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How SpaceX Streamlined the Raptor Engine

Hacker News·about 3 hours ago
#mArIn7Mt
#construction-physics#spacex#starship#photo#englishlanguage
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If you’re reading this, there’s a very good chance you’ve seen this famous image of three iterations of SpaceX’s Raptor rocket engine. The Raptor engine was developed for SpaceX’s Starship spacecraft (the Falcon 9 and Falcon Heavy use the Merlin engine ); it was first test-fired in 2016, first flew on Starhopper in 2019, and first flew on a Starship prototype in 2020 and on the full Starship stack in 2023. Since then, it’s continued to improve, going from the tangle of pipes and wires you can see on the Raptor 1 to the smooth, streamlined design of the Raptor 3, which first flew in May of this year.…

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