My latest attempt at the GB/BB/1906 design

I just tried my friend Cliff's design for a fast battleship with light armament, the GB/BB/1906. It really went together easily, once I went for a SHP/ton of 29 SHP/ton of machinery. The ship has 6-12in BLR and 8-6in QF guns, all in twin turrets. The ship has a long forecastle with twin funnels. The armor is thick, with a belt and turret faces of 13.4 inches. The revised speed that I had hoped for in 1973 is easily attained, as I did not want a very great range.

GB/BB/1906, Great Britain Battleship laid down 1906 (Engine 1921)

Displacement:
	25,211 t light; 26,113 t standard; 27,862 t normal; 29,261 t full load

Dimensions: Length overall / water x beam x draught
	680.00 ft / 680.00 ft x 87.70 ft x 28.00 ft (normal load)
	207.26 m / 207.26 m x 26.73 m  x 8.53 m

Armament:
      6 - 12.00" / 305 mm guns (3x2 guns), 864.00lbs / 391.90kg shells, 1906 Model
	  Breech loading guns in turrets (on barbettes)
	  on centreline ends, majority forward, all raised mounts - superfiring
      8 - 6.00" / 152 mm guns (4x2 guns), 108.00lbs / 48.99kg shells, 1906 Model
	  Quick firing guns in turrets (on barbettes)
	  on side, all amidships, all raised mounts - superfiring
	Weight of broadside 6,048 lbs / 2,743 kg
	Shells per gun, main battery: 100

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	13.4" / 340 mm	380.00 ft / 115.82 m	17.00 ft / 5.18 m
	Ends:	Unarmoured
	  Main Belt covers 86 % of normal length

   - Torpedo Bulkhead:
		1.50" / 38 mm	380.00 ft / 115.82 m	25.00 ft / 7.62 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	13.4" / 340 mm	8.00" / 203 mm		13.4" / 340 mm
	2nd:	3.38" / 86 mm	3.00" / 76 mm		3.38" / 86 mm

   - Armour deck: 4.50" / 114 mm, Conning tower: 6.75" / 171 mm

Machinery:
	Oil fired boilers, steam turbines, 
	Direct drive, 4 shafts, 108,782 shp / 81,152 Kw = 29.00 kts
	Range 6,500nm at 15.00 kts
	Bunker at max displacement = 3,149 tons

Complement:
	1,077 - 1,401

Cost:
	£2.042 million / $8.167 million

Distribution of weights at normal displacement:
	Armament: 756 tons, 2.7 %
	Armour: 10,602 tons, 38.1 %
	   - Belts: 3,820 tons, 13.7 %
	   - Torpedo bulkhead: 527 tons, 1.9 %
	   - Armament: 2,544 tons, 9.1 %
	   - Armour Deck: 3,577 tons, 12.8 %
	   - Conning Tower: 134 tons, 0.5 %
	Machinery: 3,746 tons, 13.4 %
	Hull, fittings & equipment: 10,108 tons, 36.3 %
	Fuel, ammunition & stores: 2,650 tons, 9.5 %
	Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  40,400 lbs / 18,325 Kg = 46.8 x 12.0 " / 305 mm shells or 6.3 torpedoes
	Stability (Unstable if below 1.00): 1.01
	Metacentric height 4.2 ft / 1.3 m
	Roll period: 18.1 seconds
	Steadiness	- As gun platform (Average = 50 %): 63 %
			- Recoil effect (Restricted arc if above 1.00): 0.53
	Seaboat quality  (Average = 1.00): 1.25

Hull form characteristics:
	Hull has rise forward of midbreak
	Block coefficient: 0.584
	Length to Beam Ratio: 7.75 : 1
	'Natural speed' for length: 26.08 kts
	Power going to wave formation at top speed: 54 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): -1.00 degrees
	Stern overhang: -2.00 ft / -0.61 m
	Freeboard (% = measuring location as a percentage of overall length):
	   - Stem:		31.00 ft / 9.45 m
	   - Forecastle (63 %):	28.00 ft / 8.53 m
	   - Mid (63 %):		28.00 ft / 8.53 m (20.00 ft / 6.10 m aft of break)
	   - Quarterdeck (15 %):	20.00 ft / 6.10 m
	   - Stern:		20.00 ft / 6.10 m
	   - Average freeboard:	25.80 ft / 7.86 m

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 84.0 %
		- Above water (accommodation/working, high = better): 152.0 %
	Waterplane Area: 42,968 Square feet or 3,992 Square metres
	Displacement factor (Displacement / loading): 115 %
	Structure weight / hull surface area: 156 lbs/sq ft or 761 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.95
		- Longitudinal: 1.46
		- Overall: 1.00
	Hull space for machinery, storage, compartmentation is adequate
	Room for accommodation and workspaces is excellent
	Good seaboat, rides out heavy weather easily