Author Topic: Orion LAS motor test in Utah (Dec 13th, 11 am MST)  (Read 1084 times)

Online eeergo

Can't find a thread where this would fit, so just starting a new one. Do let me know if I overlooked something in order to merge them up.

Coming up in a little more than an hour, Orion LAS motor test in Promontory (livestreamed):


https://twitter.com/NASA_Orion/status/1073255286041915392
-DaviD-

Online eeergo

Re: Orion LAS motor test in Utah (Dec 13th, 11 am MST)
« Reply #1 on: 12/13/2018 04:17 pm »
First test a year and a half ago:

-DaviD-

Online eeergo

Re: Orion LAS motor test in Utah (Dec 13th, 11 am MST)
« Reply #2 on: 12/13/2018 04:55 pm »
Live
-DaviD-

Online eeergo

Re: Orion LAS motor test in Utah (Dec 13th, 11 am MST)
« Reply #3 on: 12/13/2018 04:55 pm »
T-5 minutes.

350000 pounds of thrust because it's a low temperature test. At nominal temperatures it's more like 400000.

Horrific FB stream, as most things in this social network lately. Only thing that works properly is the silly emoticons popping out incessantly. Not as terrible, but pretty bad, is the presenter, who just appears to be longing to go home, and mostly appears to pose questions a 10-year-old could answer.
« Last Edit: 12/13/2018 05:05 pm by eeergo »
-DaviD-

Online eeergo

Re: Orion LAS motor test in Utah (Dec 13th, 11 am MST)
« Reply #4 on: 12/13/2018 05:03 pm »
Nominal test!
-DaviD-

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Re: Orion LAS motor test in Utah (Dec 13th, 11 am MST)
« Reply #5 on: 12/13/2018 05:14 pm »
The test

Online catdlr

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Re: Orion LAS motor test in Utah (Dec 13th, 11 am MST)
« Reply #6 on: 12/14/2018 02:33 am »
Alternate views from the manufacturer:

Northrop Grumman Completes Second Qualification Test of Launch Abort Motor for Orion Spacecraft


Northrop Grumman
Published on Dec 13, 2018

Earlier today, we completed the second qualification test for the launch abort motor for NASA’s Orion Spacecraft. The motor fired for 5 seconds with a force of just under 370,000 pounds and will be used to pull the crewed capsule away from NASA's Space Launch System in the event of an emergency on the launch pad or during ascent. The next major milestone for the motor will be the Ascent Abort-2 Flight Test (AA-2) that will take place in 2019. Learn more about the motor here: bit.ly/2t2zvhY

https://www.youtube.com/watch?v=VTLSGYlinYY?t=001

« Last Edit: 12/14/2018 02:33 am by catdlr »
Tony De La Rosa

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Re: Orion LAS motor test in Utah (Dec 13th, 11 am MST)
« Reply #7 on: 12/20/2018 01:58 pm »
Motors Arrive for Flight Safety Test of Orion Launch Abort System

Bob Granath Posted on December 20, 2018

Launch Abort System, or LAS, motors are being assembled and checked out at NASA’s Kennedy Space Center in Florida for an upcoming test for the Orion spacecraft designed to send astronauts on trips to the Moon, and support human exploration to Mars.

Orion is designed to launch atop the agency’s Space Launch System (SLS) rocket that will take astronauts into deep space. Before flying astronauts, the Ascent Abort-2 (AA-2) flight test will help verify that the LAS can pull astronauts to safety in the event of a problem during launch. The crew escape system will be attached to the top of the spacecraft.

According to Carlos Garcia of Orion Production Operations at Kennedy there are three motors on the LAS- the abort, attitude control and jettison motors. The abort motor can propel the crew module away from the rocket in milliseconds should there be an issue with SLS on the pad or during launch. The attitude control motor would steer the spacecraft during the maneuver. The jettison motor will pull the LAS away from the crew module, allowing Orion’s parachutes to deploy with the spacecraft safely landing in the ocean.

The abort and jettison motors for the test arrived on Aug. 27 and Sept. 10, 2018 respectively, and the attitude control motor was delivered Dec. 15.

“As the motor segments come in, we align and mate them to the motor truss assembly,” Garcia said. “We’re working on the electrical connections now.”

All are being checked out and processed in the Launch Abort System Facility, or LASF, prior to final assembly.

“Once the LAS assembly and checkout are complete, we’ll do a soft mate to the Orion crew module mock-up,” Garcia said. “That test will help us make sure everything is working as intended.”

For AA-2, a test version of Orion equipped with 284 sensors will launch atop a booster provided by Northrop Grumman from Space Launch Complex (SLC) 46 at Cape Canaveral Air Force Station. The test booster is being processed in the space center’s Vehicle Assembly Building and later will be transported to SLC 46.

“After the LAS is mated to Orion, the combination will be moved to the Cape for mating to the booster,” Garcia said.

Targeted for May 2019, AA-2 will test an LAS abort under the highest aerodynamic loads it would experience in flight. The booster will accelerate to 31,000 feet, traveling at more than 1,000 miles an hour. The LAS abort motor then will ignite, pulling the crew module away from the booster.

The jettison motor separates the LAS from the crew module. The AA-2 test will conclude as data recorders are jettisoned for retrieval in the Atlantic Ocean.

https://blogs.nasa.gov/kennedy/2018/12/20/motors-arrive-for-flight-safety-test-of-orion-launch-abort-system/

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