AEROSPACE

Singapore Wants to Purchase Lockheed F-16s: The U.S. Defense Department said Singapore wants to buy up to 18 of the fighter jets for $890 million. The sale--which would also include spare engines, air-to-air missiles and personnel training--will become official by year’s end if Congress does not object. Lockheed, based in Calabasas, builds the F-16 in Ft. Worth, Tex. The company currently has an F-16 backlog of about 700 aircraft.