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SpaceX installs Raptor Vacuum engine on first orbital-class Starship
Update: Providing the best views yet of the Raptor Vacuum installation process, SpaceX began installing one of Starship S20’s six engines (one of at least two recently trucked to the launch site) on Monday morning.
It remains to be seen exactly how many engines will be installed on Ship 20 or how many will be ignited during its first static fire test but barring the delivery of more Raptors, signs currently point to an initial test of two engines – one sea-level-optimized Raptor Center (RC) and one Raptor Vacuum with a much larger nozzle. Whenever Ship 20 does fire up those engines, it will be the first static fire of a RVac engine installed on a Starship and the first simultaneous, side-by-side static fire of two different Raptor variants. Since publishing time, SpaceX has cancelled a Tuesday road closure, pushing Starship S20’s first static fire attempt to no earlier than (NET) Wednesday evening.
For the third time in two months, SpaceX has begun installing Raptor engines on its first orbital-class Starship prototype – hopefully for good.
In no uncertain terms, Starship 20’s (S20) path to what could be its last Raptor installations has been about as windy and mysterious as they come. Starship 20 (S20) left the Starbase factory floor for the first time in early August – all six Raptors installed in another program first – for a brief fit check and photo op. After spending about an hour installed on top of Super Heavy Booster 4 (B4), Ship 20 was removed and returned to the build site, where teams removed all six engines and finished wiring and plumbing the vehicle.
Days before the ship’s long-anticipated trip to Starbase’s suborbital launch site for qualification testing, the mount SpaceX prepared for the process quickly had hydraulic rams – used to safely simulate Raptor thrust – were abruptly removed. Starship S20 was then installed on the Pad B mount, where SpaceX proceeded to reinstall six Raptors. Weeks later, after slow heat shield repairs neared completion, SpaceX again removed Ship 20’s Raptors and reinstalled the hydraulic rams it had removed – unused – the month prior. Finally, on September 30th, some seven weeks after the prototype arrived at the suborbital launch site, SpaceX put Starship S20 through its first major test – a lengthy ‘cryoproof’.
Now, ten days after completing a seemingly flawless cryoproof test on its first try, SpaceX has once again trucked multiple Raptors – at least one sea level and one vacuum engine – from the Starbase build site to Starship S20’s suborbital test stand. From the outside looking in, it’s hard not to view the contradictory path S20 took to its first tests – and is still taking to its first static fire(s) – as an unusually visible sign of some kind of internal tug of war or major communication failure between different SpaceX groups or executives.
It’s impossible to determine anything specific beyond the apparent fact that several of the steps taken from Ship 20’s first factory departure to its first cryoproof and static fire tests could have probably been deleted entirely with no harm done and many dozens of hours of work saved. At the end of the day, Starship S20 completed cryoproof testing without issue on the first try and is now seemingly on track to begin its first static fire test campaign later this month.
At the moment, SpaceX has three possible static fire test windows scheduled from 5pm to midnight CDT on Tuesday, Wednesday, and Thursday (Oct 12-14). A similar Monday window was canceled days ago on October 7th, suggesting that more cancellations are probably on the horizon. For now, there’s a chance that Starship S20 – with anywhere from two to all six Raptor engines installed – will fire up for the first time before next weekend. It’s hard to say how exactly SpaceX will proceed. It’s not inconceivable that SpaceX will install all six engines and gradually ramp up to a full six-engine static fire over several tests.
Given that SpaceX has already static fired three Raptor Center (RC) engines on multiple Starship and Super Heavy prototypes, odds are good that Starship S20’s test campaign will be similar – beginning with a three-Raptor static fire, in other words. SpaceX could then add one, two, or all three Raptor Vacuum engines into the fray for one or more additional tests with 4-6 engines total. It’s also possible that suborbital launch mount and pad limitations will prevent more than three engines from firing at once, in which case SpaceX would presumably perform two separate tests of Ship 20’s Raptor Center and Raptor Vacuum engines.
Given that two Raptor variants have never been static fired simultaneously on the same vehicle, it’s hard to imagine that SpaceX won’t also want to perform one or several combined static fires with Raptor Vacuum and Raptor Center engines on Ship 20.
News
Tesla aiming to produce first “legion” of Optimus robots this 2025
Tesla is aiming to start the production of Optimus this year, and its first run will be no joke.
Tesla’s Q1 2025 All-Hands meeting saw CEO Elon Musk share a key update about the company’s most ambitious product yet — Optimus. As per Musk, Tesla is aiming to start the production of Optimus this year, and its first run will be no joke.
Tesla Optimus’ Quick Evolution
Tesla initially announced Optimus during its AI Day event in 2021. At the time, Tesla only had a mockup of the robot and a literal person in a suit to demonstrate what Optimus could look like. By 2022, Tesla had a working prototype of the robot. Optimus’ progress has been rapid since then, with several dozens of the humanoid robots interacting with attendees at the Cybercab’s unveiling last October.
Optimus’ Potential
During the recent All-Hands meeting, Elon Musk reiterated the idea that Optimus could very well be the biggest product of all time, likely being ten times larger than the next-biggest product. Musk also shared an update about Optimus’ production, stating that the first humanoid robot has been manufactured at the Fremont Factory.
