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Мицубиши се одлучи на големи промени во дизајнот на МРЈ вкл. крилата да ги произведува од алуминиум наместо од композитни материјали.
In a very loud wake up call to Boeing, Mitsubishi Heavy Industries, which makes the carbon fibre wings for its troubled 787 Dreamliner project, has cancelled plans to use composites in major sections of its own MRJ regional jet project, including its wing.
The 787 project was plunged into disarray after a Mitsubishi built wing broke prematurely during a stress test involving a static assembly of the Dreamliner in May.
Mitsubishi is a design and risk sharing partner in the 787 program as well as a new contender in the regional airliner market currently dominated by Embraer of Brazil and Bombardier of Canada.
Its 70-90 seat sized MRJ was due to go into service by 2013, and feature carbon fibre wings and fuselage barrel, making it more than 50% composite by zero fuel weight in order to exploit the lighter weight promised by plastic laminates.
It was to be in a very material way, a mini-787.
However Mitsubishi’s shock announcement overnight says composites will now be restricted to a maximum of around 15% of the structure, mainly in the tail and other areas where composites have been used by jet makers for nearly 30 years.
The 787 project was plunged into disarray after a Mitsubishi built wing broke prematurely during a stress test involving a static assembly of the Dreamliner in May.
Mitsubishi is a design and risk sharing partner in the 787 program as well as a new contender in the regional airliner market currently dominated by Embraer of Brazil and Bombardier of Canada.
Its 70-90 seat sized MRJ was due to go into service by 2013, and feature carbon fibre wings and fuselage barrel, making it more than 50% composite by zero fuel weight in order to exploit the lighter weight promised by plastic laminates.
It was to be in a very material way, a mini-787.
However Mitsubishi’s shock announcement overnight says composites will now be restricted to a maximum of around 15% of the structure, mainly in the tail and other areas where composites have been used by jet makers for nearly 30 years.