They are as reliable as regular ignition gas engines in my experiences. They seem to start easier and idle slower than a regular gas engine. Be sure to follow all the guidelines in the "Gas/Glow how to" thread.

The Homelite 25cc might be a touch heavy for your plane. You might get away with mounting servos in the rear, but in truth, gassers should be used on airplanes with about 1000 square inches of wing or more. Fighter planes have high wing loadings to begin with, and if you make yours even heavier with a Homelite, you might not like the plane much....

As a side note, the Homelite 30cc weighs the same as a 25cc and looks identical, but has considerably more power. They were often used in leaf blowers, and have been found in later model Ryobi weedeaters as well.

AV8TOR