EntityQ1867558· pop 13· linked from 317 articlesLockheed Martin X-56Sign in to savemodular unmanned aerial vehicle designed to explore High-Altitude Long Endurance flight technologiesConnectionsLockheed AH-56 CheyenneEntityLockheed A-12Entitylist of X-planesEntityLockheed VenturaEntityaeroelasticityEntityUnited StatesCountryNASAConceptunmanned aerial vehicleEntityWayback MachineEntityGeneral Dynamics F-16 Fighting FalconEntityLockheed Martin F-22 RaptorEntitychief executive officerEntityLockheed Martin F-35 Lightning IIConceptLockheed MartinEntityLockheed C-130 HerculesEntityBoeing B-17 Flying FortressEntityLockheed F-117 NighthawkEntityLockheed SR-71 BlackbirdEntityOrion (spacecraft)ConceptLockheed U-2EntityCategories2010s United States experimental aircraftAircraft first flown in 2013Aircraft with fixed tricycle landing gearBlended wing bodyLockheed Martin aircraftNASA aircraftTwinjetsUnmanned aerial vehicles of the United States