The Saturn V Main Engine Returns!

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Check out this very cool article about how laser 3D scanning and 3D printing are being used to fully understand, resurrect, and improve upon the giant engines that carried us to the moon. Cool factoid: The fuel pump for the F1 engine consumed 55,000 shaft HP, more than the main propulsion system for a modern ultra-deep-water drillship.

http://arstechnica.com/science/2013/04/how-nasa-brought-the-monstrous-f-1-moon-rocket-back-to-life/