Boeing 737 faces tough challenges from its competitors

Interesting read from BBC news regarding Boeing's 737, the world's best-selling commercial aircraft.  It talks about the lean production system that Boeing has employed to manufacture these aircraft, its current status in the soon-to-be-crowded short-haul commercial aircraft market, and its future (new more fuel-efficient engines on the existing platform, or an all new aircraft design like the 787). 

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