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SpaceX's three surviving thrice-flown Block 5 boosters - B1048, B1049, and B1046 - are pictured here in various stages of recovery. (Teslarati, Pauline Acalin) SpaceX's three surviving thrice-flown Block 5 boosters - B1048, B1049, and B1046 - are pictured here in various stages of recovery. (Teslarati, Pauline Acalin)

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SpaceX sets new Falcon 9 Block 5 reusability milestones for second half of 2019

Falcon 9 B1048, B1049, and B1046 pictured in various stages of their most recent launches. Together, the three have supported nine successful orbital-class launches. (Tom Cross & Pauline Acalin)

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Speaking at 2019’s Asia-Pacific Satellite (APSAT) Conference, SpaceX Vice President of Commercial Sales Jonathan Hofeller – squeezed into a sea of breaking-news updates – announced that the company plans to launch the same Falcon 9 Block 5 booster for the fifth (or sixth) time by the end of 2019.

Just an add-on at the end of a number of updates focused on SpaceX’s next-generation Starship/Super Heavy rocket, the phrasing reported by SpaceNews.com technically means that there are plans for a Falcon 9 booster to launch for the sixth time in the second half of 2019. The demonstration of such an extreme level of operational reusability barely 18 months after Falcon 9 Block 5’s debut would make it clear that SpaceX’s latest Falcon upgrade has been a resounding success. In line with those positive signs, Hofeller also noted that SpaceX is already starting to transfer the fruits of those labors to its customers by permanently lowering the base price of Falcon 9 launch contracts.

Most recently, SpaceX flew the same Falcon 9 booster for the third time (B1049) in support of its first dedicated Starlink launch, May 2019. (SpaceX/Teslarati)

Block 5 off to a spectacular start

First reported on by SpaceNews’ Caleb Henry, one of a few spaceflight journalists able to attend 2019’s Jakarta, Indonesia-based APSAT conference, details about the near-term future of Falcon 9 Block 5 reusability milestones were effectively tacked on at the end of much higher-profile breaking-news tidbits. Although wildly ambitious Starship goals led headlines (stay tuned for Teslarati’s own analysis later this week), the fact remains that ambitious development goals are inherently tenuous and likely to slip, particularly when the subject is large-scale, fully-reusable launch vehicles developed from a nearly blank slate.

What is not up for debate, however, is the fact that SpaceX’s Falcon 9 Block 5 upgrade is already flying routinely and reliably. After a successful debut in May 2018, Block 5 took over all SpaceX launches less than two months later. Since then, a total of 12 freshly-built Block 5 boosters have supported 16 Falcon 9 and 2 Falcon Heavy launches, ten – more than half – of which involved flight-proven boosters. According to official statements made recently by SpaceX executives, Block 5 boosters are expected to support an additional 12-19* launches in the second half of 2019.

*Derived by stacking “2-6 dedicated Starlink launches” and SpaceX’s 2019 target of 18-21 non–Starlink launches

Moving into 2019, SpaceX is likely just months away from its next triple and quadruple-reuse milestones.
Falcon 9 B1046 became the first SpaceX booster to launch three separate times in early-December 2018. (Pauline Acalin)

Tied directly to claims that the same Falcon 9 Block 5 booster will launch for the fifth or sixth time by the end of 2019, SpaceX already has three Falcon 9 boosters that have each completed a trio of launches, as well as an additional five with either one or two launches under their belts. Pictured at the top of the article, all three thrice-flown Falcon 9 boosters – B1046, B1048, and B1049 – could arguably be selected to become the next pathfinder as SpaceX prepares to put boosters through their fourth launches and beyond.

Rumored to be assigned to Crew Dragon’s in-flight abort (IFA) test prior to a major capsule anomaly on April 20th, B1046 could be off the manifest if SpaceX is confident that said IFA test can still be performed within the next several months. It’s currently unclear if that is a viable option for SpaceX’s Crew Dragon schedule, likely to remain uncertain until the failure investigation is fully completed and any necessary design/hardware/software fixes have been implemented. B1046 completed its third launch in December 2018 (a full six months ago), followed by B1048 in February 2019 and B1049 in May 2019. Although the “unknown territory” aspect of Block 5 reuse milestones is becoming less noteworthy, SpaceX is still likely to treat B104X’s fourth launch as a pathfinder, requiring extra time to dot I’s and cross T’s. With B1046 and B1048 potentially ready to go, that milestone could come any time now.

