Author Topic: RS-25 testing at Stennis for SLS - UPDATES  (Read 155188 times)

Offline PM3

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Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #400 on: 02/28/2019 07:58 pm »
Webcast & engine chilling have started ...

this time with Audio  :D

http://www.ustream.tv/channel/nasa-media-channel
« Last Edit: 02/28/2019 08:10 pm by PM3 »
"Never, never be afraid of the truth." -- Jim Bridenstine

Offline Mapperuo

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Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #401 on: 02/28/2019 08:21 pm »
- Aaron

Offline eeergo

Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #402 on: 04/04/2019 08:56 am »
-DaviD-

Offline catdlr

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Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #403 on: 04/05/2019 02:53 am »
NASA Achieves Testing Milestone with Engines for Initial SLS Missions

NASA Stennis
Published on Apr 4, 2019

NASA conducted a hot fire test of RS-25 flight engine No. 2062 on the A-1 Test Stand at Stennis Space Center on April 4, with a full-duration of 500 seconds. The hot fire caps more than four years of testing for engines that will help power the first four missions of NASA’s new Space Launch System (SLS) rocket. All 16 former space shuttle main engines that will help launch the first four SLS missions have undergone acceptance testing and have completed developmental and acceptance testing for new controllers to be used by the engines. It also concludes a 51-month test series that demonstrated RS-25 engines can perform at the higher power level needed to launch the super heavy-lift SLS rocket.




« Last Edit: 04/05/2019 02:57 am by catdlr »
Tony De La Rosa

Offline eeergo

Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #404 on: 04/09/2019 01:19 pm »
NASA Achieves Testing Milestone with Engines for Initial SLS Missions

NASA conducted a hot fire test of RS-25 flight engine No. 2062 on the A-1 Test Stand at Stennis Space Center on April 4, with a full-duration of 500 seconds. The hot fire caps more than four years of testing for engines that will help power the first four missions of NASA’s new Space Launch System (SLS) rocket. All 16 former space shuttle main engines that will help launch the first four SLS missions have undergone acceptance testing and have completed developmental and acceptance testing for new controllers to be used by the engines. It also concludes a 51-month test series that demonstrated RS-25 engines can perform at the higher power level needed to launch the super heavy-lift SLS rocket.

Does this mean the Retrofit 1b test series is complete, and certification of the new HIP MCC, HPFTP and POGO accumulators is now complete (along with the certification of the ECUs for the first four SLS flights)?

If so, the next RS-25 testing we can expect is within the Retrofit 2 series, to certify the flexible ducting?

How long is that program expected to last before Retrofit 3 is reached? I understand the deadline for finishing all Retrofit series and deliver a non-flight certification engine is the middle of next year, to have six new "production restart" engines delivered 3 years later.
-DaviD-

Offline mainengine

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Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #405 on: 01/29/2021 06:40 pm »
NASA conducted a hot fire RS-25 test on engine 0528 on Jan 28 for a full duration of 500 seconds.
https://www.nasa.gov/centers/stennis/news/releases/2021/NASA-Conducts-1st-Hot-Fire-of-New-RS-25-Engine-Test-Series

Offline Hog

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Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #406 on: 01/29/2021 08:34 pm »
NASA conducted a hot fire RS-25 test on engine 0528 on Jan 28 for a full duration of 500 seconds.
https://www.nasa.gov/centers/stennis/news/releases/2021/NASA-Conducts-1st-Hot-Fire-of-New-RS-25-Engine-Test-Series
That test is the first of seven scheduled runs of the Retrofit Engine-2 test series.

attached
1) older test schedule

Offline mainengine

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Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #407 on: 04/06/2021 06:41 pm »
next RS-25 engine test planned for today

Offline catdlr

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Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #408 on: 04/07/2021 03:13 am »
NASA Conducts 2nd RS-25 Test in Latest Developmental Series

NASA Stennis
Posted: April 06, 2021

Quote
NASA conducted a second RS-25 single-engine hot fire test on April 6 to support the development and production of engines to help power the agency’s Space Launch System (SLS) rocket on future missions to the Moon. The full-duration hot fire of more than eight minutes (500 seconds) was conducted on the A-1 Test Stand at Stennis. It is part of a scheduled seven-test series designed to provide valuable data for Aerojet Rocketdyne, as it begins production of new RS-25 engines for use after the first four SLS flights.

Tony De La Rosa

Offline AS_501

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Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #409 on: 04/07/2021 03:23 am »
BTW, now that the green run test is complete on the B-2 stand, does this mean the B-2 will bo mothballed?  Isn't B-2 reserved for full stage/multi-engine testing, of which there are none in the foreseeable future?  Thx
Launches attended:  Apollo 11, ASTP (@KSC, not Baikonur!), STS-41G, STS-125, EFT-1, Starlink G4-24, Artemis 1
Notable Spacecraft Observed:  Echo 1, Skylab/S-II, Salyuts 6&7, Mir Core/Complete, HST, ISS Zarya/Present, Columbia, Challenger, Discovery, Atlantis, Dragon Demo-2, Starlink G4-14 (8 hrs. post-launch), Tiangong

Offline ncb1397

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Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #410 on: 04/07/2021 03:29 am »
BTW, now that the green run test is complete on the B-2 stand, does this mean the B-2 will bo mothballed?  Isn't B-2 reserved for full stage/multi-engine testing, of which there are none in the foreseeable future?  Thx

...

