TYPE: Advanced radar testbed.

PROGRAMME: Modified Lockheed NC-141A StarLifter for USAF 4950th Test Wing at Wright-Patterson AFB, Ohio to evaluate response of modern airborne radars to jamming and other ECCM; first in-flight test 30 July 1990, for use until late 1990s.

DESIGN FEATURES: Modified by Lockheed at Greenville with Hughes and Westinghouse as subcontractors; interchangeable nose radomes; intended to improve anti-jamming capabilities of radars in B-1B, F-15, F-16 and F-22; modified cooling and electrical systems.