Avionics
BAE Systems to Supply B-2 Threat-Warning System Upgrade
Prime contractor Northrop Grumman selected BAE Systems to replace the current AN/APR-50 defensive management system on the stealthy B-2 Spirit bomber. (Photo: Northrop Grumman)
Prime contractor Northrop Grumman selected BAE Systems to replace the current AN/APR-50 defensive management system on the stealthy B-2 Spirit bomber. (Photo: Northrop Grumman)

With a recent contract award from Northrop Grumman to provide electronic support measures (ESM) on the B-2 Spirit bomber, BAE Systems will be providing electronic warfare systems on all three U.S. Air Force low-observable platforms, including the F-22 and F-35 fighters, according to the company. The new ESM system will replace the original Lockheed Martin AN/APR-50 defensive management system on the 20 B-2s. The ESM system works in conjunction with the radar warning receiver to detect and alert aircrew to electronic threats.