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SpaceX sets new Falcon 9 Block 5 reusability milestones for second half of 2019
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.
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
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.
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.
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.
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SpaceX’s Raptor engine family has steadily increased sea-level thrust while simultaneously reducing mass, turning iterative engineering gains into substantially higher performance for the Super Heavy booster. CEO Elon Musk shed more light on how powerful Raptor 4 will be, and it’s pretty crazy.
Raptor 1 delivered 185 metric tons of thrust at roughly 2,080 kilograms, while Raptor 2 raised that to 230 tons while cutting mass to about 1,630 kilograms. SpaceX data for Raptor 3 lists a target of 280 tons at 1,525 kilograms (with further reductions in associated vehicle hardware), while operational flight ratings have been cited near 250 tons.
This morning, Elon Musk stated that Raptor 4 is expected to reach 300 tons of sea-level thrust at roughly the same mass as Raptor 3. Across these versions, thrust has risen by more than 60 percent from the first engines while engine mass has fallen, producing a sharp improvement in thrust-to-weight ratio. This is a true testament to how great SpaceX engineering has been:
🚀 Elon says Raptor 4 will make 300 tons of thrust at sea level at roughly the same mass as Raptor 3.
How far Raptor has come:
Raptor 1: 185 tf, 2,080 kg
Raptor 2: 230 tf, 1,630 kg
Raptor 3: 250 tf, 1,525 kg
Raptor 4: 300 tf33 on Super Heavy = ~9,900 tf, nearly 3x Saturn V https://t.co/HQDswZhyvL
— TESLARATI (@Teslarati) October 26, 2026
With 33 engines on SuperHeavy, the jump from earlier versions to a 300-ton Raptor 4 would produce roughly 9,900 metric tons of total liftoff thrust, nearly three times the Saturn V’s approximately 3,400 metric tons from its five F-1 engines.
This is not just a larger number on a data sheet, either, as sea-level thrust is the force available the moment the vehicle leaves the pad. This is when it is heaviest and still deep in Earth’s gravity well and dense atmosphere.
Higher levels of sea-level thrust directly improves the initial thrust-to-weight ratio of the full stack. A higher ratio produces faster acceleration off the pad, which shortens the time the rocket has to spend fighting gravity, and gravity losses during the first minute or two of the flight are a major drain on total available delta-v. Every second shaved off of that early climb preserves more propellant energy for reaching orbital velocity or for carrying extra payload.
Because Super Heavy’s engine count is constrained by vehicle diameter and packing density, increasing thrust per engine is the most straightforward way to raise total liftoff performance without redesigning the booster structure or design.
The same-mass target for Raptor 4 is equally important. Holding engine mass roughly constant while raising thrust improves the engine’s own thrust-to-weight ratio and reduces the structural and propellant mass fraction that must be carried solely to support the engines.
Earlier Raptor iterations also simplified or eliminated extensive vehicle-side hardware such as heat shields. These gains compound: more force for less installed mass leaves additional capacity for propellant, payload, or operational margins such as engine-out capability.
For Starship’s architecture, the practical effects are large. Greater liftoff thrust supports heavier vehicles, larger propellant loads, and higher payloads to low Earth orbit, figures SpaceX has targeted in the 100-plus-ton reusable range. That capacity underpins orbital refueling, lunar missions, and eventual Mars cargo and crew flights.
Continued growth in sea-level thrust therefore tightens the gap between theoretical rocket performance and the high flight rates and reusability needed to make large-scale space transport practical.
Tesla has expanded its Tesla Assisted Driving (TAD) suite to its tenth European country, as Latvia joined a growing list of European Union member states authorizing the company’s advanced driver assistance technology.
Tesla Europe announced this morning that the system is now approved in Latvia, with a software rollout to begin soon.
The approval and rollout follow recognition of a provisional European type approval originally granted by the Netherlands’ RDW authority on April 10.
🚨 Latvia has just received approval for Tesla Full Self-Driving (Supervised)
This is the 10th country in the EU to gain approval:
1. Netherlands — 10 April 2026 (original RDW approval)
2. Lithuania — 20 May 2026
3. Estonia — 29 May 2026
4. Denmark — 9 June 2026
5. Belgium — 10 June 2026
6. Slovenia — 7 September 2026
7. Czechia — 21 September 2026
8. Croatia — 29 September 2026
9. Slovakia — 16 October 2026— TESLARATI (@Teslarati) October 26, 2026
Latvia’s Road Traffic Safety Directorate (CSDD) evaluated the Dutch documentation, coordinated with the other national authorities, and reviewed updates from Tesla. These included tightened limits on speed offsets, automatic resets of any manual speed adjustments after each trip, and stronger driver monitoring.
