Wirbelwind
Airman
- 99
- Sep 8, 2009
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https://live.staticflickr.com/2056/4513098206_866ae7c38a_b.jpg
https://4.bp.blogspot.com/-gqdJdi-PkQU/UwchSLRCjPI/AAAAAAAAAKg/Lrpz9utSRLY/s1600/P-47D+42-26088.jpg
42-26357 | American Air Museum in Britain
Roger Freeman Collection FRE 2845 | American Air Museum in Britain
Roger Freeman Collection FRE 9512 | American Air Museum in Britain
UPL 46370 | American Air Museum in Britain
42-26258 | American Air Museum in Britain
42-25721 | American Air Museum in Britain
42-26057 | American Air Museum in Britain
I don't mean to hijack this conversation, I appreciate all the knowledge this website contains but I have a question. Originally only the Farmingdale produced P47-22, -25 and -27s came from the factory with the HS hydraulic prop. Maybe 10% of the total P47 production. Today on the dozen or so flight capable P47s just about all of them have the hydraulic propeller and not the Curtis electrical one. In particular "SNAFU" is a P47G built by Curtis that originally had the small "toothpick" Curtis electric prop but now has the Hydraulic HS prop. What would be involved in changing a P47 over from an electric prop to hydraulic?You may also add a bunch of 56th FG quite famous frames. The S/N not necessarily always visible on pics, yet known. These would be 'Stalag Luft III...', 'Silver Lady' and Mike Gładych's 'Pengie III'. Pictures are rather easy to find, I believe.
So for aircraft like P-47D-22-RE 42-25969, which in the attached photo appears to have a CE prop, would these props have been changed after manufacture/delivery as a field mod?
Were there any -22-RE aircraft that came from the factory with CE props?
My understanding is that all P47B, P47C and P47D up through the P47D-21 manufactured either in Farmingdale NY (RE suffix) or Evansville In. (RA suffix) came from the factory with the small Curtis electric "toothpick" props. Then the P47D-22 RE Farmingdale had the Hamilton Standard hydraulic prop while at the same time the P47D-23 RA Evansville had the Curtis electric paddle bladed prop from the factory. From this point on all Thunderbolts left the factory with Paddle bladed props either Hamilton Standards from Farmingdale NY or Curtis Electric from Evansville IN. The Hydraulic props only came on Farmingdale produced P47D-22 RE razer back and the P47D-25RE & P47D-27RE bubble tops. After that, from the P47D-28 through the P47M and P47N they all had Curtis electric paddle bladed props. Also, there were two versions of the Curtis electric paddle bladed prop as with the toothpick prop both had the cuff near the hub but one had a symmetrical blade and the other asymmetrical. You can see the difference in blade shape if you look at various pictures of bubble top Jugs. The P47M and P47Ns all came from the factory with the symmetrical blades. As an aside, when Robert Johnson had his P47D 21 small Curtis Electric prop changed to a paddle blade prop in the field New Years day 1944 he received the symmetrical blade prop like the ones that would later come on P47Ms and P47Ns from the factory.
Thanks for the clarification regarding N-5's having the asymmetrical props. My limited knowledge of this propeller differences comes from decades of looking at different pictures in various books. If anyone has actual documentation from Republic I would appreciate being able to study it.
Again, this website if full of people with various bits of great information, so I have two questions.
1) Is the Hamilton Standard hydraulic prop used on the P47 the same as the one on the F4u-4 Corsair?
2) In general, razor back P47's had 305 gallons of internal fuel and bubbletops had 370 gallons. I have read that the last two razor back versions the P47-22 and P47-23 had the larger tankage installed. Can anyone confirm this?
Thanks.
Thanks for the chart, I haven't seen this one before.If you haven't seen it, here's a chart with more Prop/Engine information. http://www.wwiiaircraftperformance.org/p-47/p-47-tactical-chart.jpg
Bad Gonzo! N-25 I have meant. My mistake, sorry.Thanks for the clarification regarding N-5's having the asymmetrical props.
It would have rather been replacement, then modification. But yes field mounted prop. Possibly with whole QEC. Possibly not.
Yes. And there were shortages of HS props, so often there was no choice really.