David Ullman: Flying on Multiple Tiny Motors

Dean Sigler Batteries, Electric Powerplants, Sky Taxis, Sustainable Aviation 0 Comments

David Ullman, a professor emeritus at Oregon State University, predicted electric flight’s future in articles in 2009* and 2010**.  His predictions have come (mostly) true and David is working to fulfill the rest.  His background in mechanical and aeronautical engineering provides credibility for his prognostications, and he’s taking practical steps to take electric aviation to a next, very creative level. While Uber’s Elevate Summit in Dallas earlier this year focused on big-money players in the vertical aviation world, David and co-creator Vincent H. Homer promoted their paper, “The IDEAL for Near-VTOL Aircraft.”  IDEAL represents “Integrated Distributed Electric – Augmented Lift” flight, using “thrust from distributed electric propulsion to improve the lift and drag performance of the aircraft during takeoff, cruise …

The Electric-Powered Aircraft, A Sequel

Dean Sigler Electric Powerplants 1 Comment

David Ullman, a professor at Oregon State University in Corvallis, Oregon, author,  and owner of his own consulting firm, Robust Decisions, has published part two of his article, “The Electric Powered Aircraft,” that first appeared in Kitplanes’ October 2009 issue (see our October 18, 2009 entry, “Hear the Hum?  Kitplanes Does”) .  You won’t have to rush to the nearest bookstore for the sequel, since this is online in the Experimental Aircraft Association’s Experimenter.  A great deal of the Experimenter is fired up with speculation and skepticism about electric aircraft and their feasibility in the current issue, including an editorial by Patrick Panzera, long-time engine guru and editor of the e-zine.  A great many of the readers’ comments have a “not ready for …

Hear the Hum? Kitplanes Does.

Dean Sigler Electric Powerplants 1 Comment

Kitplanes has an article of great interest to CAFE followers in its November issue. Dr. David Ullman, Oregon State University professor emeritus of Mechanical Engineering Design, was inspired by his attendance at the Third Annual Electric Aircraft Symposium in April to write a two-part article (the finale’ to be in the December issue) about the exciting future of electric flight. The first part, “Hear the Hum?” provides an overview of what’s currently happening in electric aircraft, and includes a one-page pictorial sidbar of volt-driven flying machines at Oshkosh this year by Dave Martin. In a nod to the CAFE Foundation, it includes a concise explanation of the Aviation Green Prize.  Ullman and Martin share the belief that we will be …