Ananova:

A New Zealand adventurer is planning to bungee jump 4,920ft from a helicopter.

A J Hackett, 48, who pioneered bungee jumping, will make the jump over Kuala Lumpur, Malaysia, later this year.

If successful, it will double the existing record for the world's highest bungee jump.

"I do get a bit scared sometimes but I'm still able to split the emotion from the logic," he told ABC radio in Australia.

The venture has been enabled by breakthroughs in bungee cord technology.

"Last December we opened the world's highest bungee site in Macau," said Mr Hackett.

"There we developed this new technology which is a tapered bungee cord, fatter at the top than it is at the bottom. It means you can stretch them a long, long way.

"With standard cords that you have today you just can't do that because they break. They just get stretched too much at the top."

Hackett achieved fame when he bungee jumped off the Eiffel Tower in 1986.

He says the extreme sport appeals to the "little bit of anarchy" in people, adding: "People need to get out of their comfort zones to actually expand themselves."