1939 CDS Proposal (1939) [Pulau]

1939 CDS Design, Republic of Pulau Coastal Defense Ship laid down 1939

Displacement:
	9,286 t light; 10,000 t standard; 10,271 t normal; 10,488 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(367.45 ft / 360.89 ft) x 82.02 ft x (22.97 / 23.34 ft)
	(112.00 m / 110.00 m) x 25.00 m  x (7.00 / 7.11 m)

Armament:
      5 - 13.39" / 340 mm 45.0 cal guns - 1,267.66lbs / 575.00kg shells, 100 per gun
	  Breech loading guns in turret on barbette mounts, 1930 Model
	  1 x 2-gun mount on centreline, aft deck centre
	  1 x 3-gun mount on centreline, forward deck centre
      16 - 3.94" / 100 mm 45.0 cal guns - 33.07lbs / 15.00kg shells, 500 per gun
	  Dual purpose guns in deck and hoist mounts, 1924 Model
	  8 x Twin mounts on sides, evenly spread
      16 - 0.98" / 25.0 mm 75.0 cal guns - 0.54lbs / 0.24kg shells, 2,000 per gun
	  Anti-air guns in deck mounts, 1930 Model
	  8 x Twin mounts on sides, evenly spread
		8 raised mounts
      Weight of broadside 6,876 lbs / 3,119 kg

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	11.0" / 280 mm	245.41 ft / 74.80 m	10.86 ft / 3.31 m
	Ends:	3.94" / 100 mm	115.45 ft / 35.19 m	10.86 ft / 3.31 m
	  Main Belt covers 105 % of normal length
	  Main Belt inclined -15.00 degrees (positive = in)

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		1.97" / 50 mm	245.41 ft / 74.80 m	20.77 ft / 6.33 m
	Beam between torpedo bulkheads 55.77 ft / 17.00 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	15.0" / 380 mm	5.91" / 150 mm		9.06" / 230 mm
	2nd:	1.97" / 50 mm	1.97" / 50 mm		1.97" / 50 mm

   - Armoured deck - multiple decks:
	For and Aft decks: 2.95" / 75 mm
	Forecastle: 0.98" / 25 mm  Quarter deck: 3.94" / 100 mm

   - Conning towers: Forward 3.94" / 100 mm, Aft 0.00" / 0 mm

Machinery:
	Diesel Internal combustion motors,
	Direct drive, 2 shafts, 17,940 shp / 13,383 Kw = 20.00 kts
	Range 5,000nm at 10.00 kts
	Bunker at max displacement = 488 tons

Complement:
	509 - 663

Cost:
	£5.854 million / $23.415 million

Distribution of weights at normal displacement:
	Armament: 1,396 tons, 13.6 %
	   - Guns: 1,396 tons, 13.6 %
	Armour: 3,901 tons, 38.0 %
	   - Belts: 1,523 tons, 14.8 %
	   - Torpedo bulkhead: 371 tons, 3.6 %
	   - Armament: 867 tons, 8.4 %
	   - Armour Deck: 1,100 tons, 10.7 %
	   - Conning Tower: 40 tons, 0.4 %
	Machinery: 485 tons, 4.7 %
	Hull, fittings & equipment: 3,303 tons, 32.2 %
	Fuel, ammunition & stores: 985 tons, 9.6 %
	Miscellaneous weights: 200 tons, 1.9 %
	   - On freeboard deck: 100 tons
	   - Above deck: 100 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  14,980 lbs / 6,795 Kg = 12.5 x 13.4 " / 340 mm shells or 3.5 torpedoes
	Stability (Unstable if below 1.00): 1.34
	Metacentric height 6.3 ft / 1.9 m
	Roll period: 13.8 seconds
	Steadiness	- As gun platform (Average = 50 %): 53 %
			- Recoil effect (Restricted arc if above 1.00): 0.39
	Seaboat quality  (Average = 1.00): 1.07

Hull form characteristics:
	Hull has a flush deck,
	  an extended bulbous bow and a round stern
	Block coefficient (normal/deep): 0.529 / 0.531
	Length to Beam Ratio: 4.40 : 1
	'Natural speed' for length: 19.00 kts
	Power going to wave formation at top speed: 57 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): 4.00 degrees
	Stern overhang: 0.00 ft / 0.00 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	17.00 %,  21.33 ft / 6.50 m,  17.22 ft / 5.25 m
	   - Forward deck:	30.00 %,  17.22 ft / 5.25 m,  13.12 ft / 4.00 m
	   - Aft deck:	38.00 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
	   - Quarter deck:	15.00 %,  13.12 ft / 4.00 m,  13.12 ft / 4.00 m
	   - Average freeboard:		14.71 ft / 4.49 m

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 104.2 %
		- Above water (accommodation/working, high = better): 103.9 %
	Waterplane Area: 20,253 Square feet or 1,882 Square metres
	Displacement factor (Displacement / loading): 94 %
	Structure weight / hull surface area: 160 lbs/sq ft or 783 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.88
		- Longitudinal: 2.98
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Adequate accommodation and workspace room

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Flagship Facilities (100 Tons)
2 Aircraft (50 Tons)
2 Heavy Cranes (50 Tons)