It was likely the worst type of failure mode of a crank shaft! They were
lucky that none of the broken pieces or debris hit the windshield at the
time of this event!
Dr. Hsu
On Mon, Mar 4, 2024, 2:36 AM Adam Deem wrote:
> It was a Sonex with an AeroVee VW engine, not sure what the root caus
Steve had me send my 69mm 1045 German forged steel crank to Ken Shawoosch (
Spelling of his last name may not be correct, but the pronunciation is correct
) , early in the 1990’s to have my crank deep drilled and tapered. He said that
they will break within 10 hours of any prop strike. Mine was
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