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SpaceX to attempt to crush Starship test tank

SpaceX is preparing to subject Super Heavy tank B7.1 to a test that will essentially try to crush it. (Starship Gazer)

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3 years ago

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A week after rolling a different ‘test tank’ from its South Texas Starship factory to nearby launch and test facilities, SpaceX has moved a second test tank to the pad.

Hearkening back to a period in 2020 where SpaceX built and tested six different Starship test tanks in a period of six months, the company appears to be preparing to test another batch of tanks in the hopes of qualifying Super Heavy booster design changes and clearing the way for a significant upgrade to all Starship tank domes. The sequencing of the latest tank raises some questions, however.

Known unofficially as the “EDOME” tank in reference to a cryptic label on the side of one of its halves, the first new test tank’s purpose is much more cut and dry. While its steel rings appear to be unchanged from current Starship and Super Heavy prototypes, the tank’s two domes share almost nothing in common with the dozens of domes SpaceX has built and tested over the last three years of development. The new domes are much simpler and should be easier to manufacture than the domes SpaceX is familiar with. Thanks to their more spherical shape, they should also be more efficient, allowing future Starship tanks to store a bit more propellant while taking up the same amount of vertical space. SpaceX has yet to begin testing the EDOME tank since its June 8th rollout and does not appear to be much closer to starting 12 days later.

On June 16th, SpaceX rolled a second test tank to the launch site, which eventually joined the EDOME tank at a staging area that used to be a Starship landing pad. Whereas the EDOME tank is more of a generic test article, the second tank – known as B7.1 – is specifically designed to test Super Heavy booster design changes.

B7.1 is a bit like a miniature Super Heavy. Its three-ring top section is mostly similar to the top section of a booster and is reinforced with dozens of external stringers. Oddly, it is missing cutouts for grid fins, and the tank’s forward dome does not have the reaction frame those hypothetical grid fins would anchor to. On the tank’s bottom half, the same stringers are present, and the tank features a new design that squeezes four slightly shorter rings into the same height as three. The Super Heavy thrust dome those rings enclose is also a new design that expands the number of central Raptor engines from 9 to 13.

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It’s unsurprising that SpaceX wants to test those significant design changes. SpaceX did technically conduct a similar test in mid-2021 with a test tank known as BN2.1, but that tank featured a thrust dome with room for 9 older Raptors that would have generated about ~1700 tons of thrust. B7.1’s testing will go a step further than BN2.1 and use a structural test stand that should allow SpaceX to simulate the compressive forces Super Heavy boosters might experience in flight, adding another dimension of stress on top of the 13 hydraulic rams that will simultaneously subject the test tank to the equivalent of ~3000 tons (~6.6M lbf) of thrust.

What is surprising, however, is the fact that SpaceX has waited so long to build and test a tank like B7.1. SpaceX has already completed an entire Super Heavy booster (B7) with all the design changes B7.1 is meant will test and recently installed 33 new Raptor 2 engines on that prototype. A second upgraded booster, B8, is also nearly finished. In that sense, B7.1 is quite unusual and feels more like a reluctant afterthought than part of a methodical development process. If B7.1 suffers an unintentional failure during testing, SpaceX could be forced to abandon two nearly-finished Super Heavy boosters, wasting months of assembly and testing and rendering prototypes that are likely worth tens of millions of dollars all but useless.

B2.1 demonstrates how the ‘can crusher’ uses giant ropes and hydraulics to apply immense compressive forces to Starship tank prototypes. (NASASpaceflight – bocachicagal)

The design changes B7.1 is meant to test are not exactly radical, but it’s still unclear why SpaceX has chosen to conduct those tests after building two entire Super Heavy boosters. Earlier on in Starship development, SpaceX regularly used test tanks to qualify significant design changes before applying those changes to full prototypes, limiting the amount of resources that could be wasted on any unproven prototype. Thankfully, Super Heavy Booster 7 may have already completed similar Raptor thrust simulation tests on the same test stand B7.1 was recently installed on, meaning that SpaceX’s confidence may have been well-placed. However, if the first use of the ‘can crusher’ stand on a Super Heavy test tank finds any problems or ends in failure, B7 and B8 could still be easily rendered unusable or incapable of flight, significantly delaying Starship’s first orbital launch attempt.

Lately, SpaceX has been focused on preparing Starship S24 and Super Heavy B7 for static fire tests that could eventually qualify the pair to support the first orbital test flight. It’s not clear if or when SpaceX will be able to set aside time and evacuate Starbase’s busy orbital launch site to test B7.1 or the EDOME tank.

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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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Tesla Robotaxi riders tout ‘smooth’ experience in first reviews of driverless service launch

The first reviews of Tesla Robotaxi are in, and those riders are impressed and astounded with the smooth and comfortable nature of the service.

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58 seconds ago

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June 23, 2025

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Credit: Joe Tegtmeyer | X

Tesla Robotaxi riders are touting their awesome experiences in their first rides using the automaker’s new driverless ride-hailing service, which launched to a limited number of people yesterday for the first time.

On Sunday, Tesla officially launched Robotaxi, its driverless ride-hailing service, in downtown Austin. A select group of people were chosen to receive early access to the program, as well as the new Robotaxi app, which is used to request a ride and will sync everything from climate preferences to streaming settings with each pickup.

