1936 Patrol Gunboat/Frigate

Probably, lol, and that's with reloads, 48 Total Depth charges, at 300lbs each.

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"It is better to type nothing and be assumed an ass, than to type something and remove all doubt." - Me

If I'm reading the report correctly each reload weighs 14400lb. At least that's the only way I can replicate the weights.

Anyway here's my take on it.

SpringSharp3 wrote:

Enter ship name, Enter country Enter ship type laid down 1936
DESIGN FAILURE: Displacement impossible with given dimensions

Displacement:
1.345.751 t light; 1.381.493 t standard; 1.786.303 t normal; 2.110.151 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(300,00 ft / 295,94 ft) x 30,00 ft x (14,00 / 1.290,68 ft)
(91,44 m / 90,20 m) x 9,14 m x (4,27 / 393,40 m)

Armament:
3 - 5,00" / 127 mm 38,0 cal guns - 59,33lbs / 26,91kg shells, 150 per gun
Dual purpose guns in deck and hoist mounts, 1936 Model
3 x Single mounts on centreline ends, majority forward
1 raised mount - superfiring
16 - 1,10" / 27,9 mm 45,0 cal guns - 0,67lbs / 0,30kg shells, 150 per gun
Anti-air guns in deck mounts, 1936 Model
4 x Quad mounts on sides, evenly spread
4 - 0,50" / 12,7 mm 45,0 cal guns - 0,06lbs / 0,03kg shells, 150 per gun
Machine guns in deck mounts, 1936 Model
4 x Single mounts on sides, evenly spread
Weight of broadside 189 lbs / 86 kg
Main DC/AS Mortars
2 - 300,00 lbs / 136,08 kg Depth Charges + 48 reloads - 6,696 t total
in Stern depth charge racks

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,50" / 38 mm 1,00" / 25 mm -
2nd: 1,00" / 25 mm - -

- Armoured deck - single deck:
For and Aft decks: 0,25" / 6 mm
Forecastle: 0,25" / 6 mm Quarter deck: 0,25" / 6 mm

- Conning towers: Forward 1,00" / 25 mm, Aft 0,75" / 19 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 10.278.610 shp / 7.667.839 Kw = 20,00 kts
Range 15.000nm at 12,00 kts
Bunker at max displacement = 728.658 tons
Caution: Too much power for number of propellor shafts

Complement:
24.429 - 31.759

Cost:
£461,325 million / $1.845,300 million

Distribution of weights at normal displacement:
Armament: 55 tons, 0,0 %
- Guns: 46 tons, 0,0 %
- Weapons: 8 tons, 0,0 %
Armour: 622 tons, 0,0 %
- Armament: 25 tons, 0,0 %
- Armour Deck: 41 tons, 0,0 %
- Conning Towers: 555 tons, 0,0 %
Machinery: 288.401 tons, 16,1 %
Hull, fittings & equipment: 1.056.270 tons, 59,1 %
Fuel, ammunition & stores: 440.552 tons, 24,7 %
Miscellaneous weights: 11 tons, 0,0 %
- Hull above water: 1 tons
- Above deck: 10 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1.709.620 lbs / 775.471 Kg = 27.353,9 x 5,0 " / 127 mm shells or 9,7 torpedoes
Stability (Unstable if below 1.00): 1,05
Metacentric height 0,9 ft / 0,3 m
Roll period: 13,2 seconds
Steadiness - As gun platform (Average = 50 %): 2 %
- Recoil effect (Restricted arc if above 1.00): 0,04
Seaboat quality (Average = 1.00): 0,00

