The proprietary engine design, he said, can fly at two or three times the speed of a commercial diesel engine, running any renewable fuels. Stevenson said that in next year's PAV Challenge he plans to fly a small plane that uses his own engine.
August 14, 2007 4:00 AM PDT
Photo by: Stefanie Olsen/CNET News.com
| Caption by: Stefanie Olsen
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