Some of these customers are to be found just up the road, part of the dense engineering conglomeration of this most industrious of towns, but others, such as Boeing Aerospace, for which Pietro Carnaghi has built a machine to shape the top of Delta-4 rockets, are in America.

ECONOMIST: The complications of clustering

In addition to Delta Airlines, US Airways and Virgin America, Gogo is expected to launch ATG-4 service on American Airlines and United's p.s. fleet in 2013.

ENGADGET: Gogo launches next-gen in-flight internet, with better speeds and more capacity