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SpaceX’s first 33-engine Super Heavy booster reaches full height

After a bit less than three months of work, SpaceX has finished stacking its newest Super Heavy booster. (Starship Gazer)

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Approximately 11 weeks after the process began, SpaceX has finished stacking its newest Super Heavy booster prototype – the first of its kind intended to host 33 new Raptor V2 engines.

Designed to launch Starship’s massive, namesake upper stage part of the way to orbit, Super Heavy is in many ways simpler than Starship but just as complex and unprecedented in others. Ignoring SpaceX’s unusual plans to have boosters land on huge mechanical arms installed on a skyscraper-sized tower, Super Heavy is ‘merely’ a large vertical-launch, vertical-landing liquid rocket booster – the likes of which SpaceX already has extensive experience with through Falcon 9 and Falcon Heavy. What mainly sets Super Heavy apart is its sheer scale.

Measuring around 69 meters (~225 ft) from tip to tail, Super Heavy – just one of two Starship stages – is almost as tall as an entire two-stage Falcon 9 or Falcon Heavy rocket. At nine meters (~30 ft) wide, a single Super Heavy booster – effectively a giant steel tube – should be able to store at least six or seven times as much propellant as Falcon 9 and about two to three times as much as Falcon Heavy. Engine count and peak thrust are similarly staggering.

SpaceX’s newest Super Heavy prototype – Booster 7 (B7) – expands those engine-related capabilities even further. Instead of the 29 Raptor V1 engines installed on Super Heavy B4, Booster 7 is designed to support up to 33 Raptor V2 engines. While the V2 design significantly simplifies Raptor’s design to make it easier to build, install, and operate, it also substantially boosts maximum thrust from around 185 tons (~410,000 lbf) to at least 230 tons (~510,000 lbf). In theory, if Super Heavy B7 is outfitted with a full 33 Raptor V2 engines capable of operating at that claimed thrust level, Booster 7 could theoretically produce at least 40% more thrust than Booster 4. B4, however, has yet to attempt a single static fire.

The fact that SpaceX hasn’t put Booster 4 through a single full wet dress rehearsal (a launch simulation just shy of ignition) or static fire test after more than half a year at the orbital launch site has led many to assume that the prototype is likely headed for premature retirement. With Booster 7 now perhaps just a week or two away from test-readiness, SpaceX finally has a viable replacement capable of both carrying the flame forward and kicking off the qualification of the first prototype designed to use Raptor V2 engines.

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Raptor V1 (right) and V2 (left and center right). (SpaceX/Richard Angle)

Booster 7 features a number of other design changes, including sleeker raceways (external conduits that protect wiring and smaller plumbing); a different layout of the pressure vessels, ‘hydraulic power units,’ and umbilical panel installed on its aft; and significant changes to the aerocovers that slot over that aft hardware. Beyond its Raptor engines, the two next most substantial modifications made to Super Heavy Booster 7 are arguably a pair of strake-like aerocovers and the addition of large internal ‘header’ tanks meant to store landing propellant.

A series of new sharp-edged aerocovers are now expected to slot over the top of two new pairs of five composited-overwrapped pressure vessels (COPVs) that run about a third of the way up Booster 7’s tanks. It’s possible that they will function a bit like strakes, fixed wing-like structures designed to improve aerodynamic stability. In comparison, Super Heavy B4 has four sets of two COPVs spaced evenly around the outside of its engine section.

Super Heavy B7’s apparent aerocover ‘strakes’ look a bit like a poor man’s version of New Glenn’s aft aerosurfaces. (Blue Origin)

Finally, SpaceX appears to have upgraded Super Heavy Booster 7 with a full set of internal header tanks, meaning that it should now be able to store all needed landing propellant in separate tanks. That significantly decreases the amount of pressurization gas required and makes it much easier to ensure that Super Heavy’s Raptor engines are fed with an uninterrupted flow of propellant during complex in-space and in-atmosphere maneuvers. Following SpaceX’s decision to turn Super Heavy’s tank vents into maneuvering thrusters, header tanks should also decrease the chances of liquid propellant being accidentally vented while the booster is in microgravity/free-fall conditions.

With any luck, Super Heavy B7 will be fully assembled and ready for proof testing. It’s very likely that it will take SpaceX several more months to mature Raptor V2’s design into something ready for flight and produce and qualify at least 33 of the engines but in the interim, Booster 7 can hopefully kick off cryogenic proof and wet dress rehearsal testing as early as late March or early April.

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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This signature Tesla feature is facing a ban in one of its biggest markets

The report indicates that Chinese government agencies have concerns “about failure rates and safety issues with the flush design.”

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A signature Tesla feature is under fire in one of the company’s largest markets, as regulators in one EV hot spot are mulling the potential ban of a design the automaker implemented on some of its vehicles.

Tesla pioneered the pop-out door handle on its Model S back in 2012, and CEO Elon Musk felt the self-presenting design was a great way to feel like “you’re part of the future.”

It is something that is still present on current Model S designs, while other vehicles in the Tesla lineup have a variety of handle aesthetics.

How to repair your Tesla Model S Door handle (DIY Kit)

According to Chinese media outlet Mingjing Pro, the company, along with others using similar technology, is facing scrutiny on the design as regulators consider a ban on the mechanism. These restrictions would impact other companies that have utilized pop-out handles on their own designs; Tesla would not be the only company forced to make changes.

The report indicates that Chinese government agencies have concerns “about failure rates and safety issues with the flush design.”

