Image:D-21 Booster Launch.jpg

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Description	English: A D-21 launches from its B-52 carrier aircraft, using a massive rocket booster to accelerate it to a high enough speed for its ramjet engine to operate. Photograph was most likely taken by a crewman in the B-52 that launched the drone. The D-21 program was top secret at the time, ruling out the possibility of a civilian taking the picture.
Source	http://roadrunnersinternationale.com/d-21/D-21_historial.html
Date	Unknown
Author	US Air Force
Permission (Reusing this image)	PD-US Air Force

[edit] Licensing:

This image or file is a work of a U.S. Air Force Airman or employee, taken or made during the course of the person's official duties. As a work of the U.S. federal government, the image or file is in the public domain.

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