23 May 2012 Last updated at 08:43 GMT Gary Connery's flight will take about 50 seconds A stuntman is to leap from a helicopter at a height of 2,400ft (730m) and land without using a parachute.
Gary Connery, from Henley-on-Thames, Oxfordshire, will attempt the stunt at 13:00 BST on Wednesday wearing a specially developed wingsuit.
The 42-year-old will make the jump above Ridge Wood in Buckinghamshire and land in an area containing 18,600 cardboard boxes.
Gary Connery, from Henley-on-Thames, Oxfordshire, will attempt the stunt at 13:00 BST on Wednesday wearing a specially developed wingsuit.
The 42-year-old will make the jump above Ridge Wood in Buckinghamshire and land in an area containing 18,600 cardboard boxes.
