Space

January 17, 2014

NASA tests Orion spacecraft parachute jettison over Arizona

Engineers testing the parachute system for NASA’s Orion spacecraft increased the complexity of their tests Jan. 16, adding the jettison of hardware designed to keep the capsule safe during flight.

The test was the first to give engineers in-air data on the performance of the system that jettisons Orion’s forward bay cover. The cover is a shell that fits over Orion’s crew module to protect the spacecraft during launch, orbital flight and re-entry into Earth’s atmosphere. When Orion returns from space, the cover must come off before the spacecraft’s parachutes can deploy. It must be jettisoned high above the ground in order for the parachutes to unfurl.

“This was a tough one,” said Mark Geyer, Orion program manager. “We’d done our homework, of course, but there were elements here that could only be tested in the air, with the entire system working together. It’s one of the most complicated tests that we’ll do, so we were all excited to see it work just as it was meant to.”

Previous parachute tests at the U.S. Army’s Yuma Proving Grounds in Arizona tested the performance of the parachutes in various conditions without a forward bay cover. Adding the cover and its jettison, along with the deployment of three additional parachutes to pull the cover away from the crew module and lower it to the ground, added a level of complexity to the testing.

“The parachute deployment and forward bay cover jettisons are two of the most difficult things for us to model on computers,” said Chris Johnson, project manager for the parachutes. “That’s why we test them so extensively. These systems have to work for Orion to make it safely to the ground, and every bit of data we can gather in tests like these helps us improve our models and gives us more confidence that when we do it for real, we can count on them.”

The forward bay cover is jettisoned using a thruster separation system built by Systima Technologies Inc. of Bothell, Wash. Lockheed Martin, prime contractor for Orion, tested the system for the first time on the ground in December. Two more ground tests will simulate different types of stresses on the cover, such as a potential parachute failure or loads on the spacecraft. NASA also plans a second airborne test with the forward bay cover to evaluate its performance with a failed parachute.

Orion will be put to its first test in space during its first mission, Exploration Flight Test-1(EFT-1), in September. EFT-1 will have an uncrewed Orion launch to an orbit 3,600 miles above Earth, well beyond the distance traveled by spacecraft built for humans in more than 40 years. After circling Earth twice, Orion will re-enter the atmosphere at speeds as fast as 20,000 mph before the parachute system slows it down for a splashdown in the Pacific Ocean.

For information about Orion and EFT-1, visit:  http://www.nasa.gov/orion.




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


 
 

 

Headlines October 22, 2014

News: Northrop challenges 3DELRR contract award - Northrop Grumman has formally issued a protest against the US Air Force’s decision to award its next-generation ground based radar to competitor Raytheon.   Business: Defense firms prefer GOP, but spread campaign cash between political parties - For every campaign contribution from a major arms manufacturer to a Republican candidate...
 
 

News Briefs October 22, 2014

Military converges on scene of Kansas jet crash Military personnel are investigating at the site in southeast Kansas where an Oklahoma Air National Guard fighter jet crashed after a midair collision with another one during a training exercise. The F-16 crashed Oct. 20 in a pasture about three miles northeast of Moline, an Elk County...
 
 
Courtesy photograph

Upgrades ‘new normal’ for armor in uncertain budget environment

Courtesy photograph The current Paladin is severely under-powered and overweight so its speed of cross-country mobility is pretty restricted. The Paladin Integrated Management program is designed to address a number of these we...
 

 

ISR: A critical capability for 21st century warfare

The progressive adaptations and breakthroughs made in the intelligence, surveillance and reconnaissance arena have changed the way wars are fought, and the way commanders think about the battlespace. “Whether we have airmen exploiting full motion video data or serving downrange in the (Central Command) area of responsibility, these individuals make up an enterprise of 30,000...
 
 

Lockheed Martin teams with Roketsan of Turkey on new standoff missile for F-35

Roketsan and Lockheed Martin signed a teaming agreement Oct. 22 for collaboration on the SOM-J, a new generation air-to-surface Standoff Cruise Missile for the F-35 Lightning II. The SOM system is an autonomous, long-range, low-observable, all-weather, precision air-to-surface cruise missile. The SOM-J variant is tailored for internal carriage on the F-35 aircraft. The companies will...
 
 

Army Operating Concept expands definition of combined arms

The Army Operating Concept, published Oct. 7, expands the idea of joint combined-arms operations to include intergovernmental and special operations capabilities, said Gen. Herbert R. McMaster Jr. The new concept includes prevention and shaping operations at the strategic level across domains that include maritime, air, space and cyberspace, he said. It’s a “shift in emphasis,”...
 




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>