1935 ORP Niezwyciężony

ORP Niezwyciężony, Poland Armoured Cruiser laid down 1935

Displacement:
	9,514 t light; 9,999 t standard; 11,050 t normal; 11,891 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
	(560.00 ft / 550.00 ft) x 56.00 ft (Bulges 60.00 ft) x (22.98 / 24.35 ft)
	(170.69 m / 167.64 m) x 17.07 m (Bulges 18.29 m)  x (7.00 / 7.42 m)

Armament:
      8 - 8.00" / 203 mm 50.0 cal guns - 256.00lbs / 116.12kg shells, 150 per gun
	  Breech loading guns in deck and hoist mounts, 1923 Model
	  2 x Twin mounts on centreline, aft evenly spread
	  2 x Twin mounts on centreline, forward evenly spread
      10 - 4.00" / 102 mm 45.0 cal guns - 38.25lbs / 17.35kg shells, 250 per gun
	  Dual purpose guns in deck and hoist mounts, 1934 Model
	  4 x Twin mounts on sides, aft evenly spread
	  1 x Twin mount on centreline, aft deck centre
		1 raised mount
      24 - 1.57" / 40.0 mm 39.0 cal guns - 2.01lbs / 0.91kg shells, 1,500 per gun
	  Anti-air guns in deck mounts, 1923 Model
	  2 x 2 row octuple mounts on centreline, aft deck aft
		2 raised mounts
	  1 x 2 row octuple mount on centreline, aft deck forward
		1 double raised mount
      Weight of broadside 2,479 lbs / 1,124 kg

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	8.00" / 203 mm	350.00 ft / 106.68 m	12.00 ft / 3.66 m
	Ends:	4.00" / 102 mm	200.00 ft / 60.96 m	6.00 ft / 1.83 m
	  Main Belt covers 98 % of normal length
	  Main Belt inclined -23.55 degrees (positive = in)

   - Torpedo Bulkhead - Strengthened structural bulkheads:
		3.00" / 76 mm	550.00 ft / 167.64 m	30.00 ft / 9.14 m
	Beam between torpedo bulkheads 52.00 ft / 15.85 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	12.0" / 305 mm	6.00" / 152 mm		10.0" / 254 mm
	2nd:	4.00" / 102 mm	1.50" / 38 mm		4.00" / 102 mm

   - Armoured deck - single deck:
	For and Aft decks: 2.00" / 51 mm
	Forecastle: 1.00" / 25 mm  Quarter deck: 2.00" / 51 mm

   - Conning towers: Forward 12.00" / 305 mm, Aft 0.00" / 0 mm

Machinery:
	Oil fired boilers, steam turbines,
	Electric motors, 4 shafts, 80,736 shp / 60,229 Kw = 32.00 kts
	Range 5,000nm at 18.00 kts
	Bunker at max displacement = 1,892 tons

Complement:
	538 - 700

Cost:
	£4.652 million / $18.606 million

Distribution of weights at normal displacement:
	Armament: 591 tons, 5.3 %
	   - Guns: 591 tons, 5.3 %
	Armour: 4,543 tons, 41.1 %
	   - Belts: 1,568 tons, 14.2 %
	   - Torpedo bulkhead: 1,832 tons, 16.6 %
	   - Armament: 356 tons, 3.2 %
	   - Armour Deck: 660 tons, 6.0 %
	   - Conning Tower: 128 tons, 1.2 %
	Machinery: 2,294 tons, 20.8 %
	Hull, fittings & equipment: 1,942 tons, 17.6 %
	Fuel, ammunition & stores: 1,536 tons, 13.9 %
	Miscellaneous weights: 145 tons, 1.3 %
	   - On freeboard deck: 20 tons
	   - Above deck: 125 tons

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  14,733 lbs / 6,683 Kg = 57.5 x 8.0 " / 203 mm shells or 2.5 torpedoes
	Stability (Unstable if below 1.00): 1.25
	Metacentric height 3.1 ft / 1.0 m
	Roll period: 14.2 seconds
	Steadiness	- As gun platform (Average = 50 %): 49 %
			- Recoil effect (Restricted arc if above 1.00): 0.54
	Seaboat quality  (Average = 1.00): 1.04

Hull form characteristics:
	Hull has raised forecastle, rise aft of midbreak,
	  a normal bow and large transom stern
	Block coefficient (normal/deep): 0.510 / 0.518
	Length to Beam Ratio: 9.17 : 1
	'Natural speed' for length: 26.92 kts
	Power going to wave formation at top speed: 60 %
	Trim (Max stability = 0, Max steadiness = 100): 47
	Bow angle (Positive = bow angles forward): 27.75 degrees
	Stern overhang: -3.00 ft / -0.91 m
	Freeboard (% = length of deck as a percentage of waterline length):
				Fore end,	 Aft end
	   - Forecastle:	50.00 %,  19.00 ft / 5.79 m,  19.00 ft / 5.79 m
	   - Forward deck:	15.00 %,  16.00 ft / 4.88 m,  16.00 ft / 4.88 m
	   - Aft deck:	30.00 %,  24.00 ft / 7.32 m,  22.00 ft / 6.71 m
	   - Quarter deck:	5.00 %,  22.00 ft / 6.71 m,  22.00 ft / 6.71 m
	   - Average freeboard:		19.90 ft / 6.07 m
	Ship tends to be wet forward

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 96.9 %
		- Above water (accommodation/working, high = better): 157.6 %
	Waterplane Area: 21,541 Square feet or 2,001 Square metres
	Displacement factor (Displacement / loading): 94 %
	Structure weight / hull surface area: 109 lbs/sq ft or 533 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.94
		- Longitudinal: 1.76
		- Overall: 1.00
	Adequate machinery, storage, compartmentation space
	Excellent accommodation and workspace room

Belt is 11' absolute, 3' below water, 8' above water. Above water are two decks forward, three decks aft.

1 crane and 1 seaplane carried; no catapult necessary - foredeck is long enough for a rolling takeoff.

8"/50 Mark VIII
4"/45 QF Mark XVI*
Vickers 2-pdr Mark VIII