Sunday, 16 October 2011

Push Rod Failure

Alan Beggs' (Townsville) own design profile stunter didn't survive the test flight.
Alan said it was very responsive and flew well until the push rod
disconnected halfway through the flight resulting in a wingover
and power dive into the deck.
The fuselage was foam sheeted with balsa.
Oh well. Back to the drawing board!

I had a similar problem with my Blue Pants a few weeks ago at George Town. One of the leadouts pulled out of the bellcrank, causing the plane to wingover and bury itself to the leading edge in the ground. The only damage was a broken prop! The bent spring on the needle valve easily straightened. I build 'em STRONG!! The leadout is now repaired and the prop replaced. Just waiting for some good weather to fly it.

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