Stewart Bushman Print



:   Propulsion Engineer

:  Planetary, Earth


Degree Field of Study Year Attained Institution Name
B.S. Mechanical Engineering 1995 University of Rochester
M.S. Aeronautical and Astronautical Engineering 1999 University of Illinois at Urbana-Champaign

Propulsion Section Supervisor in the Mechanical Systems Group of the Johns Hopkins University Applied Physics Laboratory Space Exploration Sector. Lead propulsion engineer for multiple interplanetary spacecraft including New Horizons, STEREO, and Dragonfly. Proficient in test, design, review, and procurement of liquid monopropellant/bipropellant, electric propulsion, and micropropulsion systems.

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Start Year End Year Description
2012 Current Section Supervisor, JHU/APL Supervise the Propulsion Section of Mechanical Systems Group (SEM-6). Establish vision for section. Give performance evaluations. Assign tasks to staff and maintain staffing profile to ensure coverage. Actively pursue new business for the Section/Group.
2005 Current Propulsion Engineer, JHU/APL Propulsion Lead for the New Horizons, STEREO, and Dragonfly spacecraft. Design propulsion systems and write specifications, statements of work, and requests for pricing/information. Manage cost using Earned Value Management system. Supervise all integration and testing (vibration, thermal vacuum, etc.) of the propulsion systems. Calculate mission propellant usage and margin. Monitor spacecraft during maneuvers.
Year Description
2018 MESSENGER Group Achievement Award, NASA, To the MESSENGER Project Team for exceptional contributions to the first mission to orbit Mercury, executing unprecedented observations adding to humankind's understanding of our solar system's innermost planet.
2017 Walter G. Berl Award - Outstanding Paper in the Johns Hopkins APL Tech Digest, Johns Hopkins University Applied Physics Laboratory (JHU/APL), For: Gold, R. E., Bushman, S. S., et al., “Maximizing MESSENGER’s Science Return with Technologies and Innovation,” Johns Hopkins APL Technical Digest, Volume 34, Number 1 (2017), pp. 71-87.
2016 Certificate of Achievement, NASA, Space Communications and Navigation - STEREO-B Recovery Team: For demonstration of the proficiency of uplink array commanding with widely spaced antennas to attempt the recovery of the STEREO-B spacecraft.
2016 New Horizons Group Achievement Award, NASA, To the New Horizons Team for exceptional contributions in the successful completion of the initial reconnaissance of the Pluto system, providing humanity's first up-close look at Pluto and its moons.
2013 Group Achievement Award, National Aeronautics and Space Administration (NASA), Van Allen Probes Project Team
2011 - Present Member, AIAA Liquid Propulsion Technical Committee, Awards Subcommittee Chair
2007 Group Achievement Award, National Aeronautics and Space Administration (NASA), New Horizons Spacecraft Development Team
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