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Radial Engine Starting Techniques
On Sunday, November 7, 1999 at 7:00:00 PM UTC+11, Jim Beasley Jr. wrote: Why don't you buy the engine manuals? They will provide the best source of information. Many motors are direct drive from the starter, and some use an inertial starter. That is interchangeable (R1340). The old P-36 used a shotgun shell to get it going. Phillip Hopkins wrote in message ... I originally posted this on rec.aviation.military, with surprisingly no takers. Among my colleagues, we have had much discussion about the methods used in starting large radial engines - though none of us have any real knowledge on the subject. We have guessed that some very large engines use a flywheel energy storage mechanism which is somehow coupled to the engine crankshaft at start time. The suggestion was also made of the use of gas cartridges which are used to operate an air motor which turns over the crankshaft, a la the movie "The Phoenix" with Jimmy Stewart. ****** ****** I wonder if someone, who is knowledgeable on the subject, could describe the methods used is cranking over large radial engines during starting, such as those on B-17s, B-29s, B-36s, even DC-3s. A brief history of radial engine starting techniques from the 1920s to the 1950s would also be very interesting. Thanks in advance. Phillip Hopkins |
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