Fifteenth Air Force crews temporarily close the Brenner Pass between Italy and Austria. This mission, against the Aviso viaduct, is the first operational use of the VB-l Azon (Azimuth Only) radio- controlled bomb.
Lockheed Martin projects more than a billion dollars of losses on a classified program, but company officials said April 23 they are confident it will turn profitable by 2028 and become a "franchise" system in the U.S. military.