On Nov 17, 10:58 am, Scott wrote:
Isn't a Benson a gyrocopter, not a helicopter? Gyrocopters can't hover,
they rely on airspeed to spin the rotor, correct?

Scott

You are probably quite right. All the Benson's I know of are
gyrocopters. My intent was to convey the very light weight design.
This was a true helicopter powered by an water cooled outboard engine
of some sort. It was about 30 years ago so I don't remember the
details.

Greg