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SpaceX’s fourth Falcon booster delivery this year hints at rare production uptick
For at least the fourth time in 2021, SpaceX has shipped a new Falcon booster from its Hawthorne, California headquarters and factory to an expansive test and development campus in Central Texas.
By all appearances, SpaceX’s latest delivery could imply that the company is on track to experience its first Falcon booster production uptick in four years. Thanks almost exclusively to the overwhelming success of Falcon reusability, SpaceX has been decreasing booster production year over year since 2017 while (on the whole) still significantly increasing its annual launch cadence. However, that downward booster production trend may have finally come to an end in 2021.
On July 21st, spaceflight journalist Eric Berger spotted a SpaceX Falcon booster – almost impossible to miss on the road – traveling eastbound towards El Paso on a Texas highway. Designed from the start with a maximum diameter (3.6m/12′) explicitly limited to allow Falcon 9 and Falcon Heavy stages to be easily and cheaply transported by road, SpaceX has taken advantage of that capability by making Falcon rockets some of the most extensively tested launch vehicles on Earth.
Most notably, every single Falcon 9 and Falcon Heavy booster and upper stage SpaceX has ever built at its Hawthorne HQ has shipped to McGregor, Texas for qualification testing before being cleared to launch. The exact nature of that qualification testing is unknown but, at minimum, every SpaceX-built stage must eventually complete a clean static fire test before the company deems it qualified for flight and ships it to one of three launch pads.
Before integrated static fire testing, SpaceX also separately tests every single Merlin 1D, Merlin Vacuum, Draco engine, and cold gas thruster before they’re installed on their respective Falcon first stage, second stage, fairing, or Dragon spacecraft back in California. However, Falcon engines, fairings, second stages, and Dragon spacecraft are all small or well-packaged enough to be unassuming on the road. Only Falcon boosters – measuring some 4m (~13 ft) wide and 56m (~190 ft) long and usually wrapped in solid white or black plastic – are routinely spotted in the wild by members of the public.
Those regular public spottings provide the only real glimpse available behind the curtain of SpaceX’s prolific rocket production. Beyond a mishmash of observations from members of the public and the occasional tidbit from CEO Elon Musk, SpaceX – a private company in a very competitive industry – provides no official information about how many Falcon stages it produces each year. That leaves it up to unaffiliated fans to collate and track that activity.
In particular, one Reddit user went to the effort of combing through a decade of those observations to tabulate SpaceX’s annual Falcon first stage production – including Falcon 9 and Falcon Heavy boosters – since 2010. From 2010 to 2017, booster production consistently grew year over year, ultimately peaking at 13 – more than one booster per month – in 2017. Since 2017, booster production has consistently declined, dropping to just five boosters completed in 2020 – the lowest figure since 2013.
Of course, despite building just five new boosters in 2020, SpaceX completed a record 26 Falcon 9 launches, demonstrating just how much of a paradigm shift booster reusability has been for the company. Notably, while booster production has drastically decreased, SpaceX still has to manufacture a new expendable upper stage for every Falcon launch, meaning that – for the most part – Hawthorne is likely as busy as – and soon to be busier than – it was around the 2016-2018 peak.
In a bit of twist, though, that booster production downtick may have bottomed out in 2020. Since May 2020, SpaceX appears to have shipped at least 8 or 9 boosters* from Hawthorne to McGregor. Less than a month ago, a new booster – believed to be Falcon 9 B1069 – went vertical in McGregor ahead of its first wet dress rehearsal and static fire. Less than three weeks later, another new Falcon booster was spotted ready for transport outside of Hawthorne – likely the same booster spotted on its way to McGregor on July 21st.
*Including F9/FH boosters B1061, B1062, B1063, B1064, B1065, B1066, B1067, and B1069
In 2021, SpaceX has delivered one Falcon Heavy (likely B1066) and two Falcon 9 boosters (B1067 and B1069) to McGregor. The mystery booster seen in Hawthorne on July 18th – now likely inside a McGregor hangar as of publishing – is the fourth Falcon first stage to roll out of Hawthorne this year. If SpaceX maintains that average over the next five months, it could ship 6 or even 7 Falcon boosters in 2021 – marking the first apparent production uptick since 2017.
