EMG-6 Progress

Dean Sigler Electric Powerplants, Sustainable Aviation 5 Comments

Your editor has been on a road trip for several days, visiting the great Motel 6’s of California, and incidentally dropping in at Corning, California to stock up on olives and meet with Brian Carpenter, head of Rainbow Aviation.  He holds forth there as dealer for the full line of Quicksilver ultralight aircraft, does flight training, and with his wife Carol, presents training classes on repairing ultralight, light sport, weight shift, and even powered parachute type aircraft.  The pair has written several books on these topics. Brian recently teamed with Quicksilver to manufacture a kit aircraft that will eventually include one or more electric motors for propulsion.  With many ingenious features and a low introductory price, the all-metal airplane could …

Plettenberg’s New Motors – Ready for Real Airplanes?

Dean Sigler Electric Powerplants, Sustainable Aviation 5 Comments

Plettenberg is well known in the model airplane world for its large and powerful electric motors that pull or push giant-scale models – sometimes half the size of their real counterparts – into the air.  Brian Carpenter of Rainbow Aviation is even using them on his EMG-5 and EMG-6 ultralight aircraft.  Jean-Luc Soullier had two of them on an electric Cri-Cri.  His forum details that adventure and subsequent projects.  These Predator motors weigh a little over four pounds and can put out 15 horsepower and up to 99 pounds of thrust with the right propeller. Going beyond their model motors, Plettenberg has bold thoughts to share about its new, bigger and less model-like units, including their 150 kilowatt Nova series …

EMG-5 Pulls Forward

Dean Sigler Electric Powerplants, Sustainable Aviation 0 Comments

Brian Carpenter of Tangent Aircraft Development in Corning, California is crafting one of the more exotic ultralight aircraft in the history of ultralights. Your editor visited his shop in late September, and viewed progress at that point. Brian had most of the previously clecoed fuselage disassembled, and was weighing parts and options for shaving ounces. He has now turned to producing an on-line newsletter to keep followers posted.   In his first EMG-5 newsletter, Brian provides a quick look at the rapid reassembly and refinement that has taken place since. “The month of October has been our first full month to work uninterrupted on the project. We have made significant gains on the prototype as well as tooling for the …

EMG-5 Electric Motorglider

Dean Sigler Electric Powerplants, Sustainable Aviation 2 Comments

This isn’t Brian Carpenter’s first time at the small airplane rodeo.  He’s built at least a dozen aircraft, designed several from scratch, and even entertained the hosts of TV’s Mythbusters series with a series of rides in his team’s ultralights. His latest creation at Tangent Aircraft is a sleek Part 103 ultralight that seems to break or bend the rules on several fronts, presenting a twin-pivoting-motored, Fowler-flapped, retractable-gear craft that would seem to be too complex to fall into legal 103 status – or even into something the average novice private pilot would be allowed to fly.  The 36-foot span and 105-square-foot wing would seem too fast to meet stall limits. Carpenter explained his design philosophy to your editor a …