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by Jon Ostrower on January 30, 2012 in Uncategorised
Building on last Fridays post about unlocking customers to evaluate competing airframers products, I wanted to look a bit closer at thechanges Airbus and Boeing made to develop their respective second generation 777s and A340s. For Boeing, the aircraft maker wouldevolve the 777-200ER and -300 into the the 777-300ER, -200LR and freighter, while Airbus would take its A340-300 and -200 to become theA340-600 and -500.
I went digging into the Flight International archive to find the technical evolution of each model and the structural changes that were requiredfrom their respective baseline designs. The changes to create the longer range A340s were significantly more extensive with its stretchedwingbox, fuselage and revised empennage. With its raised main landing gear, raked wingtip extensions and structural strengthening, the 777, by comparison did not need a fuselagestretch as the original 777-200 and -300 established the airframes for the -200LR and -300ER.October 1996 A340-500/600 soft launch
March 1997 777-200X/300X launch
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Additional details of the 777 and A340s evolution are below the fold.
September 1998
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March 2000
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June 2001
July 2002
January 2004
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