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SpaceX’s upgraded Starship completes second Raptor engine test in ~24 hours

SpaceX has fired up Starship SN15 for the second time in ~24 hours. (NASASpaceflight.com)

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4 years ago

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SpaceX Starship prototype SN15 has completed a second ‘static fire’ test of its Raptor engines in the last 24 hours, hopefully setting up the rocket for a launch and landing attempt on Thursday or Friday.

While Monday’s test was a total success, it’s unclear if April 27th’s static fire went according to plan. Notably, it was much shorter than the Monday engine test and involved either one or two – but not all three – of Starship SN15’s Raptor engines. Historically, unusually brief static fires (~2-3 seconds) aren’t unprecedented, but they’ve generally been part of a process of troubleshooting after a prototype runs into technical issues during earlier testing.

According to Musk, SpaceX also moved to reigniting all three sea level Raptors for landing burns from Starship SN10 onwards, meaning that an intentional two-engine SN15 static fire is either a reversion to earlier two-engine landing burns or a sign of a static fire abort or engine ignition failure. If SpaceX needs to perform another test, particularly if one or more Raptors need to be replaced, Starship SN15’s launch will likely slip into early May. Stay tuned for updates.

SpaceX CEO Elon Musk says that the next Starship launch could happen “later this week” after the company’s first ‘upgraded’ prototype aced a three-engine static fire test on the first try.

While substantially delayed from optimistic initial targets just a week or two after the rocket rolled from factory to launch pad, upgraded Starship prototype serial number 15 (SN15) – outfitted with “hundreds of improvements” – fired up its three Raptor engines for a few seconds around 5pm CDT on Monday, April 26th. Also upgraded, the rocket’s engines seemed to perform nominally and SpaceX ultimately closed out the evening’s testing a few hours early.

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Around the same time as SN15’s first static fire attempt was wrapping up, SpaceX distributed safety notices to Boca Chica Village residents, indicating that a second static fire test may be planned on Tuesday. Musk didn’t mention plans for a second static fire, but he did imply that the first test was completed successfully enough to enable Starship SN15 to launch just a few days from now.

Like four other “high-altitude” flight tests before it, Starship SN15 is expected to target a similar ~10-12 kilometer (6-8 mi) apogee and once again attempt to perform a complete ascent, controlled bellyflop, landing flip maneuver, and soft touchdown. Between December 2020 and April 2021, Starships SN8 through SN11 tried and failed to survive that challenge intact, though prototype SN10 did manage to survive for around ten minutes on the ground before its still-hard landing led to an explosion.

All four failures ultimately had different causes. Starship SN8 lost fuel tank pressure, starving its Raptors and causing a near-total loss of thrust seconds before touchdown. One of SN9’s Raptors failed to ignite for a landing burn, triggering an even more aggressive impact with the ground. Starship SN10 landed in one piece but its lone landing engine underperformed when it began to ingest helium ullage gas – a quick-fix implemented after SN8’s pressurization issue. SN11 exploded almost immediately after attempting to ignite its three engines for landing, failing even earlier than its predecessors.

All four flight tests saw each respective Starship prototypes narrowly miss a fully successful and survivable landing, providing SpaceX a great deal of data and direct experience to improve the rocket’s design and operations with. Two of the four failures – SN9 and SN11 – appear to have been the fault of one or more of Starship’s three Raptor engines. Beginning with Starship SN15, SpaceX has moved to an upgraded iteration of the next-generation engine, raising hopes that whatever changes the company has implemented will substantially improve reliability and thus the odds of a successful high-altitude launch and landing test.

Musk blames SpaceX’s latest Starship explosion on Raptor engine leak
SpaceX Starship outfitted with upgraded Raptor engines for Wed static fire

As of April 26th and in spite of one or two weeks of delays, the fact that Starship SN15 managed to complete a three-Raptor static fire test on its first true attempt is a great sign that the rocket’s many “improvements” may already be paying dividends. A launch “later this week” would make the effects of those improvements even harder to deny. A successful launch and landing in the next few days would all but guarantee that SpaceX’s process of iterative development is working like a charm. Regardless of whether SN15 survives its first flight, Starship SN16 will likely be ready to take over a matter of days later.

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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 pushes crazy ‘Luxe’ incentive package on flagship Model S and X

Tesla is pushing more customers to the Model S and Model X with a new incentive package.

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2 hours ago

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August 16, 2025

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Credit: Tesla

Tesla has pushed a crazy new incentive package, known as the “Luxe Package,” on the flagship Model S and Model X, along with a $10,000 price increase on each trim level.

The move aims to likely bolster margins for the company on the two cars while also giving those who choose to buy the Tesla lineup mainstays a variety of awesome advantages, including Free Supercharging, Full Self-Driving, and other add-ons.

