"anon" wrote in message
m...
"Juan Jimenez" wrote in message
...
That, Kyle, is a very old document. The drive issues were resolved a LONG
time ago and a man by the name of Jerry Kauth has made a good living over
the years selling the version of the drive system that was developed long
ago to address any issues they found.

You need to refer to the BD-5 specific documentation, not something
someone else wrote that happened to reference information about the BD-5.

Juan, your idea of the word "design" appears to include every improvement
made in the last 30 years by dozens of different builders and and
companies. I think this is begging the definition.

And Kyle's idea of shortcomings appears to include every issue that was
discovered during flight testing of the prototypes by the company and then
resolved. Any aircraft can have issue with harmonics from the engine or
drive system. To suggest that such is a problem with existing aircraft
because it was a problem identified and resolved more 30 years ago is
absurd. The BD-5 drive system that has been in production for that long is
designed to mitigate any drive system issues such as these with various
dampening methods when recip engines are used.



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