I want to add something to the autogas STC that hasn't been mentioned yet. The STC is not the complete story. With the STC paperwork you then go to your IA to have two 337 forms prepared. There is a seperate STC for the airframe and the engine because not all airframes have fuel systems which are known to work with autogas. My very agreeable IA charges $25 per 337 to do the paperwork. Your results may vary.
A little story that may encourage you to make the change to autogas. A cessna 150 from my field in Mass decided to fly down to NYC to see the Statue of Liberty one day. At low altitude over the river a valve chose to stick on one of the cylinders. The very accomodating ATC controller guided him into a landing at Lagardia. Then the disaster began. After rolling out on the big runway he was met by a truck from the port athority there to collect $250 landing fee. They found him a place to park but there was no mechanic on the field and no maintenance facility for little airplanes. He finally persuaded a mechanic from a field 20 miles away to come and change a cylinder. Now when the mechanic wants to be agreeable the valve guide can be reamed out without taking off the cylinder with about an hours work. When the mechanic isn't quite so agreeable the cylinder can be changed at a somewhat higher price. Now don't you suppose he wishes he were running on autogas which has a very much lower incidence of valve sticking? Bob Condon
<<attachment: winmail.dat>>
