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When Elon Musk on August 2, 2024 proudly tweeted a picture of SpaceX’s new Raptor-3 methane-fueled engine, the third iteration of the engine it uses on this Starship/Superheavy rocket, Tori Bruno, the CEO of ULA, looked at the image (to the right) and complained that Musk and SpaceX were touting pictures of a “partially assembled engine.” As Bruno tweeted:
They have done an excellent job making the assembly simpler and more producible. So, there is no need to exaggerate this by showing a partially assembled engine without controllers, fluid management, or TVC systems, then comparing it to fully assembled engines that do.
It turns out that this engine is so advanced that Bruno — the CEO of SpaceX’s best competitor — didn’t understand it. Both Musk and SpaceX’s CEO Gywnne Shotwell immediately responded with images of this same engine operating during hot fire tests. As Shotwell tweeted, “Works pretty good for a ‘partially assembled’ engine :).”
Musk in one of his first tweets describing the engine’s specifications was also right when he described it as “Truly, a work of art.” Look at it. For what is the most powerful rocket engine ever built it looks as streamlined and a simple as the slant-6 car engine I had in my 1969 Plymouth Valient, built long before environmental regulations caused car engines to become incredibly overbuilt and complicated.
This little anecdote illustrates quite starkly how advanced SpaceX is over its competitors. It is now building rocket engines with technology beyond the immediate understanding of the CEO of the United States’ second largest rocket company.
Almost a decade after SpaceX successfully reused a Falcon 9 first stage, and now does it routinely, no other rocket company as yet to do the same, and only one company, Rocket Lab, is doing flight tests in an attempt to eventually do so.
SpaceX has no competition because too many of its competitors are simply not trying to compete. It is both sad and shameful.
Hat tip to reader Rex Ridenoure.