However, EVs are designed to be as aerodynamically efficient as possible, which is the main reason for this design. It is also the reason that many EVs utilize wheel covers, and sleek and flowing shapes.

However, the Chinese government is not convinced, as they stated the aerodynamic improvements are “minimal,” and safety issues are “significantly elevated,” according to The Independent.

The issue also seems to be focused on how effective the handle design is. According to data, one EV manufacturer, which was not specified in the report, has 12 percent of its total repairs are door handle failure fixes.

There are also concerns about the handles short-circuiting, leaving passengers trapped within cars. Tesla has implemented emergency latch releases in its vehicles that would prevent passengers from getting stuck in their cars in cases of electric malfunctions or failures.

However, evidence from the Chinese Insurance Automotive Technology Research Institute (C-IASI) suggests that 33 percent of door handles using this design fail to function after a side impact.

Obviously, Tesla and other automakers could introduce an alternative design to those vehicles that are affected by the potential restrictions China intends to impose. The regulation would take effect in July 2027.

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Tesla is bailing out Canadian automakers once again: here’s how

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(Credit: Tesla)

Tesla is bailing out Canadian automakers once again, as some companies in the country are consistently failing to reach mandated minimum sales targets for emission-free vehicles.

Many countries and regions across the world have enacted mandates that require car companies to sell a certain percentage of electric powertrains each year in an effort to make sustainable transportation more popular.

These mandates are specifically to help reduce the environmental impacts of gas-powered cars. In Canada, 20 percent of new car sales in the 2026 model year must be of an emissions-free powertrain. This number will eventually increase to 100 percent of sales by 2030, or else automakers will pay a substantial fine — $20,000 per vehicle.

There is a way companies can avoid fines, and it involves purchasing credits from companies that have a surplus of emissions-free sales.

Tesla is the only company with this surplus, so it will be bailing out a significant number of other automakers that have fallen short of reaching their emissions targets.

Brian Kingston, CEO of the Canadian Vehicle Manufacturers’ Association, said (via Yahoo):

“The only manufacturer that would have a surplus of credits is Tesla, because all they do is sell electric vehicles. A manufacturer has to enter into an agreement with them to purchase credits to help them meet the mandate.”

Tesla has made just over $1 billion this year alone in automotive regulatory credits, which is revenue acquired from selling these to lagging car companies. Kingstone believes Tesla could be looking at roughly $3 billion in credit purchases to comply with the global regulations.

Tesla still poised to earn $3B in ZEV credits this year: Piper Sandler

Automakers operating in Canada are not putting in a lack of effort, but their slow pace in gaining traction in the EV space is a more relevant issue. Execution is where these companies are falling short, and Tesla is a beneficiary of their slow progress.

Kingston doesn’t believe the mandates are necessarily constructive:

“We’ve seen over $40 billion in new investment into Canada since 2020 and all signs were pointing to the automotive industry thriving. Now the federal government has regulations that specifically punishes companies that have a footprint here, requiring them to purchase credits from a company that has a minimal (Canadian) footprint and an almost nonexistent employee base.”

Kingston raises a valid point, but it is hard to see how Tesla is to blame for the issue of other car companies struggling to bring attractive, high-tech, and effective electric powertrains to market.

Tesla has continued to establish itself as the most technologically advanced company in terms of EVs and its tech, as it still offers the best product and has also established the most widespread charging infrastructure globally.

This is not to say other companies do not have good products. In my personal experience, Teslas are just more user-friendly, intuitive, and convenient.

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Tesla ditches key Cybertruck charging feature for very obvious reason

“Wireless charging something as far off the ground as the [Cybertruck] is silly.”

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Credit: Tesla

Tesla is officially ditching the development of a key Cybertruck charging feature, and the reason is very obvious, all things considered.

The Cybertruck is among the most unique vehicles available on the market, and, like all Tesla vehicles, it has continued to improve through Over-the-Air software updates that enhance performance, safety, and other technological features.

However, the development of some features, while great on paper, turns out to be more difficult than expected. One of these features is the presence of wireless charging on the all-electric pickup, a capability Tesla has been working to integrate across its entire vehicle lineup.

Tesla wireless charging patent revealed ahead of Robotaxi unveiling event

Most people who have used wireless charging for their phones or other devices have realized it is not as effective as plugging into a cord or cable. This is even relevant with Tesla vehicles, as the introduction of wireless charging for smartphones within the vehicles has been a nice feature, but not as impactful as many would hope.

It’s not necessarily Tesla’s fault, either. Wireless charging is a complex technology because much of the energy intended to be transferred to the phone is lost through heat.

Instead of the energy being stored in the battery, it is lost on the outside of the phone, which is why it becomes warm to the touch after sitting on a charging mat.

This is something that Tesla is likely trying to resolve with its vehicles before rolling out inductive charging to owners. The company has confirmed that it is working on a wireless charging solution, but it has yet to be released.

However, this feature will not be coming to the Cybertruck. Wes Morrill, the Cybertruck’s lead engineer, said that the vehicle’s height makes wireless charging “silly,” according to Not a Tesla App:

“Wireless charging something as far off the ground as the CT is silly.”

This is something that could impact future vehicle designs; the Cybertruck might not be the only higher-ground clearance vehicle Tesla plans to offer to customers. Therefore, being transparent about a design’s capabilities, or even developing technology that would enable this, would be useful to potential buyers.

At this point, wireless charging seems like it would be more advantageous for home charging than anything.

Due to its current inefficiency, it would likely be a great way to enable seamless charging in a garage or residential parking space, rather than something like a public charger where people are looking to plug and go in as little time as possible.

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