Driver who broke the sound barrier attempts another land speed record in Utah

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WENDOVER, Utah -- The archetypal — and lone — idiosyncratic to interruption the dependable obstruction successful a car hits the way successful Utah this week with caller wheels and his oculus connected different record.

Twenty years ago, British operator Andy Green acceptable the onshore velocity grounds for a diesel-powered car, reaching 350.092 mph (563.4 kph) astatine Utah’s celebrated Bonneville Salt Flats. Green volition instrumentality to the lunarlike scenery Tuesday and effort to bushed that mark, this clip with a hydrogen-powered car.

The retired Royal Air Force combatant aviator aims not lone to triumph different accolade but to showcase the powerfulness of hydrogen arsenic a clean-energy alternative. It's the “fuel of the future,” Green told The Associated Press successful a July interview.

Green volition beryllium driving the 32-foot (9.75-meter) JCB Hydromax, the brainchild of British operation instrumentality shaper JCB. The car is agleam yellow, agelong and slim, resembling a pencil. It's powered by 2 hydrogen interior combustion engines with a combined 1,600 horsepower, which were adapted from engines utilized successful the company’s operation machinery. They premix pressurized hydrogen state with aerial and ignite it to make bursts of power.

In targeting the diesel-powered record, Green besides hopes to easy wide the satellite onshore velocity records for hydrogen interior combustion engines (185.5 mph/298.5 kph) and electrical vehicles (341.3 mph/549.2 kph).

Green deed a caller apical velocity of 368.347 mph (592.797 kph) successful signifier past week, but to officially gain the hydrogen record, he’ll person to bash it Tuesday successful beforehand of the Fédération Internationale de l’Automobile, the planetary governing assemblage of centrifugal sports.

“What the highest velocity is, I can’t say. We conscionable don’t know,” helium said. “Part of the escapade present is we’re going to find out.”

One happening Tuesday’s effort volition assuredly not bash is attack the supersonic speeds Green reached with pitchy powerfulness 3 decades ago.

Green had already been flying supersonic subject craft erstwhile helium spotted a paper advertisement that read: “Wanted: High-speed operator to interruption the dependable barrier,” according to the Guinness World Records. In 1997, helium traveled faster than the velocity of dependable and acceptable the outright onshore velocity grounds — 763.035 mph (1,227.98 kph) — successful a car powered by duplicate pitchy engines. His runs successful Nevada’s Black Rock Desert produced sonic booms that shook the adjacent municipality of Gerlach.

Now 64 years old, Green said helium thought helium was done racing but came retired of status erstwhile JCB approached him with plans for the caller car. The institution has invested much than $134 cardinal into hydrogen-powered engines that it says emit nary c dioxide from the tailpipes.

“If you’re superior astir emissions, you person to beryllium superior astir hydrogen, and a onshore velocity task is the cleanable mode to beryllium it,” JCB Chair Anthony Bamford said astatine the car's unveiling successful May. Bamford has besides argued that hydrogen tin amended grip the demands of dense industries than electrical power.

But hydrogen is lone arsenic cleanable arsenic its source, and the immense bulk is presently produced from fossil fuels. JCB signed a woody to bargain greenish hydrogen, which is created utilizing renewable vigor but makes up a tiny fraction of planetary hydrogen production.

Hydrogen combustion engines besides contiguous unsocial information challenges owed to the precocious unit and flammability of the gas.

“We're managing the risks precise carefully,” Green said. The car endured rigorous testing, and Green said helium spent months learning however it responds to the elements, however the engines enactment successful tandem and however to deploy a parachute to dilatory the car connected the low-friction brackish crust.

Since the archetypal contention determination successful 1914, the glassy aboveground of the Bonneville Salt Flats has drawn generations of drivers seeking to acceptable caller onshore velocity records. A remnant of a prehistoric water bed, the brackish flats are astir 100 miles (160 kilometers) westbound of Salt Lake City and beryllium atop an aquifer that cools the tires of the cars.

Spectators indispensable basal astir a 4th of a mile (400 meters) from the course's straightaway, which is 10 miles (16 kilometers) long, and often ticker done wide-angle binoculars.

The expanse connected the borderline of Utah and Nevada has besides been a backdrop for movies including “Independence Day” and “The World’s Fastest Indian,” and the bid finale of “Mad Men.”

Green volition commencement astir an hr earlier sunrise Tuesday. His effort comes a twelvemonth aft a operator going 283 mph (455 kph) died trying to acceptable a onshore velocity grounds astatine Bonneville's yearly Speed Week. Chris Raschke mislaid power of his rocketlike conveyance called the Speed Demon past August and died from his injuries.

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Rico reported from Atlanta. Video writer Serge Cartwright contributed reporting.

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