1929 Ersatz Renown

Ersatz Renown, UK Battlecruiser laid down 1929

Displacement:
	25,124 t light; 26,500 t standard; 28,133 t normal; 29,439 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(775.00 ft / 755.00 ft) x 98.00 ft x (26.00 / 26.92 ft)
	(236.22 m / 230.12 m) x 29.87 m  x (7.92 / 8.20 m)

Armament:
      9 - 13.50" / 343 mm 45.0 cal guns - 1,410.96lbs / 640.00kg shells, 100 per gun
	  Breech loading guns in turret on barbette mounts, 1909 Model
	  3 x 3-gun mounts on centreline, evenly spread
      12 - 4.00" / 102 mm 45.0 cal guns - 31.00lbs / 14.06kg shells, 200 per gun
	  Dual purpose guns in deck mounts, 1929 Model
	  6 x Twin mounts on sides, evenly spread
		2 raised mounts
      80 - 1.57" / 40.0 mm 45.0 cal guns - 2.01lbs / 0.91kg shells, 750 per gun
	  Anti-air guns in deck mounts, 1923 Model
	  2 x 2 row octuple mounts on centreline ends, evenly spread
		2 raised mounts - superfiring
	  8 x 2 row octuple mounts on sides, aft evenly spread
      Weight of broadside 13,231 lbs / 6,002 kg
      Main Torpedoes
      6 - 21.0" / 533 mm, 15.00 ft / 4.57 m torpedoes - 1.043 t each, 6.259 t total
	submerged bow tubes

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	8.00" / 203 mm	520.95 ft / 158.79 m	12.00 ft / 3.66 m
	Ends:	Unarmoured
	  Main Belt covers 106 % of normal length

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		3.00" / 76 mm	520.95 ft / 158.79 m	26.00 ft / 7.92 m
	Beam between torpedo bulkheads 78.00 ft / 23.77 m

   - Hull void:
		6.00" / 152 mm	518.50 ft / 158.04 m	3.00 ft / 0.91 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	15.0" / 381 mm	4.70" / 119 mm		8.00" / 203 mm
	2nd:	2.00" / 51 mm	1.00" / 25 mm		      -

   - Protected deck - single deck:
	For and Aft decks: 4.00" / 102 mm
	Forecastle: 0.00" / 0 mm  Quarter deck: 2.00" / 51 mm

   - Conning towers: Forward 13.00" / 330 mm, Aft 0.00" / 0 mm

Machinery:
	Oil fired boilers, steam turbines,
	Geared drive, 4 shafts, 133,820 shp / 99,830 Kw = 31.00 kts
	Range 4,250nm at 18.00 kts
	Bunker at max displacement = 2,939 tons

Complement:
	1,085 - 1,411

Cost:
	£10.099 million / $40.398 million

Distribution of weights at normal displacement:
	Armament: 2,465 tons, 8.8 %
	   - Guns: 2,452 tons, 8.7 %
	   - Weapons: 13 tons, 0.0 %
	Armour: 8,806 tons, 31.3 %
	   - Belts: 2,088 tons, 7.4 %
	   - Torpedo bulkhead: 1,503 tons, 5.3 %
	   - Void: 345 tons, 1.2 %
	   - Armament: 1,307 tons, 4.6 %
	   - Armour Deck: 3,304 tons, 11.7 %
	   - Conning Tower: 259 tons, 0.9 %
	Machinery: 4,110 tons, 14.6 %
	Hull, fittings & equipment: 9,578 tons, 34.0 %
	Fuel, ammunition & stores: 3,009 tons, 10.7 %
	Miscellaneous weights: 165 tons, 0.6 %
	   - On freeboard deck: 50 tons
	   - Above deck: 115 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  39,633 lbs / 17,977 Kg = 32.2 x 13.5 " / 343 mm shells or 7.8 torpedoes
	Stability (Unstable if below 1.00): 1.36
	Metacentric height 8.4 ft / 2.6 m
	Roll period: 14.2 seconds
	Steadiness	- As gun platform (Average = 50 %): 50 %
			- Recoil effect (Restricted arc if above 1.00): 0.42
	Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
	Hull has rise forward of midbreak,
	  an extended bulbous bow and a cruiser stern
	Block coefficient (normal/deep): 0.512 / 0.517
	Length to Beam Ratio: 7.70 : 1
	'Natural speed' for length: 27.48 kts
	Power going to wave formation at top speed: 52 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 0.00 degrees
	Stern overhang: 8.00 ft / 2.44 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	16.00 %,  24.00 ft / 7.32 m,  24.00 ft / 7.32 m
	   - Forward deck:	50.00 %,  24.00 ft / 7.32 m,  24.00 ft / 7.32 m
	   - Aft deck:	19.00 %,  9.00 ft / 2.74 m,  9.00 ft / 2.74 m
	   - Quarter deck:	15.00 %,  9.00 ft / 2.74 m,  12.00 ft / 3.66 m
	   - Average freeboard:		19.13 ft / 5.83 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 104.4 %
		- Above water (accommodation/working, high = better): 173.8 %
	Waterplane Area: 49,835 Square feet or 4,630 Square metres
	Displacement factor (Displacement / loading): 103 %
	Structure weight / hull surface area: 183 lbs/sq ft or 894 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.99
		- Longitudinal: 1.11
		- Overall: 1.01
	Adequate machinery, storage, compartmentation space
	Excellent accommodation and workspace room

13.5"/45 Mark V(H)
4"/45 QF Mark V
2-pdr Mark VIII

Same range as HMS Hood - 7500nmi@14kt, 4250@18kt

Three 13.5" Turrets weigh 2452+455=2907t, 969t each

2 rotating compressed air catapults, 1 crane, 3 seaplanes, 1 enclosed hangar