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Cover e-flight-show Story 22 e Flight Journal 1 / 2018

e-flight-show eFusion Hybrid takes off HHiglight of this years e-flight-Show is for sure the Siemens/Magnus formation flight with the eFusions: for the first time two or three electric Aircraft of the same type are flying in Formations. The Siemens and Magnus Test pilots practiced this Formation in the last month at the Magnus facilities in Hungary. Now it is clear that not only in Slovenia where the serial production of the Alpha Electro is ramped up to one Aircraft a week, also in other places serial production of electric aircraft has begun. MAIDEN FLIGHT - MADE JUST IN TIME Five days before the AERO/e-flight-expo - the most important show for General and Electric Aviation world wide - Siemens achieved another milestone: the take off for the maiden flight of the eFusion Hybrid. SERIES-HYBRID PROPULSION SYSTEM: Although the aircraft is flying at the moment as an Experimental aircraft at a little more than 600 Kg, it could fit in the new 600 Kg Ultralight Class and could be sold in most European countries as an Ultralight which would lower the price and raise sales chances of this interesting aircraft for ultralight training. We hope that Hungary will join the 600 Kg “Opt- Out Club” started by Germany and Czech Republic. 4 Three times Fusion 2 electric (front) + one with Rotax 912 - soon the new Hybrid will join the formation. TECHNICAL SPECIFICATION: • Siemens SP55D Propulsor motor: max 72 kW take-off (2 min.) and 55 kW max continuous power @ 3000 RPM. • Siemens SP55G Generator motor: max 72 kW (2 min.) and 55 kW max continuous @ 3000 RPM • FlyEco Diesel engine as a range-extender: datasheet attached • Engine generator set (genset): 35 kW max power @ 3000 RPM, 30 kW max. continuous power @ 2500-3000 RPM controlled to charge batteries back to cca. 95 % SoC with max. 7 kW charging power. • High power battery pack ensures taxiing, taking-off and climbing electrically: 4 swappable modules, 7 kWh nominal energy, max 60 kW take-off (2 min.) power. • Fault tolerant hybrid propulsion control provides about 2…3 flight hours considering initial 25 liter gasoline and 95 % SoC with the hybrid eFusion (real values to be investigated). 1 / 2018 e Flight Journal 23

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