How To Fly The P-47 - High Altitude Flight and Aerobatics (1943)

Courtesy FedFlix, public.resource.org

National Archives and Records Administration

How to Fly the P-47: High Altitude Flight and Aerobatics

War Department. Army Air Forces. (06/20/1941 - 09/26/1947)

ARC Identifier 2772 / Local Identifier 18-AF-107C. Demonstrates the Thunderbolt in dives, loops, slow rolls, Immelman turns, spins, and recoveries, and half rolls. Stresses precautions and proper speeds for various altitudes. Also explains functions of turbosupercharger and water injection systems in high altitude flight.

Made possible by a donation from Alexsandr Milewski.

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[flaircraft]

@noonedude101 My grandfather flew the P-47 in the Pacific during WWII. One time he mentioned that the P-47 pilots were forbidden to do negative G's and especially outside loops. The very next thing he said was "Of course, we did that kind of stuff all the time."

[chrisrobsoar]

The maxium speed Vne (Velocity Never Exceed) remains the same True Air Speed (TAS) as altitude increases. The Indicated Air Speed (IAS) is less because the air becomes less dense with altitude. It reduces by about 16% per 10,000ft. BTW: The True Air Speed Stall speed increase with altitude at the same rate that the Air Speed indicator under reads, so the IAS stall speed remains the same. When the stall speed and Vne meet, this is the maximum altitude the aircraft can fly.

[monsterzeroJr]

Achtung! Donnerbolz!

[KorvettenKapitan83]

This is a dream @uploader

[Bellerspitts]

There were some nice puffy clouds in 1943.

[scrfce123]

@colindhowell Yeah, I've heard of turbocharged Lycoming and Continental engines. They seem to find use in high end, pressurised aircraft. The turbo must also divert some compressed air to cabin A/C on these models???

[colindhowell]

@scrfce123 Actually, turbochargers are still often found in higher-end piston-engined aircraft used in general aviation.

[colindhowell]

@0MoTheG I'm sure the engines got lots of overhauls. As SabraStiehl posted above, big piston engines like this had short overhaul periods of only around a couple thousand hours. Might be worse for the P-47, with the added stresses of "war emergency power" operation. I'd assume when an engine had to be taken out for overhaul, the aircraft would have another engine swapped in to keep it in service.

[colindhowell]

@0MoTheG They did use both; the P-47's R-2800 engine included an internal geared supercharger, driven directly by the engine crankshaft, which further compressed the air already compressed by the turbosupercharger. However, a crankshaft-driven supercharger steals power from the engine, while a turbosupercharger does not, so the P-47's engine supercharger provided only modest boost to minimize the power loss; it relied on the turbo for high-altitude boost.

[colindhowell]

@freedomintheskies You're confused. "Turbocharger" is just a shortened term for "turbosupercharger". They're different names for the same thing: a compressor driven by an exhaust turbine. A turbo-compound engine is different: the exhaust turbine doesn't drive a compressor, it drives the engine crankshaft. Turbo-compounding has no effect on manifold pressure; it just extracts more energy from the exhaust that would otherwise be wasted.

[colindhowell]

@scrfce123 Well, engineering technology has improved, but also the modern turbos you normally hear about are for car and motorcycle engines. They're small and can easily handle very high speeds. The P-47's engine is much bigger and its turbo is a monster in comparison; check around 9:30 in the "pilot familiarization" film in this series. In such a large turbo the rotational stresses are greater, so it can't turn anywhere near as fast.

[GreenAce92]

The young one talks down to a woman hahahahaha