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Manfred Ruhmer has designed a motorized trike for the Laminar wing under which he has flown to world champion status three times, and achieved a world record flight of 701 kilometers (434.62 miles).  The trike can be powered with a Simonini two-stroke or Bailey four-stroke engine, or the Geiger/Eck electric motor/controller/folding propeller combination. Here, Manfred shows off some of his world-class flying skills.  Note that about 40 seconds into the video, the landing gear has picked up some vegetation.  Later, at around the 2:00 mark, the streamers reappear.  Whether this is from the grassy field from which Manfred flies, or some very low passes, is open to speculation. The Icaro 2000 site is useful for making some important comparisons between the IC engine options and the electric flyer. Each of the two engines’ installed weights is 18.3 kilograms (40.26 pounds), and the fuel tank for either holds 8 liters of fuel.  Icaro claims both engines consume about 2 to 2.5 liters per hour, giving up …