WesWorld

A small Filipino destroyer design to free larger destroyers from escort duty, allowing them to accompany the battlecruisers and the carriers. Feel free to discuss.

DD36, Philippines Destroyer laid down 1936

Displacement:
849 t light; 880 t standard; 1,060 t normal; 1,204 t full load

Dimensions: Length overall / water x beam x draught
266.00 ft / 264.11 ft x 26.90 ft x 12.14 ft (normal load)
81.08 m / 80.50 m x 8.20 m x 3.70 m

Armament:
1 - 4.53" / 115 mm guns in single mounts, 48.50lbs / 22.00kg shells, 1936 Model
Dual purpose gun in a deck mount with hoist
on centreline forward
1 - 4.53" / 115 mm guns in single mounts, 48.50lbs / 22.00kg shells, 1936 Model
Dual purpose gun in a deck mount with hoist
on centreline aft
4 - 1.38" / 35.0 mm guns (2x2 guns), 1.32lbs / 0.60kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
4 - 0.54" / 13.7 mm guns in single mounts, 0.11lbs / 0.05kg shells, 1936 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 103 lbs / 47 kg
Shells per gun, main battery: 150
4 - 24.0" / 610 mm above water torpedoes

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm 0.59" / 15 mm -
2nd: 0.79" / 20 mm - -
3rd: 0.59" / 15 mm - -

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 26,230 shp / 19,568 Kw = 32.35 kts
Range 6,000nm at 15.00 kts
Bunker at max displacement = 324 tons

Complement:
92 - 120

Cost:
£0.609 million / $2.434 million

Distribution of weights at normal displacement:
Armament: 12 tons, 1.2 %
Armour: 5 tons, 0.5 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 5 tons, 0.5 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 538 tons, 50.8 %
Hull, fittings & equipment: 293 tons, 27.6 %
Fuel, ammunition & stores: 211 tons, 19.9 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
280 lbs / 127 Kg = 6.0 x 4.5 " / 115 mm shells or 0.2 torpedoes
Stability (Unstable if below 1.00): 1.15
Metacentric height 0.9 ft / 0.3 m
Roll period: 11.8 seconds
Steadiness - As gun platform (Average = 50 %): 53 %
- Recoil effect (Restricted arc if above 1.00): 0.32
Seaboat quality (Average = 1.00): 0.71

Hull form characteristics:
Hull has rise forward of midbreak
and transom stern
Block coefficient: 0.430
Length to Beam Ratio: 9.82 : 1
'Natural speed' for length: 18.74 kts
Power going to wave formation at top speed: 73 %
Trim (Max stability = 0, Max steadiness = 100): 75
Bow angle (Positive = bow angles forward): 6.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 18.04 ft / 5.50 m
- Forecastle (20 %): 12.47 ft / 3.80 m
- Mid (50 %): 12.47 ft / 3.80 m (10.83 ft / 3.30 m aft of break)
- Quarterdeck (15 %): 10.83 ft / 3.30 m
- Stern: 10.83 ft / 3.30 m
- Average freeboard: 12.09 ft / 3.69 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 173.2 %
- Above water (accommodation/working, high = better): 54.7 %
Waterplane Area: 4,633 Square feet or 430 Square metres
Displacement factor (Displacement / loading): 67 %
Structure weight / hull surface area: 30 lbs/sq ft or 147 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.51
- Longitudinal: 2.61
- Overall: 0.60
Hull space for machinery, storage, compartmentation is cramped
Room for accommodation and workspaces is cramped
Poor seaboat, wet and uncomfortable, reduced performance in heavy weather

You have some free composite str., I bet if you reduce draft you may find your seakeeping rise some while the vessel becomes cheaper.

Oh, and may I suggest some miscellaneous weight for the torpedoes, and possibly ASW gear?

Isn´t she a bit slow?

Quoted

Originally posted by HoOmAn
Isn´t she a bit slow?

And small, and lightly armed....

The twelve Ariete/Audaz class torpedo boats ordered from Italy in 1931 fulfill the same role. Maybe just order some more?

grumbles about 'friends' selling weapons to folks likely to shoot at the Dutch

A deja vu?

Quoted

Originally posted by Red Admiral

Quoted

Originally posted by HoOmAn
Isn´t she a bit slow?

And small, and lightly armed....

The twelve Ariete/Audaz class torpedo boats ordered from Italy in 1931 fulfill the same role. Maybe just order some more?

Something to think about. How much are the construction charges?

I think it was about 20% beforehand.

They're only marginally useful weapons. Maybe if Italy started selling high technology aeroplanes, submarines etc. then things would be more worrying

Quoted

Originally posted by Red Admiral
I think it was about 20% beforehand.

They're only marginally useful weapons. Maybe if Italy started selling high technology aeroplanes, submarines etc. then things would be more worrying

If you go 15% I think you have an order for six starting in Q4 1935 followed by six more sometime next year.