Sustainable Skies in San Francisco – the Sequel

Dean Sigler Electric Powerplants, Hybrid Aircraft, SAS, Sky Taxis, Sustainable Aviation Leave a Comment

Getting personal once more, this entry highlights my adventures at the 2018 Sustainable Aviation Symposium as reported in the first person. The Sustainable Aviation Symposium for 2018 began its Saturday session with J. Philip Barnes, the Senior Technical Fellow at Pelican Aero Group, who expanded an idea he has been developing for several years – that of flying on energy generated and stored by a self-launching sailplane’s motion through the air.  With both a single-seat Coulomb Keeper and larger Faraday First model to analyze, Phil turns to seminal works by Glauert and MacCready to create a motor/generator coupled with a propulsion fan that doubles as a propeller and windmill.  Clever use of switching in the control circuitry should enable high-efficiency …

EAS IX: Dr. Seeley’s Magnum Opus

Dean Sigler Electric Powerplants, GFC, Sustainable Aviation Leave a Comment

Your editor first met Dr. Brien Seeley, founder and President of the CAFE Foundation, at the Western Workshop for the Experimental Soaring Association in 2007.  Dr. Seeley spoke about the CAFE Foundation and its many areas of research, including its first two Electric Aircraft Symposiums.  Seven years later these events and this blog are among the few resources for people seeking information on this developing field. He spoke then about a novel idea, an aerial taxi service that would eventually become fully autonomous, hauling people on short-to-medium range trips in small, electric aircraft that would fly out of very small airports.  This seemed a bit of science-fiction at the time, but Dr. Seeley has continued to promote this idea, gaining …