WesWorld

Dingyuan - Class
Trainingship


Ships:
HICMS Dingyuan laid down Q1/1942


Displacement:
973 t light; 1.001 t standard; 1.176 t normal; 1.317 t full load

Dimensions:
Length overall / water x beam x draught
214,18 ft / 209,97 ft x 32,48 ft x 15,09 ft (normal load)
65,28 m / 64,00 m x 9,90 m x 4,60 m

Armament:
1 - 3,46" / 88,0 mm guns in single mounts, 20,79lbs / 9,43kg shells, 1942 Model
Dual purpose gun in a deck mount with hoist
on centreline forward
4 - 1,46" / 37,0 mm guns (1x4 guns), 1,55lbs / 0,70kg shells, 1942 Model
Anti-aircraft guns in deck mount
on centreline aft, all raised guns - superfiring
2 - 0,79" / 20,0 mm guns (1x2 guns), 0,24lbs / 0,11kg shells, 1942 Model
Machine guns in deck mount
on centreline aft, all raised guns - superfiring
Weight of broadside 27 lbs / 12 kg
Shells per gun, main battery: 250

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 1.485 shp / 1.108 Kw = 14,50 kts
Range 6.000nm at 14,00 kts
Bunker at max displacement = 316 tons

Complement:
56 men
56 cadets


Cost:
£0,270 million / $1,078 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0,3%
Machinery: 39 tons, 3,3%
Hull, fittings & equipment: 681 tons, 57,9%
Fuel, ammunition & stores: 203 tons, 17,3%
Miscellaneous weights: 250 tons, 21,3%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
3.547 lbs / 1.609 Kg = 170,6 x 3,5 " / 88 mm shells or 2,1 torpedoes
Stability (Unstable if below 1.00): 1,02
Metacentric height 1,0 ft / 0,3 m
Roll period: 13,9 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0,05
Seaboat quality (Average = 1.00): 2,00

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0,400
Length to Beam Ratio: 6,46 : 1
'Natural speed' for length: 14,49 kts
Power going to wave formation at top speed: 43 %
Trim (Max stability = 0, Max steadiness = 100): 25
Bow angle (Positive = bow angles forward): 10,00 degrees
Stern overhang: 0,85 ft / 0,26 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19,03 ft / 5,80 m
- Forecastle (20%): 18,04 ft / 5,50 m
- Mid (40%): 17,06 ft / 5,20 m (9,84 ft / 3,00 m aft of break)
- Quarterdeck (15%): 9,84 ft / 3,00 m
- Stern: 9,84 ft / 3,00 m
- Average freeboard: 13,10 ft / 3,99 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 37,7%
- Above water (accommodation/working, high = better): 98,7%
Waterplane Area: 4.198 Square feet or 390 Square metres
Displacement factor (Displacement / loading): 331%
Structure weight / hull surface area: 80 lbs/sq ft or 392 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1,55
- Longitudinal: 10,67
- Overall: 1,88
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Excellent seaboat, comfortable, can fire her guns in the heaviest weather


Breakdown of misc. weight = 250tons:
Meeting rooms and amenities - 100tons
Accomodations for 56cadets at 2tons each - 112tons
other equipment - 38tons