On Sat, 29 Apr 2006 10:35:33 -0400, John wrote:
snip
Many or most aircraft mogas STCs prohibit gasoline containing ethanol
due to its tendency to attack certain seals, gaskets, and parts in
aircraft fuel tanks, fuel systems, and engines. So for those of you who
use motor fuel in airplanes, is the lack of motor gasoline that doesn't
contain ethanol becoming a problem?


By the way ethanol contains less energy per gallon than gasoline. Enjoy!

I think it's 60% less by volume, but it is clean burning.
If cars can be modified to use ethanol and the team that shows up at
Oshkosh each year burns ethanol, what would it take to convert an
airplane to use fuel with ethanol? I realize on mine with bladder
tanks it might be considerable, OTOH on mine it's not a problem as the
compression is too high to get an autogas STC anyway.

Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com