February 9, 2023

100th Merlin 1D engine flies on Falcon 9 rocket

February 22, 2015

Depending on how you count it, SpaceX launched its 100th kerosene-fueled Merlin 1D rocket engine on a Falcon 9 rocket Feb. 11, underscoring what it says is an accelerated flight regime for the centerpiece of the company’s propulsion shop.

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