Falcon 9 B1046 lands aboard drone ship OCISLY after its third successful launch in December 2018, a reusability milestone for SpaceX. (SpaceX)

SpaceX customers already reaping financial benefits

Meanwhile, although certain heads-in-sand competitors continue to act and claim otherwise, SpaceX has reportedly normalized earlier prices for customers flying on flight-proven milestone missions. Speaking at APSAT, SpaceX’s Jonathan Hofeller indicated that that pricing is now the company’s “normal pricing”, pushing Falcon 9’s base price as low as ~$50M according to comments CEO Elon Musk made about a year ago. Two years prior to those comments and about six months prior to SpaceX’s first-ever booster reuse, COO and President Gwynne Shotwell reported that the company was offering discounts of ~10% for customers willing to contract launches on flight-proven Falcon 9 boosters.

In other words, SpaceX has cut Falcon 9’s base launch costs by anywhere from 10-20% over the last three years, a period in which the Falcon 9 V1.2 Full Thrust rocket’s capabilities were also dramatically upgraded from Block 1 (debut: December 2015) through Block 5 (debut: May 2018). Speaking during a press conference focused on Falcon 9 Block 5’s launch debut, CEO Elon Musk estimated that SpaceX has spent more than $1 billion to develop Falcon 9 reusability, while he previously estimated Falcon Heavy’s development costs to be well north of ~$500M. Musk and other execs have previously confirmed that SpaceX means to recoup some or all of that investment, indicating that the current margins of Falcon 9 launch contracts must be extremely favorable.

A remote camera set up by Teslarati photographer Pauline Acalin captured this incredible view of all 27 Merlin 1D engines powering Falcon Heavy’s first stage. (Pauline Acalin)

SpaceX has a healthy commercial manifest and will need to support dozens to hundreds of its own dedicated Starlink launches in order to orbit an operational and profitable constellation.

Check out Teslarati’s Marketplace! We offer Tesla accessories, including for the Tesla Cybertruck and Tesla Model 3.

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 Roadster’s new patent preps white-knuckle speeds, keeping it grounded

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Credit: @BLKMDL3/Twitter

Ahead of its highly anticipated unveiling, Tesla’s upcoming Roadster received a new patent that aims to keep it grounded while enabling white-knuckle speeds.

The patent, which was granted on September 29, is titled “Electric Car Fan,” bluntly stating its design but not its purpose, which is further detailed in the text of the application. Interestingly, it comes two weeks before the Roadster event, which was delayed due to unfavorable weather on Thursday, which could cause issues, as Tesla revealed the event must be held outdoors.

The purpose is to solve a problem that is relatively unique to high-performance electric cars. Instant motor torque is useless if the tires cannot plant that force, and conventional wings and underbody tunnels generate downforce only when air is already rushing past the car. At launch, in slow corners, and under hard braking from modest speed, passive aerodynamic additions contribute essentially very little to downforce.

Tesla’s filing says that its fans can produce the downforce needed, independent of vehicle velocity, then ease off so the same hardware does not pile on drag at highway speeds, an issue that can come from excessive body modifications.

The hardware outlined in the patent is a ducted-fan package that is placed into the rear of the vehicle. An underbody inlet between the rear wheels feeds a duct that rises to a wide outlet in the diffuser. In that outlet are four axial fans, which are divided by vertical strakes. They will pull air from under the floor and press the chassis onto the pavement.

The language in the patent claims it can cut drag rather than add to it while simultaneously increasing downforce.

Tesla Roadster event requires restricted airspace, and the FAA obliges

The fans run from the high-voltage battery and a vehicle control system, so output can be modulated rather than left on as a fixed penalty.

There are additional strengths that can come from this design, like extra tire load at low speed, which can contribute to even more face-melting acceleration rates, decrease stopping distance, and sharper turn-in before a wing has air to work with. Adjustable fan speed lets the car add grip only when needed, so it can be catered to the force of a turn or acceleration.

These designs were previously used, and banned, in some competitive settings. The Brabham BT46B was banned in F1 competition for using a similar fan design and being labeled as too effective.

