Robert M. Gary wrote:
http://www.age85.org/ProjectDescription.htm
They're testing it on a 201 right now.

Looking at the "project milestones" part of that webpage:

Project Milestones

* July, 1996 - Project Begins
* August, 1996 - Acquire Cessna 180
* January, 1997 - Team w/ TX Skyways
* June, 1997 - Install Ethanol Engine
* December, 1997 - Begin 500 Hour Fight Test
* November, 1998 - Finish 500 Hour Flight Test
* December, 1998 - Engine Teardown
* April, 1999 - FAA STC's Obtained
* July, 1999 - Project Expansion
* September, 1999 - Mooney 201 Acquired
* December, 1999 - Grumman Ag Cat Acquired


....it seems like they dropped off the face of the earth about 4 years
ago. The website itself has a 2003 copyright, but that of course
doesn't take much effort to update once in a while.

Well I'm not from the US, but it seems to me that you have quite the
farm lobby over there. I wouldn't be surprised if this is (or was,
depending on if the project actually is still alive) yet another
attempt by the farmers to peddle their wares with the help of
government subsidies.

I can't see why ethanol would be a particularly good fuel for planes;
it's hydrophilic (as opposed to gasoline or most petroleum products
which are hydrophobic), it eats rubber and has a low energy
content. Certainly not a straight replacement for avgas.


--
Janne Blomqvist