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News of the Airbus A400M
:: 01 January, 2002
The Airbus A400 million shares some similarities with the Boeing 787 Like the American airliner, the A400 M is first out of the channel assembly for several months without testing could not really start. This time, it is not a problem of rivets, but an engine problem. More precisely, a problem of the Automatic engine adjustment system. This deserves some explanation.
If the Airbus military transport is presented in the aspect of a four-propeller, it uses techniques actually quite new in terms of propulsion The engineers were faced with a specification of the more complex it is. The A400 M should be able to operate at full load and the payload is what is actually transported by means of ...) on rudimentary runways less than 1000 meters being able to integrate air traffic airliners. Worse for it all, the payload capacity is much higher than the current C130 and C160 Hercules Transal. In fact, M is the A400 midway between the Boeing C17 and tactical transport aircraft standards.
To achieve such a feat, engines and wings must both develop a strong lift and strong performance at low speed while having a profile aerodynamic to subsonic speeds. Currently, there are transport aircraft capable of takeoff / landing on short runways, aircraft capable of evolving to more than 750 km / h, but none are able to do both. The engineers have opted for the turbo which remain the best solution for takeoffs / landings short.
However, this choice involved to make the A400 one million aircraft propellers fastest in the world. So far, the Tupolev TU 95 (and 114, its civilian version) was the only transport aircraft propeller capable of flying at 870 km / h, but without the same opportunities to use "all terrain".
Motors and their interaction with the aircraft were quite innovative engines of the same wing turn in opposing senses. In this way, they cause less fatigue of the wing and cause less imbalance in the event of failure of one of the four turboprop engines. These engines are equipped with propellers to very specific forms. In number of units or a fraction of unity.) 8 blades for gear, they have a form that are reminiscent of pirate swords.
From a versatility never seen before, the engine blocks are nevertheless very difficult to manage for embedded systems with FADEC (Full Authority Digital Engine Control). And it is precisely at this level that is the main problem faced by the A400M. If MTU, one of the engine manufacturers, has recently shown reassuring, no date of first flight has been provided.
Tags: Airbus A400M , Airbus , Full Authority Digital Engine Control , Boeing 787 , American airliner , A400 M , integrate air traffic airliner , C130 , C160 ,
