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SpaceX’s next step towards airplane-like Falcon 9 reusability expected in 2018

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Speaking at an impromptu IAC 2018 talk, Vice President of Build and Flight Reliability Hans Koenigsmann confirmed earlier this month that SpaceX is aiming to conduct its first triple reuse of a Falcon 9 booster before the year is out.

While not entirely confident on the specific mission it would end up flying on, Koenigsmann floated the company’s next Vandenberg, CA launch – Spaceflight Industry’s SSO-A rideshare – as a prime candidate, tentatively targeting November 19th.

B1048’s second launch and landing, captured from the same camera perspective. (Pauline Acalin)

As of November 19th, only two Falcon 9 Block 5 boosters will be candidates for a third reuse – B1046 and B1048. Falcon 9 B1048 launched for the second time just days ago, placing Earth observation satellite SAOCOM 1A in orbit before performing the first return-to-launch-site (RTLS) recovery on the West Coast, also marking the debut of SpaceX’s long-dormant LZ-4 landing zone. Aside from playing a role in one of the most spectacular launch-related light shows ever created, B1048 is noteworthy for being SpaceX’s second-fastest Falcon 9 booster turnaround, taking just 74 days to go from its first launch and landing to its second operational use.

While B1046 – launched first on May 11th and again on August 7th – will have had more than three months of potential refurbishment by SSO-A’s Nov. 19 launch target, both of its two launches involved relatively high-energy profiles with heavy payloads, resulting in higher (and thus more damaging) heating during reentry. B1048, on the other hand, has launched a heavy set of 10 Iridium NEXT satellites into a low-energy orbit and then launched the much lighter SAOCOM 1A spacecraft into an equally low orbit, translating to much more forgiving reentries and thus much easier refurbishment.

Later at IAC 2018, Hans spoke in more detail about the leading challenges facing SpaceX in this relatively mature stage of reusable rocketry optimization. Most notably, he seemed to imply that the most difficult aspect of refurbishing Falcon 9 boosters was damage caused to its nine Merlin 1D engines while taking the brunt of Falcon 9’s reentry inertia, not hugely surprising given the awkward geometry and sheer force behind a booster traveling more than 2000 meters per second.

 

It’s possible that SpaceX will set B1046 up as the pathfinder for all future reusability milestones, including the 3rd, 4th, and 5th booster flights and beyond. However, B1048 may well be in better condition, is already directly stationed at its refurbishment facility, and will have another relatively low-energy launch ahead of it if assigned to SSO-A. Critically, flying for the third time on SSO-A – as few as 43 days after its second orbital launch – will require B1048 to break SpaceX’s record for faster Falcon 9 booster turnaround by more than 50%, despite the fact that it would have two full operational missions under its belt.

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It may sound more mundane than other crowning SpaceX achievements, particularly with the focus on numbers that might seem arbitrary and unimportant at first glance, but it’s actually difficult to overstate just how important the third reuse of a Falcon 9 booster is, particularly if that pathfinder happens to break refurbishment records at the same time.

SpaceX’s ultimate goal is to build and launch rockets with airplane-like reusability and reliability, eventually flying boosters and other components upwards of 100-1000 times each, and the jump from two flights per core to three will be the best evidence yet that the company is making rapid progress in that direction.


For prompt updates, on-the-ground perspectives, and unique glimpses of SpaceX’s rocket recovery fleet check out our brand new LaunchPad and LandingZone newsletters!

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 Semi catches fire in California: what we know

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Credit: KTVU

A Tesla Semi caught fire in Hayward, California, which caused both directions of traffic to shut down for hours before being completely reopened early on Wednesday, the California Highway Patrol said.

The fire occurred just after 5:30 local time in Hayward on Tuesday, as the Semi caught fire in the southbound lanes of I-880 before CHP officials made the decision to shut down both lanes of traffic due to potential risks from hazardous chemical smoke.

There were no injuries reported.

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The cause of the fire is currently unknown, as neither Tesla nor the CHP have not determined a cause.

However, some images taken before the Semi was completely destroyed by the fire seem to indicate this might have been an older unit, as it appears to be one of the designs that Tesla shipped as part of its pilot program, before revising it and starting mass production just a month ago.

At the time of publication, CHP had not returned our request for a comment for additional details, including the Semi involved and any potential collaboration on an investigation between the CHP and Tesla. We will update this story when we hear back from them.

