Greg Gentry has a Bachelor’s of Science in Aeronautical Engineering from California Polytechnic, San Luis Obispo. He was a member of the Rockwell International Shuttle Orbiter Team in Palmdale CA, building and testing Orbiter ECLSS systems prior to their delivery to Kennedy Space Center. After that he was a Lockheed Martin Test Project Engineer leading Air Force Shuttle Launch preparations at Vandenberg AFB, CA.
Once Boeing got the contract to design and build the International Space Station (ISS) pressurized elements in 1988, he supported design, build and test the Environmental Control Life Support System. He transferred with Boeing to Houston, TX in 1995 to be part of the team responsible for launch, on-orbit integration and operation of the ISS Environmental Control Life Support System and is still there today supporting the completed ISS vehicle and occasionally helping out on commercial and exploration vehicle and habitat Environmental Control Life Support System design studies.