Tesla officially launches Robotaxi service with no driver

Teslarati gained access to the Early Access riders program and the Robotaxi app, giving us a first-hand look at the experience. We will be in Austin soon to test out the Robotaxi fleet for ourselves.

However, those who were there for the initial rides on Sunday had nothing but great things to say. Hundreds of rides were taken during the first hours of the Robotaxi program, and neither the company nor the riders reported any issues.

Here’s what people said about their experiences:

  • “Extremely smooth stops,” and great awareness of road conditions, including pedestrians, speed bumps, and busy parking lots, were all handled with ease:

  • Safe navigation around pedestrians who walked just off the sidewalk into the road:

  • “Just as good as it is during the daytime” at night. There were no changes to report by riders who took rides during the day and evening:

  • Avoided expensive and stressful parking at local tourist hotspots like Terry Black’s Barbeque:

  • “Comfortable and similar to existing Tesla cars with FSD,” intuitive and “surreal” experience:

  • The app is quicker than other ride-sharing services. When a destination is chosen, Robotaxi is already on the way to your location:

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Tesla Robotaxi rollout proves that Elon Musk still delivers, even if it’s late

Tesla is also still the company that makes the impossible feel late.

Published

3 hours ago

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June 23, 2025

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Credit: Tesla

It took a long time, but Tesla has finally successfully rolled out its dedicated Robotaxi service in Austin this weekend. The initial rollout only involved a small fleet of cars operating in a small geofenced area in Texas, but it is still significant. 

It does, if any, prove that Elon Musk is still capable of delivering on his promises, even if they are late. Tesla is also still the company that makes the impossible feel late.

Finally, a Rollout

Elon Musk has been predicting a Robotaxi rollout for years, so much so that even avid Tesla supporters have grown quite wary of his constant predictions. After a while, Elon Musk himself admitted that he has become the boy who cried FSD, though he still maintained that self-driving was really just around the corner.

This past weekend, Musk’s predictions finally came true. Actual paying customers used Tesla’s dedicated Robotaxi service for a small flat fee of $4.20 per ride. Elon Musk seemed quite happy with the Robotaxi’s initial launch, as evidenced by his congratulatory message to the Tesla AI team on X.

https://twitter.com/elonmusk/status/1936876178356490546
https://twitter.com/aelluswamy/status/1936865682810946035

No More Tesla Vision Debates

One thing that is evident in Tesla’s initial Robotaxi rollout in Austin was the fact that the debate surrounding Tesla’s vision-only approach is completely gone now. With actual Robotaxis operating around Austin, there are no more questions about whether cars can navigate city streets on their own using only AI and cameras. They can, and safely too, at least based on Tesla’s initial fleet of Robotaxis.

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https://twitter.com/ItsKimJava/status/1936927640268484909
https://twitter.com/SawyerMerritt/status/1936997202880081950

The Beauty of Normalcy

The Robotaxi rides from Tesla owners who were fortunate enough to experience the first driverless rides from the EV maker’s fleet were quite uneventful. Comments on social media platforms such as X observed that the Robotaxis operated safely and cautiously, and their driving was actually smoother than some human drivers. 

That may not sound very exciting at all, but that’s the beauty of it. Tesla’s Robotaxi service is designed to look and feel natural to people. And so far, it appears that Tesla is accomplishing this with its Robotaxi rollout.

https://twitter.com/DrKnowItAll16/status/1936992009685700663
https://twitter.com/DirtyTesLa/status/1936999390100496443
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Tesla officially launches Robotaxi service with no driver

Tesla launches its driverless Robotaxi in Austin, marking the first time the company has offered its ride-hailing service anywhere in the world.

Published

20 hours ago

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June 22, 2025

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Credit: Tesla

Tesla has officially launched its Robotaxi service platform with no driver in Austin, Texas. This is the first time Tesla has allowed driverless Robotaxis to pick up members of the public and take them around via the ride-sharing service the company has been developing for several years.

Teslarati had a first-hand look at the launch of the Robotaxi service in Austin, as we are part of the Early Access group, which is a limited group of people that will be able to hail a driverless Model Y in the geofenced area in Texas.

The Robotaxi platform is currently geofenced in a small portion of South Austin. It is roughly thirty minutes from end to end, and Tesla’s strategy is prioritizing safety through a number of safeguards that are implemented in this early program.

There is a fixed price of just $4.20 for any ride, regardless of duration, at this time. This will not always be the case, however. When a wider customer base is allowed to hail Robotaxis, ride fares will vary on things like travel distance, length of trip, and potentially time of day.

The first rides kicked off at around 2 p.m. local time in Austin. They are confined to the back row of the Model Y, while a Tesla safety monitor sits in the passenger seat. Passengers will have their personal media and streaming settings available to them as the car will sync with their driver profiles.

Rides are requested through a Robotaxi addition on the regular Tesla iOS app:

The safety monitor is only there to ensure things go smoothly with each ride. They do not have pedals or a steering wheel on their side. The car is doing everything during these Robotaxi rides.

The big takeaway from Robotaxi’s launch is that Tesla will begin generating additional revenue through this new stream. As concerns over demand and annual growth rate continue to take focus from doubters, Tesla’s continuous rollout of the Robotaxi fleet will expand potential revenue opportunities, potentially creating billions upon trillions of dollars in value.

This is something Tesla permabulls like Cathie Wood of ARK Invest and Dan Ives of Wedbush have talked about for years: the launch of a driverless Robotaxi fleet that generates new income streams for Tesla.

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