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156 Top: These is an early drawing for the Moller XM-4, which underwent a number of design revisions, but failed to move out of ground effect and attain flight. Moller International Top: These drawings show the appearance of the Moller XM-3. Moller International Above: Bearing some similarities to the Sikorsky Cypher I, this design for a ducted fan UAV was produced in 1987 by Paul Moller. Moller International Above: One of several small ducted fan UAV designs undertaken by Paul Moller in the late 1980s. Moller International Secret Projects: Flying Saucer Aircraft