Multiplex Sonic-Liner...

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This video was shot in Hastings Minnesota at the RVRC club field on a calm evening in 2006. The Sonic-Liner is made in Germany and is not sold in the USA anymore. It has two Mega 15/16/2 Brushless Motors and can draw over 120 amps at 7.2 volts on the 8,000mAh battery with two e-Flight 40 amp brushless speed controllers. That is over 800 watts of power, and using an estimated efficiency factor of 80%, that is 9/10 of a horsepower. The Props are Graupner folding 7.5" x 4" (19cm x 10cm)and spin at 19,000 RPM static. I can fly faster than the cars that go by on the road and they are going about 60MPH (100KPH). I have flown the plane for 40 minutes continuously before landing. It can fly straight up in the first 10 minutes of flight. I use the computer radio to drop the front canard and the rear ailerons down for added lift and aero-drag for "air-brake" slow landings. This plane is great in cross winds even though it weighs only 3.1 pounds (1,410 grams). The plane has a wingspan of 50 inches (1265mm), and a length of 51 inches (1300mm).