A Controversy for Starters Skeptics abound concerning the current spate of vertical takeoff and landing (VTOL) machines. The latest entry in the competition comes from the trio of Erik Lindbergh, Eric Bartsch, and Pat Anderson of Embry-Riddle Aeronautical University. Their Verdego eight-rotor machine looks a bit like the Airbus A3 Vahana, but has pusher, rather than puller, propellers on the rear wing. On his Linked In page, Bartsch jumps into an ongoing fray with his article, “The Inevitability of Short-Range Urban Aviation – Why I’m Betting Against the “Flying Uber” Skeptics.” It takes aim at the opposing point of view in “Going Direct: On the Insanity of Flying Ubers,” by Plane & Pilot writer Robert Goyer. To shorten the two arguments to their most primal levels, Eric Bartsch thinks sky taxis are coming and are inevitable. Goyer thinks the idea is insane and not supported by even basic physics or available mechanical systems. He doesn’t acknowledge an advantage to having …
Sun Flyer’s Two and Four Seat Electric Aircraft
George Bye has spent the last decade developing a viable two-seat training aircraft that would be electrically powered. His efforts included a Cessna 172 that took wing on battery power, and have evolved to the current product, a sleek two-seater that has 105 deposits to buy worldwide. At AirVenture 2017, George displayed the Sun Flyer 2 and announced plans to introduce a four-seater, the Sun Flyer 4. With ground tests complete on the aircraft and its 45-pound Emrax motor, George envisions flight tests coming this fall for the 2. Even given successful flight tests, certification may take two to three years. George has been working with the FAA to enable certification under Part 23 rules, and has made great headway in obtaining acceptance of electric powerplants on training aircraft. Flying Magazine reported in February that, “Developers of electric aircraft are rejoicing now that the Part 23 rewrite is complete. Unlike before, the new rule will allow for certified airplanes to …
MGM Compro Enjoys Good News in Europe and at Oshkosh
MGM Compro is a Czech company that seems to have a motor on half of every light electric airplane flying today. Their motors have powered Airbus’s electric Cri-Cri (four 15-kilowatt units), the firm’s e-Fan, Ruppert Composite’s Archaeopteryx, e-Volo’s Volocopter, and any number of motorgliders and light sport aircraft buzzing quietly over Europe, and soon, America. Certification in Europe Certification is usually the route to wide acceptance of a new motor, proof that the unit has passed some rigorous tests and is suited for use in aircraft. As Martin Dvorsky, Managing Director for the firm reports: We are really proud to announce that [the] MGM COMPRO complex propulsion unit just obtained [a] CERTIFICATE OF AIRWORTHINESS issued by [the] Slovak Federation of Ultra Light Aircraft. This certificate means that the glider and its system has positively passed all the safety and flight tests and can be legally operated by LSZ license holder (UL license counterpart).” Note the clever motor and propeller folding and retraction …