HARTFORD, CT -- As the Air Force moves through renewed discussions about replacing the engine in its 60-year-old B-52 bomber, Pratt & Whitney is discussing with the service an engine upgrade that would allow the aircraft to maintain its current design without an intrusive airframe modification. Pratt & Whitney's President of Military Engines Bennett Croswell told Inside the Air Force in an April 2 interview that this is not the first time the service has reached out to the...