System integration, installation, and testing on the re-configured aircraft was performed in less than three months, with each aircraft requiring tens of thousands of hours of modification, according to a company official.
SUNNYVALE, Calif., 17 Dec. 2008. The first Space-Based Infrared System (SBIRS) Highly Elliptical Orbit (HEO-1) payload and ground system, built by a Lockheed Martin team, has been certified for operations by U.S. Strategic Command.
