B77 Strategic Bomb

The B83 is derived from the earlier B77, which was terminated due to cost, complexity, and the excessive weight of the bomb delivery system. The warhead package is basically the same, with the difference being in the bomb body and delivery system. The General Dynamics FB-111A could carry six AGM-69A Short Range Attack Missiles (SRAM) or up to 37,500 lbs. of conventional or nuclear weapons (B43, B61 or B77).