This plane was lost at the Rock Wood, TN airport in July 1998, due to a radio malfunction. About 20 seconds into the flight the plane wouldn't respond to the transmitter inputs and started a spiral climb to the right. The engine ran 3 1/2 minutes before it ran out of fuel. It was high enough that it was inside some scattered clouds. The plane then entered a slow circle and drifted down wind never to be seen again by me. Had my name, address and phone number on airplane but haven't heard a thing.