Reply to post: Re: NASA

Watch it again: SpaceX's boomerang rocket lands on robo-sea-barge



What percentage of the booster is built from "off the shelf components"?

A new rocket stage with new tank designs, new engines, and (of course) new landing gear? Not much. You'd probably find some off-the-shelf hardware in the avionics since no one likes to make their own microchips anymore - software's another matter. And I'd bet you'll find a bunch of aerospace-grade fasteners (rivets, bolts, associated hardware like nut plates, etc.) in the Falcon 9 are off-the-shelf. With such a wide range of fastener standards you can usually find anything you want.**

**Usually. 1-inch diameter, 6-inch long bolts made of MP35N are not regularly stocked and vendors lose interest quickly when you only want a dozen, but that's a predicament we backed ourselves into by using a weird bolt.

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