CRNS Claudia 1936 Destroyer

CRNS Claudia, Calder Destroyer laid down 1936

Displacement:
	1,790 t light; 1,904 t standard; 2,261 t normal; 2,545 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(389.27 ft / 379.59 ft) x 37.07 ft x (11.81 / 12.86 ft)
	(118.65 m / 115.70 m) x 11.30 m  x (3.60 / 3.92 m)

Armament:
      6 - 5.12" / 130 mm 40.0 cal guns - 60.08lbs / 27.25kg shells, 300 per gun
	  Dual purpose guns in deck and hoist mounts, 1932 Model
	  2 x Twin mounts on centreline, forward deck forward
		1 raised mount - superfiring
	  1 x Twin mount on centreline, aft deck aft
      6 - 1.18" / 30.0 mm 65.0 cal guns - 1.10lbs / 0.50kg shells, 2,000 per gun
	  Anti-air guns in deck mounts, 1928 Model
	  1 x Twin mount on centreline, aft deck aft
		1 raised mount
	  2 x Twin mounts on sides, forward deck aft
		2 double raised mounts
      6 - 0.52" / 13.2 mm 90.0 cal guns - 0.11lbs / 0.05kg shells, 4,000 per gun
	  Machine guns in deck mounts, 1928 Model
	  4 x Single mounts on sides, aft evenly spread
		4 raised mounts
	  2 x Single mounts on sides, forward deck centre
		2 double raised mounts
      Weight of broadside 368 lbs / 167 kg
      Main Torpedoes
      8 - 21.0" / 533 mm, 21.59 ft / 6.58 m torpedoes - 1.459 t each, 11.671 t total
	In 2 sets of deck mounted centre rotating tubes
      Main DC/AS Mortars
      2 - 749.57 lbs / 340.00 kg Depth Charges + 16 reloads - 6.023 t total
	in Stern depth charge racks

Armour:
   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	0.79" / 20 mm	0.79" / 20 mm		0.79" / 20 mm
	2nd:	0.51" / 13 mm	      -			      -

Machinery:
	Oil fired boilers, steam turbines,
	Geared drive, 2 shafts, 24,051 shp / 17,942 Kw = 29.40 kts
	Range 7,500nm at 14.00 kts
	Bunker at max displacement = 641 tons

Complement:
	163 - 213

Cost:
	£1.005 million / $4.020 million

Distribution of weights at normal displacement:
	Armament: 112 tons, 5.0%
	   - Guns: 81 tons, 3.6%
	   - Weapons: 31 tons, 1.4%
	Armour: 19 tons, 0.8%
	   - Armament: 19 tons, 0.8%
	Machinery: 675 tons, 29.9%
	Hull, fittings & equipment: 985 tons, 43.6%
	Fuel, ammunition & stores: 470 tons, 20.8%
	Miscellaneous weights: 0 tons, 0.0%

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  2,586 lbs / 1,173 Kg = 38.6 x 5.1 " / 130 mm shells or 0.6 torpedoes
	Stability (Unstable if below 1.00): 1.21
	Metacentric height 1.6 ft / 0.5 m
	Roll period: 12.3 seconds
	Steadiness	- As gun platform (Average = 50 %): 52 %
			- Recoil effect (Restricted arc if above 1.00): 0.46
	Seaboat quality  (Average = 1.00): 1.04

Hull form characteristics:
	Hull has a flush deck,
	  a normal bow and transom stern (0.64 of beam)
	Block coefficient (normal/deep): 0.476 / 0.492
	Length to Beam Ratio: 10.24 : 1
	'Natural speed' for length: 22.56 kts
	Power going to wave formation at top speed: 61 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 19.70 degrees
	Stern overhang: 2.62 ft / 0.80 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	17.50%,  19.69 ft / 6.00 m,  16.40 ft / 5.00 m
	   - Forward deck:	36.00%,  16.40 ft / 5.00 m,  12.47 ft / 3.80 m
	   - Aft deck:	29.00%,  12.47 ft / 3.80 m,  12.47 ft / 3.80 m
	   - Quarter deck:	17.50%,  12.47 ft / 3.80 m,  13.45 ft / 4.10 m
	   - Average freeboard:		14.18 ft / 4.32 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 112.6%
		- Above water (accommodation/working, high = better): 124.0%
	Waterplane Area: 9,547 Square feet or 887 Square metres
	Displacement factor (Displacement / loading): 134%
	Structure weight / hull surface area: 63 lbs/sq ft or 310 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.93
		- Longitudinal: 2.00
		- Overall: 1.00
	Cramped machinery, storage, compartmentation space
	Excellent accommodation and workspace room

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Speed Calc:
Forward Speed Calc: Input 35 knots Output: 29.4 knots


True Machinery 35 knots

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