HMS William Pitt the Elder, Great Britain Heavy Cruiser rev.

HMS William Pitt the Elder, Great Britain Large Heavy Cruiser laid down 1939 (Revised Version)

Displacement:
	15 710 t light; 16 468 t standard; 18 500 t normal; 20 126 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(630.64 ft / 623.36 ft) x 79.40 ft x (26.57 / 28.27 ft)
	(192.22 m / 190.00 m) x 24.20 m  x (8.10 / 8.62 m)

Armament:
      8 - 9.21" / 234 mm 50.0 cal guns - 409.99lbs / 185.97kg shells, 160 per gun
	  Breech loading guns in turret on barbette mounts, 1901 Model
	  2 x 2-gun mounts on centreline, forward evenly spread
		1 raised mount
	  2 x 2-gun mounts on centreline, aft evenly spread
		1 raised mount aft
      8 - 4.02" / 102 mm 45.0 cal guns - 31.00lbs / 14.06kg shells, 400 per gun
	  Quick firing guns in deck and hoist mounts, 1913 Model
	  2 x Single mounts on sides, forward deck centre
	  6 x Single mounts on sides, aft evenly spread
      16 - 1.57" / 40.0 mm 39.0 cal guns - 1.85lbs / 0.84kg shells, 2 500 per gun
	  Anti-air guns in deck mounts, 1923 Model
	  2 x Quad mounts on sides, forward deck centre
		2 raised mounts
	  2 x Quad mounts on sides, aft deck centre
		2 raised mounts
      Weight of broadside 3 558 lbs / 1 614 kg
      Main Torpedoes
      6 - 21.0" / 533 mm, 23.87 ft / 7.28 m torpedoes - 1.606 t each, 9.636 t total
	In 2 sets of deck mounted side rotating tubes
      2nd Torpedoes
      6 - 21.0" / 533 mm, 23.87 ft / 7.28 m torpedoes - 1.606 t each, 9.636 t total
	below water reloads

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	7.05" / 179 mm	393.70 ft / 120.00 m	13.78 ft / 4.20 m
	Ends:	2.99" / 76 mm	229.66 ft / 70.00 m	8.20 ft / 2.50 m
	  Main Belt covers 97 % of normal length
	  Main Belt inclined -12.00 degrees (positive = in)

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		1.50" / 38 mm	393.70 ft / 120.00 m	22.97 ft / 7.00 m
	Beam between torpedo bulkheads 60.37 ft / 18.40 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	9.02" / 229 mm	6.50" / 165 mm		6.30" / 160 mm
	2nd:	      -		      -			4.02" / 102 mm

   - Armoured deck - single deck:
	For and Aft decks: 4.02" / 102 mm
	Forecastle: 1.50" / 38 mm  Quarter deck: 2.99" / 76 mm

   - Conning towers: Forward 9.02" / 229 mm, Aft 0.00" / 0 mm

Machinery:
	Oil fired boilers, steam turbines,
	Geared drive, 4 shafts, 113 555 shp / 84 712 Kw = 32.00 kts
	Range 10 000nm at 16.00 kts
	Bunker at max displacement = 3 658 tons

