Skydiver begins daring bid to break sound barrier

ROSWELL, N.M. (AP) ? Lifted by a massive balloon, extreme athlete Felix Baumgartner ascended high above Earth on Sunday in his bid to complete a death-defying 23-mile free fall that could make him the first skydiver to break the sound barrier.

Baumgartner took off in a pressurized capsule carried by a 55-story ultra-thin helium balloon that is expected to ascend high above the New Mexico desert for nearly three hours. If plans go as expected, Baumgartner, in a high-tech suit, will then jump into a near vacuum with no oxygen to begin what is expected to be the fastest, farthest free fall from the highest-ever manned balloon.

Any contact with the capsule on his exit could tear the pressurized suit, a rip that could expose him to a lack of oxygen and temperatures as low as minus 70 degrees. That could cause potentially lethal bubbles to form in his bodily fluids

Coincidentally, Baumgartner's attempted feat also marked the 65th anniversary of U.S. test pilot Chuck Yeager successful attempt to become the first man to officially break the sound barrier aboard an airplane.

At Baumgartner's insistence, some 30 cameras recorded the event Sunday. While it had been pegged as a live broadcast, it was actually under a 20-second delay.

Shortly after launch, screens at mission control showed the capsule as it rose above 10,000 feet, high above the New Mexico desert as cheers erupted from organizers. Baumgartner also could be seen on video checking instruments inside the capsule.

Baumgartner's team included Joe Kittinger, who first attempted to break the sound barrier from 19.5 miles up in 1960. With Kittinger inside mission control Sunday, the two men could be heard going over technical details as the launch began.

"You are right on the button, keep it right there," Kittinger told Baumgartner.

An hour into the flight, Baumgartner had ascended more than 63,000 feet and had gone through a trial run of the jump sequence that will send him plummeting toward Earth. Ballast was dropped to speed up the ascent.

Kittinger told him, "Everything is in the green. Doing great."

By 11:15 a.m. MDT, he had reached more than 100,000 feet above Earth. Organizers earlier had estimated the jump to occur at roughly 12:30 p.m., though that timing was tentative.

If he succeeds in the death-defying feat, the man nicknamed "Fearless Felix" will break the 52-year-old altitude record by Kittinger, who reached a speed of 614 mph, just under the sound barrier.

This attempt also will be the end of a five-year road for Baumgartner, a record-setting high-altitude jumper. He already made two preparation jumps in the area, one in March from 15 miles high and on in July from 18 miles high. It will also be the end of his extreme altitude jumping career; he has promised this will be his final jump.

Dr. Jonathan Clark, Baumgartner's medical director, has told reporters he expects the pressurized spacesuit to protect him from the shock waves of breaking the sound barrier. If all goes well and he survives the jump, NASA could certify a new generation of spacesuits for protecting astronauts and provide an escape option from spacecraft at 120,000 feet, he said.

Jumping from more than three times the height of the average cruising altitude for jetliners, Baumgartner's expects to hit a speed of 690 mph or more before he activates his parachute at 9,500 feet above sea level, or about 5,000 feet above the ground in southeastern New Mexico. The total jump should take about 10 minutes.

The energy drink maker Red Bull, which is sponsoring the feat, has been promoting a live Internet stream of the event from nearly 30 cameras on the capsule, the ground and a helicopter. But organizers said there will be a 20-second delay in their broadcast of footage in case of a tragic accident.

After the jump, Baumgartner says he plans to settle down with his girlfriend and fly helicopters on mountain rescue and firefighting missions in the U.S. and Austria.

Source: http://news.yahoo.com/skydiver-begins-daring-bid-break-sound-barrier-160030476.html

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