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SpaceX crushes rocket engine world record during Raptor test

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CEO Elon Musk has revealed that SpaceX crushed a global rocketry record during a recent Raptor engine test, pushing the crucial Starship component past years-old performance targets.

On August 17th, the SpaceX CEO unexpectedly released a photo of a Raptor test and a corresponding graph showing the engine’s chamber pressure, confirming that the company had successfully pushed the engine to record-breaking levels. Musk says that an unspecified Raptor – possibly serial number 39 (SN39) – briefly reached a main combustion chamber pressure of 330 bar (~4800 psi) during a controlled burn – and remained intact after shutdown.

Outside of subscale laboratory tests, the highest main combustion chamber known to full-scale, orbital-class rocketry was achieved by the Soviet Union in the 1980s with the RD-701 engine. Although the exceptionally unique engine was canceled before it could be used, it reportedly reached pressures of 290-300 bar in one mode of operation. Now, however, SpaceX and its Raptor engine appear to be the new world record holders – and by a huge margin.

SpaceX’s Raptor engine (right) appears to have stolen the crown of RD-701, a ~35-year-old Soviet engine and technological marvel. (SpaceX)

Raptor’s new crown comes roughly 18 months after Elon Musk revealed that the engine had beaten the Soviet RD-270 full-flow staged combustion (FFSC) with a higher sustained chamber pressure (~257 bar vs 255 bar). A few days later, the same Raptor went even further, cresting the Russian RD-180 engine’s 257 bar operating pressure with a peak of 268 bar. Still, SpaceX needed 6-12 more months to refine Raptor into an engine capable of operating even close to those pressures for more than ~10 seconds. In July and August 2019, Raptor engine SN6 flew twice on Starhopper, culminating in a ~60-second, 150-meter hop that ended with the engine nearly destroying itself seconds before landing.

Almost exactly one year later, Raptor SN27 launched on Starship SN5 on the same 150m trajectory and appeared to perform flawlessly. Exhibiting barely a stutter or flare, SN27 never came close to the flamethrower-like death throes Raptor SN6 suffered in August 2019. In short, SpaceX continued to do what SpaceX does best, continuously refining rough prototypes into increasingly polished end products.

Originally revealed in 2016 as a methane/oxygen full-flow staged combustion engine with an operating combustion chamber pressure of 300 bar (4350 psi), Raptor’s August 17th achievement means that SpaceX has already exceeded one of its performance goals. Of course, combustion chamber pressure is significant but still far less important than engine longevity, burn duration limits, and reusability in the context of Starship. SpaceX likely wouldn’t be pushing the envelope of chamber pressure if it wasn’t confident about Raptor’s many other important attributes, but it’s still unknown if Raptor has ever burned for longer than ~90 seconds.

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Regardless, if Raptor can actually sustain chamber pressures of 330 bar without damaging itself, the milestone could mean that SpaceX has already boosted Raptor’s maximum thrust from ~200 metric tons to ~225 metric tons (440,000-500,000 lbf. For Starship and Super Heavy, that 10% increase in thrust could easily translate to a 5-10% increase in payload to orbit per launch.

A senior SpaceX engineer and executive believes that Starship’s first orbital launch could still happen by the end of the 2020. (SpaceX)

To reach orbit, though, Raptor still has a ways to go. For Super Heavy to be able to complete a normal launch, SpaceX will need to dramatically expand Raptor production (~31 engines per booster) and ensure that Raptor can reliably operate for 3-5+ minutes and reignite multiple times in flight. For Starship, SpaceX needs – at the minimum – to mature Raptor until it can burn continuously for 5-10 minutes to reach orbit. The company will likely also need to finish developing a custom vacuum-optimized version of Raptor for efficient orbital Starship flights.

Given just how quiet SpaceX is about most Raptor milestones, there’s a chance the company has already made substantial progress along those lines. For example, Starship SN8 – already well on its way to completion – will likely be the first prototype to fly with three Raptor engines and will need the ability to stop and start those engines in-flight to perform full-fidelity 20 km (~12.5 mi) launch and landing tests. Even just sustaining 330 bar for 10-100+ seconds without destroying the engine is likely several Raptor iterations away. Still, given SpaceX’s track record, all of those milestones are likely just a matter of time and perseverance.

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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 investors are ditching Charles Schwab after its vote against Musk comp plan

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Tesla CEO Elon Musk unveils futuristic Cybertruck in Los Angeles, Nov. 21, 2019 (Photo: Teslarati)

Tesla investors are ditching Charles Schwab as their brokerage after the firm said earlier this week that it would vote against CEO Elon Musk’s new compensation package.

Several high-profile Tesla influencers are speaking out against Charles Schwab, saying its decision to vote against the plan that would retain Musk as CEO and give him potentially more voting power if he can achieve the tranches set by the company’s Board of Directors.

The Tesla community recognized that Schwab is one firm that tends to vote against Musk’s compensation plans, as they also voted against the CEO’s 2018 pay package, which was passed by shareholders but then denied by a Delaware Chancery Court.

Schwab’s move was recognized by investors within the Tesla community and now they are speaking out about it:

At least six of Charles Schwab’s ETFs have voted against Tesla’s Board recommendation to support the compensation plan for Musk. The six ETFs represent around 7 million Tesla $TSLA shares.

Jason DeBolt, an all-in Tesla shareholder, summarized the firm’s decision really well:

As a custodian of ETF shares, your fiduciary duty is to vote in shareholders’ best interests. For a board that has delivered extraordinary returns, voting against their recommendations doesn’t align with retail investors, Tesla employees, or the leadership we invested to support. If Schwab’s proxy voting policies don’t reflect shareholder interests, my followers and I will move our collective tens of millions in $TSLA shares (or possibly hundreds of millions) to a broker that does, via account transfer as soon as this week.”

