This is the most punishing motor I have ever tried, and we had a perfect supersonic flight. Photos: https://www.flickr.com/photos/jurvetson/15057374639/#comment72157647206485329 Two flight computers, GPS transmitter and RF beacon on board. Zero to 1,392 MPH in 3.6 seconds, pulling 26 g's. XPRS 2014 in the Black Rock Desert