EntityQ15131841· pop 17· linked from 183 articlesLockheed Martin SR-72Sign in to saveUS Air Force hypersonic aircraft conceptConnectionsLockheed AH-56 CheyenneEntityDARPA Falcon ProjectEntityintelligence, surveillance, target acquisition, and reconnaissanceEntityLockheed Martin F-22 RaptorEntityvice presidentEntityhypersonic speedEntityLockheed A-12EntityX-51 WaveriderEntityLockheed VenturaEntityNASAConceptSpace ShuttleEntityUnited States Air ForceEntityGeneral Dynamics F-16 Fighting FalconEntitychief executive officerEntityLockheed Martin F-35 Lightning IIConceptMach numberEntityBoeing B-52 StratofortressConceptLockheed MartinEntity3D printingEntityintercontinental ballistic missileEntityCategoriesAircraft with retractable tricycle landing gearHypersonic aircraftLockheed Martin aircraftLow-wing aircraftProposed military aircraft of the United StatesScramjet-powered aircraftStrategic reconnaissance aircraft