SpaceX manufactures between 80 percent and 90 percent of its rockets, engines, electronics, and other parts. It’s a strategy that flat-out dumbfounds SpaceX’s competitors, like United Launch Alliance, or ULA, which openly brags about depending on more than 1,200 suppliers to make its end products. (ULA, a partnership between Lockheed Martin and Boeing, sees itself as an engine of job creation rather than a model of inefficiency.)
