For anyone interested in this kind of thing (UFO stories that discount the idea of aliens etc... ), take a read into the back story of Alexander Weygers. He was a polymath who patented an invention called a 'disc copter' in 1945 ( about 5 years before the phrase "flying saucer became popular"). There is a gentleman who has an art gallery down the street from my house who is probably the premier "expert" on the back story of this guy. I was lucky enough to apply for a web assistant gig there hence he told me the entire back story over the course of an hour and gave me a tour of some of the original art he has from Weygers. To make a long story short Weygers use to live in Carmel California and was a builder, artist, inventor etc. He invented this "Disc Copter" invention and his students said that "Men in black suits" would visit him during the course of their mentoring sessions; and when they did Weygers refused to talk much about it. Look him up. This documentary looks good btw.
Given that the term "flying saucer" seems to be a misnomer from Kenneth Arnold's report that described the motion of the observed object as being "like a saucer skipping on a pond" and his sketch of the object shows something that looks a bit like a flying wing (http://photos1.blogger.com/blogger/4376/798/1600/Kenneth%20A...) which notoriously have a bucking or skipping motion in the air, it would be fairly weird if a disc-shaped object were involved. Edit: there's some speculation it might have been the German Horten Ho 229: http://fc09.deviantart.net/fs70/i/2011/159/e/d/horten_ho_229...
It would be like you giving me an inaccurate description of something based on someone else's report, and me mangling your description into something that just happened to be very much like the original. It's not impossible, but you'd have to be pretty optimisic to call it remotely plausible.