![The Time I Found a Formerly Top Secret D-21 Supersonic Drone in the Arizona Desert - The Aviationist The Time I Found a Formerly Top Secret D-21 Supersonic Drone in the Arizona Desert - The Aviationist](https://i0.wp.com/theaviationist.com/wp-content/uploads/2018/06/D21_20.jpg?ssl=1)
The Time I Found a Formerly Top Secret D-21 Supersonic Drone in the Arizona Desert - The Aviationist
![The Lockheed D-21, a Mach 3.3 Drone intended for launch from the SR-71 Blackbird : r/EngineeringPorn The Lockheed D-21, a Mach 3.3 Drone intended for launch from the SR-71 Blackbird : r/EngineeringPorn](https://preview.redd.it/the-lockheed-d-21-a-mach-3-3-drone-intended-for-launch-from-v0-vi3a7g010rx91.jpg?width=640&crop=smart&auto=webp&s=238c0e4efb8fd3373e6aacad46e56da6d2c80a3e)
The Lockheed D-21, a Mach 3.3 Drone intended for launch from the SR-71 Blackbird : r/EngineeringPorn
![The Lockheed D21 a 1960s reconnaissance drone. made during the time of film photography. Once completed its tour .the film was designed to be ejected from the craft which would self destructed. The Lockheed D21 a 1960s reconnaissance drone. made during the time of film photography. Once completed its tour .the film was designed to be ejected from the craft which would self destructed.](https://preview.redd.it/the-lockheed-d21-a-1960s-reconnaissance-drone-made-during-v0-0441pchy37y91.png?width=595&format=png&auto=webp&s=85e74262318ae367de097b18307e614fe0596a90)
The Lockheed D21 a 1960s reconnaissance drone. made during the time of film photography. Once completed its tour .the film was designed to be ejected from the craft which would self destructed.
![SR-71A Blackbird w/D-21B Drone - Philatélie - PostBeeld.fr - Boutique en ligne des timbres, collecte SR-71A Blackbird w/D-21B Drone - Philatélie - PostBeeld.fr - Boutique en ligne des timbres, collecte](https://www.postbeeld.fr/media/catalog/product/cache/11/small_image/cda336a043e3dd4940536205f9a4466b/v/h/vhp02041.jpg)