An SR-71B cruises over the Tehachapi Mountains in California in 1992. The SR-71 was used in a program to study ways of reducing sonic booms that are heard on the ground when an aircraft exceeds the speed of sound.

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Size: 1536px × 1367px
Photo credit: © LOU Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1992., aircraft, booms, california, cruises, exceeds, ground, heard, mountains, nasa, nasaimageexchangecollection, program, reducing, sonic, sound., speed, sr-71, sr-71b, study, tehachapi, ways