Posts Tagged ‘SSME’

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SLS engine testing delayed due to test stand contamination


The return of RS-25 engine testing at the Stennis Space Center has been delayed, following the discovery of a contamination issue involving cloth fibers inside the A-1 test…

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RS-25 engine installed for Stennis testing amid SLS schedule debate


The Stennis Space Center is just weeks away from returning to RS-25 engine testing, following the installation of Engine 0525 on the A-1 Test Stand. The milestone comes as…

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Pegasus Barge to begin renovations for SLS core shipping


NASA’s famous Pegasus Barge – best known for transporting External Tanks from the Michoud Assembly Facility (MAF) to the Kennedy Space Center (KSC) – is about to be…

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Four Shuttle veterans selected to drive SLS uphill on maiden flight


The four RS-25 engines selected for the debut launch of the Space Launch System (SLS) are veteran Space Shuttle Main Engines (SSME) with a rich history of successful…

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RS-25 Second Life: SLS Core Stage engine set for summer testing


The RS-25 – the engine that enjoyed a hugely successful career with the Space Shuttle fleet – is set to begin its new life with the Space Launch…

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SMAT fires up to open SLS acoustic testing


The Scale Model Acoustic Test (SMAT) – a mini-me version of the SLS – has fired up for the first time at the Marshall Space Flight Center (MSFC)….

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Stennis preparing to throttle up SLS engine testing


NASA’s Stennis Space Center is deep into preparations for numerous engine testing for the Space Launch System (SLS), ranging from the old, the new and the miniature. Continued…

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The engines that refused to retire – RS-25s prepare for SLS testing


Following a 30 year career with the Space Shuttle Program, Pratt & Whitney Rocketdyne’s RS-25 engines are now preparing for their next role, with the Space Launch System…

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SLS prepares for PDR – Evolution eyes Dual-Use Upper Stage


NASA’s Space Launch System (SLS) is deep into preparations for the key milestone of the Preliminary Design Review (PDR), which “kicks off” in June. Meanwhile, an interesting glimpse…

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SLS SMAT: The Mini-Me version of the monster rocket


The Marshall Space Flight Center (MSFC) is constructing a scaled version of the Space Launch System (SLS), ahead of test firing it later this year. Known as the…

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SLS Program pressing forward with engine heat shield design change


The Space Launch System (SLS) heat shields around its RS-25 engines will not follow the heritage of the Space Shuttle Program (SSP), following a decision to move away…

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Atlantis readied for her trip to the VAB – OPF-1 for transition


Atlantis is closing in on the end of her Transition and Retirement (T&R) processing, following the installation of her three Replica Shuttle Main Engines (RSMEs). Atlantis is scheduled…

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SSME family prepare for SLS core stage role following Shuttle success


NASA’s 15 Space Shuttle Main Engines (SSMEs) are being transported to the Stennis Space Center (SSC), as they transition towards their future role with the Space Launch System…

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Discovery receives her replica main engines ahead of final journey


The flagship of the shuttle orbiter fleet has received her three replica main engines, as Discovery prepares for next year’s ferry trip to her final resting place. The…

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SLS trades lean towards opening with four RS-25s on the core stage


The Space Launch System (SLS) is undergoing final refinements – known as trades – on a preferred baseline for the opening flights, with documentation showing a preference to…

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Shuttle orbiters may donate their entire MPS hardware to SLS


NASA’s three retired Space Shuttle orbiters are set to donate their entire Main Propulsion Systems (MPS) to the opening salvo of Space Launch System (SLS) Heavy Lift Launch…

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Preliminary NASA plan shows Evolved SLS vehicle is 21 years away


A new schedule, created by NASA, has provided a “preliminary, budget restricted” manifest which places the first flight of the fully evolved Space Launch System (SLS) in the…

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STS-135: Engineers retest MFV – ET-138 stringer inspections completed


Following its replacement on Atlantis’ SSME-3 (Space Shuttle Main Engine), the new Main Fuel Valve (MFV) underwent testing at Pad 39A – with a slight delay to its completion…

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STS-135: Crew arrives for TCDT as MFV work begins on SSME-3


Multiple efforts are under way for Atlantis’ STS-135 launch preparations, as her four member crew arrived at the Kennedy Space Center (KSC) for the Terminal Countdown Demonstration Test…

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Managers preparing for July 8 SLS announcement after SD HLV victory


Following an intense week of executive level reviews, a decision has been made on the configuration for NASA’s new launch vehicle. With NASA administrator Charlie Bolden agreeing to…