WesWorld

Quoted

HICMS Dingyuan laid down 1942

Displacement:
1.252 t light; 1.282 t standard; 1.340 t normal; 1.386 t full load

Dimensions:
Length overall / water x beam x draught
214,23 ft / 208,04 ft x 32,48 ft x 15,42 ft (normal load)
65,30 m / 63,41 m x 9,90 m x 4,70 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: 150

Armour:

- Armour deck: 1,97" / 50 mm, Conning tower: 0,98" / 25 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 1.633 shp / 1.218 Kw = 14,50 kts
Range 2.500nm at 12,00 kts
Bunker at max displacement = 104 tons

Complement:
109 - 143

Cost:
£0,335 million / $1,341 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0,3%
Armour: 160 tons, 11,9%
- Belts: 0 tons, 0,0%
- Torpedo bulkhead: 0 tons, 0,0%
- Armament: 0 tons, 0,0%
- Armour Deck: 157 tons, 11,7%
- Conning Tower: 3 tons, 0,2%
Machinery: 43 tons, 3,2%
Hull, fittings & equipment: 797 tons, 59,5%
Fuel, ammunition & stores: 87 tons, 6,5%
Miscellaneous weights: 250 tons, 18,7%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2.235 lbs / 1.014 Kg = 107,5 x 3,5 " / 88 mm shells or 1,0 torpedoes
Stability (Unstable if below 1.00): 0,85
Metacentric height 0,6 ft / 0,2 m
Roll period: 17,0 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- Recoil effect (Restricted arc if above 1.00): 0,10
Seaboat quality (Average = 1.00): 2,00

Hull form characteristics:
Hull has raised forecastle, rise forward of midbreak, low quarterdeck
Block coefficient: 0,450
Length to Beam Ratio: 6,41 : 1
'Natural speed' for length: 14,42 kts
Power going to wave formation at top speed: 45 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 18,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 19,05 ft / 5,81 m
- Forecastle (20%): 17,06 ft / 5,20 m (15,75 ft / 4,80 m aft of break)
- Mid (50%): 15,06 ft / 4,59 m (11,07 ft / 3,38 m aft of break)
- Quarterdeck (15%): 8,27 ft / 2,52 m (11,07 ft / 3,38 m before break)
- Stern: 8,27 ft / 2,52 m
- Average freeboard: 13,31 ft / 4,06 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 34,1%
- Above water (accommodation/working, high = better): 98,5%
Waterplane Area: 4.310 Square feet or 400 Square metres
Displacement factor (Displacement / loading): 256%
Structure weight / hull surface area: 91 lbs/sq ft or 444 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1,72
- Longitudinal: 11,78
- Overall: 2,09
Caution: Poor stability - excessive risk of capsizing
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

comments and help welcome

Quoted

The deck armor may or may not be a problem so far as stability is concerned. Given the massive amount of hull strength left over, stick an armor belt in to provide some weight lower down.

Quoted

Enter ship name, Enter country Enter ship type laid down 1942

Displacement:
962 t light; 989 t standard; 1,176 t normal; 1,326 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 deck mount
on centreline forward
2 - 1.46" / 37.0 mm guns (1x2 guns), 1.55lbs / 0.70kg shells, 1942 Model
Anti-aircraft guns in deck mount
on side amidships, all raised guns
2 - 0.79" / 20.0 mm guns (1x2 guns), 0.24lbs / 0.11kg shells, 1942 Model
Machine guns in deck mount
on side, all raised guns
Weight of broadside 24 lbs / 11 kg
Shells per gun, main battery: 250

Machinery:
Oil fired boilers, complex reciprocating steam engines,
Geared drive, 2 shafts, 1,485 ihp / 1,108 Kw = 14.50 kts
Range 5,000nm at 14.00 kts
Bunker at max displacement = 336 tons

Complement:
99 - 130

Cost:
£0.303 million / $1.212 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0.3 %
Machinery: 81 tons, 6.9 %
Hull, fittings & equipment: 628 tons, 53.4 %
Fuel, ammunition & stores: 214 tons, 18.2 %
Miscellaneous weights: 250 tons, 21.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
2,765 lbs / 1,254 Kg = 133.0 x 3.5 " / 88 mm shells or 1.5 torpedoes
Stability (Unstable if below 1.00): 1.05
Metacentric height 1.0 ft / 0.3 m
Roll period: 13.5 seconds
Steadiness - As gun platform (Average = 50 %): 50 %
- Recoil effect (Restricted arc if above 1.00): 0.03
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): 48.9 %
- Above water (accommodation/working, high = better): 98.7 %
Waterplane Area: 4,198 Square feet or 390 Square metres
Displacement factor (Displacement / loading): 269 %
Structure weight / hull surface area: 74 lbs/sq ft or 362 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.46
- Longitudinal: 9.86
- Overall: 1.77
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

