The PW4000 – History & Future by admin | Nov 19, 2014 | Airbus, Airbus A330, Boeing, Boeing 747-400, Boeing 777, Military, Pratt & Whitney | 0 comments Pratt & Whitney’s Dr Alan Epstein talks about the PW4000, its history and future as the power plant for the upcoming USAF aerial tanker. Please follow and like us: Like this:Like Loading... Submit a Comment Cancel replyYour email address will not be published.Comment Name Email Website Notify me of follow-up comments by email. Notify me of new posts by email. This site uses Akismet to reduce spam. Learn how your comment data is processed.