A 2nd Class Cruiser for 1927

This was my first attempt at sort of a 2nd Class Cruiser to go with my 1st Class Cruiser with 9.2in guns. The 2nd Class Cruiser has 9-7.5in and 12-4in DP guns with 8-21in TT. The idea is to be practically a protected cruiser, and the design has a 3in deck. I have a narrow belt, as well, to augment the deck. The speed is modest with a range intended for the Pacific theater: 12,000 nm. Hopefully, I haven't made any data entry errors, and the design is good as specified. I had to do minor tweaking as I had omitted turret and barbette armor, which Springsharp rightfully complained about. The ship is flush-decked, as I prefer.

GB/CL/1927, Great Britain 2nd Class Cruiser laid down 1927

Displacement:
	11,695 t light; 12,181 t standard; 14,021 t normal; 15,493 t full load

Dimensions: Length overall / water x beam x draught
	615.98 ft / 615.00 ft x 65.00 ft x 22.00 ft (normal load)
	187.75 m / 187.45 m x 19.81 m  x 6.71 m

Armament:
      9 - 7.50" / 191 mm guns (3x3 guns), 210.94lbs / 95.68kg shells, 1927 Model
	  Breech loading guns in turrets (on barbettes)
	  on centreline ends, majority forward, all raised mounts - superfiring
      12 - 4.00" / 102 mm guns (6x2 guns), 32.00lbs / 14.51kg shells, 1927 Model
	  Dual purpose guns in deck mounts with hoists
	  on side ends, evenly spread, all raised mounts - superfiring
      28 - 1.57" / 40.0 mm guns (7x4 guns), 1.95lbs / 0.89kg shells, 1927 Model
	  Anti-aircraft guns in deck mounts 
	  on side ends, majority forward, all raised mounts - superfiring
	Weight of broadside 2,337 lbs / 1,060 kg
	Shells per gun, main battery: 150
	8 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Belts:		Width (max)	Length (avg)		Height (avg)
	Main:	4.00" / 102 mm	435.00 ft / 132.59 m	10.00 ft / 3.05 m
	Ends:	Unarmoured
	  Main Belt covers 109 % of normal length
	  Main belt does not fully cover magazines and engineering spaces

   - Torpedo Bulkhead:
		1.00" / 25 mm	435.00 ft / 132.59 m	18.00 ft / 5.49 m

   - Gun armour:	Face (max)	Other gunhouse (avg)	Barbette/hoist (max)
	Main:	4.00" / 102 mm	3.00" / 76 mm		4.00" / 102 mm

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

Machinery:
	Oil fired boilers, steam turbines, 
	Geared drive, 4 shafts, 92,007 shp / 68,637 Kw = 32.00 kts
	Range 12,000nm at 15.00 kts
	Bunker at max displacement = 3,312 tons

Complement:
	643 - 837

Cost:
	£3.859 million / $15.437 million

Distribution of weights at normal displacement:
	Armament: 292 tons, 2.1 %
	Armour: 3,137 tons, 22.4 %
	   - Belts: 720 tons, 5.1 %
	   - Torpedo bulkhead: 290 tons, 2.1 %
	   - Armament: 440 tons, 3.1 %
	   - Armour Deck: 1,624 tons, 11.6 %
	   - Conning Tower: 63 tons, 0.4 %
	Machinery: 2,904 tons, 20.7 %
	Hull, fittings & equipment: 5,362 tons, 38.2 %
	Fuel, ammunition & stores: 2,326 tons, 16.6 %
	Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  20,676 lbs / 9,379 Kg = 98.0 x 7.5 " / 191 mm shells or 2.8 torpedoes
	Stability (Unstable if below 1.00): 1.16
	Metacentric height 3.4 ft / 1.0 m
	Roll period: 14.7 seconds
	Steadiness	- As gun platform (Average = 50 %): 55 %
			- Recoil effect (Restricted arc if above 1.00): 0.57
	Seaboat quality  (Average = 1.00): 1.10

Hull form characteristics:
	Hull has a flush deck
	  and transom stern
	Block coefficient: 0.558
	Length to Beam Ratio: 9.46 : 1
	'Natural speed' for length: 28.24 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: 0.00 ft / 0.00 m
	Freeboard (% = measuring location as a percentage of overall length):
	   - Stem:		28.00 ft / 8.53 m
	   - Forecastle (20 %):	22.00 ft / 6.71 m
	   - Mid (50 %):		22.00 ft / 6.71 m
	   - Quarterdeck (15 %):	22.00 ft / 6.71 m
	   - Stern:		22.00 ft / 6.71 m
	   - Average freeboard:	22.48 ft / 6.85 m

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 121.3 %
		- Above water (accommodation/working, high = better): 164.4 %
	Waterplane Area: 29,268 Square feet or 2,719 Square metres
	Displacement factor (Displacement / loading): 124 %
	Structure weight / hull surface area: 116 lbs/sq ft or 568 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.95
		- Longitudinal: 1.47
		- Overall: 1.00
	Hull space for machinery, storage, compartmentation is cramped
	Room for accommodation and workspaces is excellent