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SpaceX goes all-in on steel Starship, scraps expensive carbon fiber BFR tooling

SpaceX's Port of LA-based BFR development tent is no more after the company presumably decided to scrap the entirety of it and its contents, March 14th. (Pauline Acalin)

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In a wholly unforeseen turn of events, SpaceX has taken the extraordinary step of permanently scrapping both its Port of Los Angeles-based BFR development tent and what seem to be the majority of what it contained, irreparably destroying custom-built tooling meant to support the fabrication of carbon composite BFR spaceships and boosters.

Likely worth anywhere from several to tens of millions of dollars (USD), SpaceX’s advanced BFR production tools were procured from industry-expert Ascent Aerospace sometime in 2017 before being officially delivered to the rocket company’s newly-erected Port of LA tent around April 2018. Situated at the port specifically due to logistical concerns about the high cost of transporting 9m/30ft-diameter objects from SpaceX’s main Hawthorne facilities to a barge for transport east, the company has decided to unequivocally destroy its aerospace-grade composite tooling less than 12 months after accepting delivery. Put simply, this is the best evidence yet that SpaceX – willing or not – has gone all-in on build Starship and Super Heavy out of stainless steel less than six months after CEO Elon Musk began to hint at the program’s utterly radical pivot.

SpaceX’s Port of LA-based BFR development tent is no more after the company presumably decided to scrap the entirety of it and its contents, March 14th. (Pauline Acalin)

From the very beginning of SpaceX and Elon Musk’s serious pursuit of an entirely reusable launch vehicle capable of transporting dozens of astronauts and passengers to and from Earth and Mars, the plan had been to build the vast majority of the rocket’s booster and spacecraft structures out of advanced carbon fiber composite materials. Above all else, this fundamental architecture was motivated largely by the significant performance gains a rocket could achieve by replacing traditional aluminum tanks and structures with carbon fiber.

For a rocket (and especially an orbital spaceship) meant to somehow make Earth-Mars transport both routine and at least minutely affordable, focusing primarily on the optimization of the mass of cargo delivered relative to the empty weight of the spaceship and booster made (and still does make) a great deal of sense. Assuming that the reusability of a system is roughly constant, the only conceivable way to further lower the cost of price per unit of cargo or passenger ticket would be to increase the usable cargo/passenger capacity for each individual launch, making an extremely light and high-performance rocket the low-hanging fruit target.

Musk revealed the first iteration of BFR – known as the Interplanetary Transport System (ITS) – in 2016. Carbon fiber structures featured prominently. (SpaceX)
SpaceX even built a full-scale, 12m/40ft-diameter carbon composite liquid oxygen tank to begin the process of tech development. (Reddit)

The centrality of carbon fiber composites remained with SpaceX’s Sept. 2017 iteration of BFR, downsized by 25% to a diameter of 9m (~30 ft). Around six months later, that commitment to composites was further solidified by the delivery of the first 9m-diameter carbon fiber tooling in March or April 2018. The tooling used to mold and lay up aerospace-grade advanced carbon fiber structures is inherently expensive, demanding extremely low tolerances across massive surface areas and volumes in order to ensure the quality of the equally massive and low-tolerance composite structures they are used to build. Actual prices are often closely guarded and difficult to determine or extrapolate off of, but it’s safe to say that SpaceX likely spent months of effort and at least several million dollars to acquire its large BFR mandrel.

In the subsequent months of 2018, SpaceX’s BFR and composite R&D team spent tens of thousands of hours building out an ad-hoc advanced composites workshop inside a temporary tent in an industrial area, and ultimately managed to build a number of full-scale carbon fiber segments, including at least one large tank barrel section and the beginnings of a tank dome. In September 2018, that progress was partially revealed alongside the announcement that Japanese billionaire Yasuka Maezawa had purchased the first crewed lunar launch of BFR for several hundred million dollars, set to occur no earlier than 2023.

Two months after indicating that the first BFR “airframe/tank barrel section” would be built out of a “new carbon fiber material”, Musk provided the very first teaser for a “counterintuitive” development that would later be identified as the CEO’s decision to wholly replace BFR’s proposed used of composites with stainless steel and an advanced metallic heat shield. Still more than a little controversial and hard to follow almost half a year later, the feeling at the time was that SpaceX’s eccentric leader had decided to throw away more than 24 months of composite BFR design and development work for an almost entirely unproven alternative approach.

For better or for worse, it appears that SpaceX (or maybe just Musk) has quite literally trashed the most concrete demonstration of a prior commitment to advanced carbon fiber composites, scrapping the vast majority of its composite tooling and perhaps even the prototype BFR segments built in 2018.

