At 1730 eastern time, an amateur-built Velox Revolution II struck a hangar during attempted recovery from an aerobatic maneuver at Lake Norman Airpark. The pilot received minor injuries. He said he entered a flat spin at 4,000 feet but kept the airplane in the flat spin too long. When he realized he had insufficient altitude to recover the airplane normally or to bail out, he raised the nose to a vertical attitude and applied full power. The airplane then collided with a hangar and was destroyed in the post-crash fire.