1882-Class PCR [1882] (Calder)

1882-Class PCR, Calder Republic Protected Cruiser laid down 1882

Displacement:
	3,760 t light; 3,900 t standard; 4,552 t normal; 5,074 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(333.01 ft / 328.08 ft) x 49.21 ft x (16.40 / 17.95 ft)
	(101.50 m / 100.00 m) x 15.00 m  x (5.00 / 5.47 m)

Armament:
      2 - 8.27" / 210 mm 30.0 cal guns - 240.13lbs / 108.92kg shells, 60 per gun
	  Breech loading guns in turret on barbette mounts, 1880 Model
	  2 x Single mounts on centreline, evenly spread
      6 - 5.12" / 130 mm 33.0 cal guns - 57.53lbs / 26.10kg shells, 125 per gun
	  Quick firing guns in deck mounts, 1880 Model
	  6 x Single mounts on sides, evenly spread
      6 - 2.95" / 75.0 mm 30.0 cal guns - 10.94lbs / 4.96kg shells, 150 per gun
	  Breech loading guns in deck mounts, 1880 Model
	  6 x Single mounts on sides, evenly spread
      12 - 1.57" / 40.0 mm 35.0 cal guns - 1.69lbs / 0.77kg shells, 250 per gun
	  Quick firing guns in deck mounts, 1880 Model
	  12 x Single mounts on sides, evenly spread
		12 raised mounts
      Weight of broadside 911 lbs / 413 kg
      Main Torpedoes
      2 - 17.7" / 450 mm, 13.12 ft / 4.00 m torpedoes - 0.244 t each, 0.488 t total
	submerged bow & stern tubes
      2nd Torpedoes
      2 - 17.7" / 450 mm, 13.12 ft / 4.00 m torpedoes - 0.244 t each, 0.488 t total
	below water reloads

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

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		0.79" / 20 mm	295.28 ft / 90.00 m	15.06 ft / 4.59 m
	Beam between torpedo bulkheads 45.93 ft / 14.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	4.92" / 125 mm	1.97" / 50 mm		3.94" / 100 mm
	2nd:	1.57" / 40 mm	0.79" / 20 mm		      -
	3rd:	0.49" / 13 mm	      -			      -
	4th:	0.49" / 13 mm	      -			      -

   - Protected deck - single deck:
	For and Aft decks: 1.97" / 50 mm
	Forecastle: 1.97" / 50 mm  Quarter deck: 1.97" / 50 mm

   - Conning towers: Forward 5.91" / 150 mm, Aft 0.00" / 0 mm

Machinery:
	Coal fired boilers, complex reciprocating steam engines,
	Direct drive, 2 shafts, 7,800 ihp / 5,819 Kw = 18.00 kts
	Range 5,000nm at 10.00 kts
	Bunker at max displacement = 1,174 tons (100% coal)

Complement:
	276 - 360

Cost:
	£0.397 million / $1.587 million

Distribution of weights at normal displacement:
	Armament: 146 tons, 3.2 %
	   - Guns: 145 tons, 3.2 %
	   - Weapons: 2 tons, 0.0 %
	Armour: 742 tons, 16.3 %
	   - Torpedo bulkhead: 130 tons, 2.8 %
	   - Armament: 143 tons, 3.1 %
	   - Armour Deck: 434 tons, 9.5 %
	   - Conning Tower: 35 tons, 0.8 %
	Machinery: 1,570 tons, 34.5 %
	Hull, fittings & equipment: 1,302 tons, 28.6 %
	Fuel, ammunition & stores: 792 tons, 17.4 %
	Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  3,176 lbs / 1,441 Kg = 12.8 x 8.3 " / 210 mm shells or 4.5 torpedoes
	Stability (Unstable if below 1.00): 1.65
	Metacentric height 4.0 ft / 1.2 m
	Roll period: 10.4 seconds
	Steadiness	- As gun platform (Average = 50 %): 82 %
			- Recoil effect (Restricted arc if above 1.00): 0.21
	Seaboat quality  (Average = 1.00): 1.65

Hull form characteristics:
	Hull has raised forecastle,
	  a ram bow and a cruiser stern
	Block coefficient (normal/deep): 0.602 / 0.613
	Length to Beam Ratio: 6.67 : 1
	'Natural speed' for length: 18.11 kts
	Power going to wave formation at top speed: 49 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): -40.00 degrees
	Stern overhang: -6.56 ft / -2.00 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	20.00 %,  18.04 ft / 5.50 m,  18.04 ft / 5.50 m
	   - Forward deck:	30.00 %,  11.48 ft / 3.50 m,  11.48 ft / 3.50 m
	   - Aft deck:	35.00 %,  11.48 ft / 3.50 m,  11.48 ft / 3.50 m
	   - Quarter deck:	15.00 %,  11.48 ft / 3.50 m,  11.48 ft / 3.50 m
	   - Average freeboard:		12.80 ft / 3.90 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 131.1 %
		- Above water (accommodation/working, high = better): 93.7 %
	Waterplane Area: 11,826 Square feet or 1,099 Square metres
	Displacement factor (Displacement / loading): 106 %
	Structure weight / hull surface area: 87 lbs/sq ft or 426 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.94
		- Longitudinal: 1.72
		- Overall: 1.00
	Cramped machinery, storage, compartmentation space
	Adequate 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