A man has been flown to hospital after he was hit by the remote-controlled helicopter he was flying at Berry.

Authorities have described Thursday morning's incident, which saw part of the aircraft's rotor blade become lodged above his eye, as a "freak accident".

Part of the remote-controlled helicopter's rotor blade became lodged above the man's eye. Credit:Adam Wright

Emergency services were called to Camp Quality Park, off Woodhill Mountain Road, just before 11.30am.

Police say the 35-year-old Culburra man behind the controls was an experienced user of the helicopter and it was not yet known what caused the accident.