So suddenly a blog is an admissible source? And This is not only a controvertial claim, but a provably false one. The illustration on this blog shows a 1932 patent which is not for a flying saucer. It's a patent for another replacement for a propeller. No one could read this patent without realizing this, so it's pretty obvious that Olteanu is either intentionally posting false claims, or didn't care enough about this subject matter to check the patent(not very likely, obviously if he really thought this patent might say what he chose to claim it says he would have posted the whole thing)The other drawings all date to the 50's. Which, interestingly enough, is when that 'brilliant rocket scientist, and Coanda scholar' Stine says the Aerodina lenticulara was invented!