Raytheon’s multi-spectral guidance sensor for use on the company’s Small Diameter Bomb II design recently exceeded performance targets in laboratory testing, announced the company Monday. The tri-mode seeker head combines millimeter-wave radar, imaging infrared, and laser guidance to maximize effectiveness against all manner of targets in all weather. The sensor’s test performance validated Raytheon’s choice of an un-cooled IR sensor over a more complex and costly cooled unit, said company officials. “We kept SDB II affordable by designing it to meet—not exceed—government requirements. The fact that the uncooled IIR sensor surpasses design specifications is a win for the warfighter and the taxpayer,” said Harry Schulte, vice president of air warfare systems. Raytheon won the contract to build the bomb in August 2010.
The use of a military counter-drone laser on the southwest border this week—which prompted the Federal Aviation Administration to abruptly close the airspace over El Paso, Texas—will be a “case study” on the complex web of authorities needed to employ such weapons near civilian areas and the consequences of agencies…

