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By Space Force
Space Force officials have selected 14 senior master sergeants and 25 master sergeants for promotion in the 24S9 and 25S8 promotion cycles, respectively.
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By Space Force
The Department of the Air Force recorded significant audit achievements in Fiscal Year 2024, securing remediation's for all three of its audit roadmap targets, including two material weaknesses and one significant deficiency.
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By NASA
1 Min Read Oral History with Stephen G. Jurczyk, 1962 – 2023
NASA Acting Administrator Stephen G. Jurczyk Credits: NASA Steve Jurczyk’s NASA career began in 1988 at Langley Research Center as an engineer in the Electronic Systems Branch. During his time at Langley, he served in other roles, including director of engineering and director of research and technology. Jurczyk was named as director of Langley in 2014, then in 2015 he left Langley to serve as the associate administrator for the Space Technology Mission Directorate at NASA Headquarters. He quickly rose to the rank of associate administrator in 2018, and in January 2021 was named the agency’s acting administrator
Read more about Steve Jurczyk
NASA Oral History, September 22, 1921 NASA Honors Steve Jurczyk The transcripts available on this site are created from audio-recorded oral history interviews. To preserve the integrity of the audio record, the transcripts are presented with limited revisions and thus reflect the candid conversational style of the oral history format. Brackets and ellipses indicate where the text has been annotated or edited for clarity. Any personal opinions expressed in the interviews should not be considered the official views or opinions of NASA, the NASA History Office, NASA historians, or staff members.
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By NASA
1 Min Read Oral History with Mary L. Cleave, 1947 – 2023
61B-21-008 (26 Nov-1 Dec 1985) —The STS 61-B crew on the flight deck of the earth-orbiting Atlantis. Left to right, back row, are astronauts Jerry L. Ross, Brewster Shaw Jr., Mary L. Cleave, and Bryan D. O'Connor; and payload specialist Rodolfo Neri. Front row, left to right, payload specialist Charles D. Walker and astronaut Sherwood C. Spring. A veteran of two space flights, Dr. Cleave served as a mission specialist on STS-61B and STS-30. She went on to join NASA’s Goddard Space Flight Center and worked in the Laboratory for Hydrospheric Processes as the Project Manager for SeaWiFS, an ocean color sensor which is monitoring vegetation globally. Dr. Cleave next served as Deputy Associate Administrator, Office of Earth Science, NASA Headquarters, until her retirement in 2007.
Read more about Dr. Mary L. Cleave
NASA Oral History, March 5, 2002 NASA Biography NASA Remembers Trailblazing Astronaut, Scientist Mary Cleave In Memoriam: Mary Cleave The transcripts available on this site are created from audio-recorded oral history interviews. To preserve the integrity of the audio record, the transcripts are presented with limited revisions and thus reflect the candid conversational style of the oral history format. Brackets and ellipses indicate where the text has been annotated or edited for clarity. Any personal opinions expressed in the interviews should not be considered the official views or opinions of NASA, the NASA History Office, NASA historians, or staff members.
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By NASA
4 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
NASA’s X-59 quiet supersonic research aircraft sits in its run stall at Lockheed Martin’s Skunk Works facility in Palmdale, California, firing up its engine for the first time. These engine-run tests start at low power and allow the X-59 team to verify the aircraft’s systems are working together while powered by its own engine. The X-59 is the centerpiece of NASA’s Quesst mission, which seeks to solve one of the major barriers to supersonic flight over land by making sonic booms quieter.NASA/Carla Thomas NASA’s Quesst mission marked a major milestone with the start of tests on the engine that will power the quiet supersonic X-59 experimental aircraft.
These engine-run tests, which began Oct. 30, allow the X-59 team to verify the aircraft’s systems are working together while powered by its own engine. In previous tests, the X-59 used external sources for power. The engine-run tests set the stage for the next phase of the experimental aircraft’s progress toward flight.
The X-59 team is conducting the engine-run tests in phases. In this first phase, the engine rotated at a relatively low speed without ignition to check for leaks and ensure all systems are communicating properly. The team then fueled the aircraft and began testing the engine at low power, with the goal of verifying that it and other aircraft systems operate without anomalies or leaks while on engine power.
Lockheed Martin test pilot Dan Canin sits in the cockpit of NASA’s X-59 quiet supersonic research aircraft in a run stall at Lockheed Martin’s Skunk Works facility in Palmdale, California prior to its first engine run. These engine-run tests featured the X-59 powered by its own engine, whereas in previous tests, the aircraft depended on external sources for power. The X-59 is the centerpiece of NASA’s Quesst mission, which seeks to solve one of the major barriers to supersonic flight over land by making sonic booms quieter.NASA/Carla Thomas “The first phase of the engine tests was really a warmup to make sure that everything looked good prior to running the engine,” said Jay Brandon, NASA’s X-59 chief engineer. “Then we moved to the actual first engine start. That took the engine out of the preservation mode that it had been in since installation on the aircraft. It was the first check to see that it was operating properly and that all the systems it impacted – hydraulics, electrical system, environmental control systems, etc. – seemed to be working.”
The X-59 will generate a quieter thump rather than a loud boom while flying faster than the speed of sound. The aircraft is the centerpiece of NASA’s Quesst mission, which will gather data on how people perceive these thumps, providing regulators with information that could help lift current bans on commercial supersonic flight over land.
The engine, a modified F414-GE-100, packs 22,000 pounds of thrust, which will enable the X-59 to achieve the desired cruising speed of Mach 1.4 (925 miles per hour) at an altitude of approximately 55,000 feet. It sits in a nontraditional spot – atop the aircraft — to aid in making the X-59 quieter.
Engine runs are part of a series of integrated ground tests needed to ensure safe flight and successful achievement of mission goals. Because of the challenges involved with reaching this critical phase of testing, the X-59’s first flight is now expected in early 2025. The team will continue progressing through critical ground tests and address any technical issues discovered with this one-of-a-kind, experimental aircraft. The X-59 team will have a more specific first flight date as these tests are successfully completed.
The testing is taking place at Lockheed Martin’s Skunk Works facility in Palmdale, California. During later phases, the team will test the aircraft at high power with rapid throttle changes, followed by simulating the conditions of an actual flight.
NASA’s X-59 quiet supersonic research aircraft sits in its run stall at Lockheed Martin’s Skunk Works facility in Palmdale, California, prior to its first engine run. Engine runs are part of a series of integrated ground tests needed to ensure safe flight and successful achievement of mission goals. The X-59 is the centerpiece of NASA’s Quesst mission, which seeks to solve one of the major barriers to supersonic flight over land by making sonic booms quieter.NASA/Carla Thomas “The success of these runs will be the start of the culmination of the last eight years of my career,” said Paul Dees, NASA’s deputy propulsion lead for the X-59. “This isn’t the end of the excitement but a small steppingstone to the beginning. It’s like the first note of a symphony, where years of teamwork behind the scenes are now being put to the test to prove our efforts have been effective, and the notes will continue to play a harmonious song to flight.”
After the engine runs, the X-59 team will move to aluminum bird testing, where data will be fed to the aircraft under both normal and failure conditions. The team will then proceed with a series of taxi tests, where the aircraft will be put in motion on the ground. These tests will be followed by final preparations for first flight.
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Last Updated Nov 06, 2024 EditorLillian GipsonContactMatt Kamletmatthew.r.kamlet@nasa.gov Related Terms
Aeronautics Aeronautics Research Mission Directorate Ames Research Center Armstrong Flight Research Center Glenn Research Center Langley Research Center Low Boom Flight Demonstrator Quesst (X-59) Quesst: The Vehicle Supersonic Flight View the full article
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