Hull form characteristics:
Hull has rise forward of midbreak,
a normal bow and small transom stern
Block coefficient (normal/deep): 503,000 / 1,000
Length to Beam Ratio: 9,86 : 1
'Natural speed' for length: 17,24 kts
Power going to wave formation at top speed: 89 %
Trim (Max stability = 0, Max steadiness = 100): 40
Bow angle (Positive = bow angles forward): 7,00 degrees
Stern overhang: 1,48 ft / 0,45 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20,00 %, 21,00 ft / 6,40 m, 18,00 ft / 5,49 m
- Forward deck: 37,00 %, 18,00 ft / 5,49 m, 15,50 ft / 4,72 m
- Aft deck: 23,00 %, 8,00 ft / 2,44 m, 9,00 ft / 2,74 m
- Quarter deck: 20,00 %, 9,00 ft / 2,74 m, 10,00 ft / 3,05 m
- Average freeboard: 13,89 ft / 4,23 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 53,7 %
- Above water (accommodation/working, high = better): 0,9 %
Waterplane Area: 8.878 Square feet or 825 Square metres
Displacement factor (Displacement / loading): 309 %
Structure weight / hull surface area: 527 lbs/sq ft or 2.571 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 10,38
- Longitudinal: 6,36
- Overall: 7,19
Excellent machinery, storage, compartmentation space
Extremely poor accommodation and workspace room
Ship has quick, lively roll, not a steady gun platform
Caution: Lacks seaworthiness - very limited seakeeping ability

As you can see the main difference lies in how I've defined the freeboard aft.

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That which does not kill me has made a grave tactical error

Worklist

Source Materiel is always welcome.

One thing only: It's not a frigate but a sloop, otherwise it looks nice, though I might have opted to ship, at least one 36' personnel boat for foreign service, which, in all likelihood, would be were these ships ended up, most probably China and/or the Philippines.

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Well mine comes out perfect again:

Port Angeles, USA Patrol Gunboat laid down 1936

Displacement:
1,335 t light; 1,386 t standard; 1,785 t normal; 2,104 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(300.00 ft / 296.00 ft) x 30.00 ft x (14.00 / 15.84 ft)
(91.44 m / 90.22 m) x 9.14 m x (4.27 / 4.83 m)

Armament:
3 - 5.00" / 127 mm 38.0 cal guns - 59.33lbs / 26.91kg shells, 150 per gun
Dual purpose guns in deck and hoist mounts, 1936 Model
3 x Single mounts on centreline ends, majority forward
1 raised mount - superfiring
16 - 1.10" / 27.9 mm 45.0 cal guns - 0.67lbs / 0.30kg shells, 150 per gun
Anti-air guns in deck mounts, 1936 Model
4 x Quad mounts on sides, evenly spread
4 - 0.50" / 12.7 mm 45.0 cal guns - 0.07lbs / 0.03kg shells, 150 per gun
Machine guns in deck mounts, 1936 Model
4 x Single mounts on sides, evenly spread
Weight of broadside 189 lbs / 86 kg
Main DC/AS Mortars
2 - 300.00 lbs / 136.08 kg Depth Charges + 48 reloads - 6.696 t total
in Stern depth charge racks

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.50" / 38 mm 1.00" / 25 mm -
2nd: 1.00" / 25 mm - -

- Armoured deck - single deck:
For and Aft decks: 0.25" / 6 mm
Forecastle: 0.25" / 6 mm Quarter deck: 0.25" / 6 mm

- Conning towers: Forward 1.00" / 25 mm, Aft 0.75" / 19 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 5,882 shp / 4,388 Kw = 20.00 kts
Range 15,000nm at 12.00 kts
Bunker at max displacement = 718 tons

