senior senior classified black program conducted united_states_air_force conjunction development testing cruise missile stealth technology based company blue senior vehicles proved successful testing conducted area late 1970s despite aircraft selected enter production program terminated early 1980s design development following success test programme lockheed blue stealth technology aircraft united_states_air_force awarded contract division works development aerial vehicle intended act prototype cruise missile apply blue design order reduce radar cross section missile electromagnetic waves radar away source instead directly radar set antenna program begin reported budget usd design aircraft closely based blue scaled intended launch lockheed hercules aircraft original configuration senior vehicle included ventral fin aircraft later modified include tail slender wings closer configuration stealth fighter radar material applied airframe stealth configuration addition design similar blue wing profile bore similarities stealth bomber senior vehicle intended modified testing commenced parachute landing bag located fuselage aircraft believed fitted folding wings carriage launching aircraft powered single engine air intake exhaust manner airframe shield ground reducing aircraft radar infrared signatures testing cancellation flight testing senior vehicles began october total aircraft built completed total fourteen flights duration testing programme craft reportedly capable flying feet radar generating return testing took place area nevada hercules acting launch aircraft reports testing conducted edwards air force base california launch platform hangar groom lake test complex reportedly constructed house senior combination despite success test programme senior cancelled reportedly reason cancellation project size configuration senior aircraft rendered incapable carried internal weapons bays bomber competing design senior cruise missile requirement slender airframe retractable wings rendered capable internal carriage began flight testing shortly end senior programme despite cancellation programme senior remained highly classified 21st century rumours small number senior aircraft aerial reconnaissance acquired united_states_air_force utilised secret missions eastern_europe late cold war iraq operation north_korea official confirmation case
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