Quoted

Chinese Sail Training Ship laid down 1942

Displacement:
1,257 t light; 1,294 t standard; 1,780 t normal; 2,168 t full load

Dimensions: Length overall / water x beam x draught
265.74 ft / 229.66 ft x 39.37 ft x 17.22 ft (normal load)
81.00 m / 70.00 m x 12.00 m x 5.25 m

Armament:
1 - 3.46" / 88.0 mm guns in single mounts, 20.79lbs / 9.43kg shells, 1942 Model
Quick firing gun in deck mount
on centreline forward
Weight of broadside 21 lbs / 9 kg
Shells per gun, main battery: 150

Machinery:
Diesel Internal combustion motors,
Geared drive, 1 shaft, 1,439 shp / 1,073 Kw = 13.50 kts
Range 20,000nm at 12.00 kts
Bunker at max displacement = 874 tons

Complement:
136 - 178

Cost:
£0.327 million / $1.309 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0.1 %
Machinery: 38 tons, 2.1 %
Hull, fittings & equipment: 767 tons, 43.1 %
Fuel, ammunition & stores: 523 tons, 29.4 %
Miscellaneous weights: 450 tons, 25.3 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
5,157 lbs / 2,339 Kg = 248.0 x 3.5 " / 88 mm shells or 2.5 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 1.5 ft / 0.5 m
Roll period: 13.6 seconds
Steadiness - As gun platform (Average = 50 %): 56 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.400
Length to Beam Ratio: 5.83 : 1
'Natural speed' for length: 15.15 kts
Power going to wave formation at top speed: 38 %
Trim (Max stability = 0, Max steadiness = 100): 28
Bow angle (Positive = bow angles forward): 54.45 degrees
Stern overhang: 13.12 ft / 4.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 16.40 ft / 5.00 m
- Forecastle (20 %): 13.94 ft / 4.25 m
- Mid (50 %): 11.48 ft / 3.50 m
- Quarterdeck (15 %): 12.30 ft / 3.75 m
- Stern: 13.12 ft / 4.00 m
- Average freeboard: 12.87 ft / 3.92 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 36.9 %
- Above water (accommodation/working, high = better): 90.5 %
Waterplane Area: 5,263 Square feet or 489 Square metres
Displacement factor (Displacement / loading): 326 %
Structure weight / hull surface area: 80 lbs/sq ft or 390 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.39
- Longitudinal: 6.29
- Overall: 1.61
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

Notes:
- Repeat of Fu Chi.
- Range is actually 5,000nm at 12.00 kts; 655.5 tons of ballast simmed as bunker fuel
- 270 tons of miscellaneous weight for masts+sails+etc

Quoted

Originally posted by BruceDuncan

Quoted

The deck armor may or may not be a problem so far as stability is concerned. Given the massive amount of hull strength left over, stick an armor belt in to provide some weight lower down.

I don't think deck armor is really needed by a training ship, and its removal would certainly help stability. I'd increase the radius of the ship which would also provide mass lower in the hull and is likely to reduce the light tonnage.

The drawing itself is interesting. It looks rather Germanic but the guns look vaguely Russian. Where did you come across it?

Quoted

Originally posted by Delta Force

Quoted

Originally posted by BruceDuncan

Quoted

The deck armor may or may not be a problem so far as stability is concerned. Given the massive amount of hull strength left over, stick an armor belt in to provide some weight lower down.

I don't think deck armor is really needed by a training ship, and its removal would certainly help stability. I'd increase the radius of the ship which would also provide mass lower in the hull and is likely to reduce the light tonnage.

The drawing itself is interesting. It looks rather Germanic but the guns look vaguely Russian. Where did you come across it?

Wouldn't having an armored deck allow for heavier guns to be equipped later? Or does the sim take into account deck reinforcement?

Quoted

Originally posted by BruceDuncan
While I would defer to someone with more knowledge than me, my limited experience suggests that they are independent variables.

However, this is a training ship - it's not meant to carry 'heavy' guns. What it needs to be is weatherly and cost effective - an armored deck contributes to neither.