What’s an Aluminum Falcon?

SpaceX-3 Falcon 9 and Dragon at launch pad in April.

The propellant tanks of the Falcon 9 are made from aluminum-lithium alloy while the top and bottom domes of the tanks are aluminum. SpaceX named its rocket after the Millennium Falcon from Star Wars. For the true devotees out there, this Falcon 9, called v 1.1., is an upgraded version of the original. It has the stronger Merlin 1D engines and other updates to the first design.

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