Ernest Christley asks:

Some guys on the flyrotary list have be batting around ideas on how to
determine if the prop on a pusher is windmilling.

On my COZY MKIV, I look at my tachometer. I've had the engine quit on
me in a test, but it was still spinning, and the tach was registering.
Assuming the prop bolts haven't come off, the prop will be spinning if
the tach is indicating RPM.

Everybody's got a tach, right? Is that not sufficient?

--
Marc J. Zeitlin
http://www.cozybuilders.org/
Copyright (c) 2006