ORIGINAL: JAS
What about a 2nd prop, not attached to the motor, but free-wheeling behind the active prop?
Hmmmmm . . I LIKE that idea, Jas. I reckon it would work to some extent, but I am guessing it would cost efficiency, so more power needed ??? . . worth experimenting with though. Not expensive to try . . [sm=72_72.gif]
I think you might have to test it though . . I doubt us 'plebs' will be able to tell the difference
Cheers, JB