Radiant-Class Heavy Cruiser [1929] (Mazantsi)

"Radiant"-Class, Mazantsi Dominion Heavy Cruiser laid down 1929

Displacement:
	12,362 t light; 13,150 t standard; 14,701 t normal; 15,941 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(604.94 ft / 600.00 ft) x 72.00 ft x (20.00 / 21.32 ft)
	(184.38 m / 182.88 m) x 21.95 m  x (6.10 / 6.50 m)

Armament:
      9 - 9.40" / 239 mm 52.0 cal guns - 469.14lbs / 212.80kg shells, 175 per gun
	  Breech loading guns in turret on barbette mounts, 1929 Model
	  3 x 3-gun mounts on centreline ends, majority forward
		1 raised mount - superfiring
      6 - 5.51" / 140 mm 50.0 cal guns - 88.63lbs / 40.20kg shells, 200 per gun
	  Quick firing guns in deck mounts, 1929 Model
	  6 x Single mounts on sides, evenly spread
      16 - 1.25" / 31.8 mm 58.0 cal guns - 1.06lbs / 0.48kg shells, 2,000 per gun
	  Anti-air guns in deck mounts, 1923 Model
	  4 x 2 row quad mounts on sides, evenly spread
      16 - 0.75" / 19.1 mm 60.0 cal guns - 0.23lbs / 0.10kg shells, 3,000 per gun
	  Machine guns in deck mounts, 1916 Model
	  8 x Twin mounts on sides, evenly spread
      Weight of broadside 4,775 lbs / 2,166 kg
      Main Torpedoes
      8 - 21.0" / 533 mm, 24.00 ft / 7.32 m torpedoes - 1.575 t each, 12.604 t total
	In 2 sets of deck mounted carriage/fixed tubes

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	7.00" / 178 mm	375.00 ft / 114.30 m	10.18 ft / 3.10 m
	Ends:	2.00" / 51 mm	225.00 ft / 68.58 m	10.18 ft / 3.10 m
	  Main Belt covers 96 % of normal length
	  Main Belt inclined -10.00 degrees (positive = in)

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		2.00" / 51 mm	375.00 ft / 114.30 m	18.77 ft / 5.72 m
	Beam between torpedo bulkheads 59.50 ft / 18.14 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	6.00" / 152 mm	4.00" / 102 mm		6.00" / 152 mm
	2nd:	3.00" / 76 mm	2.00" / 51 mm		      -
	3rd:	0.50" / 13 mm	      -			      -
	4th:	0.50" / 13 mm	      -			      -

   - Armoured deck - multiple decks:
	For and Aft decks: 2.00" / 51 mm
	Forecastle: 2.00" / 51 mm  Quarter deck: 2.00" / 51 mm

   - Conning towers: Forward 6.00" / 152 mm, Aft 0.00" / 0 mm

Machinery:
	Oil fired boilers, steam turbines,
	Geared drive, 2 shafts, 70,687 shp / 52,732 Kw = 29.40 kts
	Range 10,000nm at 14.00 kts
	Bunker at max displacement = 2,791 tons

Complement:
	666 - 867

Cost:
	£4.794 million / $19.175 million

Distribution of weights at normal displacement:
	Armament: 1,409 tons, 9.6 %
	   - Guns: 1,393 tons, 9.5 %
	   - Weapons: 16 tons, 0.1 %
	Armour: 3,939 tons, 26.8 %
	   - Belts: 1,308 tons, 8.9 %
	   - Torpedo bulkhead: 521 tons, 3.5 %
	   - Armament: 809 tons, 5.5 %
	   - Armour Deck: 1,223 tons, 8.3 %
	   - Conning Tower: 78 tons, 0.5 %
	Machinery: 2,171 tons, 14.8 %
	Hull, fittings & equipment: 4,693 tons, 31.9 %
	Fuel, ammunition & stores: 2,339 tons, 15.9 %
	Miscellaneous weights: 150 tons, 1.0 %
	   - Hull below water: 100 tons
	   - On freeboard deck: 50 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  22,760 lbs / 10,324 Kg = 54.8 x 9.4 " / 239 mm shells or 3.0 torpedoes
	Stability (Unstable if below 1.00): 1.20
	Metacentric height 4.3 ft / 1.3 m
	Roll period: 14.6 seconds
	Steadiness	- As gun platform (Average = 50 %): 51 %
			- Recoil effect (Restricted arc if above 1.00): 0.57
	Seaboat quality  (Average = 1.00): 1.02

Hull form characteristics:
	Hull has a flush deck,
	  a straight bulbous bow and large transom stern
	Block coefficient (normal/deep): 0.596 / 0.606
	Length to Beam Ratio: 8.33 : 1
	'Natural speed' for length: 28.07 kts
	Power going to wave formation at top speed: 56 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 10.00 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 %,  28.00 ft / 8.53 m,  24.00 ft / 7.32 m
	   - Forward deck:	30.00 %,  24.00 ft / 7.32 m,  18.00 ft / 5.49 m
	   - Aft deck:	35.00 %,  18.00 ft / 5.49 m,  18.00 ft / 5.49 m
	   - Quarter deck:	15.00 %,  18.00 ft / 5.49 m,  18.00 ft / 5.49 m
	   - Average freeboard:		20.42 ft / 6.22 m

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 95.6 %
		- Above water (accommodation/working, high = better): 179.9 %
	Waterplane Area: 32,789 Square feet or 3,046 Square metres
	Displacement factor (Displacement / loading): 115 %
	Structure weight / hull surface area: 131 lbs/sq ft or 641 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.97
		- Longitudinal: 1.29
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Excellent accommodation and workspace room

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Made using Carb's Cruiser Calculator; actual speed is 35 knots.