Home›1960s United States military reconnaissance aircraft›Lockheed D-21🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoPolskiPortuguêsРусскийالعربيةفارسی한국어中文日本語EntityQ2454458· pop 17· linked from 197 articlesLockheed D-21Also known as D-21, Lockheed Q-12, Q-121962 American Mach 3+ reconnaissance droneWikidata factsMass2326.9ImageM21Ship2-cropped.jpgHeight2.235Length13.061Speed3.35Show 10 more factsCommons categoryLockheed D-21first flight1966-03-05service retirement1971-07-15total produced38vehicle range5556wingspan5.814maximum operating altitudeAvailable in 16 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةBahasa IndonesiaPolskiConnectionsLockheed AH-56 CheyenneEntityLockheed SR-71 BlackbirdEntityCategories1960s United States military reconnaissance aircraftAircraft first flown in 1964Composite aircraftLockheed aircraftRamjet-powered aircraftSingle-engined jet aircraftTailless delta-wing aircraftUnmanned military aircraft of the United StatesUnmanned stealth aircraft