Tom Martin, senior manager for DoD & commercial launch at Aerojet Rocketdyne, discusses the status of the AR-1 booster engine program, test results and more with Defense & Aerospace Report Editor Vago Muradian. The interview was conducted on May 10, 2017, at the E Test Complex at NASA’s John C. Stennis Space Center, Mississippi. The Defense & Aerospace Report’s Stennis coverage was sponsored by Aerojet Rocketdyne.