My friend Cliff would have been thrilled with how the GB/CB/1910 worked out

I just experimented with my friend Cliff's design for a super-fast battlecruiser with 4-13.5in BLR and 8-4in QF guns. "Super-fast" is relative, but 36 knots is faster than anything anyone but us thought of achieving. The American CC's for 1921 were originally to be 35 knot ships, and I've not seen anything else that was close. The GB/CB/1910 was different from her predecessors in having better protection (a 9in belt). I have her a 3in deck, as well.

GB/CB/1910, Great Britain Battlecruiser laid down 1910 (Engine 1927)

Displacement:
	29,739 t light; 30,662 t standard; 33,008 t normal; 34,885 t full load

Dimensions: Length overall / water x beam x draught
	775.00 ft / 775.00 ft x 92.00 ft x 33.00 ft (normal load)
	236.22 m / 236.22 m x 28.04 m  x 10.06 m

Armament:
      4 - 13.50" / 343 mm guns (2x2 guns), 1,230.19lbs / 558.00kg shells, 1910 Model
	  Breech loading guns in turrets (on barbettes)
	  on centreline ends, evenly spread, all raised mounts
      8 - 4.00" / 102 mm guns (4x2 guns), 32.00lbs / 14.51kg shells, 1910 Model
	  Quick firing guns in deck mounts with hoists
	  on side, evenly spread, all raised mounts
	Weight of broadside 5,177 lbs / 2,348 kg
	Shells per gun, main battery: 90

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	9.00" / 229 mm	580.00 ft / 176.78 m	18.00 ft / 5.49 m
	Ends:	Unarmoured
	  Main Belt covers 115 % of normal length
	  Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
		2.00" / 51 mm	580.00 ft / 176.78 m	27.00 ft / 8.23 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	9.00" / 229 mm	6.00" / 152 mm		8.00" / 203 mm
	2nd:	1.00" / 25 mm	      -			      -

   - Armour deck: 3.00" / 76 mm

Machinery:
	Oil fired boilers, steam turbines, 
	Direct drive, 4 shafts, 259,440 shp / 193,542 Kw = 36.00 kts
	Range 8,500nm at 15.00 kts
	Bunker at max displacement = 4,223 tons

Complement:
	1,223 - 1,591

Cost:
	£2.731 million / $10.924 million

Distribution of weights at normal displacement:
	Armament: 647 tons, 2.0 %
	Armour: 8,742 tons, 26.5 %
	   - Belts: 3,872 tons, 11.7 %
	   - Torpedo bulkhead: 1,159 tons, 3.5 %
	   - Armament: 1,096 tons, 3.3 %
	   - Armour Deck: 2,615 tons, 7.9 %
	   - Conning Tower: 0 tons, 0.0 %
	Machinery: 8,189 tons, 24.8 %
	Hull, fittings & equipment: 12,161 tons, 36.8 %
	Fuel, ammunition & stores: 3,268 tons, 9.9 %
	Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  35,518 lbs / 16,111 Kg = 28.9 x 13.5 " / 343 mm shells or 4.5 torpedoes
	Stability (Unstable if below 1.00): 1.17
	Metacentric height 5.9 ft / 1.8 m
	Roll period: 15.9 seconds
	Steadiness	- As gun platform (Average = 50 %): 55 %
			- Recoil effect (Restricted arc if above 1.00): 0.33
	Seaboat quality  (Average = 1.00): 1.10

Hull form characteristics:
	Hull has rise forward of midbreak
	Block coefficient: 0.491
	Length to Beam Ratio: 8.42 : 1
	'Natural speed' for length: 27.84 kts
	Power going to wave formation at top speed: 58 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): -2.00 degrees
	Stern overhang: -1.00 ft / -0.30 m
	Freeboard (% = measuring location as a percentage of overall length):
	   - Stem:		34.00 ft / 10.36 m
	   - Forecastle (68 %):	30.00 ft / 9.14 m
	   - Mid (68 %):		30.00 ft / 9.14 m (22.00 ft / 6.71 m aft of break)
	   - Quarterdeck (15 %):	22.00 ft / 6.71 m
	   - Stern:		22.00 ft / 6.71 m
	   - Average freeboard:	28.53 ft / 8.70 m

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 122.0 %
		- Above water (accommodation/working, high = better): 161.5 %
	Waterplane Area: 47,120 Square feet or 4,378 Square metres
	Displacement factor (Displacement / loading): 109 %
	Structure weight / hull surface area: 160 lbs/sq ft or 783 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.97
		- Longitudinal: 1.64
		- Overall: 1.02
	Hull space for machinery, storage, compartmentation is cramped
	Room for accommodation and workspaces is excellent