1913 Reformist Chinese Destroyer

[Borys]

[Borys constant talk about NEDS can usually be safely ignored, as it has very little foundation in reality.

Am I now the official
DELUSIONAL GRUMPY
of this board?
Borys

[Logi]

yes  ;D

[Korpen]

Replying to myself:
While i often feel it is quite rude to post ones own designs in other peoples threads, I want to do so to show that one can get more out of that tonnage:

G-Class/ Export, Netherlands / MK Jager laid down 1913 (Engine 1909)

Displacement:
   760 t light; 791 t standard; 922 t normal; 1 027 t full load

Dimensions: Length overall / water x beam x draught
   287,25 ft / 282,15 ft x 27,89 ft x 9,84 ft (normal load)
   87,55 m / 86,00 m x 8,50 m  x 3,00 m

Armament:
     5 - 4,02" / 102 mm guns in single mounts, 32,00lbs / 14,51kg shells, 1913 Model
     Breech loading guns in deck mounts
     on centreline ends, majority aft, 3 raised mounts - superfiring
     2 - 0,31" / 8,0 mm guns in single mounts, 0,02lbs / 0,01kg shells, 1913 Model
     Machine guns in deck mounts
     on side, all amidships, all raised mounts - superfiring
   Weight of broadside 160 lbs / 73 kg
   Shells per gun, main battery: 145
   4 - 17,7" / 450 mm above water torpedoes

Armour:
  - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   0,39" / 10 mm         -               -

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 17 225 shp / 12 850 Kw = 29,00 kts
   Range 3 000nm at 12,00 kts
   Bunker at max displacement = 235 tons (90% coal)

Complement:
   83 - 108

Cost:
   £0,120 million / $0,480 million

Distribution of weights at normal displacement:
   Armament: 20 tons, 2,2 %
   Armour: 4 tons, 0,5 %
      - Belts: 0 tons, 0,0 %
      - Torpedo bulkhead: 0 tons, 0,0 %
      - Armament: 4 tons, 0,5 %
      - Armour Deck: 0 tons, 0,0 %
      - Conning Tower: 0 tons, 0,0 %
   Machinery: 475 tons, 51,5 %
   Hull, fittings & equipment: 243 tons, 26,3 %
   Fuel, ammunition & stores: 162 tons, 17,6 %
   Miscellaneous weights: 18 tons, 1,9 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     238 lbs / 108 Kg = 7,3 x 4,0 " / 102 mm shells or 0,2 torpedoes
   Stability (Unstable if below 1.00): 1,42
   Metacentric height 1,4 ft / 0,4 m
   Roll period: 10,0 seconds
   Steadiness   - As gun platform (Average = 50 %): 72 %
         - Recoil effect (Restricted arc if above 1.00): 0,25
   Seaboat quality  (Average = 1.00): 1,07

Hull form characteristics:
   Hull has rise forward of midbreak
   Block coefficient: 0,417
   Length to Beam Ratio: 10,12 : 1
   'Natural speed' for length: 16,80 kts
   Power going to wave formation at top speed: 65 %
   Trim (Max stability = 0, Max steadiness = 100): 67
   Bow angle (Positive = bow angles forward): 15,00 degrees
   Stern overhang: 0,00 ft / 0,00 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      19,03 ft / 5,80 m
      - Forecastle (14 %):   17,06 ft / 5,20 m
      - Mid (30 %):      17,06 ft / 5,20 m (9,19 ft / 2,80 m aft of break)
      - Quarterdeck (10 %):   9,19 ft / 2,80 m
      - Stern:      9,84 ft / 3,00 m
      - Average freeboard:   11,69 ft / 3,56 m

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 185,0 %
      - Above water (accommodation/working, high = better): 91,4 %
   Waterplane Area: 4 894 Square feet or 455 Square metres
   Displacement factor (Displacement / loading): 49 %
   Structure weight / hull surface area: 26 lbs/sq ft or 125 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0,50
      - Longitudinal: 1,66
      - Overall: 0,56
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is adequate
   Ship has slow, easy roll, a good, steady gun platform

[Logi]

the design is 10t overweight  :P

Its a fine design, but i use 21" torpedoes so... Also, I don't use metric measurements  :-[

Maybe I'll try something along those lines next time.

[Walter]

Also, I don't use metric measurements  :-[

I use both... something that is obvious in the designs I posted a bit earlier in the H2 report. The BB was simmed using metric and the torpedo boat was simmed using imperial... and I have absolutely no idea why I did that.

