Machinery power output per weight is critical: Ger/CB/1906

If you use a higher power per ton of machinery weight for my Ger/CB/1906, the design becomes very possible. I had hoped for 33 knots, and can achieve that. I kept the side armor thin (4in) as in my original spec. The ship is about what I had hoped for in 1971, using Springsharp to validate the design). Am I missing anything?

Ger/CB/1906, Germany Battlecruiser laid down 1906 (Engine 1923)

Displacement:
	25,921 t light; 26,874 t standard; 29,166 t normal; 31,000 t full load

Dimensions: Length overall / water x beam x draught
	800.00 ft / 800.00 ft x 85.00 ft x 27.00 ft (normal load)
	243.84 m / 243.84 m x 25.91 m  x 8.23 m

Armament:
      8 - 12.00" / 305 mm guns (4x2 guns), 864.00lbs / 391.90kg shells, 1906 Model
	  Breech loading guns in turrets (on barbettes)
	  on centreline ends, evenly spread, all raised mounts - superfiring
      12 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1906 Model
	  Quick firing guns in deck mounts with hoists
	  on side, all amidships, all raised mounts - superfiring
	Weight of broadside 7,296 lbs / 3,309 kg
	Shells per gun, main battery: 90

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	4.00" / 102 mm	650.00 ft / 198.12 m	17.00 ft / 5.18 m
	Ends:	Unarmoured
	  Main Belt covers 125 % of normal length

   - Torpedo Bulkhead:
		1.50" / 38 mm	650.00 ft / 198.12 m	24.00 ft / 7.32 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	9.00" / 229 mm	5.00" / 127 mm		9.00" / 229 mm
	2nd:	1.00" / 25 mm	      -			      -

   - Armour deck: 3.00" / 76 mm, Conning tower: 5.00" / 127 mm

Machinery:
	Oil fired boilers, steam turbines, 
	Direct drive, 4 shafts, 169,854 shp / 126,711 Kw = 33.00 kts
	Range 8,500nm at 15.00 kts
	Bunker at max displacement = 4,126 tons

Complement:
	1,115 - 1,450

Cost:
	£2.468 million / $9.872 million

Distribution of weights at normal displacement:
	Armament: 912 tons, 3.1 %
	Armour: 7,422 tons, 25.4 %
	   - Belts: 1,791 tons, 6.1 %
	   - Torpedo bulkhead: 866 tons, 3.0 %
	   - Armament: 2,015 tons, 6.9 %
	   - Armour Deck: 2,649 tons, 9.1 %
	   - Conning Tower: 102 tons, 0.3 %
	Machinery: 5,677 tons, 19.5 %
	Hull, fittings & equipment: 11,910 tons, 40.8 %
	Fuel, ammunition & stores: 3,245 tons, 11.1 %
	Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  34,748 lbs / 15,761 Kg = 40.2 x 12.0 " / 305 mm shells or 4.6 torpedoes
	Stability (Unstable if below 1.00): 1.04
	Metacentric height 4.2 ft / 1.3 m
	Roll period: 17.3 seconds
	Steadiness	- As gun platform (Average = 50 %): 62 %
			- Recoil effect (Restricted arc if above 1.00): 0.73
	Seaboat quality  (Average = 1.00): 1.24

Hull form characteristics:
	Hull has rise forward of midbreak
	Block coefficient: 0.556
	Length to Beam Ratio: 9.41 : 1
	'Natural speed' for length: 28.28 kts
	Power going to wave formation at top speed: 53 %
	Trim (Max stability = 0, Max steadiness = 100): 50
	Bow angle (Positive = bow angles forward): -2.00 degrees
	Stern overhang: -2.00 ft / -0.61 m
	Freeboard (% = measuring location as a percentage of overall length):
	   - Stem:		33.00 ft / 10.06 m
	   - Forecastle (67 %):	30.00 ft / 9.14 m
	   - Mid (67 %):		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:	28.16 ft / 8.58 m

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 113.6 %
		- Above water (accommodation/working, high = better): 179.4 %
	Waterplane Area: 47,724 Square feet or 4,434 Square metres
	Displacement factor (Displacement / loading): 112 %
	Structure weight / hull surface area: 159 lbs/sq ft or 778 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.98
		- Longitudinal: 1.21
		- Overall: 1.00
	Hull space for machinery, storage, compartmentation is cramped
	Room for accommodation and workspaces is excellent
	Good seaboat, rides out heavy weather easily