Musk: Falcon 9 to wind down once Starship flies weekly
Musk said SpaceX will shift Falcon 9's engineering and production resources to Starship — winding the rocket down — once Starship is flying reliably several times a week, laying out for the first time a concrete condition for retiring its workhorse launcher.
SpaceX's workhorse Falcon 9 now has a stated retirement condition. In a recent post, Elon Musk said that once Starship is flying reliably several times per week, it makes sense to shift SpaceX's scarce engineering and production resources to Starship — pushing its launch cadence toward multiple flights a day — which he said means winding down Falcon 9.
Falcon 9 currently reuses only its first stage, while Starship is designed for full reusability of both stages — a potential leap in launch cost and turnaround if it proves reliable. The bar Musk set is explicit: consistent, weekly-cadence Starship flights.
The comments follow Musk's disclosure that Starship has moved beyond off-the-shelf 301 stainless steel to a proprietary alloy SpaceX developed in-house, another sign the vehicle's engineering is maturing toward the reliability threshold Musk described.
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