If you thought you saw a "flying saucer" chances are, it could have been this. or something like it 

It was an experimental nuclear warhead delivery system under development during the Cold War by defense contractor North American Aviation, managed out of Wright-Patterson Air Force Base in Dayton, Ohio. In the 1950s and early 1960s, the U.S. military and NASA experimented with designs that resembled flying saucers. One of these LRV projects was declassified in 1999. If you saw a flying disc back in the day near one of these bases, it might have been one of these unique aircraft.

PZL M-15 Belphegor