WesWorld

Hows this for a cruiser? Her armament is in 2 turrets and 4 casemates similar to Omaha. Any comments as to how I can improve the design?

Briliant, Atlantis cruiser laid down 1921

Displacement:
7,746 t light; 8,002 t standard; 8,816 t normal; 9,432 t full load
Loading submergence 610 tons/feet

Dimensions:
575.00 ft x 58.00 ft x 18.00 ft (normal load)
175.26 m x 17.68 m x 5.49 m

Armament:
4 - 6.00" / 152 mm guns (2 Main turrets x 2 guns)
4 - 6.00" / 152 mm guns in casemates
6 - 3.00" / 76 mm AA guns
8 - 1.00" / 25 mm guns
Weight of broadside 949 lbs / 430 kg
6 - 21.0" / 533.4 mm above water torpedoes

Armour:
Belt 3.50" / 89 mm, end belts 1.00" / 25 mm
Belts cover 130 % of normal area
Main turrets 3.00" / 76 mm, 2nd gun shields 1.00" / 25 mm
Armour deck 1.50" / 38 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 91,143 shp / 67,992 Kw = 33.05 kts
Range 10,000nm at 12.00 kts

Complement:
454 - 591

Cost:
£2.062 million / $8.249 million

Distribution of weights at normal displacement:
Armament: 119 tons, 1.3 %
Armour: 1,443 tons, 16.4 %
Belts: 726 tons, 8.2 %, Armament: 125 tons, 1.4 %, Armour Deck: 593 tons, 6.7 %
Conning Tower: 0 tons, 0.0 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 3,139 tons, 35.6 %
Hull, fittings & equipment: 2,996 tons, 34.0 %
Fuel, ammunition & stores: 1,069 tons, 12.1 %
Miscellaneous weights: 50 tons, 0.6 %

Metacentric height 3.3

Remarks:
Caution: Hull subject to strain in open-sea
Hull space for machinery, storage & compartmentation is cramped
Room for accommodation & workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.24
Shellfire needed to sink: 6,570 lbs / 2,980 Kg = 60.8 x 6.0 " / 152 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.1
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 70 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.28
Relative quality as seaboat: 1.08

Hull form characteristics:
Block coefficient: 0.514
Sharpness coefficient: 0.34
Hull speed coefficient 'M': 8.51
'Natural speed' for length: 23.98 kts
Power going to wave formation at top speed: 59 %
Trim: 65
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 126.5 %
Relative accommodation and working space: 157.0 %
(Average = 100%)
Displacement factor: 101 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.87
(Structure weight / hull surface area: 85 lbs / square foot or 414 Kg / square metre)
Relative longitudinal hull strength: 1.15
(for 20.00 ft / 6.10 m average freeboard, freeboard adjustment 5.23 ft)
Relative composite hull strength: 0.90