Throwing out something that slowly began to take shape in the deranged depths of my mind... maybe needs a few more 75mm guns...
(... though at one point I was thinking of only 75mm guns on the ship...)
Weird and Useless, Japan Cruiser laid down 1944
Displacement:
9,964 t light; 10,985 t standard; 12,751 t normal; 14,164 t full load
Dimensions: Length overall / water x beam x draught
670.32 ft / 650.00 ft x 65.00 ft x 21.00 ft (normal load)
204.31 m / 198.12 m x 19.81 m x 6.40 m
Armament:
6 - 6.00" / 152 mm guns (2x3 guns), 105.00lbs / 47.63kg shells, 1944 Model
Quick firing guns in turrets (on barbettes)
on centreline ends, evenly spread
16 - 2.95" / 75.0 mm guns (8x2 guns), 12.00lbs / 5.44kg shells, 1944 Model
Automatic rapid fire guns in deck mounts with hoists
on centreline ends, evenly spread, all raised mounts - superfiring
36 - 2.95" / 75.0 mm guns (18x2 guns), 12.00lbs / 5.44kg shells, 1944 Model
Automatic rapid fire guns in deck mounts with hoists
on side, evenly spread, 6 raised mounts
Weight of broadside 1,254 lbs / 569 kg
Shells per gun, main battery: 941 (*)
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.00" / 102 mm 390.00 ft / 118.87 m 9.67 ft / 2.95 m
Ends: Unarmoured
Main Belt covers 92% of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 4.00" / 102 mm 3.00" / 76 mm 3.00" / 76 mm
2nd: 1.00" / 25 mm - 1.00" / 25 mm
3rd: 1.00" / 25 mm - 1.00" / 25 mm
- Armour deck: 2.00" / 51 mm, Conning tower: 2.75" / 70 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 104,916 shp / 78,267 Kw = 34.00 kts
Range 9,500nm at 18.00 kts
Bunker at max displacement = 3,179 tons
Complement:
599 - 779
Cost:
£5.894 million / $23.578 million
Distribution of weights at normal displacement:
Armament: 181 tons, 1.4%
Armour: 1,973 tons, 15.5%
- Belts: 636 tons, 5.0%
- Torpedo bulkhead: 0 tons, 0.0%
- Armament: 219 tons, 1.7%
- Armour Deck: 1,086 tons, 8.5%
- Conning Tower: 32 tons, 0.3%
Machinery: 2,679 tons, 21.0%
Hull, fittings & equipment: 4,530 tons, 35.5%
Fuel, ammunition & stores: 2,787 tons, 21.9%
Miscellaneous weights: 600 tons, 4.7%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
16,838 lbs / 7,638 Kg = 155.9 x 6.0 " / 152 mm shells or 2.0 torpedoes
Stability (Unstable if below 1.00): 1.13
Metacentric height 3.3 ft / 1.0 m
Roll period: 15.0 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.26
Seaboat quality (Average = 1.00): 1.03
Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0.503
Length to Beam Ratio: 10.00 : 1
'Natural speed' for length: 29.08 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 68
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 3.00 ft / 0.91 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 30.00 ft / 9.14 m
- Forecastle (20%): 19.00 ft / 5.79 m
- Mid (50%): 19.00 ft / 5.79 m
- Quarterdeck (15%): 19.00 ft / 5.79 m
- Stern: 19.00 ft / 5.79 m
- Average freeboard: 19.88 ft / 6.06 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 90.3%
- Above water (accommodation/working, high = better): 177.4%
Waterplane Area: 29,356 Square feet or 2,727 Square metres
Displacement factor (Displacement / loading): 136%
Structure weight / hull surface area: 102 lbs/sq ft or 497 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.12
- 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
(*) Main gun shells = 200, 75mm guns shells = 1500