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> I want to measure the glide performance of my 360. When I bring the
> engine slowly back to idle and begin a glide at 105 kts with the
> mixture at full rich, the engine starts backfiring.

Mike, when you're measuring glide performance, pull the prop all the way
aft. This will improve your glide considerably as well as stop the
backfiring. With the 2 blade MT on our 320, I see about 1200 rpm at 105k
with the prop control full aft and engine at idle. I have measured the glide
at 17/1. Much better than any spam can. Of course once you push the prop in
and/or start dirtying it up, she'll drop like a brick.

Bill
harrelson@erols.com
N5ZQ

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