Franky Zapata, a 40-year-old inventor, takes to the air in Sangatte, France, at the start of his attempt to cross the Channel aboard his flyboard on Sunday. Photo: IC

A Frenchman who has spent years developing a jet-powered hoverboard zoomed across the English Channel on Sunday after a first attempt last month was cut short when he fell into the water while trying to refuel.

Franky Zapata set off on his "flyboard" from Sangatte on the northern coast of France for the 20-minute trip to St. Margaret's Bay in Dover, on England's south coast.

Escorted by three helicopters, Zapata glided across the water in the early morning light and landed in the picturesque bay, where dozens of onlookers and journalists awaited him.

The five turbines on the former jet-ski champion's craft propel him at speeds of up to 190 kilometers an hour, powered by a backpack full of kerosene that can keep him airborne for around 10 minutes.

He had planned to make the 35-kilometer crossing in 20 minutes, keeping an average speed of 140 kilometers an hour at a height of 15-20 meters above the water.

Zapata tumbled into the middle of the busy shipping lane on July 25 after failing to land on a boat waiting in English waters to give him a fresh pack of kerosene.

"The trickiest part is really the refueling," the 40-year-old Zapata said Thursday. "I didn't let up on the gas at the right moment.

"Aviation is the result of people who have had failures, and it's by getting back up that we move forward."

This time the refueling boat was bigger and had a larger landing area, and French navy vessels in the area kept an eye out in case of trouble.

French maritime authorities gave Zapata's team permission to keep the refueling boat in French waters, something they had refused the first time around citing safety concerns.

Zapata has been developing his hoverboard for the past three years, despite losing two fingers during its maiden flight in his garage near Marseille, when they got sucked into the turbines.

He already holds the Guinness World Record for the farthest hoverboard flight, a 2.2-kilometer trip over the Mediterranean Sea in April 2016.

No Guinness adjudicator was on hand for the latest Channel attempt, though a spokeswoman said he could still be awarded a new record if the trip meets its guidelines.

Zapata burst into the spotlight at this year's July 14 Bastille Day military parade in Paris, where he and his craft soared noisily above a crowd of stunned onlookers that included French President Emmanuel Macron.

His device has also captured the attention of the French military, which in December gave Zapata's company, Z-AIR, a 1.3 million euro ($1.4 million) development grant.