WesWorld

Here's another DD design from me. Smaller than the one I had before at < 1500t standard

I'm not sure whether to use 4 x 125mm or 6 x 100mm, and whether the relatively large torpedo arsenal is a good
idea.


Enter ship name, Siamese Destroyer laid down 1938

Displacement:
1,383 t light; 1,462 t standard; 1,598 t normal; 1,707 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(372.37 ft / 360.89 ft) x 32.81 ft x (11.81 / 12.32 ft)
(113.50 m / 110.00 m) x 10.00 m x (3.60 / 3.75 m)

Armament:
4 - 4.92" / 125 mm 50.0 cal guns - 55.12lbs / 25.00kg shells, 250 per gun
Dual purpose guns in deck and hoist mounts, 1938 Model
1 x Twin mount on centreline, forward deck forward
1 x Twin mount on centreline, aft deck aft
4 - 2.17" / 55.0 mm 55.0 cal guns - 5.51lbs / 2.50kg shells, 1,000 per gun
Anti-air guns in deck mounts, 1938 Model
1 x Twin mount on centreline, forward deck centre
1 raised mount
1 x Twin mount on centreline, aft deck centre
1 raised mount
8 - 0.98" / 25.0 mm 75.0 cal guns - 0.55lbs / 0.25kg shells, 1,500 per gun
Anti-air guns in deck mounts, 1938 Model
4 x Twin mounts on sides, evenly spread
4 raised mounts
Weight of broadside 247 lbs / 112 kg
Main Torpedoes
8 - 23.6" / 600 mm, 29.53 ft / 9.00 m torpedoes - 2.402 t each, 19.214 t total
In 2 sets of deck mounted centre rotating tubes
Mines
40 - 440.92 lbs / 200.00 kg mines - 7.874 t total
in Above water - Stern racks/rails

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.79" / 20 mm 0.39" / 10 mm 0.39" / 10 mm
2nd: 0.79" / 20 mm - -
3rd: 0.39" / 10 mm - -

- Conning towers: Forward 0.79" / 20 mm, Aft 0.00" / 0 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 34,378 shp / 25,646 Kw = 34.00 kts
Range 3,000nm at 15.00 kts
Bunker at max displacement = 246 tons

Complement:
126 - 164

Cost:
£1.036 million / $4.145 million

Distribution of weights at normal displacement:
Armament: 119 tons, 7.4%
- Guns: 71 tons, 4.4%
- Weapons: 48 tons, 3.0%
Armour: 11 tons, 0.7%
- Armament: 9 tons, 0.6%
- Conning Tower: 2 tons, 0.1%
Machinery: 761 tons, 47.6%
Hull, fittings & equipment: 477 tons, 29.8%
Fuel, ammunition & stores: 215 tons, 13.5%
Miscellaneous weights: 15 tons, 0.9%
- On freeboard deck: 5 tons
- Above deck: 10 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
489 lbs / 222 Kg = 8.2 x 4.9 " / 125 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.26
Metacentric height 1.4 ft / 0.4 m
Roll period: 11.6 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
- Recoil effect (Restricted arc if above 1.00): 0.41
Seaboat quality (Average = 1.00): 1.06

Hull form characteristics:
Hull has rise forward of midbreak,
a normal bow and large transom stern
Block coefficient (normal/deep): 0.400 / 0.410
Length to Beam Ratio: 11.00 : 1
'Natural speed' for length: 21.80 kts
Power going to wave formation at top speed: 66 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 25.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00%, 24.61 ft / 7.50 m, 17.72 ft / 5.40 m
- Forward deck: 20.00%, 17.72 ft / 5.40 m, 17.72 ft / 5.40 m
- Aft deck: 45.00%, 11.81 ft / 3.60 m, 11.81 ft / 3.60 m
- Quarter deck: 15.00%, 11.81 ft / 3.60 m, 11.81 ft / 3.60 m
- Average freeboard: 14.72 ft / 4.49 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 171.9%
- Above water (accommodation/working, high = better): 113.9%
Waterplane Area: 7,564 Square feet or 703 Square metres
Displacement factor (Displacement / loading): 73%
Structure weight / hull surface area: 34 lbs/sq ft or 166 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.50
- Longitudinal: 1.93
- Overall: 0.57
Cramped machinery, storage, compartmentation space
Adequate accommodation and workspace room

"Oh, look! A storm front....."

"Storm front?"

"Yes, storm front. With big waves...."

"Oh,oh... Not these again!"

*SNAP!*

"Ooops.... Too late....."

*GLUG-GLUG*

... it's getting old Hooman...

Yeah, I know, 11:1 == bad?

but she's rather short-legged, so not really meant to operate in the open (and stormy) seas.

I think he knows the risks he's running. I'm not sure I'd run them but he obviously feels safe never having to operate in stormy seas...

Where are the 55mm AA guns from? It's not a common calibre for an AA gun and not very successful in this period without lots of R&D. I doubt they will be autos, maybe semi-auto like the British 57mm but again not as sophisicated since Siam hasn't got the skills to build modern AA weapons from scratch. If they come from elsewhere in Satsuma then its reasonable to assume they will work (kind of, even the RN hasn't mastered the semi-auto and the Admiralty is beathing down Vickers neck).

I'm assuming the 55mm's are rebarrelled versions of the Iberian 57mms, though I'm not sure why Siam would bother with the expense of the rebarrelling job.

The concern I can see with the 11:1 l:b ratio is that while the seas off Siam aren't normally that rough, there IS typhoon season, and at this time period they'll strike with little warning.

What is the designs role?

Out of curiosity, do I need to create a "Non-Wesworld Ship Design" folder for interested observers to post designs such as this, or for members to post other non-sim designs? If I was archive-diving a few years from now and found this thread, I might get a tad confused over whether or not it was a serious proposal for Siam, or just an introductory Springsharp. Of course there's always the Warship Projects Discussion Boards as a catch-all for NPC designs like this.

That may not be a bad idea, how about folders for air and land as well?

Quoted

Originally posted by Vukovlad
That may not be a bad idea, how about folders for air and land as well?

There's pretty limited action in the Land Folder for even Wesworld-related stuff. We've had a few awkward issues regarding folder permissions arising from the number of folders we have, so perhaps just one all-encompassing Non-WW Design Folder would be most apropos.

Too many sub folders will make navigating the board difficult, so I agree, one non-WW-design board should do.