At 1335 central time, an exhibition Piper J-3 Cub was substantially damaged when it fell from a 1961 Pontiac Catalina. The pilot, who was not injured in the accident, had attempted to take off from the specially configured automobile during an air show at the McKellar Sipes Regional Airport. The airplane landed as planned on top of the car, but when the pilot attempted to take off, the tail wheel caught on a support beam atop the car. The airplane then rolled off and crashed on the runway.