Advanced Zunyi - Class
Heavy Cruiser
Displacement:
12.712 t light; 13.471 t standard; 13.946 t normal; 14.326 t full load
Dimensions:
Length overall / water x beam x draught
649,93 ft / 632,22 ft x 64,96 ft x 20,67 ft (normal load)
198,10 m / 192,70 m x 19,80 m x 6,30 m
Armament:
12 - 7,99" / 203 mm guns (4x3 guns), 255,24lbs / 115,78kg shells, 1944 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, 2 raised mounts - superfiring
16 - 4,13" / 105 mm guns (8x2 guns), 35,32lbs / 16,02kg shells, 1944 Model
Dual purpose guns in deck mounts with hoists
on side, evenly spread
24 - 1,97" / 50,0 mm guns (12x2 guns), 3,81lbs / 1,73kg shells, 1944 Model
Anti-aircraft guns in deck mounts with hoists
on centreline, all aft, all raised mounts - superfiring
40 - 0,79" / 20,0 mm guns (20x2 guns), 0,24lbs / 0,11kg shells, 1944 Model
Machine guns in deck mounts
on side, evenly spread, 10 raised mounts
Weight of broadside 3.729 lbs / 1.692 kg
Shells per gun, main battery: 220
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 5,51" / 140 mm 401,57 ft / 122,40 m 9,28 ft / 2,83 m
Ends: 2,95" / 75 mm 208,60 ft / 63,58 m 9,28 ft / 2,83 m
22,05 ft / 6,72 m Unarmoured ends
Main Belt covers 98% of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 7,99" / 203 mm 3,94" / 100 mm 5,91" / 150 mm
2nd: 3,74" / 95 mm 2,56" / 65 mm -
3rd: 0,79" / 20 mm 0,39" / 10 mm -
- Armour deck: 1,97" / 50 mm, Conning tower: 3,94" / 100 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 3 shafts, 102.371 shp / 76.369 Kw = 31,80 kts
Range 5.000nm at 12,00 kts
Bunker at max displacement = 855 tons
Complement:
641 - 834
Cost:
£8,089 million / $32,358 million
Distribution of weights at normal displacement:
Armament: 466 tons, 3,3%
Armour: 3.212 tons, 23,0%
- Belts: 1.075 tons, 7,7%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 1.020 tons, 7,3%
- Armour Deck: 1.069 tons, 7,7%
- Conning Tower: 49 tons, 0,4%
Machinery: 2.614 tons, 18,7%
Hull, fittings & equipment: 6.269 tons, 45,0%
Fuel, ammunition & stores: 1.234 tons, 8,8%
Miscellaneous weights: 150 tons, 1,1%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
18.416 lbs / 8.353 Kg = 72,2 x 8,0 " / 203 mm shells or 2,0 torpedoes
Stability (Unstable if below 1.00): 1,03
Metacentric height 2,8 ft / 0,9 m
Roll period: 16,3 seconds
Steadiness - As gun platform (Average = 50 %): 52 %
- Recoil effect (Restricted arc if above 1.00): 0,87
Seaboat quality (Average = 1.00): 1,03
Hull form characteristics:
Hull has raised forecastle, rise forward of midbreak, low quarterdeck
Block coefficient: 0,575
Length to Beam Ratio: 9,73 : 1
'Natural speed' for length: 25,14 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 17,00 degrees
Stern overhang: 9,19 ft / 2,80 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 27,89 ft / 8,50 m
- Forecastle (20%): 24,93 ft / 7,60 m (23,62 ft / 7,20 m aft of break)
- Mid (50%): 23,62 ft / 7,20 m (20,67 ft / 6,30 m aft of break)
- Quarterdeck (20%): 19,69 ft / 6,00 m (20,34 ft / 6,20 m before break)
- Stern: 19,69 ft / 6,00 m
- Average freeboard: 22,40 ft / 6,83 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 89,5%
- Above water (accommodation/working, high = better): 192,4%
Waterplane Area: 29.342 Square feet or 2.726 Square metres
Displacement factor (Displacement / loading): 113%
Structure weight / hull surface area: 134 lbs/sq ft or 656 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1,03
- Longitudinal: 1,43
- Overall: 1,06
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Breakdown of Miscellaneous Weight:
- 25 tons for degaussing system
- 50 tons for radar equipment
- 50 tons for flag facilities
- 25 tons for general storage
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Ships in Class:
HICMS Guiyang; laid down 1944