| Four-engine plan Elflyg at premiere |
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 Didier Esteyne rolls out of the test flight of the Cri-Cri at Le Bourget outside Paris. EADS four-engine Cri-Cri elflyg plan made its premiere flight on Thursday. Eventually it will be acrobatic flying. At 11:12 on Thursday lifted the Cri-Cri from Le Bourget-flygfaltet outside Paris. It is the world's first electrically powered four-engine acrobatic plane. The plane stayed in the air for 7 minutes and the grade after the flight was approved, a smooth start, no vibration, and easy to maneuver. Test Pilot Didier Esteyne was very pleased with how quiet it was flying Cri-Cri, but he points out that we should not test the acrobatic flight until the plane was five hours in the air and perform the 15 landings. Even with EADS not believe in battery-powered aircraft on a larger scale in the near future hope but with the project obtain much knowledge about the electric airplanes. The fuselage is built of lightweight composite materials that will compensate for the battery weight. Batteries consist of energy-dense lithium-ion batteries. The batteries capacity gives the plane 30 minutes of cruising speed 110 km / h, 15-minute acrobatic flight at speeds up to 250 mph and a climb speed of 5.3 m / s. The plane is powered by four brushless electric motors with counter-rotating propellers. The project is one of several in which the European aerospace group is testing alternative propulsion technologies and fuels, including bio-fuels and hybrid electric algbaserat operation of helicopters. |
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