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SpaceX may perfect reusable rockets in 2018: Evolution in the Falcons’ Nest
2017 has in almost every respect been an unrivaled halcyon year for SpaceX: over the course of its twelves months, SpaceX has returned to flight, begun reusing Falcon 9 boosters, and overall completed 18/18 successful launches and 15/15 first stage recoveries – five of which were commercial reuses of ‘flight-proven’ boosters. It is difficult to fathom how the year could have been more successful, aside from a slight hiccup with fairing manufacturing that may have prevented the launch company from racking up 20 or more missions in 2017.
And yet, despite the flooring and incontrovertible triumphs, I can state with confidence that, barring any serious anomalies, SpaceX’s 2018 docket will utterly eclipse 2017’s varied achievements. This series of articles will act as a sort of preview of SpaceX’s imminent future in 2018, each looking at what the new year may hold for the company’s three most fundamental pursuits: the Falcon rocket family, the Starlink satellite internet initiative, and its ambitions of interplanetary colonization.
Sooty Falcon 9 1035 before its second flight with an also-reused Dragon payload, CRS-13. (Tom Cross/Teslarati)
Falcon finds its wings
While 2015 and 2016 both saw their own hints of potential successes to come, 2017 is the first year that SpaceX managed a truly impressive launch cadence for Falcon 9 without a serious vehicle failure. Every 2017 launch flew on either a Block 3 or Block 4 iteration of Falcon 9 1.2. Esoteric model numbers aside, this simply means that Falcon 9’s design, manufacture, and operation are all maturing rapidly; SpaceX has clearly learned from the CRS-7 and Amos-6 failures and responded accordingly with a more cautious and tempered perspective.
From a historical perspective, it is extraordinarily impressive that Falcon 9 and Cargo Dragon have experienced such a tiny number of failures over their short but active existences. Both Falcon 9 and Dragon have experienced several miscellaneous teething issues and technical difficulties over their ~7 years of launches, but only three anomalies resulted in failures that catastrophically impacted customer payloads: CRS-1, CRS-7, and Amos-6. Thus, out of a total of 46 Falcon 9 launches, approximately 94% have been complete successes. For perspective SpaceX’s first orbital rocket, Falcon 1, experienced total failures during its first three launch attempts, for a success rate of 40%.
SpaceX’s Falcon family of rockets. (Wikipedia)
Barring further flight hardware anomalies in the Falcon family, however, 2018 is likely to be even more of a boon for Falcon 9 (and Falcon Heavy). While Falcon Heavy is set to ring in the new year sometime in January 2018, just a few weeks away, far more significant for SpaceX’s launch business is the debut of the “final” iteration of Falcon 9, dubbed Block 5 or ‘V5,’ likely within the next several months. Block 5 has been heavily modified almost entirely for the sake of more efficient reuse, and will feature titanium grid fins (most recently spotted on Falcon Heavy) and several other changes. Altogether, SpaceX’s public goal is to be able to reuse Falcon 9 Block 5 as many as a dozen times with relative ease, and each booster’s lifespan could potentially be lengthened by a factor of 5-10 with more extensive periodic maintenance.
For now, we only use those on super hot reentry missions. Will go to all Ti with Falcon 9 V5, which is a few months away.
— Elon Musk (@elonmusk) December 17, 2017
This ‘final’ version of Falcon 9 will almost undoubtedly go through its own period of tweaks, changes, and iterative improvements once it debuts and begins to gather flight experience. Nevertheless, it’s plausible that once its minor problems are ironed out, SpaceX will choose to “freeze” the design and begin to aggressively transfer large sections of its engineering and manufacturing base over to the company’s Mars rocket, BFR. Ultimately, the highly reusable Block 5 evolution of Falcon 9 will allow SpaceX to transfer over its customers to reused rockets and thus recoup the cost of reusability R&D far faster than ever before, both by lowering the material cost of launch and enabling a considerably higher frequency of launches.
This crop of Falcon Heavy shows off its side cores, both sporting titanium grid fins that are considerably larger than the original aluminum fins. (SpaceX)
Taken as a whole, the culmination of the Falcon family’s evolution will pave SpaceX’s path to realizing its even wilder ambitions of providing ubiquitous and superior satellite internet and transforming itself into the backbone of crew and cargo transport to the Moon, Mars, and beyond. But that’s a story for another day…
While we wish we could jump forward to the end of 2018 and reflect upon even more incredible SpaceX achievements, you can follow SpaceX’s day by day progress live with our launch photographer Tom Cross on Twitter and Instagram @Teslarati. Significant upcoming events include the ever-secretive launch of Zuma (7:57pm EST, January 4) and the inaugural static fire and launch of the titanic Falcon Heavy (no earlier than Jan. 6 and Jan. 15).
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
