Chris Wedgwood wrote on 8/19/2020 7:33 AM:
On Tuesday, August 18, 2020 at 3:01:45 AM UTC+2, Dave Nadler wrote:
On Monday, August 17, 2020 at 8:01:08 PM UTC-4, Cumungus wrote:
When the propeller spins backwards in the demo reel, confidence that the
engineers will make an airworthy aircraft is instantly flushed down the toilet.

That feature is for backing into your parking space.

Or for landing downwind on golf courses..

That's an interesting idea, sort of the modern tail parachute like I had on my
H301. It was enormously powerful, but not controllable, just deployed or not. An
electrically powered propeller could be used to provide adjustable drag from zero
to "a lot". The design issue is keeping the propeller from folding backwards when
you want it to produce drag.

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me)
- "A Guide to Self-Launching Sailplane Operation"
https://sites.google.com/site/motorg...ad-the-guide-1