Marvaren-Class Battleship [1880] (Oltrin)

Marvaren "Pearl"-Class, Oltrin Monarchy 2nd Class Battleship laid down 1880

Displacement:
	7,566 t light; 8,000 t standard; 9,045 t normal; 9,881 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(305.12 ft / 295.28 ft) x 59.06 ft x (32.81 / 35.21 ft)
	(93.00 m / 90.00 m) x 18.00 m  x (10.00 / 10.73 m)

Armament:
      4 - 12.00" / 305 mm 20.0 cal guns - 714.10lbs / 323.91kg shells, 100 per gun
	  Breech loading guns in turret on barbette mounts, 1880 Model
	  2 x Twin mounts on sides amidships
      8 - 6.00" / 152 mm 25.0 cal guns - 91.23lbs / 41.38kg shells, 200 per gun
	  Breech loading guns in casemate mounts, 1881 Model
	  8 x Single mounts on sides, evenly spread
      8 - 3.00" / 76.2 mm 25.0 cal guns - 10.79lbs / 4.90kg shells, 200 per gun
	  Breech loading guns in deck mounts, 1875 Model
	  8 x Single mounts on sides, evenly spread
      64 - 0.50" / 12.7 mm 30.0 cal guns - 0.04lbs / 0.02kg shells, 2,500 per gun
	  Breech loading guns in deck mounts, 1860 Model
	  8 x 2 row octuple mounts on sides, evenly spread
      Weight of broadside 3,675 lbs / 1,667 kg
      Main Torpedoes
      4 - 14.0" / 356 mm, 11.48 ft / 3.50 m torpedoes - 0.105 t each, 0.420 t total
	In 4 sets of deck mounted carriage/fixed tubes
      2nd Torpedoes
      12 - 14.0" / 356 mm, 11.48 ft / 3.50 m torpedoes - 0.105 t each, 1.261 t total
	below water reloads

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	20.0" / 508 mm	191.93 ft / 58.50 m	9.22 ft / 2.81 m
	Ends:	Unarmoured
	  Main Belt covers 100 % of normal length
	  Main Belt inclined 10.00 degrees (positive = in)

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		1.00" / 25 mm	191.93 ft / 58.50 m	30.18 ft / 9.20 m
	Beam between torpedo bulkheads 55.77 ft / 17.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	14.0" / 356 mm	12.0" / 305 mm		18.0" / 457 mm
	2nd:	6.00" / 152 mm	3.00" / 76 mm		6.00" / 152 mm

   - Armoured deck - multiple decks:
	For and Aft decks: 3.00" / 76 mm

   - Conning towers: Forward 16.00" / 406 mm, Aft 0.00" / 0 mm

Machinery:
	Coal fired boilers, simple reciprocating steam engines,
	Direct drive, 2 shafts, 4,804 ihp / 3,584 Kw = 14.00 kts
	Range 5,000nm at 10.00 kts
	Bunker at max displacement = 1,881 tons (100% coal)

Complement:
	463 - 602

Cost:
	£0.544 million / $2.177 million

Distribution of weights at normal displacement:
	Armament: 297 tons, 3.3 %
	   - Guns: 295 tons, 3.3 %
	   - Weapons: 2 tons, 0.0 %
	Armour: 3,550 tons, 39.2 %
	   - Belts: 1,603 tons, 17.7 %
	   - Torpedo bulkhead: 214 tons, 2.4 %
	   - Armament: 1,026 tons, 11.3 %
	   - Armour Deck: 556 tons, 6.1 %
	   - Conning Tower: 150 tons, 1.7 %
	Machinery: 993 tons, 11.0 %
	Hull, fittings & equipment: 2,601 tons, 28.8 %
	Fuel, ammunition & stores: 1,479 tons, 16.4 %
	Miscellaneous weights: 125 tons, 1.4 %
	   - On freeboard deck: 25 tons
	   - Above deck: 100 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  11,139 lbs / 5,053 Kg = 15.2 x 12.0 " / 305 mm shells or 38.3 torpedoes
	Stability (Unstable if below 1.00): 1.08
	Metacentric height 2.6 ft / 0.8 m
	Roll period: 15.3 seconds
	Steadiness	- As gun platform (Average = 50 %): 92 %
			- Recoil effect (Restricted arc if above 1.00): 0.78
	Seaboat quality  (Average = 1.00): 1.84

Hull form characteristics:
	Hull has a flush deck,
	  a ram bow and a cruiser stern
	Block coefficient (normal/deep): 0.553 / 0.563
	Length to Beam Ratio: 5.00 : 1
	'Natural speed' for length: 17.18 kts
	Power going to wave formation at top speed: 43 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): -25.00 degrees
	Stern overhang: 3.28 ft / 1.00 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	20.00 %,  18.04 ft / 5.50 m,  14.76 ft / 4.50 m
	   - Forward deck:	30.00 %,  14.76 ft / 4.50 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:		12.89 ft / 3.93 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 55.9 %
		- Above water (accommodation/working, high = better): 61.2 %
	Waterplane Area: 12,208 Square feet or 1,134 Square metres
	Displacement factor (Displacement / loading): 129 %
	Structure weight / hull surface area: 144 lbs/sq ft or 701 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.85
		- Longitudinal: 4.72
		- Overall: 1.00
	Excellent 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