April 13, 2010
By Mike Collins
A twin-engine Piper Seminole, registered as an experimental aircraft, is burning SwiftFuel during daily demonstration flights at the Sun ’n Fun International Fly-In and Expo. The 100SF fuel, developed by Swift Enterprises Ltd. in West Lafayette, Ind., uses biomass such as sorghum and switch grass—instead of oil—to produce a high-octane fuel the company says could replace leaded avgas in piston-engine airplanes ( see “Grass for Gas,” September 2009 AOPA Pilot).
Erik Lindbergh, grandson of Charles Lindbergh, is serving as guest pilot on the flights, along with staff from Embry-Riddle Aeronautical University. “The future of general aviation is quickly evolving toward alternative aviation fuels,” Lindbergh said. “I’m delighted to be working with Swift Enterprises and Embry-Riddle to help solve the leaded fuel challenge for general aviation.”
SwiftFuel does not use lead, ethanol, toluene, or oxygenates, and produces fewer pollutants than 100LL fuel—while providing 15 percent more volumetric energy, the company said. The fuel does not require any additives or stabilizers, and the company believes it could be “a near drop-in replacement” for today’s 100LL fuel.
Embry-Riddle Aeronautical University plans to phase in lead-free renewable fuel for its training aircraft, the nation’s largest collegiate fleet. Engineers in the Eagle Flight Research Center, a laboratory in the College of Engineering at Embry-Riddle’s Daytona Beach, Fla., campus, will perform the certification testing needed to enable more than 40 Cessna 172s, nearly half of the university’s fleet of 93 aircraft, to use Swift fuel.
"Having Embry-Riddle come with us to Sun ‘n Fun, one of the premier airshows in the United States, brings credibility and attention to what we have been doing to ease the pressure general aviation has been under not only to get rid of leaded fuel but also to reduce the need for crude oil in the United States," said Mary Rusek, president of Swift Enterprises.
Mike Collins has worked for AOPA’s media network since 1994. He holds a private pilot certificate with an instrument rating.
AOPA expressed concern in a meeting with town officials from East Hampton, New York, that restrictions proposed to curb airport noise “overwhelmingly” generated by transient commercial flights would unfairly burden traditional airport users.
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