Posts Tagged ‘SSME’

no alt

SLS configuration nears decision point – Two-phase approach rejected


A decision on the configuration of the Space Launch System (SLS) Heavy Lift Launch Vehicle (HLV) is just weeks away, as final evaluations take place into a “staged…

no alt

STS-134: SSMEs ready to fly – Stack cleared following more bad weather


Endeavour is happily moving through her pad flow, despite having to endure yet more bad weather over her launch pad – resulting in additional inspections for hail damage…

no alt

STS-133: Discovery closing in on launch day – MEC investigation review


Engineers have successfully cleared all of Discovery’s minor issues, allowing the veteran shuttle to head towards the upcoming key countdown milestones. While all eyes will be on her…

no alt

STS-133: MMT decide to press ahead with Thursday launch attempt


The Mission Management Team (MMT) evaluations into the anomalies on the redundant Main Engine Controller (MEC) on SSME-3 have concluded with the approval for the required flight rationale,…

no alt

STS-133: Launch delayed at least 24 hours due to Main Engine Controller issue


Discovery has been given another hurdle to negotiate ahead of her opening launch attempt, after an electrical issue was noted on the redundant Main Engine Controller (MEC) on…

no alt

STS-133: Discovery through PRSD load tasks – Stalwart SSMEs reviewed


Discovery is enjoying an issue-free S0007 (Launch Countdown), as engineers complete the loading of the orbiter’s Power Reactant Storage and Distribution (PRSD) system. The veteran orbiter remains on…

no alt

Replica engines recommended for retired orbiters – Flown SSMEs for HLV


All three orbiters are set to donate their Space Shuttle Main Engines (SSMEs) to the Heavy Lift Launch Vehicle (HLV) program, following their final flights. A Program Requirements…

no alt

STS-133: Discovery’s replaced SSME heading into key torque checks


With Discovery’s three Space Shuttle Main Engines (SSMEs) now reinstalled on the orbiter, engineers should know by Friday if they have solved the torquing issue with ME-1. The…

no alt

STS-133: Engine placement order altered for Discovery


Two of Discovery’s Space Shuttle Main Engines (SSMEs) will be re-installed in opposite positions, following their removal to allow for work to take place on Main Engine #1…

no alt

Discovery’s SSMEs to be removed on Thursday due to LPOTP issue


Engineers are preparing to remove Discovery’s three Space Shuttle Main Engines (SSMEs) on Thursday, after SSME 1’s Low Pressure Oxidizer Turbo Pump (LPOTP) failed torque checks. No schedule…

no alt

Atlantis into pressurization tasks – numerous SSME items discussed at FRR


Engineers are heading into a weekend of critical operations for STS-132, as Atlantis undergoes flight pressurization operations on the systems that will aid her journey to the International…

no alt

STS-130 Endeavour beats the weather and launches, SSME improvements


Shuttle Endeavour has launched on the second launch to start STS-130, following a 24 hour scrub due to unacceptable cloud cover on Sunday morning. The youngest orbiter in…

no alt

IFA Review reveals solid performance of STS-129 SRBs and Main Engines


Capping off a highly successful year for the Space Shuttle Program, the STS-129 flight of Atlantis last month has undergone its final, official post-flight assessment: the all-important In-Flight…

no alt

Extension decision no closer after “one heck of a year” for shuttle


The Space Shuttle Program (SSP) will have “no idea” where it stands from a budget standpoint until February, as the viability of extending the shuttle manifest continues to…

no alt

STS-129: Atlantis in preps for TCDT – SSME nozzle flight rationale


Atlantis is enjoying a relatively smooth pad flow, with only three issues being worked, as engineers prepare the shuttle for the Terminal Countdown Demonstration Test (TCDT) next week….

no alt

STS-129: Atlantis arrives in VAB for mating – SSME mystery


Atlantis is preparing to mate with her External Tank (ET-133) and twin Solid Rocket Boosters (SRBs), following rollover to the Vehicle Assembly Building (VAB) on Tuesday morning. Meanwhile,…

no alt

Atlantis tracking Tuesday rollover – Two more ETs due at KSC this year


STS-129 is pressing ahead with the next processing milestone, with¬†Atlantis preparing to roll over from her Orbiter Processing Facility (OPF-1) for the short journey to the Vehicle Assembly…

no alt

Adhesive tape caused STS-127 SSME nozzle leaks – STS-130 SSME milestone


Pratt & Whitney Rocketdyne engineers have found the application of “tacky tape” – used to seal the throat plugs on the Space Shuttle Main Engines (SSME) since the…

no alt

Investigation called after STS-127 SSME 1 found to have 100s of leaks


A failure investigation team has been created for Endeavour’s Number One Space Shuttle Main Engine (SSME) that was used¬†during STS-127, which was found to have hundreds of leaks…

no alt

STS-127 FRR Outlines Engine and Flight Operations Changes for JAXA Mission


With final launch processing underway on Shuttle Endeavour at Launch Pad-A, NASA managers have outlined several changes to Endeavour’s Main Propulsion System (MPS), Ground Umbilical Carrier Plate (GUCP),…