Chris Johnson, the executive director for mobility and diverse engines at Pratt & Whitney, discusses the company’s PW815 engine as a replacement for the Pratt & Whitney TF33s now powering the US Air Force’s fleet of B-52 Stratofortress bombers with Defense & Aerospace Report Editor Vago Muradian at the Air Force Association’s 2020 Air Warfare Symposium in Orlando. Our coverage was sponsored by Leonardo DRS.