Washington, Jan 6 : Distinguished aerospace expert Vivek Lall has joined Lockheed- Martin to look after the companys combat jet programme, specifically the newer generation F-16 Block 70 that the company has offered for production to India. Lall took over his new assignment as Vice President, Strategy and Business Development, on on January 2 at the company's aircraft production facility at Fort Worth, where the F-16 Falcon, F-35 Lightning II and other combat and transport aircraft like the F-22 Raptor and C-130J Super Hercules are made.