Here's a possible design for the 8000 ton entry. She can be built in any Class 3 slip or drydock. I went with the 5.5" gun, as much because it's different as anything else. She's not quite the sea-boat some of the British designs are, but her armor is better.
Okanagan, Canadian Light Cruiser laid down 1931
Displacement:
7,902 t light; 8,237 t standard; 9,180 t normal; 9,934 t full load
Dimensions: Length overall / water x beam x draught
631.93 ft / 625.00 ft x 63.00 ft x 17.00 ft (normal load)
192.61 m / 190.50 m x 19.20 m x 5.18 m
Armament:
12 - 5.50" / 140 mm guns (4x3 guns), 83.19lbs / 37.73kg shells, 1931 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
8 - 4.00" / 102 mm guns (4x2 guns), 32.00lbs / 14.51kg shells, 1931 Model
Dual purpose guns in deck mounts with hoists
on side ends, evenly spread
16 - 1.57" / 40.0 mm guns (4x4 guns), 1.95lbs / 0.89kg shells, 1931 Model
Dual purpose guns in deck mounts
on side, evenly spread, 2 raised mounts
Weight of broadside 1,285 lbs / 583 kg
Shells per gun, main battery: 200
8 - 21.0" / 533 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.00" / 76 mm 381.25 ft / 116.21 m 9.52 ft / 2.90 m
Ends: Unarmoured
Main Belt covers 94 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4.00" / 102 mm 2.00" / 51 mm 3.50" / 89 mm
2nd: 1.50" / 38 mm 1.00" / 25 mm 1.50" / 38 mm
3rd: 0.50" / 13 mm 0.50" / 13 mm -
- Armour deck: 1.50" / 38 mm, Conning tower: 3.50" / 89 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 68,190 shp / 50,870 Kw = 32.00 kts
Range 8,000nm at 15.00 kts
Bunker at max displacement = 1,697 tons
Complement:
468 - 609
Cost:
£3.042 million / $12.166 million
Distribution of weights at normal displacement:
Armament: 161 tons, 1.8 %
Armour: 1,567 tons, 17.1 %
- Belts: 458 tons, 5.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 333 tons, 3.6 %
- Armour Deck: 743 tons, 8.1 %
- Conning Tower: 33 tons, 0.4 %
Machinery: 2,039 tons, 22.2 %
Hull, fittings & equipment: 4,055 tons, 44.2 %
Fuel, ammunition & stores: 1,278 tons, 13.9 %
Miscellaneous weights: 80 tons, 0.9 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
14,827 lbs / 6,725 Kg = 178.2 x 5.5 " / 140 mm shells or 1.9 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 3.2 ft / 1.0 m
Roll period: 14.7 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.35
Seaboat quality (Average = 1.00): 1.21
Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.480
Length to Beam Ratio: 9.92 : 1
'Natural speed' for length: 28.62 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 58
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 1.64 ft / 0.50 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 30.00 ft / 9.14 m
- Forecastle (22 %): 23.00 ft / 7.01 m
- Mid (40 %): 23.00 ft / 7.01 m (18.50 ft / 5.64 m aft of break)
- Quarterdeck (17 %): 18.50 ft / 5.64 m
- Stern: 18.50 ft / 5.64 m
- Average freeboard: 20.92 ft / 6.38 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 87.6 %
- Above water (accommodation/working, high = better): 185.9 %
Waterplane Area: 26,784 Square feet or 2,488 Square metres
Displacement factor (Displacement / loading): 131 %
Structure weight / hull surface area: 101 lbs/sq ft or 493 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.97
- Longitudinal: 1.24
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
80 tons reserved for aircraft facilities.