P-47D-22

[Legioneod]

Since the devs stated a D-22 is likely I've decided to make a post about it. I'm sure the devs have all this info but I figured I'd post some stuff for anyone interested. I'll keep adding to this topic as time goes on, just posting a little bit of stuff to start it off.

 

 

P-47D-22 is somewhat unique due to the fact that it is one of the few P-47 blocks fitted with the Hamilton Standard Prop. The Hamilton and Curtis Paddle Prop differ in their operation and in performance. The climb performance of both props is nearly identical, but there is a notable difference in level speed performance with the Hamilton giving between 5-8 mph speed advantage over the Curtis.

 

Hamilton Prop.

Spoiler

Performance test of different props for the P-47.

http://www.wwiiaircraftperformance.org/p-47/P-47D_43-75035_Eng-47-1714-A.pdf

 

Power settings at the time of the Normandy invasion were 64" at 2700 rpm. 56" wasn't in use as far as I'm aware from P-47's operating from the UK. P-47s started using 64" around Feb-March 44, as such the standard should be 64" at 2700 rpm similar to the D-28.

Spoiler

 

P-47s in the UK already operating at 64" before May 1944.

 

P-47s were release for 70" MAP in late June of 44 when using 150 grade fuel. 150 grade fuel was the standard in the UK so there is a strong case for adding 70" MAP as a modification.

http://www.wwiiaircraftperformance.org/p-47/24june44-progress-report.pdf

 

Critical Altitudes and speeds for various power settings. 

 

P-47D: 56" 2700 rpm has a critical altitude of 29,000ft and a high speed of 443mph. 

P-47D :64" 2700 rpm has critical altitude of around 24,500ft and high speed of 437-443mph 

P-47D: 70" 2700 rpm has critical altitude of 21,500ft and high speed of 445mph. 

 

Doc listing 70" performance and Critical altitude.

http://www.wwiiaircraftperformance.org/p-47/17june44-progress-report.pdf

 

Chart for P-47D at 13,200 lbs with 70" WEP. Not sure why the Critical Alt is different from the one listed in the above document. (Keep in mind speed charts don't show all the details, for instance speed above critical alt doesn't tel the details. As you can see in the chart, Critical Alt. speed for 56" (29,000ft) in the chart is only listed at around 420-425mph, this speed must have been without water injection because with WI the top speed of 56" @ 29,000ft is around 443mph.

Spoiler

 

The document below shows a D-22 top speed for 56". Even when using the higher powers of 64" or 70" when flying at 29,000ft it still should be able to achieve the listed speeds below since it was still capable of 56" at 29,000ft)

 

 

D-22 only has 15 gallons of water so time at WEP with WI will be shorter when using 64" or 70", though with 150 fuel it was able to operate 64" without water though at a performance cost of around 8 mph.

Water flow rate for 64" was around 2.1 gallons per minute which would give only 7-8 minutes at WEP with Water Injection. I couldn't find the flow rate when using 70" but I'm assuming it's slightly faster and would give even less time at WEP.

http://www.wwiiaircraftperformance.org/p-47/P-47_Water-Injection_3feb44.pdf

 

Not sure if the flow rate was different between 150 and 130 grade fuels, I couldn't find any info on it.

Either way with 150 grade fuel 64-65" should be available with or without water injection.

 

Modifications for the D-22 were pretty much your standard loadout of bombs just like the D-28. Though cluster munitions would be nice. Also the standard mirror similar to the P-38 would be much better, though multiple types of mirrors were fitted.

Spoiler

 

 

Mirror types:

Notice the pilot has three mirrors mounted on his P-47. 2 standard types mounted on the right and left fuselage and then a spitfire style mirror mounted on the canopy frame.

 

 

Edited February 6, 2020 by Legioneod

[Legioneod]

Thought it'd be nice to show some of the paint schemes that could possibly be added for the D-22, if anyone has any more to add just post them below.

 

P-47D-22 paint schemes. Will keep adding as I find more.

Website with various P-47 schemes. http://www.fw190.altervista.org/P47D-Razorback.html

 

 

 

 

 

 

 

 

Not sure if next two are D-22, they have the hamilton prop so I'm assuming they are.

 

 

 

 

 

Not D-22 but D-23s, figured I'd add a few since the only difference between the two is the factory they were built at and the prop used. Basically the same aircraft.

 

D-23 skins.

Spoiler

 

 

 

 

Redtails P-47s just because they're cool.

 

Spoiler

 

 

 

 

Edited March 7, 2020 by Legioneod

[=362nd_FS=RoflSeal]

From the P-47N manual, water consumption is listed as 1.9gal/min at 54.5 "Hg to 2.5 gal/min at 72 "Hg. I know its a different plane and engine variant, but ultimately the engine is really the same but beefed up to handle 2800 hp with no problem and a new turbocharger to achieve that at 30,000ft, the flow rates probably are the same.

Edited March 10, 2020 by =362nd_FS=RoflSeal

[Legioneod]

16 minutes ago, =362nd_FS=RoflSeal said:

From the P-47N manual, water consumption is listed as 1.9gal/min at 54.5 "Hg to 2.5 gal/min at 72 "Hg. I know its a different plane and engine variant, but ultimately the engine is really the same but beefed up to handle 2800 hp with no problem and a new turbocharger to achieve that at 30,000ft, the flow rates probably are the same.

Yep flow rates probably wouldn't be far off. For the D-22 64" the flow rate is listed as 2.1 gallons per minute so 70" would probably be close 2.5 gallons like you said.

Problem with the D-22 is it only has 15 gallons of water which shortens the amount of time at WEP. It's the reason they increase water capacity in the later blocks, due to increased powers.

Edited March 10, 2020 by Legioneod