When I overheated my engine and it quit, there was very little compression left, though I didn't know it at the time. I must admit that I even wasted some time trying to get it to stop windmilling. I slowed the RV-6 down to near stall speed but the prop just kept windmilling.
During my flight test period I did some testing with the ignition off. Windmilling would stop somewhere around 90 kts and start again somewhere around 100 kts. Very easy to air start.
I am sure that the low compression accounted for the difference... something to think about when calculating glide distances.
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David Leonard
Turbo Rotary RV-6 N4VY
2.17:1 PSRU
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