1922 MN Roncevaux

Roncevaux, France Heavy Cruiser laid down 1922

Displacement:
	9,488 t light; 10,000 t standard; 10,861 t normal; 11,550 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(664.87 ft / 656.17 ft) x 59.06 ft x (21.33 / 22.29 ft)
	(202.65 m / 200.00 m) x 18.00 m  x (6.50 / 6.79 m)

Armament:
      6 - 7.99" / 203 mm 50.0 cal guns - 270.21lbs / 122.57kg shells, 150 per gun
	  Breech loading guns in deck and hoist mounts, 1922 Model
	  2 x Twin mounts on centreline ends, evenly spread
	  2 x Single mounts on centreline ends, evenly spread
		2 raised mounts
      12 - 4.72" / 120 mm 45.0 cal guns - 53.17lbs / 24.12kg shells, 450 per gun
	  Dual purpose guns in deck mounts, 1922 Model
	  4 x Twin mounts on centreline, aft deck aft
	  2 x Twin mounts on centreline, evenly spread
		2 double raised mounts
      Weight of broadside 2,259 lbs / 1,025 kg
      Main Torpedoes
      16 - 21.0" / 533 mm, 27.17 ft / 8.28 m torpedoes - 1.732 t each, 27.716 t total
	In 4 sets of deck mounted side rotating tubes
      2nd Torpedoes
      16 - 21.0" / 533 mm, 27.17 ft / 8.28 m torpedoes - 1.732 t each, 27.716 t total
	In 4 sets of deck mounted reloads

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	5.22" / 133 mm	482.28 ft / 147.00 m	5.25 ft / 1.60 m
	Ends:	Unarmoured
	Upper:	5.91" / 150 mm	359.25 ft / 109.50 m	7.87 ft / 2.40 m
	  Main Belt covers 113 % of normal length
	  Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		0.98" / 25 mm	492.13 ft / 150.00 m	16.40 ft / 5.00 m
	Beam between torpedo bulkheads 45.93 ft / 14.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	7.87" / 200 mm	1.57" / 40 mm		7.09" / 180 mm
	2nd:	0.12" / 3 mm	0.12" / 3 mm		      -

   - Armoured deck - single deck:
	For and Aft decks: 1.57" / 40 mm
	Forecastle: 0.00" / 0 mm  Quarter deck: 1.57" / 40 mm

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

Machinery:
	Oil fired boilers, steam turbines,
	Geared drive, 2 shafts, 82,796 shp / 61,766 Kw = 32.00 kts
	Range 5,685nm at 15.00 kts
	Bunker at max displacement = 1,550 tons

Complement:
	531 - 691

Cost:
	£2.522 million / $10.088 million

Distribution of weights at normal displacement:
	Armament: 613 tons, 5.6 %
	   - Guns: 523 tons, 4.8 %
	   - Weapons: 90 tons, 0.8 %
	Armour: 2,374 tons, 21.9 %
	   - Belts: 1,221 tons, 11.2 %
	   - Torpedo bulkhead: 294 tons, 2.7 %
	   - Armament: 113 tons, 1.0 %
	   - Armour Deck: 684 tons, 6.3 %
	   - Conning Tower: 62 tons, 0.6 %
	Machinery: 2,809 tons, 25.9 %
	Hull, fittings & equipment: 3,608 tons, 33.2 %
	Fuel, ammunition & stores: 1,373 tons, 12.6 %
	Miscellaneous weights: 85 tons, 0.8 %
	   - On freeboard deck: 40 tons
	   - Above deck: 45 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  11,719 lbs / 5,316 Kg = 45.9 x 8.0 " / 203 mm shells or 1.3 torpedoes
	Stability (Unstable if below 1.00): 1.15
	Metacentric height 3.0 ft / 0.9 m
	Roll period: 14.4 seconds
	Steadiness	- As gun platform (Average = 50 %): 60 %
			- Recoil effect (Restricted arc if above 1.00): 0.52
	Seaboat quality  (Average = 1.00): 1.20

Hull form characteristics:
	Hull has rise forward of midbreak,
	  a normal bow and a cruiser stern
	Block coefficient (normal/deep): 0.460 / 0.468
	Length to Beam Ratio: 11.11 : 1
	'Natural speed' for length: 25.62 kts
	Power going to wave formation at top speed: 50 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 15.00 degrees
	Stern overhang: 2.20 ft / 0.67 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	16.50 %,  24.28 ft / 7.40 m,  24.28 ft / 7.40 m
	   - Forward deck:	6.50 %,  24.28 ft / 7.40 m,  24.28 ft / 7.40 m
	   - Aft deck:	67.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
	   - Quarter deck:	10.00 %,  16.40 ft / 5.00 m,  16.40 ft / 5.00 m
	   - Average freeboard:		18.22 ft / 5.55 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 131.7 %
		- Above water (accommodation/working, high = better): 139.3 %
	Waterplane Area: 24,924 Square feet or 2,315 Square metres
	Displacement factor (Displacement / loading): 109 %
	Structure weight / hull surface area: 104 lbs/sq ft or 506 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.99
		- Longitudinal: 1.09
		- Overall: 1.00
	Cramped machinery, storage, compartmentation space
	Excellent accommodation and workspace room
	Good seaboat, rides out heavy weather easily

IGNORE BELT COVERAGE WARNINGS:
Belt covers citadel adequately and I have the spreadsheets to prove it.

203mm/50 Mle. 1924 | 123.82kg | 850m/s | 4-5 rpm | 31.4km
120mm/45 Mle. 1891/22 | 20.5kg | 823m/s | 12-15rpm | 11.9km
55cm 23D torpedo | 310kg TNT | 6km@43kt | 20km@29kt
1x heavy crane
1x gunpowder catapult,2x seaplane (F.B.A.17)

Belt over machinery is 3.2m of 150mm and 0.8m tapering from 150mm to 70mm
Belt over magazines is 0.8m of 150mm and 0.8m tapering from 150mm to 70mm
Belt extends 1.3m below water.

Lower Deck: 15mm HTS+40mm HTS over magazines, 0 within machinery space
Middle Deck: 15mm, 15mm HTS+40mm HTS over machinery
Upper Deck: 20mm HTS over entire ship (bomb/strength/weather deck)
Boat Deck: 3mm HTS over deckhouse