Republic chief test pilot Carl Bellinger makes the first flight of the XF-91 Thunderceptor jet/rocket hybrid at Muroc AFB, Calif. This unusual aircraft has variable incidence wings of inverse taper design (wider at the tips than at the roots).
Air Force Gen. Alexus G. Grynkewich assumed command of U.S. European Command on July 1, taking over the key assignment as the U.S. and its allies contend with a resurgent Russia and a grinding war in Ukraine.