RIP BFR mandrel and tent, we barely knew ye. (Pauline Acalin)

It remains to be seen whether the now-permanent decision to pursue a stainless steel design in place of carbon fiber was a very expensive mistake, a stroke of genius, or something in between, However, the undeniably brisk progress made with the BFR’s steel variant in last four or so months bodes well – at a minimum – for Musk’s optimism that this radical change will ultimately result in an operational vehicle far sooner (and presumably cheaper) than the composites route.

Generally speaking, it seems safe to – on the face of it – agree with Musk’s argument that steel should ultimately lend itself far more easily to reusability thanks to its high tolerance for extreme temperatures. Unlike Falcon 9’s aluminum structures (and even the most exotic, advanced carbon fiber composites), certain varieties of stainless steel can weather heating approaching that experienced during orbital reentry with minimal erosion or damage to its mechanical properties. As Musk puts it, the Super Heavy booster’s suborbital trajectory could require almost no heat shielding – and perhaps even paint – at all.

Only time will tell whether the inevitably harsher realities of real-life engineering are so kind. In the meantime, SpaceX is perhaps just hours away from the first attempted static-fire test of a Raptor installed on something approaching flight-hardware, in this case a full-scale Starship hop test prototype.

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Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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Elon Musk

Elon Musk launches TERAFAB: The $25B Tesla-SpaceXAI chip factory that will rewire the AI industry

Tesla, SpaceX, and xAI unveiled TERAFAB, a $25B chip factory targeting one terawatt of AI compute annually.

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Tesla TERAFAB Factory in Austin, Texas

Elon Musk took the stage over the weekend at the defunct Seaholm Power Plant in Austin, Texas, to officially unveil TERAFAB, a $20-25 billion joint venture between Tesla, SpaceX, and xAI that he described as “the most epic chip building exercise in history by far.” The announcement marks the most ambitious infrastructure bet Musk has made since Gigafactory 1 in Sparks, Nevada, and it fuses three of his companies into a single, vertically integrated AI hardware machine for the first time.

TERAFAB is designed to consolidate every stage of semiconductor production under one roof, including chip design, lithography, fabrication, memory production, advanced packaging, and testing.  At full capacity, the facility would scale to roughly 70% of the global output from the current world’s largest semiconductor foundry from Taiwan Semiconductor Manufacturing Company (TSMC).

Elon Musk’s stated goal is one terawatt of computing power annually, split between Tesla’s AI5 inference chips for vehicles and Optimus robots, and D3 chips built specifically for SpaceXAI’s orbital satellite constellation.

Tesla Terafab set for launch: Inside the $20B AI chip factory that will reshape the auto industry

The logic behind the merger of these three entities is rooted in a supply chain crisis Musk has been signaling for over a year. At Tesla’s Q4 2025 earnings call, he warned investors that external chip capacity from TSMC, Samsung, and Micron would hit a ceiling within three to four years. “We’re very grateful to our existing supply chain, to Samsung, TSMC, Micron and others,” Musk acknowledged at the Terafab event, “but there’s a maximum rate at which they’re comfortable expanding.” Building in-house was, in his framing, not a strategic option, but a necessity.

The space angle is where the announcement becomes genuinely unprecedented. Musk said 80% of Terafab’s compute output would be directed toward space-based orbital AI satellites, arguing that solar irradiance in space is roughly 5x greater than at Earth’s surface, and that heat rejection in vacuum makes thermal scaling viable. This directly feeds the SpaceXAI vision, which is betting that within two to three years, running AI workloads in orbit will be cheaper than doing so on the ground. The satellites, powered by constant solar energy, would effectively turn low Earth orbit into the world’s largest data center.

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Historically, this announcement threads together every major Musk initiative of the past two years: the xAI-SpaceX merger, Tesla’s $2.9 billion solar equipment talks with Chinese suppliers, the 100 GW domestic solar manufacturing push, the Optimus humanoid robot program, and Starship’s development. TERAFAB is the capstone that ties them into a single coherent architecture — chips made on Earth, launched by SpaceX, powered by Tesla solar, run by xAI, and ultimately extended to the Moon.

“I want us to live long enough to see the mass driver on the moon, because that’s going to be incredibly epic,”Musk said during the presentation.

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Elon Musk

SpaceX is quietly becoming the U.S. Military’s only reliable rocket

Space Force drops ULA for SpaceX on GPS launch after Vulcan rocket anomaly investigation halts flights.