Quote
Current/Scheduled Work:
Scheduled for SLS Core Stage in 2020
Scheduled for Exploration Upper Stage testing in future
https://www.nasa.gov/centers/stennis/etd/facilities/b-2.html

Offline eeergo

-DaviD-

Offline SciNews

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Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #412 on: 05/20/2021 09:11 pm »
New 500 seconds test

Online Vahe231991

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Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #413 on: 07/14/2021 10:59 pm »
An update regarding testing of the RS-25 is available here:
https://twitter.com/NASAStennis/status/1415355445846413318

Offline eeergo

Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #414 on: 07/15/2021 10:05 am »
Full duration (8 min) test reported. Recording from Facebook stream:

https://twitter.com/conexionspacial/status/1415463739835420679
-DaviD-

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Online FutureSpaceTourist

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Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #416 on: 10/02/2021 10:00 am »
https://twitter.com/artemis360_moon/status/1443884663852896259

Quote
NASA has completed the last of 7 RS-25 engine tests. Engines that will be used after the Artemis 4 mission! 🔥

Online AnalogMan

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Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #417 on: 10/31/2021 01:28 pm »
Major Artemis Engine Part Arrives at Stennis For Certification Testing

The first four Artemis missions will use NASA’s 16 upgraded RS-25 engines that previously powered space shuttle flights. For future flights on the Space Launch System (SLS), NASA and prime contractor Aerojet Rocketdyne are changing the way they build major parts for the RS-25. Engineers and technicians are fabricating some of these parts using advanced manufacturing techniques that increase reliability while reducing both the cost and and time to build the engine.

The first RS-25 powerhead produced by Aerojet Rocketdyne in over a decade arrived at NASA’s Stennis Space Center near Bay St. Louis, Mississippi on Oct. 25. Here, it will be installed to a flight certification engine built specifically for testing newly designed parts for the latest production RS-25 engine that will power SLS flights beyond Artemis IV.

The powerhead serves as the structural backbone to the RS-25. It houses three highly complex injectors that produce the combustion to power the engine and acts as a junction for several critical parts, including both high pressure pumps and the main combustion chamber.

https://www.flickr.com/photos/nasamarshall/51640673192/

Offline eeergo

-DaviD-

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Re: RS-25 testing at Stennis for SLS - UPDATES
« Reply #419 on: 01/20/2022 12:31 pm »
Retrofit 3 test from yesterday:

https://twitter.com/NASASpaceflight/status/1483937679326728194

NASA Conducts 1st RS-25 Engine Test of Year at Stennis Space Center

NASA conducted its first RS-25 engine hot fire test of the new year Jan. 19 on the Fred Haise Test Stand at Stennis Space Center near Bay St. Louis, Mississippi. The test was the second hot fire in the latest series that began in mid-December. Each test in the series is providing valuable operational data to NASA's lead contractor, Aerojet Rocketdyne, on a variety of new engine components manufactured with state-of-the-art fabrication techniques as the company begins production of new RS-25 engines. These engines will help power the agency's Space Launch System (SLS) rocket on future deep-space missions. During launch, four RS-25 engines will power the SLS, generating a combined 2 million pounds of thrust during ascent. The RS-25 engines for the first four SLS flights are upgraded space shuttle main engines and have completed certification testing. NASA will use the data from this test to enhance production of new RS-25 engines and components for use on subsequent SLS missions. The testing is part of NASA's and Aerojet Rocketdyne's effort to use advanced manufacturing methods to significantly reduce the cost and time needed to build new engines.

For the Jan. 19 test, engineers fired the RS-25 developmental engine at power levels ranging from 80 percent to 111 percent for a full duration of about eight-and-a-half minutes (500 seconds), the same amount of time the engines must fire to help propel SLS to orbit. New hardware tested on the engine includes valves, insulation, rigid and flex ducts, a high pressure fuel turbopump, a high pressure oxidizer turbopump, instrumentation, and a POGO accumulator manufactured using selective laser melting. SLS will be the world's most powerful rocket and the only one capable of sending the agency’s Orion spacecraft, astronauts, and supplies to the Moon in a single mission. Initial SLS missions will send Orion to the Moon as part of NASA's Artemis program, including the Artemis I uncrewed test flight this year that will pave the way for future flights with astronauts to explore the lunar surface and prepare for missions to Mars. Artemis missions also will land the first woman and first person of color on the lunar surface. SLS and Orion, along with the commercial human landing system and the Gateway outpost in orbit around the Moon, are NASA’s backbone for deep space exploration. RS-25 tests at Stennis are conducted by a combined team of NASA, Aerojet Rocketdyne, and Syncom Space Services operators. Syncom Space Services is the prime contractor for Stennis facilities and operations.
I publish information in Spanish about space and rockets.
https://twitter.com/conexionspacial

 

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