All of us are concerned about the future of avgas. Check out (on Google) the Neiva company, a subsidiary of Embraer. They are flying an aerial application aircraft (Are you there, Pierre?) called the Ipanema. Flies on straight ethanol, powered by a Lycoming O-540 putting out 325 Hp. Looks promising.
Tom Navar
RV-8 QB
Tom Navar
RV-8 QB