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Plane and Pilot magazine article

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Max Shauck from Baylor Univ. has been testing and promoting ethanol since the 1970's when he grew concerned about avgas availability for his Pitts Special(aerobatic plane). He even flew a plane across the Atlantic on ethanol to prove a point. In the most recent issue(May 2008) it talks about how about 1000 planes(mostly agricultural spray) have racked up 800,000 hours of flight in Brazil. Depending on compression ratio they are losing 10 to 20% range on fuel that costs about 25% of avgas. Up here that would be roughly 50%.

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They are using 100% ethanol down there. They have a little tank of avgas to start when cold. Would imagine the ethanol is 200% but just think of how much water you could add from the atmosphere without phase separation.

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