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SpaceX outfits Starship, Super Heavy with dozens of Raptor engines

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New photos shared by SpaceX show that the company has nearly finished installing a total of 39 upgraded Raptor engines on a new Starship and its Super Heavy booster.

Those prototypes – known as Ship 24 and Booster 7 – could be tasked with supporting Starship’s first orbital launch attempt sometime later this year if both make it through upcoming test campaigns without major issues. Whether that’s a probable outcome is still uncertain but recent progress suggests that it won’t take long for the prospects of both prototypes to shift into clearer focus.

After several rounds of proof testing and two trips to and from SpaceX’s Starbase, Texas orbital launch site (OLS) in March, April, and May, Super Heavy Booster 7 (B7) made its third trip to the pad on June 23rd.

“SpaceX used the six weeks Booster 7 spent back in a factory assembly bay to finish installing aerocovers, surfaces known as chines or strakes, car-sized grid fins, Starlink internet dishes, and – most importantly – 33 upgraded Raptor V2 engines. Combined, Booster 7 could produce up to 7600 metric tons (~16.8M lbf) of thrust at or before liftoff. Crucially, SpaceX also finished installing most of Booster 7’s Raptor heat shield in the same period, completing in six weeks work that took Booster 4 closer to half a year. With its heat shield and all 33 Raptors mostly in place, Booster 7 should be ready to kick off static fire testing almost as soon as it’s installed on Starbase’s orbital launch mount.”

Teslarati.com – June 24th, 2022

Booster 7 awaits its next round of tests. (NASASpaceflight – bocachicagal)

Building, qualifying, shipping, and installing 33 new Raptor 2 engines on Super Heavy B7 was already an impressive achievement and produced the most (potentially) powerful rocket booster ever assembled. On July 2nd, a pair of photos published by SpaceX showed off Booster 7’s nearly-finished engine section and simultaneously revealed that the company has finished installing all six of Starship S24’s Raptor engines – and even part of the ship’s aft thermal protection.

Differences are already visible between Ship 24 and Ship 20, the only other Starship prototype to have six Raptors installed. The most notable change is the addition of a metal framework that covers the entire breadth of the ship’s aft – most likely destined to support flat sections of insulation and thermal protection that will partially seal off sensitive engine, plumbing, pressure vessels, and avionics components located inside Starship’s aft. That extra shielding should help limit the extreme conditions that hardware will be subjected to during ground testing and, perhaps, in flight.

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Ship 20, August 2021. (SpaceX – Elon Musk)
Ship 24, July 2022. (SpaceX)

Super Heavy Booster 7 has already completed a significant amount of testing, including four cryogenic proofs (cryoproofs) and one Raptor thrust simulation test. Since its third return to the pad, SpaceX has several more ambiguous tests, none of which appeared to involve cryogenic propellant loading. It’s possible that those tests focused more on Booster 7’s pressurization system, perhaps filling its tanks with the hot oxygen and methane gases it will eventually use to pressurize its tanks. It’s likely that SpaceX wants to put Booster 7 through at least one successful wet dress rehearsal – using real liquid methane and oxygen propellant – before attempting to static fire any of its 33 Raptors. Booster 7’s aft thermal protection system also isn’t entirely complete, so technicians will need to finish installing several more panels before any static fire testing.

SpaceX technicians handle one of the dozens of heat shield panels that will eventually protect Super Heavy B7’s Raptors from themselves. (NASASpaceflight – bocachicagal | July 3rd, 2022)

Alongside B7, Starship S24 has completed a good amount of cryoproof and Raptor thrust simulation testing, which it survived without any irreperable issues. The ship was then returned to an assembly bay on June 9th, where where workers have been installing heat shield tiles, finalizing the ship’s engine section, and completing dozens of other less visible closeout tasks. SpaceX also recently finished modifying one of its two suborbital test and launch mounts for Starship static fire testing, leaving the other mount semi-permanently modified for cryoproof and thrust simulation testing of future prototypes.

SpaceX has requested permission for road closures – each a potential 12-hour test window – on July 5th, 6th, 7th, 11th, and 12th.

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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Tesla job listings hint at 24/7 Robotaxi operations in several states

The job opening is active in several regions, including Austin, Palo Alto, Orlando, Tampa, Doral, Houston, Dallas, Tempe, and Las Vegas, as of writing.

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Credit: Tesla

Tesla seems to be laying the groundwork for a 24/7 Robotaxi service across several states. This was hinted at by a substantial number of interesting Robotaxi-related job listings that have been posted on the company’s Careers website. 

24/7 Robotaxis and Night Shift Specialists

A look at Tesla’s official Careers website shows that the company is currently looking for multiple Robotaxi Fleet Support Specialists for the Night Shift. The listing itself describes a role focused on maintaining vehicles for “smooth 24/7 operations,” hinting at the company’s next steps in its efforts to ramp its autonomous ride-hailing service across several U.S. cities.

“We are looking for a highly motivated and passionate individual to join our Autopilot Fleet Team. As Fleet Support Specialist, you will play a crucial role in ensuring that all our vehicles are in excellent condition at all times, supporting smooth 24/7 vehicle operations,” the job listing read. 

