Hmmm .. to admit I'm a bit confused since a friend of mine, who's working at Airbus at the A320 manufacturing line was a "bit upset" since in his words this is a near 100% replica of the A320 senter-section (Sektion 15) ... exactly the same number windows in front of the emergency exit (even if the section itself seems simply cut short by one window length), they have the same size, the configuration of the pressure bulkheads in front of the center wing box is identical .... .
Deino
then he should take a look at the flight manual...
In all seriousness. they do this because its stupid for them to do and the safe thing to do for the low level engineers and sometimes the high level guys who dont have any experiences. but don;t want to make a mistake.
However, there are things that they can not emulate. your friend should worry about those because...well, those things can no be easily emulated so they have to be learned, and those things define the success and failure of a project, a company, and an industry!
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besides, in the long run, a substantial challenger for the Airbus/Boeing Duopoly is good for Airbus and Boeing, and Himself, and the flying public.
For the incumbent, it challenge them to be stay one step ahead of the game, stay alert.
For the flying public: Cheaper tickets.
For Him and his co-workers in the industry, another fool is going to through billions and billions at an industry that is not really profitable and it tightens the labor market for him