Tesla shareholders will vote on Musk’s pay package on Thursday at the Annual Shareholders Meeting in Austin, Texas.

It seems more likely than not that it will pass, but investors have made it clear they want a decisive victory, as it could clear the path for any issues with shareholder lawsuits in the future, as it did with Musk’s past pay package.

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Tesla Cybertruck explosion probe ends with federal involvement and new questions

The 78-page document detailed a planned attack by former Green Beret Matthew Livelsberger, who died by suicide before the blast that injured six people.

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Credit: IAA Auctions

The Las Vegas Metropolitan Police Department (LVMPD) has released its final investigative report into the New Year’s Day Cybertruck explosion outside the Trump International Hotel. But instead of bringing clarity, the findings have only raised more questions. 

The 78-page document detailed a planned attack by former Green Beret Matthew Livelsberger, who died by suicide before the blast that injured six people.

The perpetrator’s manifesto

According to a Fox News report, Livelsberger rented the all-electric pickup through Turo while on leave from his Special Forces unit. He filled the rented Cybertruck with fireworks, gas cans, and camping fuel before driving it to the hotel shortly after 8:40 a.m. on January 1. Surveillance footage showed him pouring accelerant into the truck bed moments before detonation, confirming premeditation.

Livelsberger left a manifesto on his phone, which was later deemed classified by the Department of War. This case was then handed over to federal authorities. Still, the LVMPD and federal investigators noted in their report that the incident was a “vehicle-borne improvised explosive device” (VBIED) attack “with the potential to cause mass casualties and extensive structural damage.” Officials, however, stopped short of labeling it terrorism.

In digital notes, Livelsberger wrote that his act was not terror-related but intended as “a wake-up call,” criticizing what he called America’s “feckless leadership.” He wrote, “Americans only pay attention to spectacles and violence. What better way to get my point across than a stunt with fireworks and explosives.”

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The incident ironically showcased the Cybertruck’s durability

Tesla CEO Elon Musk was among the first to respond publicly after the blast, confirming through X that the company’s senior team was investigating the incident. He later stated that vehicle telemetry showed no malfunction and that the explosion was caused by “very large fireworks and/or a bomb” placed in the Cybertruck’s bed.

Ironically, footage of the incident in the Cybertruck’s bed showed that the vehicle’s durable construction actually helped contain the explosion by directing the blast upwards. The bed remained largely intact after the explosion as well. Even more surprisingly, the Cybertruck’s battery did not catch fire despite the blast.

Months later, the same Cybertruck appeared on the online auction platform IAA, marked as “not ready for sale.” The listing has stirred debate among Tesla fans about why the historic vehicle wasn’t reclaimed by the company. The vehicle, after all, could serve as a symbol of the Cybertruck’s resilience, even in extreme circumstances.

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Norway’s $2 trillion sovereign wealth fund votes against Elon Musk’s 2025 performance award

The fund is managed by Norges Bank Investment Management (NBIM), and it holds a 1.14% stake in Tesla valued at about $11.6 billion.

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MINISTÉRIO DAS COMUNICAÇÕES, CC BY 2.0 , via Wikimedia Commons

Norway’s $2 trillion sovereign wealth fund has voted against Elon Musk’s 2025 performance award, which will be ultimately decided at Tesla’s upcoming annual shareholder meeting. 

The fund is managed by Norges Bank Investment Management (NBIM), and it holds a 1.14% stake in Tesla valued at about $11.6 billion.

NBIM’s opposition

NBIM confirmed it had already cast its vote against Musk’s pay package, citing concerns over its total size, dilution, and lack of mitigation of key person risk, as noted in a CNBC report. The fund acknowledged Musk’s leadership of the EV maker, and it stated that it will continue to seek dialogue with Tesla about its concerns. 

“While we appreciate the significant value created under Mr. Musk’s visionary role, we are concerned about the total size of the award, dilution, and lack of mitigation of key person risk- consistent with our views on executive compensation. We will continue to seek constructive dialogue with Tesla on this and other topics,” NBIM noted.

The upcoming Tesla annual shareholder meeting will decide whether Musk should receive his proposed 2025 performance award, which would grant him large stock options over the next decade if Tesla hits several ambitious milestones, such as a market cap of $8.5 trillion. The 2025 performance award will also increase Musk’s stake in Tesla to 25%.

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Elon Musk and NBIM

Elon Musk’s proposed 2025 CEO performance award has proven polarizing, with large investors split on whether the executive should be given a pay package that, if fully completed, would make him a trillionaire. 

Institutional Shareholder Services and Glass Lewis have recommended that shareholders vote against the deal, and initiatives such as the “Take Back Tesla” campaign have rallied investors to oppose the proposed performance award. On the other hand, other large investors such as ARK Invest and the State Board of Administration of Florida (SBA) have urged shareholders to approve the compensation plan. 

Interestingly enough, this is not the first time that Musk and NBIM have found themselves on opposing sides. Last year, NBIM voted against reinstating Musk’s 2018 performance award, which had already been fully accomplished but was rescinded by a Delaware judge.

Later reports shared text messages between Musk and NBIM Chief Executive Nicolai Tangen, who was inviting the CEO to a dinner in Oslo. Musk declined the invitation, writing, “When I ask you for a favor, which I very rarely do, and you decline, then you should not ask me for one until you’ve done something to make amends. Friends are as friends do.”

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