The Sharrow Propeller™ is a remarkable new, patented loop propeller design that CEO and inventor Greg Sharrow claims can out-perform conventional propellers in most major parameters of current propeller measurement. The propeller was developed over 7+ years by Sharrow Engineering LLC, a Philadelphia-based nautical and aeronautical design firm. For the full captain’s report and more about the Sharrow Propeller™, go to: https://boattest.com/Sharrow-Propeller Not a BoatTEST member? Sign up now and get our newsletter! For more information, visit: https://www.boattest.com/ Other companies: https://sovereignboatclub.com/ Follow us at: https://www.facebook.com/boattestcom/ https://www.instagram.com/boattestdotcom https://twitter.com/boattest