Lockheed D-21

Lockheed D-21 adalah drone pengintai komposit Amerika berkecepatan Mach 3+. D-21 pada awalnya dirancang untuk diluncurkan dari belakang pesawat M-21 varian dari pesawat Lockheed A-12.

Pembangunan dimulai pada Oktober 1962. Awalnya dikenal oleh Lockheed penunjukan Q-12, pesawat tak berawak itu dimaksudkan untuk misi pengintaian yang mendalam di wilayah udara musuh.

Referensi

  • Donald, David, ed. (2003). "Lockheed's Blackbirds: A-12, YF-12 and SR-71". Black Jets. Norwalk, Connecticut: AIRtime Publishing. ISBN 1-880588-67-6.
  • Goodall, James C. and Nora D. (2002). "Senior Bowl–the Lockeed D-21". International Air Power Review. 3. Norwalk, Connecticut: AIRtime Publishing: 106–119. ISSN 1473-9917.
  • Gordon, Yefim (2005). OKB Tupolev: A History of the Design Bureau and its Aircraft. Hinckley, England: Midland Publishing. ISBN 1-85780-214-4.
  • Landis, Tony R. (2005). Lockheed Blackbirds. Warbird Tech. Vol. 10 (Edisi Revised). North Branch, Minnesota: Specialty Press. ISBN 1-58007-086-8.
  • Miller, Jay (1995). Lockheed Martin's Skunk Works (Edisi Revised). Leicester, England: Midland Publishing. ISBN 1-85780-037-0.
  • Pace, Steve (2004). Lockheed SR-71 Blackbird. Swindon: Crowood Press. ISBN 1-86126-697-9.
  • Peebles, Curtiss (1999). Dark Eagles: A History of Top Secret U.S. Aircraft Programs (Edisi Revised). Novato, California: Presidio Press. ISBN 0-89141-696-X.
  • Rich, Ben (1996). Skunk Works. Boston: Little, Brown & Company. ISBN 0-316-74300-3.

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