This project was supported in whole or in part by the U.S. Institute of Museum and Library Services under the provisions of the Library Services and Technology Act, administered in California by the State Librarian Made accessible through a grant from the John Randolph Haynes and Dora Haynes Foundation and Photo Friends
Photograph caption dated October 14, 1957 reads "Col. Dean Hess, who heads Air Force's information office in Los Angeles, explains sonic blast program to some 200 spectators who listened and watched as sonic booms rained down from jet fighters passing through sound barrier over Boomtown, U.S.A. Project was jointly sponsored by Navy, Marines and Air Force." See image 00155215 for additional photo in this series.
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