Ring Around the Tail Boom

Dean Sigler Electric Powerplants, Sustainable Aviation 2 Comments

Call it Kismet, but three aircraft builders in wide-spread locations have recently announced similar approaches to putting a pusher propeller on the tail boom of three different ultralight sailplanes.  Each enjoys the benefits of mounting a propeller on a rear portion of a pod-and-boom fuselage: streamlining the folded propeller into the wake of fuselage/wing junction, enabling use of a large propeller, and turning the prop slowly to get the greatest efficiency from a small motor. Moyes Tempest from Down Under “Bodex,” a pilot in Brisbane, Australia write, “A mate and I managed to acquire two old Moyes Tempests last year. Although they fly well for what they are, we wanted to see if it could be converted to electric in …