SpaceX is preparing for the 13th integrated flight test of its Starship system, with a targeted launch as early as Thursday, July 16. The 90-minute launch window opens at 5:45 p.m. CT from Starbase in South Texas.
This comes roughly seven weeks after Flight 12 on May 22, underscoring the company’s accelerating pace in its rapid development campaign. The mission will use the latest Starship and Super Heavy V3 vehicles equipped with Raptor 3 engines. Booster 20 will attempt a controlled boostback burn, followed by a splashdown in the Gulf of Mexico, while Ship 40 will follow a suborbital trajectory.
Starship’s thirteenth flight test is preparing to launch as early as Thursday, July 16 → https://t.co/Rp7VwBzpWx pic.twitter.com/jdpFlQUEpF
— SpaceX (@SpaceX) July 11, 2026
Key objectives for Flight 13 will include demonstrating reliable stage separation, engine performance under various conditions, and controlled reentry.
A major milestone for Flight 13 is the first deployment of 20 next-generation Starlink V3 satellites. These satellites feature advanced laser links for inter-satellite communication, deployable solar arrays, and onboard cameras, six of which will capture imagery of Starship’s heat shield during flight.
Several heat shield tiles on Ship 40 will be painted white to serve as imaging targets, while additional experiments test upgraded tiles on aft flaps, modified attachments on the aft skirt, and load-sensing tiles to measure stresses. The upper stage will also attempt a single Raptor engine relight in space before a targeted splashdown in the Indian Ocean.
These tests build directly on lessons from Flight 12, which introduced the V3 configuration but encountered issues including a booster flip anomaly during boostback and an engine-out event on the ship. Hardware and software modifications on Booster 20 and Ship 40 aim to improve engine relight reliability, startup sequencing, and overall robustness.
Next Starship launch aiming for Thursday https://t.co/SajPPd4pdb
— Elon Musk (@elonmusk) July 12, 2026
The short interval between Flights 12 and 13 highlights SpaceX’s iterative approach. Elon Musk has repeatedly emphasized that Starship launches will become “incredibly common” in the coming years.
The company envisions scaling to rates as high as one launch per hour within 4-5 years, potentially enabling thousands of flights annually. Such cadence is essential for Starship’s goals: establishing orbital refueling for lunar and Mars missions, deploying massive satellite constellations, and making life multiplanetary.
With each flight, Starship edges closer to full reusability and operational maturity. Success on July 16 would mark another step toward routine access to space and the ambitious vision of humanity becoming a spacefaring civilization.
Tesla shared a striking video showcasing the decommissioning of the original Model S and Model X assembly line at its Fremont Factory in Northern California. Completed in just 46 days, the teardown involved heavy machinery dismantling concrete pits, removing robotic arms and conveyors, and clearing the space for new production.
The post, captioned “End of an era,” captured both the end of a historic chapter and Tesla’s aggressive pivot toward its next major initiative, Optimus.
End of an era: Decommissioning the original Model S & X assembly line in just 46 days pic.twitter.com/kGEdfhl62h
— Tesla Manufacturing (@gigafactories) July 10, 2026
The decision to retire the Model S and Model X originated during Tesla’s Q4 2025 Earnings Call in late January 2026. CEO Elon Musk announced that production of the company’s flagship sedan and SUV would wind down by the end of Q2 2026, describing it as bringing the programs to an “honorable discharge.”
Custom orders ceased around early April 2026, with the final vehicles rolling off the line in early May. A special signature delivery ceremony on May 20 marked the emotional close for these vehicles, which had defined Tesla’s early success and luxury EV segment since the Model S launch in 2012.
The primary reason for tearing down the lines was to repurpose the valuable factory floor space for high-volume production of Tesla’s Optimus humanoid robot. Musk had indicated on Earnings Calls that the Fremont S/X line would be replaced by a dedicated Optimus manufacturing line targeting a capacity of one million units per year.
