Today, the CEO of the CNDO Mr. Cheung presents the newest ship type of the chinese navy.
Zunyi, China Pirate Hunter laid down 1932
Displacement:
8.183 t light; 8.879 t standard; 10.570 t normal; 11.923 t full load
Dimensions: Length overall / water x beam x draught
581,50 ft / 557,74 ft x 55,77 ft x 23,79 ft (normal load)
177,24 m / 170,00 m x 17,00 m x 7,25 m
Armament:
9 - 7,99" / 203 mm guns (3x3 guns), 255,24lbs / 115,77kg shells, 1931 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, majority forward, 1 raised mount - superfiring
Main guns limited to end-on fire
4 - 3,46" / 88,0 mm guns (2x2 guns), 20,79lbs / 9,43kg shells, 1931 Model
Anti-aircraft guns in deck mounts with hoists
on centreline, all aft, all raised mounts - superfiring
8 - 1,46" / 37,0 mm guns (4x2 guns), 1,55lbs / 0,70kg shells, 1931 Model
Quick firing guns in deck mounts
on side, evenly spread
4 - 0,79" / 20,0 mm guns (2x2 guns), 0,24lbs / 0,11kg shells, 1931 Model
Machine guns in deck mounts
on side, all aft, all raised mounts - superfiring
Weight of broadside 2.394 lbs / 1.086 kg
Shells per gun, main battery: 360
8 - 21,0" / 533 mm above water torpedoes
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 1,97" / 50 mm 389,44 ft / 118,70 m 8,96 ft / 2,73 m
Ends: 0,79" / 20 mm 149,93 ft / 45,70 m 8,96 ft / 2,73 m
18,37 ft / 5,60 m Unarmoured ends
Upper: 1,38" / 35 mm 389,44 ft / 118,70 m 8,01 ft / 2,44 m
Main Belt covers 107% of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3,35" / 85 mm 2,56" / 65 mm 0,98" / 25 mm
2nd: 1,57" / 40 mm 0,79" / 20 mm 0,59" / 15 mm
3rd: 0,28" / 7 mm 0,08" / 2 mm -
4th: 0,28" / 7 mm 0,08" / 2 mm -
- Armour deck: 1,38" / 35 mm, Conning tower: 3,15" / 80 mm
Machinery:
Diesel Internal combustion motors,
Geared drive, 3 shafts, 49.500 shp / 36.927 Kw = 28,50 kts
Range 8.000nm at 19,00 kts
Bunker at max displacement = 3.044 tons
Complement:
520 - 677
Cost:
£3,251 million / $13,003 million
Distribution of weights at normal displacement:
Armament: 299 tons, 2,8%
Armour: 1.287 tons, 12,2%
- Belts: 499 tons, 4,7%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 206 tons, 1,9%
- Armour Deck: 549 tons, 5,2%
- Conning Tower: 33 tons, 0,3%
Machinery: 1.480 tons, 14,0%
Hull, fittings & equipment: 4.766 tons, 45,1%
Fuel, ammunition & stores: 2.388 tons, 22,6%
Miscellaneous weights: 350 tons, 3,3%
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
16.558 lbs / 7.510 Kg = 64,9 x 8,0 " / 203 mm shells or 2,1 torpedoes
Stability (Unstable if below 1.00): 1,03
Metacentric height 2,2 ft / 0,7 m
Roll period: 15,8 seconds
Steadiness - As gun platform (Average = 50 %): 92 %
- Recoil effect (Restricted arc if above 1.00): 1,33
Seaboat quality (Average = 1.00): 1,85
Hull form characteristics:
Hull has a flush deck
and transom stern
Block coefficient: 0,500
Length to Beam Ratio: 10,00 : 1
'Natural speed' for length: 26,95 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 25,00 degrees
Stern overhang: 9,68 ft / 2,95 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 30,18 ft / 9,20 m
- Forecastle (16%): 22,15 ft / 6,75 m
- Mid (50%): 22,47 ft / 6,85 m
- Quarterdeck (13%): 22,47 ft / 6,85 m
- Stern: 23,62 ft / 7,20 m
- Average freeboard: 22,95 ft / 7,00 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 74,5%
- Above water (accommodation/working, high = better): 145,5%
Waterplane Area: 21.554 Square feet or 2.002 Square metres
Displacement factor (Displacement / loading): 151%
Structure weight / hull surface area: 117 lbs/sq ft or 571 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1,00
- Longitudinal: 3,05
- Overall: 1,12
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather