At 10:45 CDT, a Beech B19 on approach for landing at Haerr Field was struck by a Robinson R-22 Beta helicopter. Both aircraft landed safely and there were no injuries. The Beech pilot said he was turning base to final when he heard a thud and felt a bump, then noticed the helicopter at his 10 oclock position and just below. The helicopter pilot said he had heard the airplanes transmissions and thought the airplane was already on the ground. The helicopter pilot said he never saw the airplane before it came right over the top of the helicopter.