BAE Systems said Wednesday is completed the $140 million sale of its Inertial Products business, which supplies military and commercial customers with inertial sensors and measurement units for the control, navigation and guidance of weapon systems, missiles, air and ground vehicles, and aerial targets, and provides digital terrain systems for aircraft. The cash sale to J.F. Lehman & Co. was announced April 24. “This divestiture is consistent with BAE Systems’ strategy to expand as a developer and integrator of systems and de-emphasize its role as a components provider,” said Mike Heffron, president of the BAE Systems’ Electronics & Integrated Solutions unit. The sale includes BAE Systems’ share of Silicon Sensing Systems, a joint venture with Sumitomo Precision Products that is based in the U.K. and Japan that provides solid-state sensors to automotive and military customers worldwide.