Jstorrshall
Member
Anybody seen this guy?
https://www.contraelectric.com/
His basic idea is to use separate electric motors on coaxial contrarotating props.
A nice presentation:
https://www.ati.org.uk/wp-content/u...for-contra-rotating-propeller-systems-PDF.pdf
And for the completist, a NASA test of CR props from 1986:
https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19860013081.pdf
https://www.contraelectric.com/
His basic idea is to use separate electric motors on coaxial contrarotating props.
A nice presentation:
https://www.ati.org.uk/wp-content/u...for-contra-rotating-propeller-systems-PDF.pdf
And for the completist, a NASA test of CR props from 1986:
https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19860013081.pdf