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8 months ago

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e Training The long way

e Training The long way to the electrical future English Channel crossing and MGM COMPRO Every aviation enthusiast knows the Airbus E-Fan, which took off at Lydd (UK) on July 10th 2015, and landed 37 minutes later at Calais in France lying 75 miles away. Under great media attention, Airbus celebrated afterwards the first Channel crossing with a manned allelectric plane. However, few insiders knew that the heart piece of the aircraft - namely the electric drive system – had significant contribution from a small Czech electric drive manufacturer. Who is behind it? The Archeopteryx (photo left) with a RET 30 engine (12 kW), MGM COMPRO HBC 25063 controller (photo right side, left) and LiPo 40 Ah battery (50 V). The flight duration is 60 minutes. 28 e Flight Journal 2 / 2017

e Training Airbus E-Fan with four RET 60 (25 kW) engines and a REG 30 (7 kW) engine for driving the wheel gear. The flight duration is about 40 minutes. tMGM Compro The story of the small Czech firm began in 1998, when a frustrated businessman named Boris Guič returned to his old passion for the flying of airplane models. Delighted by the technical progress that has taken place in the meantime, he began to build his own models with electric drives. E-motors with up to 7 kW power have been developed, so that model airplanes with a span of 2.6 m could be propelled. But if you wanted even higher performance, things got complicated, because then sophisticated power electronics had to be implemented. At this time, Mr. Grisa Dvorsky, the owner of MGM COMPRO, offered him help. The Czech company MGM COMPRO located in Zlin already had an excellent reputation in the production of model electronics and industrial controllers. Mr. Guič was looking for a controller to control his powerful engine, while Mr. Dvorsky was looking for a powerful engine to fully load his controller. Grisa and Martin Dvorsky (photo right) are the main persons from MGM COMPRO. They offer power electronics not only for models but also powertrains for larger aircraft. 2 / 2017 e Flight Journal 29