Two Northern Ireland pilots will attempt to set a new record on Sunday by flying the circumference of Ireland in a four-seater light aircraft.
Mr Adrian Maginnis and Mr Colin Fullerton will take off from Newtonards Flying club in Co Down on Sunday to raise funds for the NSPCC and the ISPCC.
The two pilots will land at 20 airfields to refuel.
Flying time will be between 5½ and 6½ hours, but grounding time will affect the total duration.
Mr Maginnis came up with this idea having just qualified with his basic private pilot's licence.
This means he can't fly in certain weather so Mr Fullerton, a qualified instructor and commercial airline pilot, will be accompany him on the flight.
Although flying isn't Mr Maginnis's preferred mode of transport, he feels there is an advantage to flying. It costs the same to own and run a second-hand car as a small aircraft. "More and more people are flying around Ireland and to France because if you're busy, scheduled airlines don't always suit," he told The Irish Times.
"This has never been attempted," said Mr Maginnis. "That's kind of scary. We hope maybe Guinness [Book of Records] will acknowledge it."