The destroyer corresponding to my other 1927 British ships

I did a destroyer design to go with the other 1927 British designs: GB/DD/1927. The armament is 4-5.1in DP guns in twin turrets, 10-40mm AA in twin mountings, and 8-21in TT in quadruple mounts. To achieve adequate seakeeping ability, I had to go with a raised forecastle. I had wrestled with a flush deck, and couldn't get the right combination of characteristics.

GB/DD/1927, Great Britain Destroyer laid down 1927

Displacement:
	1,519 t light; 1,575 t standard; 1,663 t normal; 1,734 t full load

Dimensions: Length overall / water x beam x draught
	348.80 ft / 348.00 ft x 34.00 ft x 12.00 ft (normal load)
	106.32 m / 106.07 m x 10.36 m  x 3.66 m

Armament:
      4 - 5.10" / 130 mm guns (2x2 guns), 66.33lbs / 30.08kg shells, 1927 Model
	  Dual purpose guns in deck mounts with hoists
	  on centreline ends, evenly spread, all raised mounts
      10 - 1.57" / 40.0 mm guns (5x2 guns), 1.95lbs / 0.89kg shells, 1927 Model
	  Anti-aircraft guns in deck mounts 
	  on side ends, majority aft, all raised mounts - superfiring
	Weight of broadside 285 lbs / 129 kg
	Shells per gun, main battery: 135
	8 - 21.0" / 533.4 mm above water torpedoes

Machinery:
	Oil fired boilers, steam turbines, 
	Geared drive, 2 shafts, 40,939 shp / 30,540 Kw = 35.00 kts
	Range 3,200nm at 12.00 kts
	Bunker at max displacement = 159 tons

Complement:
	129 - 169

Cost:
	£0.759 million / $3.037 million

Distribution of weights at normal displacement:
	Armament: 36 tons, 2.1 %
	Machinery: 898 tons, 54.0 %
	Hull, fittings & equipment: 586 tons, 35.2 %
	Fuel, ammunition & stores: 144 tons, 8.7 %
	Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
	Survivability (Non-critical penetrating hits needed to sink ship):
	  442 lbs / 201 Kg = 6.7 x 5.1 " / 130 mm shells or 0.3 torpedoes
	Stability (Unstable if below 1.00): 1.28
	Metacentric height 1.5 ft / 0.5 m
	Roll period: 11.5 seconds
	Steadiness	- As gun platform (Average = 50 %): 52 %
			- Recoil effect (Restricted arc if above 1.00): 0.60
	Seaboat quality  (Average = 1.00): 1.01

Hull form characteristics:
	Hull has rise forward of midbreak
	  and transom stern
	Block coefficient: 0.410
	Length to Beam Ratio: 10.24 : 1
	'Natural speed' for length: 21.50 kts
	Power going to wave formation at top speed: 69 %
	Trim (Max stability = 0, Max steadiness = 100): 52
	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:		23.00 ft / 7.01 m
	   - Forecastle (20 %):	20.00 ft / 6.10 m
	   - Mid (50 %):		20.00 ft / 6.10 m (12.00 ft / 3.66 m aft of break)
	   - Quarterdeck (15 %):	12.00 ft / 3.66 m
	   - Stern:		12.00 ft / 3.66 m
	   - Average freeboard:	16.24 ft / 4.95 m

Ship space, strength and comments:
	Space	- Hull below water (magazines/engines, low = better): 190.5 %
		- Above water (accommodation/working, high = better): 94.1 %
	Waterplane Area: 7,606 Square feet or 707 Square metres
	Displacement factor (Displacement / loading): 58 %
	Structure weight / hull surface area: 37 lbs/sq ft or 179 Kg/sq metre
	Hull strength (Relative):
		- Cross-sectional: 0.47
		- Longitudinal: 2.74
		- Overall: 0.56
	Hull space for machinery, storage, compartmentation is cramped
	Room for accommodation and workspaces is adequate