He began in summer 1952 , according to Angelucci in his book The Secret of the Saucers ( 1955 ) .
He began to encounter flying saucers and their friendly human - appearing pilots during his drives home from the aircraft plant .
Beginning in summer 1952 , according to Angelucci in his book The Secret of the Saucers ( 1955 ) , he began to encounter flying saucers and their friendly human - appearing pilots during his drives home from the aircraft plant .