Tesla still lists the Roadster as having a sub-two-second 0-60 MPH time and a 250-plus-MPH top speed, and there are expectations for a SpaceX cold-gas thruster package that could not only increase acceleration but potentially cause the vehicle to hover.

It is important to note that a patent is not a production part, and packaging four fans in a rear diffuser, managing noise, and potential debris are all things Tesla must consider. With that being said, the patent being granted shows Tesla is designing the Roadster to go fast, but it is also attempting to use unique strategies to combat any issues it might have at those speeds.

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Investor's Corner

Tesla showrooms picked clean ahead of Q3 end as demand looks strong

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Credit: @thaichiminh1907/X

Tesla (NASDAQ: TSLA) showrooms have been picked clean ahead of the end of the third quarter of the year, as demand looks to be strong and delivery estimates for new vehicles are pushed into late 2026 and early 2027.

Tesla appears to have sold out of many of its Model 3 and Model Y trim levels in the United States, as only the Model Y RWD and Model Y All-Wheel-Drive are available for delivery before the end of the year.

Additionally, many showrooms are either completely empty or void of all but just one demo unit within the buildings themselves in an effort to bolster what could be one of Tesla’s best quarters in vehicle deliveries in recent memory.

Additionally, when I spoke to the guys at Tesla Mechanicsburg two weeks ago, when I returned the Model Y L, their third hauler of the week had just arrived, and every vehicle on it, along with every vehicle in their delivery lot, was accounted for and had a name attached to it for delivery.

Tesla saw a 25 percent increase in deliveries in Q2 compared to the same quarter the year before. The vast majority of the 480,126 units it delivered, 467,762 vehicles to be exact, were the Model 3 and Model Y.

In Q3 2025, Tesla delivered 497,099 vehicles, once again a figure that was dominated by the company’s two mass-market vehicles. Analysts have unusually wide predictions for this quarter, likely because so many firms missed the Q2 delivery figure by such a substantial margin; Wall Street predicted 408,000 cars, while Tesla delivered 480,000.

Goldman Sachs has Tesla slotted for 435,000 deliveries in Q3, while JPMorgan said it anticipates 482,000. The median guess is about 449,000 deliveries for Q3.

Interested in ordering a Tesla? Use my referral code for three free months of Full Self-Driving (Supervised) here.

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Lifestyle

Watch Tesla’s “guardian angel” FSD feature take over for collision evasion

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Tesla’s Automatic Collision Evasion feature can be seen in one of the first owner videos of it in action.

Tesla owner Spencer (@scotsrule08) posted on Monday that the feature “worked flawlessly,” saying FSD reengaged itself just as he was about to hit a curb. Ashok Elluswamy, who leads Tesla’s AI team, shared the clip and wrote, “A guardian angel always looking out for you.”

The video arrives in the middle of a staged rollout. Tesla first shipped Automatic Collision Evasion with FSD (Supervised) v14.3.9 in software update 2026.27.6 earlier this month, which Teslarati covered as it reached cars. Update 2026.27.10, which began going out on September 19, carried the feature improvements with FSD v14.3.10, according to release notes tracked by Not a Tesla App. The newer 2026.27.11 build is now reaching another wave of vehicles.


The feature only runs on HW4 vehicles, and it requires an active FSD purchase or subscription with both FSD (Supervised) and Automatic Emergency Braking enabled. HW3 owners receive FSD v14.2 Lite in the same updates, but that build does not include collision evasion.

Tesla’s release notes describe two triggers. The first is an imminent frontal collision that braking alone may not prevent, in which case the car can activate FSD to steer, brake or accelerate around the hazard. That scenario is limited to highways below 85 mph, with no pedestrians or cyclists detected and no slippery road surface. The second covers a driver who appears inattentive, such as reaching into the back seat, or who seems to have switched off FSD by accident. Spencer’s curb clip appears to fall into that second category.

Tesla plans big safety improvements for Full Self-Driving v15

Once the system takes over, the accelerator is muted and light brake input will not cancel the maneuver. Drivers need to apply firm, deliberate steering force to take back control, and the car chimes to hand control back once the danger has passed.

Elluswamy recently noted that earlier hazard prediction, faster reaction time and better collision avoidance would arrive with FSD v15, the next major version.

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