This move aligns with Tesla’s broader strategic shift from traditional vehicle manufacturing toward robotics and artificial intelligence, leveraging the company’s expertise in autonomy, AI training, and high-volume production.
Optimus, Tesla’s general-purpose humanoid robot, is designed to perform repetitive or dangerous tasks in factories, warehouses, and eventually homes. Powered by Tesla’s AI and Neural Networks, it aims to be a versatile, affordable platform. Production of Optimus Gen 3 is already underway in limited form at Fremont, with full-scale output on the converted line expected to begin in late July or August.
Tesla is targeting rapid scaling, with internal ambitions pointing toward tens or even hundreds of thousands of units annually by the end of 2026.
Longer-term, Tesla is constructing a much larger second-generation Optimus facility at Giga Texas, with potential capacity reaching millions of units per year. The company views Optimus as a transformative product that could eventually surpass its automotive business in scale and value, enabling widespread deployment of useful robots across industries. CEO Elon Musk has even predicted it would be the most popular product of all-time.
As one era closes at Fremont, another is rapidly taking shape.
Elon Musk posted a candid admission on his social media platform X on June 9, declaring that he had been “clearly wrong” about Anthropic. The statement marked a notable reversal from his earlier skepticism toward the AI company.
In September, Musk had written, “Winning was never in the set of possible outcomes for Anthropic,” reflecting his view at the time that the startup had lacked the foundation or even the trajectory to succeed in what is an incredibly intense race for advanced artificial intelligence.
Musk’s latest post came amid discussion of Anthropic’s reliance on external compute resources. He praised the company’s progress, stating that Anthropic is “obviously currently the leader in AI” and that “no company has released a model as good as Mythos/Fable,” with expectations of a strong follow-up in Mythos 2.
The tone shifted dramatically from dismissal to acknowledgement of superior performance.
I was clearly wrong about Anthropic. They are obviously currently the leader in AI. No company has released a model as good as Mythos/Fable and they will undoubtedly have Mythos 2 ready soon.
And I would never cut them off in a way that hurt them badly, even as a competitor.…
— Elon Musk (@elonmusk) July 9, 2026
The context of Musk’s comments added significance. Anthropic has been operating under a recent compute deal with SpaceXAI, Musk’s AI infrastructure-focused venture. The pair entered a short-term GPU lease agreement initiated in May, providing Anthropic access to critical computing power for training and deploying its frontier models.
SpaceXAI signs agreement with Anthropic for massive AI supercomputer access
Some observers had speculated that Musk could leverage this dependency to disadvantage a rival. Musk directly addressed the possibility, writing, “I would never cut them off in a way that hurt them badly, even as a competitor. That’s not my style.”
To support his commitment to ethical competition, Musk referenced concrete examples from his other companies. Tesla famously open-sourced its entire portfolio of electric vehicle patents in 2014. The move was designed to accelerate the global adoption of sustainable transportation technology rather than protect proprietary advantages.
Tesla also made its Supercharger network available to competing electric vehicle manufacturers, transforming what could have remained an exclusive charging ecosystem into a shared infrastructure that benefits the broader industry and reduces barriers for EV adoption.
Musk further pointed to SpaceX’s practices, noting that the company launches satellites for competing commercial systems “with no increase in price or use of unfair terms.” He extended the principle to his social platform, observing that “even my worst enemies attack me on this platform,” underscoring preference for open discourse over retaliation.
These examples have illustrated Musk’s long-standing philosophy that long-term technological progress is best served by open competition and infrastructure sharing rather than leveraging market power to stifle rivals. In the fast-evolving AI sector, where compute resources and model capabilities determine leadership, Musk’s stance suggests a willingness to compete on innovation and performance alone.
Musk’s admission arrives as SpaceXAI itself advances its own frontier models while maintaining business relationships across the ecosystem. By publicly correcting his earlier assessment and reaffirming principles of fair play, Musk highlights a model of competition that prioritizes advancement of the field over short-term tactical advantages.
SpaceX reveals Starship Flight 13 launch date
Tesla shows rapid teardown of Model S and X lines, paving the way for Optimus at Fremont
