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The site had the following in the homepage, "Dissertation service is a great place for quality information." I noticed that the web site stated " VTOL Aircraft With Four Rotating Wings for Power." They also stated " A few months ago, I was talking to one of the inventors and designers of a new prototype. It was a small scaled model with a rotating wing. Nevertheless the concept is valid, it does work, and if done correctly it could solve some problems or the challenges of VTOL flight. First Id like to say that the transition between vertical flight and horizontal flight."