Supersonic jump: Skydiver unfolds balloon

2012-10-09 17:47
Austrian Felix Baumgartner sits in his capsule during the preparations for the final manned flight of the Red Bull Stratos mission in Roswell, New Mexico. (Joerg Mitter/<a href= http://www.redbullstratos.com/live> http://www.redbullstrato.com/live</a

Austrian Felix Baumgartner sits in his capsule during the preparations for the final manned flight of the Red Bull Stratos mission in Roswell, New Mexico. (Joerg Mitter/ http://www.redbullstrato.com/live

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Roswell - A weather hold that threatened to cancel extreme athlete and skydiver Felix Baumgartner's death-defying, 37km freefall into the southeastern New Mexico desert was lifted on Tuesday morning and crews began laying out his balloon.

The planned early morning launch had been delayed by high winds. But just before 09:00 (15:00 GMT), the winds calmed and the team decided to proceed with plans to make the flight, a process that would take about two hours.

The 43-year-old former military parachutist from Austria plans to take off in a 55-storey, ultra-thin and easy-to-tear helium balloon that will take him into the stratosphere for the jump. He hopes it will make him the first skydiver to break the sound barrier and shatter three other world records.

Those plans were in question before sunrise, when winds at 214m above ground - the top of the balloon - were 32km/h, far above the 5km/h maximum for a safe launch, said mission meteorologist Don Day.

After sunrise, Day said there were indications the upper level winds might calm, so the team pushed the launch window from 10:00 to 11:30 (16:00-17:30 GMT), noon (18:00 GMT) at the latest.

The balloon had been scheduled to launch about 07:00 (13:00 GMT) from a field near the airport in a flat dusty town that until now has been best known for a rumored 1947 UFO landing.

If the mission goes, Baumgartner will make a nearly three-hour ascent to 36 576m, then take a bunny-style hop from a pressurized capsule into a near-vacuum where there is barely any oxygen to begin what is expected to be the fastest, farthest free fall from the highest-ever manned balloon.

Baumgartner spent Monday at his hotel, mentally preparing for the dangerous feat with his parents, girlfriend and four close friends, his team said. He had a light dinner of salmon and a salad and then had a massage. He spent Tuesday morning resting in an Airstream trailer near the launch site.

Among the risks: Any contact with the capsule on his exit could tear the pressurized suit. A rip could expose him to a lack of oxygen and temperatures as low as 70 degrees below zero. It could cause potentially lethal bubbles to form in his bodily fluids, a condition known as "boiling blood."

Questionable wind forecast

He could also spin out of control, causing other risky problems.

The energy drink maker Red Bull, which is sponsoring the feat, has been promoting a live internet stream of the event at http://www.redbullstratos.com/live 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.

Despite the dangers and questionable wind forecast, high performance director Andy Walshe said the team was excited, not nervous. Baumgartner has made two practice jumps, one from 24km in March and another from 29km in July.

"With these big moments, you get a kind of sense that the energy changes," he said on Monday. "It really is just kind of a heightened energy. It keeps you on your toes. It's not nervousness, it's excitement."

During the ascent, Walshe said, the team will have views from a number of cameras, including one focused directly on Baumgartner's face. Additionally, they will have data from life support and other systems that show things like whether he is getting enough oxygen.

The team also expects constant communication with Baumgartner, although former Air Force Captain Joe Kittinger, whose 1960 free-fall record from 31km Baumgartner hopes to break, is the only member of mission control who will be allowed to talk to him.

And while Baumgartner hopes to set four new world records, his free fall is more than just a stunt.

10 minutes

His dive from the stratosphere should provide scientists with valuable information for next-generation spacesuits and techniques that could help astronauts survive accidents.

Jumping from more than three times the height of the average cruising altitude for jetliners, Baumgartner's expects to hit a speed of 1 110km/h or more before he activates his parachute at 2 895m above sea level, or about 1 524m above the ground in southeastern New Mexico. The total jump should take about 10 minutes.

His medical director is Dr Jonathan Clark, a Nasa space shuttle crew surgeon who lost his wife, Laurel Clark, in the 2003 Columbia accident. No one knows what happens to a body when it breaks the sound barrier, Clark said.

"That is really the scientific essence of this mission," said Clark, who is dedicated to improving astronauts' chances of survival in a high-altitude disaster.

Clark told reporters on Monday he expects Baumgartner's 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 36 576m, he said.

Currently, spacesuits are certified to protect astronauts to 30 480m, the level Kittinger reached in 1960. Kittinger's speed of 988km/h was just shy of breaking the sound barrier at that altitude.

- AP
Read more on:    red bull  |  felix baumgartner  |  us  |  space  |  aviation
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