Dominion-Class Protected Cruiser [1879] (Mazantsi)

Dominion-Class, Mazantsi Dominion Turreted Protected Cruiser laid down 1879

Displacement:
	2,685 t light; 2,800 t standard; 3,505 t normal; 4,069 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(252.00 ft / 250.00 ft) x 50.00 ft x (18.00 / 20.27 ft)
	(76.81 m / 76.20 m) x 15.24 m  x (5.49 / 6.18 m)

Armament:
      4 - 9.40" / 239 mm 15.0 cal guns - 336.14lbs / 152.47kg shells, 60 per gun
	  Muzzle loading guns in Coles/Ericsson turret mounts, 1879 Model
	  2 x Twin mounts on centreline, evenly spread
      24 - 0.25" / 6.4 mm 50.0 cal guns - 0.01lbs / 0.00kg shells, 2,500 per gun
	  Breech loading guns in deck mounts, 1879 Model
	  4 x 2 row sextuple mounts on sides, evenly spread
      Weight of broadside 1,345 lbs / 610 kg

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Ends:	Unarmoured

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		1.00" / 25 mm	162.50 ft / 49.53 m	16.56 ft / 5.05 m
	Beam between torpedo bulkheads 50.00 ft / 15.24 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	9.00" / 229 mm	9.00" / 229 mm		      -

   - Protected deck - single deck:
	For and Aft decks: 1.25" / 32 mm
	Forecastle: 1.00" / 25 mm  Quarter deck: 1.00" / 25 mm

   - Conning towers: Forward 4.00" / 102 mm, Aft 0.00" / 0 mm

Machinery:
	Coal fired boilers, simple reciprocating steam engines,
	Direct drive, 2 shafts, 3,695 ihp / 2,757 Kw = 15.00 kts
	Range 5,800nm at 10.00 kts
	Bunker at max displacement = 1,268 tons (100% coal)

Complement:
	227 - 296

Cost:
	£0.245 million / $0.978 million

Distribution of weights at normal displacement:
	Armament: 99 tons, 2.8 %
	   - Guns: 99 tons, 2.8 %
	Armour: 526 tons, 15.0 %
	   - Torpedo bulkhead: 100 tons, 2.8 %
	   - Armament: 212 tons, 6.0 %
	   - Armour Deck: 195 tons, 5.6 %
	   - Conning Tower: 20 tons, 0.6 %
	Machinery: 774 tons, 22.1 %
	Hull, fittings & equipment: 1,286 tons, 36.7 %
	Fuel, ammunition & stores: 820 tons, 23.4 %
	Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  3,934 lbs / 1,785 Kg = 11.3 x 9.4 " / 239 mm shells or 1.3 torpedoes
	Stability (Unstable if below 1.00): 1.53
	Metacentric height 3.6 ft / 1.1 m
	Roll period: 11.0 seconds
	Steadiness	- As gun platform (Average = 50 %): 91 %
			- Recoil effect (Restricted arc if above 1.00): 0.47
	Seaboat quality  (Average = 1.00): 1.82

Hull form characteristics:
	Hull has a flush deck,
	  a ram bow and a cruiser stern
	Block coefficient (normal/deep): 0.545 / 0.562
	Length to Beam Ratio: 5.00 : 1
	'Natural speed' for length: 15.81 kts
	Power going to wave formation at top speed: 50 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): -5.00 degrees
	Stern overhang: -3.00 ft / -0.91 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	20.00 %,  16.00 ft / 4.88 m,  14.00 ft / 4.27 m
	   - Forward deck:	30.00 %,  14.00 ft / 4.27 m,  11.00 ft / 3.35 m
	   - Aft deck:	35.00 %,  11.00 ft / 3.35 m,  11.00 ft / 3.35 m
	   - Quarter deck:	15.00 %,  11.00 ft / 3.35 m,  11.00 ft / 3.35 m
	   - Average freeboard:		12.21 ft / 3.72 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 83.7 %
		- Above water (accommodation/working, high = better): 85.2 %
	Waterplane Area: 8,683 Square feet or 807 Square metres
	Displacement factor (Displacement / loading): 142 %
	Structure weight / hull surface area: 110 lbs/sq ft or 536 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.87
		- Longitudinal: 3.57
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Cramped accommodation and workspace room
	Ship has slow, easy roll, a good, steady gun platform
	Excellent seaboat, comfortable, can fire her guns in the heaviest weather