CRNS Caludia - 1936 Destroyer (Flush Deck)

CRNS Claudia, Calder Destroyer laid down 1936 (Engine 1937)

Displacement:
	1,851 t light; 1,955 t standard; 2,241 t normal; 2,470 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(389.12 ft / 379.92 ft) x 37.07 ft x (11.48 / 12.33 ft)
	(118.61 m / 115.80 m) x 11.30 m  x (3.50 / 3.76 m)

Armament:
      6 - 5.12" / 130 mm 38.0 cal guns - 58.00lbs / 26.31kg shells, 250 per gun
	  Quick firing guns in deck and hoist mounts, 1932 Model
	  3 x Twin mounts on centreline ends, majority forward
		1 raised mount - superfiring
      6 - 1.46" / 37.0 mm 69.0 cal guns - 1.72lbs / 0.78kg shells, 2,000 per gun
	  Anti-air guns in deck mounts, 1928 Model
	  4 x Single mounts on sides, aft deck forward
	  2 x Single mounts on sides, forward deck centre
      Weight of broadside 358 lbs / 163 kg
      Main Torpedoes
      4 - 21.0" / 533 mm, 21.59 ft / 6.58 m torpedoes - 1.459 t each, 5.836 t total
	In 1 sets of deck mounted centre rotating tubes
      Main DC/AS Mortars
      2 - 421.08 lbs / 191.00 kg Depth Charges + 10 reloads - 2.256 t total
	in Stern depth charge racks
      2nd DC/AS Mortars
      2 - 421.08 lbs / 191.00 kg ahead throwing AS Mortars + 10 reloads - 2.256 t total

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

Machinery:
	Oil fired boilers, steam turbines,
	Geared drive, 2 shafts, 26,161 shp / 19,516 Kw = 29.40 kts
	Range 5,500nm at 15.00 kts
	Bunker at max displacement = 514 tons

Complement:
	162 - 211

Cost:
	£1.044 million / $4.176 million

Distribution of weights at normal displacement:
	Armament: 92 tons, 4.1 %
	   - Guns: 74 tons, 3.3 %
	   - Weapons: 18 tons, 0.8 %
	Armour: 17 tons, 0.7 %
	   - Armament: 17 tons, 0.7 %
	Machinery: 725 tons, 32.4 %
	Hull, fittings & equipment: 902 tons, 40.3 %
	Fuel, ammunition & stores: 390 tons, 17.4 %
	Miscellaneous weights: 115 tons, 5.1 %
	   - On freeboard deck: 115 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  2,091 lbs / 949 Kg = 31.2 x 5.1 " / 130 mm shells or 0.6 torpedoes
	Stability (Unstable if below 1.00): 1.24
	Metacentric height 1.7 ft / 0.5 m
	Roll period: 12.1 seconds
	Steadiness	- As gun platform (Average = 50 %): 39 %
			- Recoil effect (Restricted arc if above 1.00): 0.35
	Seaboat quality  (Average = 1.00): 0.61

Hull form characteristics:
	Hull has a flush deck,
	  a normal bow and small transom stern
	Block coefficient (normal/deep): 0.485 / 0.498
	Length to Beam Ratio: 10.25 : 1
	'Natural speed' for length: 20.91 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 %,  18.37 ft / 5.60 m,  14.44 ft / 4.40 m
	   - Forward deck:	40.00 %,  14.44 ft / 4.40 m,  10.50 ft / 3.20 m
	   - Aft deck:	25.00 %,  10.50 ft / 3.20 m,  10.50 ft / 3.20 m
	   - Quarter deck:	17.50 %,  10.50 ft / 3.20 m,  10.50 ft / 3.20 m
	   - Average freeboard:		12.25 ft / 3.73 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 119.7 %
		- Above water (accommodation/working, high = better): 118.7 %
	Waterplane Area: 9,478 Square feet or 881 Square metres
	Displacement factor (Displacement / loading): 119 %
	Structure weight / hull surface area: 64 lbs/sq ft or 311 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.97
		- Longitudinal: 1.29
		- Overall: 1.00
	Cramped machinery, storage, compartmentation space
	Adequate accommodation and workspace room
	Caution: Lacks seaworthiness - very limited seakeeping ability

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


True Machinery 35knots @ 31,900 SHP