 53,713 t standard; 57,776 t normal; 61,026 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(754.59 ft / 736.78 ft) x 95.21 ft (Bulges 131.23 ft) x (31.17 / 33.16 ft)
	(230.00 m / 224.57 m) x 29.02 m (Bulges 40.00 m)  x (9.50 / 10.11 m)

Armament:
      10 - 16.14" / 410 mm 45.0 cal guns - 2,249.00lbs / 1,020.13kg shells, 90 per gun
	  Breech loading guns in turret on barbette mounts, 1921 Model
	  2 x 2-gun mounts on centreline ends, evenly spread
	  2 x 3-gun mounts on centreline ends, evenly spread
		2 raised mounts
      18 - 5.51" / 140 mm 55.0 cal guns - 83.78lbs / 38.00kg shells, 300 per gun
	  Breech loading guns in casemate mounts, 1914 Model
	  18 x Single mounts on sides, evenly spread
		18 hull mounts in casemates- Limited use in heavy seas
      16 - 3.94" / 100 mm 65.0 cal guns - 28.66lbs / 13.00kg shells, 400 per gun
	  Dual purpose guns in turret on barbette mounts, 1938 Model
	  4 x 2-gun mounts on sides, forward deck aft
		2 raised mounts - superfiring
	  4 x 2-gun mounts on sides, aft deck forward
		2 raised mounts - superfiring
      80 - 1.57" / 40.0 mm 56.0 cal guns - 2.21lbs / 1.00kg shells, 2,000 per gun
	  Anti-air guns in deck mounts, 1938 Model
	  10 x Quad mounts on sides, evenly spread
		4 raised mounts
      20 - 0.98" / 25.0 mm 60.0 cal guns - 0.57lbs / 0.26kg shells, 2,000 per gun
	  Anti-air guns in deck mounts, 1936 Model
	  20 x Single mounts on sides, evenly spread
		10 raised mounts
      Weight of broadside 24,645 lbs / 11,179 kg

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	15.7" / 400 mm	309.74 ft / 94.41 m	11.71 ft / 3.57 m
	Ends:	2.36" / 60 mm	394.19 ft / 120.15 m	11.71 ft / 3.57 m
	  32.84 ft / 10.01 m Unarmoured ends
	Upper:	5.91" / 150 mm	309.74 ft / 94.41 m	8.01 ft / 2.44 m
	  Main Belt covers 65 % of normal length

   - Torpedo Bulkhead - Additional damage containing bulkheads:
		5.91" / 150 mm	309.74 ft / 94.41 m	30.25 ft / 9.22 m
	Beam between torpedo bulkheads 85.37 ft / 26.02 m

   - Hull Bulges:
		1.97" / 50 mm	590.55 ft / 180.00 m	29.53 ft / 9.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	20.1" / 510 mm	13.7" / 348 mm		18.1" / 460 mm
	2nd:	8.27" / 210 mm	      -			      -
	3rd:	3.94" / 100 mm	2.56" / 65 mm		3.94" / 100 mm
	4th:	0.59" / 15 mm	      -			      -

   - Armoured deck - multiple decks:
	For and Aft decks: 8.27" / 210 mm
	Forecastle: 2.76" / 70 mm  Quarter deck: 2.76" / 70 mm

   - Conning towers: Forward 18.11" / 460 mm, Aft 18.11" / 460 mm

Machinery:
	Oil fired boilers, steam turbines,
	Geared drive, 4 shafts, 91,005 shp / 67,890 Kw = 25.29 kts
	Range 8,650nm at 16.00 kts
	Bunker at max displacement = 7,313 tons

Complement:
	1,863 - 2,422

Cost:
	£9.361 million / $37.444 million

Distribution of weights at normal displacement:
	Armament: 4,772 tons, 8.3 %
	   - Guns: 4,772 tons, 8.3 %
	Armour: 23,318 tons, 40.4 %
	   - Belts: 3,799 tons, 6.6 %
	   - Torpedo bulkhead: 2,047 tons, 3.5 %
	   - Bulges: 1,270 tons, 2.2 %
	   - Armament: 8,300 tons, 14.4 %
	   - Armour Deck: 6,736 tons, 11.7 %
	   - Conning Towers: 1,166 tons, 2.0 %
	Machinery: 2,492 tons, 4.3 %
	Hull, fittings & equipment: 19,989 tons, 34.6 %
	Fuel, ammunition & stores: 6,905 tons, 12.0 %
	Miscellaneous weights: 300 tons, 0.5 %
	   - Hull above water: 60 tons
	   - On freeboard deck: 140 tons
	   - Above deck: 100 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  115,785 lbs / 52,519 Kg = 55.1 x 16.1 " / 410 mm shells or 27.5 torpedoes
	Stability (Unstable if below 1.00): 1.18
	Metacentric height 6.3 ft / 1.9 m
	Roll period: 22.0 seconds
	Steadiness	- As gun platform (Average = 50 %): 73 %
			- Recoil effect (Restricted arc if above 1.00): 0.61
	Seaboat quality  (Average = 1.00): 1.47

Hull form characteristics:
	Hull has a flush deck,
	  a straight bulbous bow and large transom stern
	Block coefficient (normal/deep): 0.671 / 0.666
	Length to Beam Ratio: 5.61 : 1
	'Natural speed' for length: 31.93 kts
	Power going to wave formation at top speed: 50 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 25.00 degrees
	Stern overhang: 3.28 ft / 1.00 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	28.00 %,  31.17 ft / 9.50 m,  29.53 ft / 9.00 m
	   - Forward deck:	22.00 %,  29.53 ft / 9.00 m,  29.53 ft / 9.00 m
	   - Aft deck:	22.00 %,  29.53 ft / 9.00 m,  29.53 ft / 9.00 m
	   - Quarter deck:	28.00 %,  29.53 ft / 9.00 m,  29.53 ft / 9.00 m
	   - Average freeboard:		29.71 ft / 9.06 m

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 55.1 %
		- Above water (accommodation/working, high = better): 172.6 %
	Waterplane Area: 57,172 Square feet or 5,311 Square metres
	Displacement factor (Displacement / loading): 117 %
	Structure weight / hull surface area: 243 lbs/sq ft or 1,184 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.94
		- Longitudinal: 1.72
		- Overall: 1.00
	Excellent machinery, storage, compartmentation space
	Excellent accommodation and workspace room
	Ship has slow, easy roll, a good, steady gun platform
	Good seaboat, rides out heavy weather easily

Aviation facilities for two A6M2-N floatplanes, as well as internal hangar for same.