The single-seat F-16XL joins up with an SR-71A as crews set up for one of the flights in the sonic boom research program conducted by the Dryden Flight Research Center, Edwards, California. During the missions, the F-16XL probed the shockwaves generated by the SR-71, while at lower altitudes sensors on an F-18 and on a YO-3A, and also on the ground, recorded data from the same shockwave. supportEmptyParas]>

Credit - NASA/Jim Ross