We have a glider pilot in our club from Poland. In fact, he is a national champ over there, immigrated over here on a work visa. Very nice fellow. Anyway, he brings his gorgeous glider to the field all the time. His is powered by a small electric motor with a folding prop (folds back when the motor is shut down).

What's nice about this is he powers it up, flys it high as a powered plane, then shuts the motor down and glides around. When it comes down to low, he simply poweres it back up and climbs back up. He's often up for over an hour.

There's the advantage of electric over glow power. Once your glow runs out of fuel, well, once you get to low, that's it for that flight.

CGr