Tesla is offering a crazy Supercharging incentive on its two ‘sentimental’ vehicles

Last night, Tesla launched the “Luxe Package” for the Model S and Model X, which includes the following four add-ons:

  • Full Self-Driving (Supervised) – Your car will be able to drive itself almost anywhere with minimal driver intervention
  • Four-Year Premium Service – Wheel and Tire Protection, Windshield Protection, and Recommended Maintenance
  • Supercharging – Charge for free at 70,000+ Superchargers worldwide
  • Premium Connectivity – Listen to music, stream movies, monitor live traffic, and more – no Wi-Fi needed

Full Self-Driving is priced at $8,000. Free Supercharging for the life of the car is between $10,000 and $15,000 over the life of the vehicle, although Tesla has valued it at $5,000 in recent promotions.

Free Premium Connectivity is roughly $1,000, and the four-year tire, wheel, windshield, and maintenance plan is about $3,200.

In all, the value is over $25,000, but this is loosely based on usage.

The Model S and Model X are low contributors to Tesla’s overall sales figures, as they make up less than five percent of sales from a quarterly perspective and have for some time.

As they are certainly the luxury choices in Tesla’s lineup, the Model 3 and Model Y are the bigger focus for the company, as a significantly larger portion of the company’s sales is made up of those vehicles.

The Luxe Package is an especially good idea for those who drive high-mileage and plan to use the Model S or Model X for commuting or long drives. The free Supercharging makes the deal worth it on its own.

As for the price bumps, each of the vehicles are now priced as follows:

  • Model S All-Wheel-Drive: $94,990
  • Model S Plaid: $109,990
  • Model X All-Wheel-Drive: $99,990
  • Model X Plaid: $114,990
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Tesla Roadster could have a formidable competitor with BYD’s 3000-HP supercar

The Roadster is one of the most anticipated vehicles of all time, especially because we’ve all had to wait so long for it. On its own, it will have a 1.9-second 0-60 MPH acceleration rate, which is projected to be better than the 2.3 seconds the U9 Track Edition will offer.

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4 hours ago

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August 16, 2025

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The Tesla Roadster is on the way, and yes, we know we’ve heard that for quite a few years. But when it comes, it might have a formidable competitor, and it might come from no one other than Chinese rival BYD.

BYD’s Yangwang U9 Track Edition is a new configuration of the U9 supercar that hit the Chinese Ministry of Information Technology (MIIT) database recently.

The vehicle was first spotted on the MIIT database by CarNewsChina. It will have a quad-motor powertrain, each dedicated to one wheel. Instead of the 1,287 horsepower that comes with the standard U9 configuration, the Track Edition will have 2,977.

There are only two cars that even come close in terms of horsepower: the Lotus Evija with 1,972 and the Rimac Nevera at 1,914 horsepower. The Tesla Roadster is expected to have somewhere around 1,000 horsepower.

The Roadster is one of the most anticipated vehicles of all time, especially because we’ve all had to wait so long for it. On its own, it will have a 1.9-second 0-60 MPH acceleration rate (without the SpaceX package, which brings the projection to 1.1 seconds), which is projected to be better than the 2.3 seconds the U9 Track Edition will offer.

The Roadster also beats the U9 Track Edition in projected top speed and range. The Roadster could top out at over 250 MPH, compared to the 217 conservative projection for the U9 Track Edition.

Range on the Roadster is 620 miles, beating 280 miles for the BYD.

The U9 Track Edition will also have some additional features compared to its base model. These include some aerodynamic additions, like a carbon fiber rear wing, diffuser, and an adjustable front splitter and adjustable rear wing.

The latter two are optional, but if you have enough scratch to drop on this car, you’re probably adding those two features as well.

We hope that both the Roadster and U9 Track Edition will hit a drag strip, road course, or even a superspeedway for some racing. It would truly be something for EV fans to drool over.

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Tesla is breaking even its own rules to cap off an intense Q3

Tesla is pulling out all the stops to have a strong Q3 as the EV tax credit will phase out.

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7 hours ago

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August 16, 2025

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Credit: MarcoRP | X

Tesla is breaking its own rules by advertising on various platforms in an effort to sell as many cars as possible before the end of the $7,500 electric vehicle tax credit.

Tesla has had a very polarizing perspective on advertising. Over the years, it has taken on different attitudes toward spending any money on marketing. It has instead put those dollars into research and development to make its vehicles more advanced.

Back in 2019, Tesla CEO Elon Musk talked about the company advertising its vehicles and energy products:

In 2021, in response to analyst Gary Black, who has pushed for Tesla to have a PR or marketing department, Musk said:

However, this did not hold as Tesla’s strategy for the long haul. While Musk did resist advertising for a long time, Tesla started placing ads on platforms like X, Google, and YouTube several years back. It’s pretty rare that Tesla pushes these ads, however.

Tesla launches advertising on X in the U.S., expanding ‘small scale’ strategy outlined by Musk

The company’s stance on setting aside capital for advertising seems to be circumstantial. Right now, it is working to sell as many vehicles as it can before the tax credit comes to a close.

As a result, it is pushing some ads on YouTube:

It’s a move that makes sense considering the timing. With just six weeks roughly left in the quarter, Tesla is going to work tirelessly to push as many cars into customer hands as possible. It will use every ounce of effort to get its products on people’s screens.

Tesla counters jab at lack of advertising with perfect response

Throw in one of the many incentives it is offering currently, and there will surely be some takers.

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