Space

May 1, 2013

Success continues as NASA’s Orion parachute tests get more difficult

A test version of NASA’s Orion spacecraft safely landed during a simulation of two types of parachute failures May 1.

In the test, conducted in Yuma, Ariz., the mock capsule was traveling about 250 mph when the parachutes were deployed. That is the highest speed the craft has experienced as part of the test series designed to certify Orion’s parachute system for carrying humans.

Engineers rigged one of the test capsule’s two drogue parachutes not to deploy and one of its three main parachutes to skip its first stage of inflation after being extracted from a plane 25,000 feet above the Arizona desert. Drogue parachutes are used to slow and reorient Orion while the main parachutes inflate in three stages to gradually slow the capsule further as it descends.

The failure scenario, one of the most difficult simulated so far, will provide data engineers need for human rating the parachute system.

“The tests continue to become more challenging, and the parachute system is proving the design’s redundancy and reliability,” said Chris Johnson, NASA’s project manager for the Orion parachute assembly system. “Testing helps us gain confidence and balance risk to ensure the safety of our crew.”

Orion has the largest parachute system ever built for a human-rated spacecraft. The canopies of the three main parachutes can cover almost an entire football field. After reentering Earth’s atmosphere, astronauts will use the parachutes to slow the spacecraft for a splashdown in the Pacific Ocean.

Testing irregularities allows engineers to verify the parachutes are reliable even when something goes wrong. The tests provide information to refine models used to build the system and Orion. Changes to the design and materials used in Orion’s parachute system already have been made based on previous tests. Other government or commercial spacecraft using a similar parachute system also can benefit from the work done to validate Orion.

“Parachute deployment is inherently chaotic and not easily predictable,” said Stu McClung, Orion’s landing and recovery system manager. “Gravity never takes any time off – there’s no timeout. The end result can be very unforgiving. That’s why we test. If we have problems with the system, we want to know about them now.”

Orion’s next Earth-based parachute test is scheduled for July, when the test capsule will be released from 35,000 feet, a higher altitude than ever before. The first test of the parachutes after traveling in space will be during Exploration Flight Test-1 in 2014, when an uncrewed Orion will be return from 3,600 miles above Earth’s surface. The spacecraft will be traveling at about 340 mph when the parachutes deploy.

 




All of this week's top headlines to your email every Friday.


 
 

 
nasa-commercial-crew

Commercial Crew milestones met; partners on track for 2017 missions

NASA has taken another step toward returning America’s ability to launch crew missions to the International Space Station from the United States in 2017. The Commercial Crew Program ordered its first crew rotation mission fro...
 
 
boeing-space

Boeing awarded first-ever commercial human spaceflight mission

NASA issued a task order as part of Boeing’s $4.2 billion Commercial Crew Transportation Capability contract recently to include the company’s first-ever service flight to the International Space Station. The award ...
 
 
Photograph courtesy of NASA/JPL-Caltech

NASA’s Europa mission begins with selection of science instruments

Photograph courtesy of NASA/JPL-Caltech Bizarre features on Europa’s icy surface suggest a warm interior. This view of the surface of Jupiter’s moon Europa was obtained by NASA’s Galileo mission, and shows a color...
 

 
Photograph courtesy of NASA/JPL-Caltech/Lockheed Martin

NASA begins testing Mars lander in preparation for next mission to Red Planet

Photograph courtesy of NASA/JPL-Caltech/Lockheed Martin Engineers and technicians at Lockheed Martin Space Systems, Denver, run a test of deploying the solar arrays on NASA’s InSight lander. Photo taken April 30, 2015. Te...
 
 
Image courtesy of NASA/JPL-Caltech

NASA’s WISE spacecraft discovers most luminous galaxy in universe

Image courtesy of NASA/JPL-Caltech This artist’s concept depicts the current record holder for the most luminous galaxy in the universe. The galaxy, WISE J224607.57-052635.0, is erupting with light equal to more than 300 ...
 
 

Air Force launches hush-hush mini-shuttle into space

A mysterious space plane rocketed into orbit May 20, carrying no crew but a full load of technology experiments. The Air Force launched its unmanned mini-shuttle late morning, May 20. An Atlas V rocket lifted it up and out over the Atlantic. This is the fourth flight for the military research program, which is shrouded...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>