Living Up To a Standard

Dean Sigler Electric Powerplants, Sustainable Aviation 0 Comments

Ron Gremban is an early developer of plug-in electric hybrid (PHEV) automobiles, having helped convert hundreds of Toyota Priuses to extend their electric-only range and make them even more practical real-world automobiles. His 2008 writing on the differences between the Prius and Chevrolet’s Volt shows an ability to consider the actual physics and engineering involved rather than allowing the heat of the debate to obscure the realities. Backing from Dr. Andrew Frank of UC Davis gives further credibility to Gremban’s views. Given his demonstrated abilities and his dispassionate vision, it’s no surprise that Gremban would look at projected electric flight in ways that haven’t yet occurred to its most ardent promoters. On April 27, at the Friday evening Motors theme dinner, …

An Off-the-Shelf Hybrid Power Package

Dean Sigler Diesel Powerplants, Electric Powerplants, Sustainable Aviation 0 Comments

Dr. Andrew Frank of the University of California at Davis and Greg Stevenson of GSE, Inc. discussed Efficient Drive Trains at the fourth annual Electric Aircraft Symposium on April 23, 2010.  Their detailed look at a 75-kilogram (165 pound), 36 kilowatt (48 horsepower) power system for a high-performance sailplane gave attendees a clear look at what can be accomplished with off-the-shelf components, especially if the shelf is in either presenter’s warehouse. Dr. Frank, teaching and mentoring in the University’s Mechanical and Aeronautical Engineering Department, has been dubbed the father of the plug-in hybrid vehicle (PHEV), and has fielded winning teams for the Shell Eco-Marathon, with lightweight cars that obtained up to 3,500 miles per gallon.  The base two-horsepower Briggs and Stratton engine is …