Orlando Carvalho, Lockheed Martin’s executive vice president for aeronautics, discusses offering a fifth-generation derivative aircraft to Japan, the fate of the F-16 and F-35 contingency plans.

Lockheed Martin has offered a derivative of the F-22 Raptor or F-35 Lightning for Japan’s Future Fighter program.

FARNBOROUGH, England—Following the announcement of Britain’s future combat air system effort, known as Tempest, U.S.