Roma Class

Roma Class, SPQO:Navy B laid down 1898
== Displacement: ==
           	11.501 t light; 12.125 t standard; 13.129 t normal; 13.932 t full load
=== Dimensions: Length (overall / waterline) x beam x draught (normal/deep) ===
           	(431,00 ft / 421,00 ft) x 75,00 ft x (27,00 / 28,29 ft)
           	(131,37 m / 128,32 m) x 22,86 m  x (8,23 / 8,62 m)
== Armament: ==
 	4 - 12,00" / 305 mm 42,0 cal guns - 837,82lbs / 380,03kg shells, 110 per gun
           	  Breech loading guns in turret on barbette mounts, 1898 Model
           	  2 x 2-gun mounts on centreline ends, evenly spread
 	14 - 6,00" / 152 mm 40,0 cal guns - 103,51lbs / 46,95kg shells, 180 per gun
           	  Breech loading guns in casemate mounts, 1898 Model
           	  14 x Single mounts on sides, evenly spread
                          	4 raised mounts
 	16 - 2,24" / 57,0 mm 39,0 cal guns - 5,38lbs / 2,44kg shells, 240 per gun
           	  Quick firing guns in deck mounts, 1898 Model
           	  16 x Single mounts on sides, evenly spread
           	            	8 raised mounts
 	Weight of broadside 4.886 lbs / 2.216 kg
== Armour: ==
  - Belts:            	Width (max)       	Length (avg)                     	Height (avg)
           	Main:  	12,0" / 305 mm  	263,00 ft / 80,16 m          	10,00 ft / 3,05 m
           	Ends:  	6,00" / 152 mm  	158,00 ft / 48,16 m          	12,00 ft / 3,66 m
           	Upper:	6,00" / 152 mm  	263,00 ft / 80,16 m          	6,00 ft / 1,83 m
           	  Main Belt covers 96 % of normal length
===   - Torpedo Bulkhead - Strengthened structural bulkheads: ===
                          	1,00" / 25 mm    	265,00 ft / 80,77 m          	26,00 ft / 7,92 m
           	Beam between torpedo bulkheads 60,00 ft / 18,29 m
===   - Gun armour:	===
Face (max)         	Other gunhouse (avg)      	Barbette/hoist (max)
           	Main:  	13,0" / 330 mm  	8,00" / 203 mm                 	12,0" / 305 mm
           	2nd:    	4,00" / 102 mm  	  	-                                   	  	-
           	3rd:     	1,00" / 25 mm    	  	-                                   	  	-
===   - Armoured deck - multiple decks: ===
           	For and Aft decks: 3,00" / 76 mm
           	Forecastle: 2,00" / 51 mm  Quarter deck: 2,00" / 51 mm
===   - Conning towers: ===
Forward 6,00" / 152 mm, Aft 2,00" / 51 mm
== Machinery: ==
           	Coal fired boilers, complex reciprocating steam engines,
           	Direct drive, 2 shafts, 12.688 ihp / 9.466 Kw = 18,00 kts
           	Range 6.000nm at 10,00 kts
           	Bunker at max displacement = 1.808 tons (100% coal)
== Complement: ==
           	613 - 797
== Cost: ==
           	£1,046 million / $4,183 million
=== Distribution of weights at normal displacement: ===
           	Armament: 891 tons, 6,8 %
           	   - Guns: 891 tons, 6,8 %
           	Armour: 4.713 tons, 35,9 %
           	   - Belts: 2.257 tons, 17,2 %
           	   - Torpedo bulkhead: 255 tons, 1,9 %
           	   - Armament: 960 tons, 7,3 %
           	   - Armour Deck: 1.145 tons, 8,7 %
           	   - Conning Towers: 96 tons, 0,7 %
           	Machinery: 2.047 tons, 15,6 %
           	Hull, fittings & equipment: 3.651 tons, 27,8 %
           	Fuel, ammunition & stores: 1.628 tons, 12,4 %
           	Miscellaneous weights: 200 tons, 1,5 %
           	   - On freeboard deck: 100 tons
           	   - Above deck: 100 tons
=== Overall survivability and seakeeping ability: ===
           	Survivability (Non-critical penetrating hits needed to sink ship):
           	  17.807 lbs / 8.077 Kg = 20,6 x 12,0 " / 305 mm shells or 3,1 torpedoes
           	Stability (Unstable if below 1.00): 1,27
           	Metacentric height 5,0 ft / 1,5 m
           	Roll period: 14,1 seconds
           	Steadiness         	- As gun platform (Average = 50 %): 95 %
                                          	- Recoil effect (Restricted arc if above 1.00): 0,57
           	Seaboat quality  (Average = 1.00): 1,89
=== Hull form characteristics: ===
           	Hull has a flush deck,
           	  a ram bow and a cruiser stern
           	Block coefficient (normal/deep): 0,539 / 0,546
           	Length to Beam Ratio: 5,61 : 1
           	'Natural speed' for length: 20,52 kts
           	Power going to wave formation at top speed: 45 %
           	Trim (Max stability = 0, Max steadiness = 100): 50
           	Bow angle (Positive = bow angles forward): 19,00 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 %,  18,00 ft / 5,49 m,  18,00 ft / 5,49 m
           	   - Forward deck: 30,00 %,  18,00 ft / 5,49 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:                    	18,00 ft / 5,49 m
           	Ship tends to be wet forward
=== Ship space, strength and comments: ===
           	Space  	- Hull below water (magazines/engines, low = better): 96,0 %
                          	- Above water (accommodation/working, high = better): 122,0 %
           	Waterplane Area: 21.810 Square feet or 2.026 Square metres
           	Displacement factor (Displacement / loading): 106 %
           	Structure weight / hull surface area: 134 lbs/sq ft or 652 Kg/sq metre
           	Hull strength (Relative):
                          	- Cross-sectional: 0,90
                          	- Longitudinal: 2,50
                          	- Overall: 1,00
           	Adequate machinery, storage, compartmentation space
           	Excellent 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
Category:Octavia
Category:Ship
Category:Battleship