The job opening is active in several regions, including Austin, Palo Alto, Orlando, Tampa, Doral, Houston, Dallas, Tempe, and Las Vegas, as of writing. This suggests that Tesla really is looking at a potential multi-state rollout strategy for its Robotaxi service, likely in the near future.

Musk targets major Robotaxi fleet growth by year’s end

Tesla’s Robotaxi pilot is still in early stages, but CEO Elon Musk recently hinted that substantial updates are coming soon to the Austin and Bay Area programs. Speaking on the All-In podcast, Musk said Tesla aims to expand its Robotaxi fleet to 500 vehicles in Austin and 1,000 in the Bay Area before the end of 2025.

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“We’re scaling up the number of cars to, what happens if you have a thousand cars? Probably we’ll have a thousands cars or more in the Bay Area by the end of this year, probably 500 or more in the greater Austin area,” Musk said. 

With just two months left in the fourth quarter, Tesla’s AI team is facing a busy ramp-up period that could mark the company’s most ambitious real-world test of its autonomous driving program yet.

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Tesla and Samsung SDI in talks over new US battery storage deal: report

The update was related by industry sources and initially reported by South Korean news outlets.

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Credit: Tesla Megapack

Recent reports have suggested that Tesla and Samsung SDI are in talks over a potential partnership to supply batteries for large-scale energy storage systems (ESS). 

The update was related by industry sources and initially reported by South Korean news outlets. 

ESS batteries to be built at Samsung’s Indiana plant

As noted in a report from Korea JoongAng Daily, the demand for energy storage systems has been growing rapidly in North America, thanks in no small part to the surge in AI investments across numerous companies. With this in mind, Tesla has reportedly approached Samsung SDI about a potential battery supply deal.

The deal is reportedly worth over 3 trillion Korean won (approximately $2.11 billion) and will span three years, according to The Korea Global Economic Daily. A battery supply deal with Samsung SDI could make sense for Tesla as the company already has a grid-scale battery, the Megapack, which is perfect for industrial use. Samsung SDI could simply supply cells for the EV maker.

Production of the batteries would reportedly take place at Samsung SDI’s joint venture factory with Stellantis in Indiana, which is currently under construction. Samsung SDI recently announced plans to use part of that plant’s EV lines to produce cells for ESS, with a targeted capacity of 30 GWh by the end of next year.

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Tesla and Samsung’s partnership

At present, only a handful of manufacturers, including Korea’s LG Energy Solution, Samsung SDI, SK On, and Japan’s Panasonic, are capable of producing energy storage-scale batteries domestically in the United States. A Samsung SDI official issued a comment about the matter, stating, “Nothing has been finalized regarding cooperation with Tesla.”

The possible energy storage system deal adds another layer to Tesla’s growing collaboration with Samsung, which is already in line as a partner in the upcoming production of Tesla’s AI5 and AI6 chips. Early sample manufacturing of the AI6 is expected to begin in South Korea, with mass production slated for Samsung’s Texas-based Taylor foundry when it starts operations.

The AI6 chip will power Tesla’s next wave of high-volume projects, including the Optimus humanoid robot and the autonomous Cybercab service. Musk has called the partnership with Samsung a “real collaboration,” adding that he personally plans to “walk the line” at the Taylor facility to speed up progress.

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Elon Musk

Elon Musk maps out Tesla’s AI chip iterations, and they’re pretty nutty

Based on the CEO’s post, it appears that Tesla is already exploring generations as far as AI8.

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Elon Musk recently revealed new details about Tesla’s next-generation AI5 chip while hinting at even more advanced iterations of its custom silicon. 

Based on the CEO’s post, it appears that Tesla is already exploring generations as far ahead as AI8.

Elon Musk teases Tesla’s chip development

In his X post, Musk stated that he had just completed a design review with Tesla’s chip engineers in California and Texas for the company’s upcoming AI5 chip. This was not surprising at all, considering that Musk has been discussing AI5 for quite some time now. What was surprising, however, were his comments that followed.

“And AI6 and AI7 will follow in fast succession. AI8 will be out of this world,” he wrote in his post, adding in a follow-up that his chip design review would be continuing the next day, followed by an Optimus demo review.

Considering that Tesla is currently rolling out a Robotaxi service using cars that are equipped with AI4 chips, some industry watchers have expressed interest in why the company is developing several generations’ worth of silicon for the company’s products. Inasmuch as AI4 might be enough for FSD and the Robotaxi rollout today, however, products such as Optimus might benefit from a more advanced chip. 

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Even AI5 will already be insanely impressive

During Tesla’s Q3 2025 earnings call, Musk described AI5 as “an amazing design” that represents a full evolution from the AI4 chip currently used in its vehicles and data centers. The new hardware, which will be manufactured by both Samsung in Texas and TSMC in Arizona, is expected to deliver up to 40x performance gains compared to its predecessor.

Tesla’s in-house engineering team redesigned the chip from the ground up, removing traditional components such as GPUs and image signal processors to improve efficiency and power måanagement. Musk said the chip now fits within a half-reticle design, calling it “a beautiful chip” into which he’s “poured so much life energy.”

Musk confirmed Tesla’s plan to create an oversupply of AI5 chips that could power not only vehicles but also humanoid robots and data centers. He emphasized that Tesla’s vertically integrated approach, designing both hardware and software, gives it a unique edge in scaling AI applications.

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