On Thursday, August 1, 2013 12:30:08 PM UTC-6, Tony wrote:
http://www.wired.com/autopia/2013/07/cng-airplane/



could be perfect for a club towplane since we fuel up at the club field 99.9% of the time.

To me it looks like panic and desperation in the face of the impending demise of 100LL.