[P3D]

Lengthen your ship to L:D~11. For destroyers that usually helps.

[Logi]

Yongqi, Chinese Destroyer laid down 1913 (Engine 1909)

Displacement:
   758 t light; 790 t standard; 924 t normal; 1,031 t full load

Dimensions: Length overall / water x beam x draught
   307.10 ft / 300.00 ft x 27.00 ft x 8.00 ft (normal load)
   93.60 m / 91.44 m x 8.23 m  x 2.44 m

Armament:
      5 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1913 Model
     Breech loading guns in deck mounts with hoists
     on centreline ends, majority aft, 2 raised mounts - superfiring
      2 - 0.50" / 12.7 mm guns in single mounts, 0.06lbs / 0.03kg shells, 1913 Model
     Machine guns in deck mounts
     on side, all amidships
   Weight of broadside 160 lbs / 73 kg
   Shells per gun, main battery: 150
   4 - 21.0" / 533.4 mm above water torpedoes

Armour:
   - Gun armour:   Face (max)   Other gunhouse (avg)   Barbette/hoist (max)
   Main:   1.00" / 25 mm   0.50" / 13 mm      0.50" / 13 mm
   2nd:   0.50" / 13 mm         -               -

Machinery:
   Coal and oil fired boilers, steam turbines,
   Direct drive, 2 shafts, 14,925 shp / 11,134 Kw = 28.00 kts
   Range 3,040nm at 12.00 kts
   Bunker at max displacement = 241 tons (90% coal)

Complement:
   83 - 108

Cost:
   £0.117 million / $0.468 million

Distribution of weights at normal displacement:
   Armament: 20 tons, 2.2 %
   Armour: 10 tons, 1.1 %
      - Belts: 0 tons, 0.0 %
      - Torpedo bulkhead: 0 tons, 0.0 %
      - Armament: 10 tons, 1.1 %
      - Armour Deck: 0 tons, 0.0 %
      - Conning Tower: 0 tons, 0.0 %
   Machinery: 456 tons, 49.4 %
   Hull, fittings & equipment: 251 tons, 27.2 %
   Fuel, ammunition & stores: 166 tons, 18.0 %
   Miscellaneous weights: 20 tons, 2.2 %

Overall survivability and seakeeping ability:
   Survivability (Non-critical penetrating hits needed to sink ship):
     246 lbs / 112 Kg = 7.7 x 4.0 " / 102 mm shells or 0.2 torpedoes
   Stability (Unstable if below 1.00): 1.26
   Metacentric height 1.1 ft / 0.3 m
   Roll period: 11.0 seconds
   Steadiness   - As gun platform (Average = 50 %): 70 %
         - Recoil effect (Restricted arc if above 1.00): 0.59
   Seaboat quality  (Average = 1.00): 1.00

Hull form characteristics:
   Hull has a flush deck
   Block coefficient: 0.499
   Length to Beam Ratio: 11.11 : 1
   'Natural speed' for length: 17.32 kts
   Power going to wave formation at top speed: 63 %
   Trim (Max stability = 0, Max steadiness = 100): 70
   Bow angle (Positive = bow angles forward): 20.00 degrees
   Stern overhang: 2.00 ft / 0.61 m
   Freeboard (% = measuring location as a percentage of overall length):
      - Stem:      14.00 ft / 4.27 m
      - Forecastle (20 %):   12.00 ft / 3.66 m
      - Mid (50 %):      11.00 ft / 3.35 m
      - Quarterdeck (15 %):   10.00 ft / 3.05 m
      - Stern:      10.00 ft / 3.05 m
      - Average freeboard:   11.19 ft / 3.41 m
   Ship tends to be wet forward

Ship space, strength and comments:
   Space   - Hull below water (magazines/engines, low = better): 178.4 %
      - Above water (accommodation/working, high = better): 89.5 %
   Waterplane Area: 5,392 Square feet or 501 Square metres
   Displacement factor (Displacement / loading): 55 %
   Structure weight / hull surface area: 26 lbs/sq ft or 126 Kg/sq metre
   Hull strength (Relative):
      - Cross-sectional: 0.50
      - Longitudinal: 1.08
      - Overall: 0.54
   Hull space for machinery, storage, compartmentation is cramped
   Room for accommodation and workspaces is cramped
   Ship has slow, easy roll, a good, steady gun platform

305nm at 28.00 kts

Misc. Weight:
4t Torpedoes
16t reserve space