Encyclopedia Astronautica
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D-21
American air-launched drone. Project 'Tagboard', Project 'Senior Bowl'. Mach 3.5 ramjet recoverable reconnaissance drone air-launched from back of A-12 or with booster rocket from B-52.

AKA: GTD-21B. Status: Retired.

Family: aircraft-launched, drone. Country: USA. Agency: Lockheed. More at: 8238.



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