A Legion for 2025
When discussing Optimus’ ramp, Musk clarified that Tesla is internally aiming for enough parts to produce 10,000 to 12,000 Optimus robots this year. However, since Optimus is a completely different product, even half of 10,000 units would be a huge victory for Tesla. Tesla also plans to ramp Optimus to a notable degree in 2026, with the company aiming for 50,000 units, or 10 “legions” of humanoid robots, next year.
“So this year, we hopefully will be able to make about 5,000 Optimus robots. We’re technically aiming for enough parts to make 10,000, maybe 12,000, but since it’s a totally new product with a totally new, like everything is totally new, I’ll say we’re succeeding if we get to half go the 10,000.
“But even 5,000 robots, that’s the size of a Roman legion, FYI, which is like a little scary thought. Like a whole legion of robots, I’ll be like ‘whoa.’ But I think we will literally build a legion, at least one legion of robots this year, and then probably 10 legions next year. I think it’s kind of a cool unit, you know? Units of legion. So probably 50,000-ish next year,” Musk said.
Tesla’s Q1 2025 All-Hands Meeting can be viewed below.
News
Tesla Shanghai Megafactory starts exporting Megapacks, first to Australia
Tesla Asia celebrated the Shanghai Megafactory’s first Megapack exports on X.
Tesla has begun exporting Megapack battery systems from its Shanghai Megafactory, with the first shipment departing for Australia on Friday. This marks a key step in Tesla Energy’s expansion into the global energy storage industry, utilizing its new China-based Megafactory to supply several new markets.
Tesla Asia celebrated the Shanghai Megafactory’s first Megapack exports through its official social media account on X.
Tesla Megapacks in Focus
The Tesla Megapack is capable of storing 3.9 MWh of energy, and they are designed for grid use. As per Tesla in its official website, each Megapack battery has enough energy to power an average of 3,600 homes for one hour. The Megapack is designed to be infinitely scalable as well, making it a good fit for large-scale sustainable energy projects.
The Shanghai Megafactory
The Shanghai Megafactory began production in early 2025, a record eight months after its May 2024 groundbreaking. With an initial output of 10,000 units annually, equal to about 40 GWh, the Shanghai Megafactory has the potential to significantly boost Tesla’s battery storage deployments.
As per a report from Xinhua News Agency, Tesla is expecting its energy deployments to rise 50% year-over-year this 2025.
Tesla Leaders on the Shanghai Megafactory
Mike Snyder, vice president of energy and charging at Tesla, previously outlined the potential of the Shanghai Megafactory. “Megafactory gives us the ability to scale production and efficiency. We can lower logistics costs as well as product costs, and grow the business to new markets,” he stated.
The Shanghai Megafactory also seems to be part of Tesla’s efforts to grow its presence in China, which was highlighted by CEO Elon Musk during a meeting with Chinese Premier Li Qiang. During their meeting, Musk reportedly stated that “Tesla is willing to deepen cooperation with China and achieve more win-win results.”
Shark Tank personality and legendary investor Kevin O’Leary roasted former Vice Presidential nominee Tim Walz over his comments regarding Tesla shares earlier this week.
Walz, a Minnesota Democrat, said that he recently added Tesla (NASDAQ: TSLA) to his Apple Stocks app so he could watch shares fall as they have encountered plenty of resistance in 2025 so far. He said that anytime he needs a boost, he looks at Tesla shares, which are down 36 percent so far this year:
If you need a little boost during the day, check out Tesla stock 📉 pic.twitter.com/KBEh6pOZLW
— Tim Walz (@Tim_Walz) March 19, 2025
Walz, among many others, has been critical of Tesla and Elon Musk, especially as the CEO has helped eliminate excess government spending through the Department of Government Efficiency (DOGE).
However, Kevin O’Leary, a legendary investor, showed up on CNN after Walz’s comments to give him a bit of a reality check. O’Leary essentially called Walz out of touch for what he said about Tesla shares, especially considering Tesla made up a good portion of the Minnesota Retirement Fund.
As of June 2024, the pension fund held 1.6 million shares of Tesla stock worth over $319.6 million:
O’Leary continued to slam Walz for his comments:
“That poor guy didn’t check his portfolio and his own pension plan for the state. It’s beyond stupid what he did. What’s the matter with that guy? He doesn’t check the well-being of his own constituents.”
He even called Walz “a bozo” for what he said.
Of course, Walz’s comments are expected considering Musk’s support for the Trump Administration, as the Tesla CEO was a major contributor to the 45th President’s campaign for his second term.
However, it seems extremely out of touch that Walz made these comments without realizing the drop was potentially hurting his fund. While we don’t know if the fund has sold its entire Tesla holdings since June, as a newer, more recent report has not been released yet, it seems unlikely the automaker’s shares are not still making up some portion of the fund.
Tesla aiming to produce first “legion” of Optimus robots this 2025
Tesla Shanghai Megafactory starts exporting Megapacks, first to Australia
Shark Tank’s O’Leary roasts Tim Walz over Tesla stock hate session
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