Complement:
	793 - 1 031

Cost:
	£7.861 million / $31.445 million

Distribution of weights at normal displacement:
	Armament: 1 133 tons, 6.1 %
	   - Guns: 1 102 tons, 6.0 %
	   - Weapons: 31 tons, 0.2 %
	Armour: 5 680 tons, 30.7 %
	   - Belts: 1 830 tons, 9.9 %
	   - Torpedo bulkhead: 500 tons, 2.7 %
	   - Armament: 945 tons, 5.1 %
	   - Armour Deck: 2 268 tons, 12.3 %
	   - Conning Tower: 136 tons, 0.7 %
	Machinery: 3 072 tons, 16.6 %
	Hull, fittings & equipment: 5 525 tons, 29.9 %
	Fuel, ammunition & stores: 2 790 tons, 15.1 %
	Miscellaneous weights: 300 tons, 1.6 %
	   - On freeboard deck: 50 tons
	   - Above deck: 250 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  27 370 lbs / 12 415 Kg = 70.0 x 9.2 " / 234 mm shells or 3.5 torpedoes
	Stability (Unstable if below 1.00): 1.16
	Metacentric height 4.7 ft / 1.4 m
	Roll period: 15.4 seconds
	Steadiness	- As gun platform (Average = 50 %): 50 %
			- Recoil effect (Restricted arc if above 1.00): 0.34
	Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
	Hull has rise forward of midbreak,
	  a normal bow and small transom stern
	Block coefficient (normal/deep): 0.492 / 0.503
	Length to Beam Ratio: 7.85 : 1
	'Natural speed' for length: 27.11 kts
	Power going to wave formation at top speed: 58 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 14.00 degrees
	Stern overhang: -3.28 ft / -1.00 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	24.84 %,  29.20 ft / 8.90 m,  27.89 ft / 8.50 m
	   - Forward deck:	21.00 %,  27.89 ft / 8.50 m,  27.89 ft / 8.50 m
	   - Aft deck:	42.16 %,  15.75 ft / 4.80 m,  15.75 ft / 4.80 m
	   - Quarter deck:	12.00 %,  15.75 ft / 4.80 m,  15.75 ft / 4.80 m
	   - Average freeboard:		21.44 ft / 6.54 m

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 97.1 %
		- Above water (accommodation/working, high = better): 156.7 %
	Waterplane Area: 33 527 Square feet or 3 115 Square metres
	Displacement factor (Displacement / loading): 118 %
	Structure weight / hull surface area: 133 lbs/sq ft or 648 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.95
		- Longitudinal: 1.56
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Excellent accommodation and workspace room

###Notes

##Armament

Primary Battery
    8x 9.2in Mark XI
    2x2 A-Bs-Xs-Y in 2-gun turret-on-barbette mounts
    http://www.navweaps.com/Weapons/WNBR_92-50_mk11.php
    185.97kg, 160 rounds, N/A life, 3-5rpm, N/A Range
    New mount would have higher elevation
    Friedman states the 9.2in guns recovered for the Churchill cruiser would have fired 410lbs shells
    Given a new shell and new elevation, range is impossible to estimate

Heavy AA Battery
    8x 4in Mark V
    8x single mounts sides
    http://www.navweaps.com/Weapons/WNBR_4-45_mk5.php
    14.06kg, 400 rounds, 850 life, 14 rpm, 15020m range, 9450m AA ceiling


Light AA Battery
    16x 2-pdr QF Mark VIII
    4x quadruple mark VII mounts sides
    http://www.navweaps.com/Weapons/WNBR_2pounder_m8.php
    0.82kg, 2500 rounds, 7200 life, 98 rpm, 1550m range, 3960m AA ceiling

Torpedoes
    6x 21in Mark IX**
    2x3 Torpedo launchers, amidships, side rotating
    2x3 Underwater reloads
    http://www.navweaps.com/Weapons/WTBR_WWII.php#21%22_%2853.3_cm%29_Mark_IX_and_IX%2A%2A
    7.277m, 327kg TNT, 10050m@41kts, 13700@35kts

##Armour

Citadel
    Citadel is 32m Magazines, 88m Machinery
    Citadel is 120m long, 60% of waterline length

Belt
    Belt is 4.2m@12deg for 4.1m overall vertical height
    Armour deck is 3.2 above waterline
    Belt extends 0.9m below waterline

Barbettes
    Barbettes are 203mm above deck, 51mm below deck
    Barbette average is 160mm

##Aircraft Arrangements

    1x Cross-deck catapult [50t OD]
    2x Heavy duty cranes [50t AD]
    4x Seaplanes (Supermarine Walrus) [80t AD]
    4x Hangar space [120t AD]
    Total: 250t AD, 50t OD