The new AESA radar is a major part of the U.S. Air Force's plan to thoroughly revamp the venerable B-52, and extend its life into at least the 2050s.
Public flight tracking websites showed a pair of U.S. Navy F/A-18 fighter jets fly over the Gulf on Tuesday.
The unarmed nuclear bombs were dropped from an F-35A at the Tonopah Test Range in Nevada.
The Air Force warns that having a smaller fleet may increase the risk it won't be able to carry out all its missions.