Complement:
136 - 178

Cost:
£0.449 million / $1.795 million

Distribution of weights at normal displacement:
Armament: 55 tons, 3.1 %
- Guns: 46 tons, 2.6 %
- Weapons: 8 tons, 0.5 %
Armour: 59 tons, 3.3 %
- Armament: 25 tons, 1.4 %
- Armour Deck: 28 tons, 1.6 %
- Conning Towers: 6 tons, 0.3 %
Machinery: 165 tons, 9.2 %
Hull, fittings & equipment: 652 tons, 36.6 %
Fuel, ammunition & stores: 450 tons, 25.2 %
Miscellaneous weights: 10 tons, 0.6 %
- Above deck: 10 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
6,132 lbs / 2,781 Kg = 98.1 x 5.0 " / 127 mm shells or 2.3 torpedoes
Stability (Unstable if below 1.00): 1.19
Metacentric height 1.1 ft / 0.3 m
Roll period: 11.8 seconds
Steadiness - As gun platform (Average = 50 %): 80 %
- Recoil effect (Restricted arc if above 1.00): 0.64
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has raised forecastle, low quarterdeck ,
a normal bow and small transom stern
Block coefficient (normal/deep): 0.503 / 0.524
Length to Beam Ratio: 9.87 : 1
'Natural speed' for length: 18.47 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 40
Bow angle (Positive = bow angles forward): 7.00 degrees
Stern overhang: 1.48 ft / 0.45 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 20.50 ft / 6.25 m, 18.00 ft / 5.49 m
- Forward deck: 30.00 %, 17.50 ft / 5.33 m, 15.00 ft / 4.57 m
- Aft deck: 35.00 %, 15.00 ft / 4.57 m, 14.50 ft / 4.42 m
- Quarter deck: 15.00 %, 7.50 ft / 2.29 m, 9.50 ft / 2.90 m
- Average freeboard: 15.11 ft / 4.61 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 39.5 %
- Above water (accommodation/working, high = better): 131.3 %
Waterplane Area: 6,072 Square feet or 564 Square metres
Displacement factor (Displacement / loading): 328 %
Structure weight / hull surface area: 49 lbs/sq ft or 239 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.83
- Longitudinal: 4.91
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

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"It is better to type nothing and be assumed an ass, than to type something and remove all doubt." - Me

Show me a good 36' Boat and I'll do what I can about where it goes.

_________________
"It is better to type nothing and be assumed an ass, than to type something and remove all doubt." - Me

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AU Projects: | Banbha et al. | New England: The Divided States
Blood and Fire

I have most of those, but there is only a 36' Motor Launch not a personnel boat

_________________
"It is better to type nothing and be assumed an ass, than to type something and remove all doubt." - Me

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AU Projects: | Banbha et al. | New England: The Divided States
Blood and Fire

The 36' motor launch is meant for transporting personnel/cargo, so it's a perfect solution IMO.
You could also throw in a 35' motor boat for transporting officers and a couple of smaller boats for misc tasks.

Thanks though, it will have a 30' Motor Launch on the port side. And there really is no room on each side for the longer boats.

So here is the history:

Port Angeles class Patrol Gunboat
Built: 1936-1938
Number built:28 (PG52-80)

Named for port cities and towns of America and her protectorates.

Losses:

USS Freeport PG-56 Grounded on reef near Guam during a storm, used as artillery Target, July 1939
USS Port Arena PG-63 Bombed and Sunk by Japanese Aircraft while in China, October 1940
USS Southport PG-54 Torpedoed by U-571 off of New York Harbor, April 1941
USS Darien PG-67 Bombed and Sunk by Japanese Aircraft in Pearl Harbor, December 7, 1941
USS Cape May PG-53 Bombed and Sunk by Japanese Aircraft in Manilla, Philippines, December 8, 1941
USS Palm Harbor PG-71 Torpedoed by U-231 while attempting a rescue crew of another torpedoed Escort, February 1942
USS Port Arthur PG-76 Bombed and Sunk by German and Italian Aircraft in the Mediterranean, June 1942
USS Newburyport PG-69 Torpedoed and sunk by German E-boats, September 1943

Remarkable Actions:
USS Cape Meares PG-62 Depth charged and sank U-551 off of New York Harbor, May 1941
USS Princeville PG-55 Sank Midget Submarine attempting to enter Pearl Harbor, along with USS Ward.
USS Ruston PG-65 Rescued 2 torpedoed cargo ships' crews while on escort duty, December 30, 1943.
USS Port Townsend PG-70 Destroyed 3 German E-boats while sustaining only minor damage, June 6, 1944

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"It is better to type nothing and be assumed an ass, than to type something and remove all doubt." - Me

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