The Raptor 3 engine has much better performance than the previous two rocket engines, and yet it looks much simpler. Typically things seem to need to get more complicated in order to get better. The trend seems to have been reversed here. Why?
Because a lot of the tubing is now a part of the main body because the engine is being 3D printed, allowing them to create internal channels for all the fluids. But also by removing some stuff
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