LOS
ANGELES (AFP) – Austrian daredevil Felix Baumgartner lifted off from the New
Mexico desert on Sunday in his second attempt to make a record-breaking jump
from the edge of space.
Baumgartner
was being transported up to 23 miles (37 kilometers) above the Earth by an
enormous balloon, before launching himself into the void, aiming to become the
first human to break the sound barrier in freefall.
The
capsule rose into the clear blue sky, with organizers holding their breath for
the first few thousand feet of ascent, as Baumgartner would not have had enough
time to escape had there been a problem.
Some
20 minutes into flight the balloon — whose progress was streamed live by
cameras on the ground and around the capsule itself — was rising at over 1,000
feet per minute, according to mission control.
Baumgartner’s
100-strong backup team includes retired US Air Force colonel Joe Kittinger, who
holds one of the records he is trying to break: the highest freefall jump,
which he made from 102,800 feet (31,333 meters) in 1960.
Kittinger
could be heard talking by radio with Baumgartner, telling him his ascending
speed and all other parameters were perfect. ‘You’re right on the button,
Felix,” he said.
“Roger
Roger Roger, Jawohl,” he said, using military communications jargon and the
Austrian’s native tongue, while mission controller Mike Jacobs said “All
systems are green and go.”
The
balloon was expected to reach jump height in about two hours, Jacobs added. If
all goes well, the descent was to take about 15 to 20 minutes — five minutes or
so in freefall, and 10 to 15 floating down with his parachute.
It
was the second effort by the 43-year-old skydiver, following an initial bid
last week that was aborted at the last minute due to winds.
The
giant balloon — which holds 30 million cubic feet of helium — is needed to
carry the Red Bull Stratos capsule, which weighs nearly 1.3 tons, to the
stratosphere.
It
is made of near transparent polyethylene strips about the same thickness as a
dry cleaner bag, which are heat-sealed together. Very thin material is
necessary to save weight.
The
biggest risk Baumgartner faces is spinning out of control, which could exert G
forces and make him lose consciousness. A controlled dive from the capsule is
essential, putting him in a head-down position to increase speed.
More
worrying is the prospect that the skydiver’s blood could boil if there were the
slightest tear or crack in his pressurized spacesuit-like outfit, due to
instant depressurization at extreme altitude.
Temperatures
of 90 degrees below zero Fahrenheit (minus 68 Celsius) could also have
unpredictable consequences if his suit somehow fails.
The
entire attempt was being beamed live by broadcasters around the world, and
online — although with a 20-second delay in case something goes wrong, so that
organizers can cut the feed.
“If
there is a mishap, Mission Control is on it and would absolutely cut the feed,”
spokeswoman Sarah Anderson told AFP.
Baumgartner
aims to break at least three records: the highest freefall leap, the fastest
speed ever achieved by a human, and the first person to break the sound barrier
of around 690 miles (1,110 kilometers) per hour in freefall.
The
Austrian has been training for five years for the jump. He holds several
previous records, notably with spectacular base jumps from the Petronas Towers
in Kuala Lumpur and the Christ the Redeemer statue in Rio de Janeiro, Brazil.
Speaking
before the launch, Baumgartner said he would be proud to be the first person to
break the speed of sound in freefall.
“But
really, I know that part of this entire experience will help make the next
pressure suit safer for space tourists and aviators,” the jumper pointed out.
Sunday’s
launch coincides with the 65th anniversary of American pilot Chuck Yaeger
breaking the speed of sound.
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