In Europe, the feature is marketed as Tesla Assisted Driving after a recent rule change that labeled the name “Full Self-Driving” as misleading.
The system remains an SAE Level 2 driver assistance tool, not unsupervised autonomy. It can control speed, steering, braking, lane changes, and intersections while following a navigation route. Drivers need not keep their hands on the wheel at all times, yet they must continuously monitor the road and be prepared to intervene immediately.
The sequence of EU recognitions began with the Netherlands in April and continued through Lithuania, Estonia, Denmark, Belgium, Slovenia, Czechia, Croatia, and Slovakia. Most have relied on mutual recognition of the single Dutch provisional approval rather than independent national testing.
These national clearances do not yet constitute bloc-wide authorization. An EU-wide decision requires a qualified majority in the Technical Committee on Motor Vehicles: at least 15 of 27 member states representing 65 percent of the EU population. Larger markets, like Germany, France, and Italy, remain under review, and a vote is expected this December.
However, for Latvian Tesla owners with compatible vehicles and software, the imminent rollout expands access to the supervised system while underscoring that attentive human oversight remains essential.
Tesla expanded its Robotaxi geofence in Houston, Texas, today, enlarging the service area and drawing a new rocket-shaped boundary across the city’s northwestern and central parts.
Although CEO Elon Musk said it was just a coincidence, the expansion seems to be an ode to SpaceX and its potential merger with Tesla.
🚨 Tesla has just expanded its Robotaxi geofence in Houston
It looks a lot like a rocket — we all remember the shape in Austin 🤣 https://t.co/cFOPEuiJ4u
— TESLARATI (@Teslarati) October 26, 2026
The official Tesla Robotaxi account announced the change with the lines “Houston, we have liftoff” and “Bigger service area now live,” pairing them with a map overlay.
The prior white geofence, roughly 25 square miles covering Jersey Village, Harvest Bend, and the Willowbrook corridor along U.S. 290 and State Highway 249, now sits inside a larger blue zone that stretches southeast toward Bellair and closer to central Houston.
Houston’s Robotaxi service launched on April 18, 2026, the same day as Dallas, as Tesla’s first unsupervised public expansion beyond Austin. From the start, the vehicles were Model Ys running without anyone in the front seats, booked through the dedicated Tesla Robotaxi app and open to the public inside the geofence.
Trackers measured the initial zone at about 25 square miles; by late September it had not grown substantially. Community and registry data indicated a modest local fleet of unsupervised Model Ys, while dozens to nearly 200 Cybercabs, the purpose-built, steering-wheel-free two-seaters, have been spotted staging and testing in Houston lots, though public Cybercab rides remain limited to Austin for now.
Across the broader Robotaxi program, Tesla began public Robotaxi rides in Austin in June 2025, as a small geofence and vehicles with safety monitors became available for a ride-hailing service. Later on, Tesla removed the monitors and steadily expanded the service area until it covered most of the Austin metro area.
Unsupervised Robotaxi services now run in six cities: Austin, Dallas, Houston, Miami, Orlando, and Tampa. Cumulative driverless miles reported by the company have reached several million. The Cybercab entered public service in Austin in early September 2026 and has scaled rapidly there. The company has also said that Dallas is next for Cybercab rides in November, with further cities and 24/7 hours targeted by year-end, plus fleet-operator sales of the vehicle.
Waymo also operates a fully driverless service in Houston, which has been open to the public since August of this year.
The Houston expansion continues Tesla’s pattern of starting with tightly controlled validation zones before widening coverage as real-world data accumulates, while the rocket motif on the map underscores the company’s habit of injecting visual flair into its autonomy rollout.
Riders inside the new boundary can request unsupervised Model Y trips in the Robotaxi app; exact operating hours and further Cybercab availability remain subject to app updates and company statements.
How SpaceX Is raising Raptor’s sea-level thrust while holding engine mass steady
Tesla Assisted Driving expands to tenth EU country
