http://airboyd.tv
National Archives and Records Administration
THE TURBOSUPERCHARGER: MASTER OF THE SKIES
War Department. Army Air Forces. (06/20/1941 - 09/26/1947)
ARC Identifier 2781 / Local Identifier 18-AF-123. Army Air Forces training film. On the line maintenance, depot maintenance, and flight operation of the turbosupercharger, using a B-17 for demonstration. Explains basic principles of the induction, exhaust, cooling, control, and lubrication systems. Shows how the pilot operates the controls. General O.P. Echols speaks on the value of high altitude flying and Dr. Sanford A. Moss poses with the Collier Trophy (1941). Includes still pictures of experiments on Pike's Peak.
Like many inventions, full use of super charging is not possible without improvements in seemingly unrelated technologies. In this case, high octane fuels. Without 100+ octane av gas, detonation (knock) quickly became a problem. The higher octane fuels allowed higher compression ratios and greater boost before the onset of detonation.
As an aside, it saddens me to see the propaganda in this film. At very high altitudes bombing results were poor. Losses were dreadful until later in the war.
deltad2 2 months ago
Turbos were being experimented with during World War 1. 1937 was a big year in the USA for the turbo and the most successful was the XP-37 and YP-37. This fighter became operational in small numbers, some in Alaska. The YP-37 wasn't a success as a fighter, but paved the way for the later development of the B-17, B-24, P-38, P-43, P-47 and many others. Turbos were under development in Russia, Japan, England, and Germany. However, the United States was the sole country to mass produce them.
CaptJackSpeed 8 months ago
brilliant clip thanks for posting
slicktrx 9 months ago
I knew our turbochargers were used in tank engines. But first time that USAF used in airplanes too.
Seems to me that in WWII turbochargers saved a lot of lifes and helped to win in 1945.
Now I'll look different at mine SAAB one. Thanks for posting.
Antagraber 9 months ago
lol very ilustrative
maxrioseco 1 year ago
thanks for posting this!
avnavcgm 1 year ago