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The U.S. Space Force announced today it is switching an upcoming GPS III satellite launch from United Launch Alliance’s Vulcan rocket to a SpaceX Falcon 9, a move that is as much a reflection of Vulcan’s mounting problems as it is a validation of SpaceX’s growing dominance in national security space launch. The GPS III Space Vehicle 09, originally contracted to fly on Vulcan this month, will now target a late April liftoff on Falcon 9, marking the fourth consecutive GPS III satellite the Space Force has moved to SpaceX after contracts were originally awarded to ULA.

The immediate trigger is a solid rocket motor anomaly that occurred on February 12 during Vulcan’s USSF-87 mission. Although the payloads reached orbit and ULA declared the mission successful, the company characterized the malfunction as a “significant performance anomaly” and has since paused all military launches on Vulcan pending a root cause investigation.

“With this change, we are answering the call for rapid delivery of advanced GPS capability while the Vulcan anomaly investigation continues,” said Systems Delta 81 Commander Col. Ryan Hiserote. “We are once again demonstrating our team’s flexibility and are fully committed to leverage all options available for responsive and reliable launch for the Nation.”

The broader reality is that SpaceX’s reliability record and launch cadence have made it the path of least resistance for the Pentagon, and bodes well with Elon Musk’s plans to IPO SpaceX sometime this year. Its Falcon 9 is the most flight-proven rocket in history, and the Space Force’s Rapid Response Trailblazer program was specifically designed to enable exactly this kind of provider swap for GPS missions, and effectively building SpaceX’s flexibility into the national security launch architecture by design.

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For ULA, the stakes are existential. The company entered 2026 with aspirations of finally turning a corner after years of Vulcan delays, with interim CEO John Elbon pointing to a backlog of over 80 missions as reason for optimism. Meanwhile, SpaceX’s contracts with the Space Force have given it a formal pathway to take on even more national security launches going forward.

The significance of today’s announcement extends beyond one satellite swap. It reinforces that America’s most critical space infrastructure, including GPS, missile warning, and beyond, is increasingly dependent on a single commercial provider.

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Elon Musk

SpaceX’s Starship V3 is almost ready and it will change space travel forever

SpaceX is targeting April for the debut test launch of Starship V3 “Version 3”

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SpaceX is closing in on one of the most anticipated rocket launches in history, as the company readies for a planned April test launch and debut of its next-gen Starship V3 “Version 3”.

The latest iteration of Starship V3 has a slightly taller Super Heavy booster and Starship upper stage than their predecessors, and produce stronger, more efficient thrust using SpaceX’s upgraded Raptor 3 engines. V3 also features increased propellant capacity, targeting a total payload capacity of 200 tons to low Earth orbit with full reusability, compared to around 35 tons for its predecessor. With Musk’s lifelong aspiration to colonize Mars one day, the increased payload capacity matters enormously, because Mars missions require moving massive amounts of cargo, fuel, and eventually, people. But the most critical upgrade may be orbital refueling. SpaceX’s entire deep space architecture depends on moving large amounts of propellant in space, and having orbital refueling capabilities turn Starship from just a rocket into a true transport system. Without it, neither the Moon nor Mars is reachable at scale.

A fully reusable Starship and Super Heavy, SpaceX aims to drive marginal launch costs down and at a tenfold reduction compared to current market leaders. To put that in perspective, getting a kilogram of cargo to orbit today costs thousands of dollars. Bring that number down far enough and space stops being an exclusive domain. That price point unlocks mass deployment of satellite constellations, large-scale science payloads, and affordable human transport beyond Earth orbit. It also means the Moon stops being a destination we visit and starts being one we inhabit.

Elon Musk pivots SpaceX plans to Moon base before Mars

NASA expects Starship to take off for the Moon’s South Pole in 2028, with the ultimate goal of establishing a permanently crewed science station there. A successful V3 flight this spring keeps that timeline alive. As for Mars, Musk has shifted focus toward building a self-sustaining city on the Moon first, arguing that the Moon can be reached approximately every 10 days versus Mars’s 26-month alignment window. Mars remains the horizon, but the Moon is the proving ground.

Elon Musk hasn’t been shy with hyping the upcoming Starship V3 launch. In a social media post on Wednesday, he confirmed the first V3 flight is getting closer to launch. SpaceX also announced its initial activation campaign for V3 and Starbase Pad 2 was complete, wrapping up several days of cryogenic fuel testing on a V3 vehicle for the first time. The countdown is on. April can’t come soon enough.

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