The southbound lanes were reopened at 3:30 a.m. on Wednesday, with the northbound lanes opening last night a few hours after the fire began. The CHP did state that the lithium batteries were “incredibly difficult to extinguish,” according to NBC Bay Area.

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The truck’s driver said that the Semi caught fire, but he did not have an explanation.

An estimated 5,000 to 7,000 semi-truck and large commercial vehicle fires occur on U.S. roadways every year.

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Tesla’s ‘Emergency Drive Away’ function gets its first use in the real world

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Credit: Tesla

Tesla’s launch of the “Emergency Drive Away” function a few months back offered owners a safe option to evacuate an area if they were in reasonable danger. The function finally got its first use in the real world, but it appears it was by mistake.

A video shared by u/Joshalander in the r/TeslaLounge subreddit recorded the instance from his vehicle and said the incident took place in Austin this past weekend during the city’s F1 Race.

“Was charging around 6 AM this past Sunday in Austin before heading to the F1 race and heard a pop. Looked over and saw the new emergency drive-away feature in action. Genuinely felt bad for the dude when he got out and realized what happened, since he looked exhausted and only seemed to half-read the prompts.”

Emergency Drive Away unlatches the Supercharger connector from the vehicle, but still causes damage to both the car and the Supercharger. Tesla has said that it will cost up to $25,000 in repairs to have everything fixed back to normal.

Additionally, the company said that if it were not used in an emergency situation, the driver of the vehicle who activated the Emergency Drive Away feature would be responsible for all repair costs.

Tesla constitutes the following situations as reasonable justifications for activating the feature:

  • You face an immediate threat to your life or personal safety.
  • You must leave the area immediately.
  • Exiting the vehicle is unsafe.
  • Unplugging the charge connector would unreasonably delay your departure or expose you to a risk to your personal safety.

After using the feature, Tesla requires the driver to schedule Service so the car can be inspected.

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Tesla’s Cybercab battery design could make robotaxis even cheaper

Tesla built the Cybercab’s battery pack with spare room for a future switch to LFP.

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Tesla built the Cybercab’s battery pack with empty space inside it on purpose, and the reason points to a cheaper robotaxi down the road.

Robert Sumpf, Tesla’s director of mechanical design engineering for battery modules and packs, said the extra room beside and beneath the Cybercab’s modules was left there so the company can move to lithium iron phosphate cells later. “So, we protected this pack to go to an even lower energy dense chemistry as we scale and need to bring LFP into the platform,” Sumpf said in a Cybercab deep dive with Munro Live.

The Cybercab runs on Tesla’s own 4680 cells with a nickel chemistry today. LFP cells store less energy for their size, so a straight swap would cut range. The reserved space lets Tesla add more LFP cells to make up the difference. In return, Tesla would get cells that cost less, run cooler and survive more charge cycles. LFP became the most used EV battery chemistry in the world last year.

Not all of that room was planned for a chemistry change. Lars Moravy, Tesla’s Vice President of Vehicle Engineering, said part of it exists because “we didn’t need as many batteries as we thought we did.” Tesla told Sandy Munro in early 2025 that it was targeting a Cybercab pack under 50 kWh with close to 300 miles of range.

The pack also breaks from the structural design Tesla used in some Model Y and Cybertruck builds. Instead of potting hundreds of cells into one block, the Cybercab uses four separate, individually sealed modules, so a bad module can be replaced without scrapping the whole pack. Sumpf was blunt about the older approach, giving the Model Y structural battery “a grade D” because it was hard to build and nearly impossible to repair. He estimated a fully structural pack gains about 10% more cell volume, but said “the issue is the service cost.”

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That cost matters more for a car that rarely sits parked. Cybercab chief engineer Eric Earley said replacing an entire pack “before half a million miles is a killer on cost,” which is why remanufacturing and serviceability were built into the design from the start.

The same Munro Live tour produced Moravy’s admission that the Cybercab line at Giga Texas is now outpacing Robotaxi deployments, along with a look at the robotaxi’s unorthodox paint process. Tesla is aiming to deliver the first Cybercabs to outside customers by the end of 2026, though Elon Musk has said the vast majority will stay owned by Tesla and run as a transport service.

Sumpf did not give a date for an LFP version, name a cell supplier or say how a chemistry change would affect range. For now, the 4680 cars keep piling up: Texas DMV records from Tuesday list 544 Cybercabs authorized for Tesla’s Robotaxi fleet, more than the 507 Model Ys on the same roster for the first time.

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