Trent J Perrotto
Headquarters, Washington
202-358-0321
trent.j.perrotto@nasa.gov
Josh Byerly
Johnson Space Center, Houston
281-483-5111
josh.byerly@nasa.gov
HOUSTON -- NASA completed another
successful test Wednesday of the Orion crew vehicle's parachutes high above the
Arizona desert in preparation for the spacecraft’s orbital flight test in 2014.
Orion will carry astronauts deeper into space than ever before, provide
emergency abort capability, sustain the crew during space travel and ensure a
safe re-entry and landing.
A C-17 plane dropped a test version of
Orion from an altitude of 25,000 feet above the U.S. Army Yuma Proving Ground
in southwestern Arizona. This test was the second to use an Orion craft that
mimics the full size and shape of the spacecraft.
Orion's drogue chutes were deployed
between 15,000 feet and 20,000 feet, followed by the pilot parachutes, which
deployed the main landing parachutes. Orion descended about 25 feet per second,
well below its maximum designed touchdown speed, when it landed on the desert
floor.
"Across the country, NASA and
industry are moving forward on the most advanced spacecraft ever designed,
conducting drop and splashdown tests, preparing ground systems, designing
software and computers and paving the way for the future of exploration,"
said William Gerstenmaier, associate administrator for the Human Exploration
and Operations Mission Directorate at NASA Headquarters in Washington.
"Today's parachute test in Yuma is an important reminder of the progress
being made on Orion and its ultimate mission -- enabling NASA to meet the goal
of sending humans to an asteroid and Mars."
Orion parachutes have so-called reefing
lines, which when cut by a pyrotechnic device, allow the parachute to open
gradually, managing the initial amount of drag and force on the parachute. The
main objective of the latest drop test was to determine how the entire system
would respond if one of the reefing lines was cut prematurely, causing the
three main parachutes to inflate too quickly.
Since 2007, the Orion program has
conducted a vigorous parachute air and ground test program and provided the
chutes for NASA's successful pad abort test in 2010. All of the tests build an
understanding of the chutes' technical performance for eventual human-rated
certification.
In 2014, an uncrewed Orion spacecraft
will launch from Cape Canaveral Air Force Station in Florida on Exploration
Flight Test-1. The spacecraft will travel 3,600 miles above Earth's surface.
This is 15 times farther than the International Space Station's orbit and
farther than any spacecraft designed to carry humans has gone in more than 40
years. The main flight objective is to understand Orion's heat shield
performance at speeds generated during a return from deep space.
In 2017, Orion will be launched by NASA's
Space Launch System (SLS), a heavy-lift rocket that will provide an entirely
new capability for human exploration beyond low Earth orbit. Designed to be
flexible for launching spacecraft for crew and cargo missions, SLS will enable
new missions of exploration and expand human presence across the solar system.
For more information about Orion and for
video and images of Wednesday's test, visit http://www.nasa.gov/orion.
- end -
No comments:
Post a Comment