Author Topic: RS-25 testing at Stennis for SLS - UPDATES  (Read 196358 times)

Online Chris Bergin

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Online Chris Bergin

Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #241 on: 07/25/2017 07:19 pm »
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Online Chris Bergin

Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #242 on: 07/25/2017 07:29 pm »
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Online Chris Bergin

Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #243 on: 07/25/2017 07:30 pm »
15 minute notice, so on track for 45 mins past the hour.
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Online Chris Bergin

Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #244 on: 07/25/2017 07:47 pm »
IGNITION!
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Online Chris Bergin

Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #245 on: 07/25/2017 07:54 pm »
This test seems way over 500 seconds! :o
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Online Chris Bergin

Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #246 on: 07/25/2017 07:55 pm »
Shutdown!
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Online catdlr

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Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #247 on: 07/26/2017 05:09 am »
Testing a new engine controller system for the RS-25

NASA Stennis
Published on Jul 25, 2017


Engineers conduct the third in a series of RS-25 flight controller tests on July 25, 2017, for NASA’s Space Launch System (SLS) rocket. The more than 8 1/2 minute test on the A-1 Test Stand at NASA’s Stennis Space Center in Mississippi signaled another step toward the launch of NASA’s new Space Launch System (SLS). The SLS rocket, powered by four RS-25 engines, along with the Orion spacecraft will take astronauts in a new era of exploration beyond Earth’s orbit into deep space.





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Online Chris Bergin

Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #248 on: 08/09/2017 01:57 pm »
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Offline john smith 19

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Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #249 on: 08/09/2017 03:58 pm »
Article for another test today!

By Philip Sloss:
https://www.nasaspaceflight.com/2017/08/rs-25-another-controller-test-sls/
A nice article but I'd like to see some details on what's actually inside these controllers.

The first generation units were built round a 16 bit processor for combat aircraft and plated wire memory of about 16KB.

The 2nd used twin Motorola 68000s but running on the same die due to problems with getting them to run in synchronization (AFAIK this was made on special order to NASA by Motorola)

So what's in this box? Power PC? ARM? SPARC? The first is available in rad hard space rated, the other two can be had as IP for inclusion to your own rad hard process or gate array or ASIC.
MCT ITS BFR SS. The worlds first Methane fueled FFSC engined CFRP SS structure A380 sized aerospaceplane tail sitter capable of Earth & Mars atmospheric flight.First flight to Mars by end of 2022 TBC. T&C apply. Trust nothing. Run your own #s "Extraordinary claims require extraordinary proof" R. Simberg."Competitve" means cheaper ¬cheap SCramjet proposed 1956. First +ve thrust 2004. US R&D spend to date > $10Bn. #deployed designs. Zero.

Online Chris Bergin

Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #250 on: 08/09/2017 07:58 pm »
« Last Edit: 08/09/2017 08:02 pm by Chris Bergin »
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Online DaveS

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Online Chris Bergin

Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #252 on: 08/09/2017 08:02 pm »
FIRING!
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Online Chris Bergin

Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #253 on: 08/09/2017 08:07 pm »
Test stand venting.
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Offline Stardust9906

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Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #254 on: 08/09/2017 08:10 pm »
Edit
« Last Edit: 08/09/2017 08:12 pm by Stardust9906 »

Online Chris Bergin

Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #255 on: 08/09/2017 08:11 pm »
Shutdown!
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Offline Rocket Science

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Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #256 on: 08/09/2017 08:50 pm »
Looked good from here, thanks for the great article Philip! :)
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Online catdlr

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Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #257 on: 08/10/2017 03:38 am »
RS-25 Rocket Engine Test

NASA
Published on Aug 9, 2017


The 8.5-minute test conducted at NASA’s Stennis Space Center is part of a series of tests designed to put the upgraded former space shuttle engines through the rigorous temperature and pressure conditions they will experience during a launch. The tests also support the development of a new controller, or “brain,” for the engine, which monitors engine status and communicates between the rocket and the engine, relaying commands to the engine and transmitting data back to the rocket.

This video is available for download from NASA's Image and Video Library: https://goo.gl/1mNM3c



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Online Chris Bergin

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Online DaveS

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Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #259 on: 08/30/2017 07:13 pm »
Another test today:
https://twitter.com/NASA_Marshall/status/902946559385534464
And NASA TV will cover the test as well with the coverage starting at 4 pm EDT.
"For Sardines, space is no problem!"
-1996 Astronaut class slogan

"We're rolling in the wrong direction but for the right reasons"
-USA engineer about the rollback of Discovery prior to the STS-114 Return To Flight mission

 

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