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SpaceX sends reused Falcon 9 booster west for first California Starlink launches
SpaceX has shipped the first of one or two flight-proven Falcon 9 boosters from Florida to California in the latest sign that the company is preparing to begin dedicated polar Starlink launches in the near future.
On May 27th, a Reddit post revealed a Falcon 9 booster arriving at Vandenberg Air/Space Force Base (VAFB), the home of SpaceX’s West Coast SLC-4E launch pad. Only truly useful for polar or high-inclination launches with satellites that need to orbit the Earth’s poles instead of the equator, SpaceX has only used SLC-4E twice in the last two years – once in June 2019 and most recently in November 2020.
Now, amidst a major hiring spree and rare new activity at a nearby Los Angeles port, SpaceX is clearly gearing up to return its SLC-4E launch pad to active duty.
B1049 began its career in Florida (Telstar 18V), moved to Vandenberg for its second flight (Iridium-8), went back to Florida for seven Starlink missions, and is once again returning to the best coast.— Michael Baylor (@nextspaceflight) May 27, 2021

Both recent West Coast Falcon 9 missions hosted booster landings at LZ-4, a landing zone situated a little over 1000 feet (300m) away from the launch pad. That freed up SpaceX to ship former West Coast drone ship Just Read The Instructions (JRT) across the Panama Canal in August 2019, where it ultimately joined the company’s Florida rocket recovery fleet in early 2020 to support a major launch cadence ramp.
As a partial result, SpaceX was able launch Falcon 9 26 times in 2020, beating the previous record – 21 flights – by almost a quarter. In 2021, SpaceX is well on its way to smashing that annual launch record again and has completed 16 orbital launches with seven full months left in the year. That cadence is pushing SpaceX’s launch pads, recovery ships, and booster fleet to their limits. Due to the voracious demands of SpaceX’s almost weekly launch cadence, the company would only be shipping a workhorse booster to Vandenberg if there was a pressing need for it.
Said to be Falcon 9 B1049 by Next Spaceflight and NASASpaceflight reporter Michael Baylor, the booster that arrived at Vandenberg Air Force Base on Thursday has flown nine times – two of which it completed in February and May 2021. B1049 hasn’t been the most rapidly reusable of the fleet and is the oldest Falcon booster still operational after debuting in September 2018. However, SpaceX’s SLC-4E is relatively old itself and recruiting documents distributed as recently as 2021 indicated that the company’s West Coast resurgence was targeting a maximum cadence of one launch per month.
Virtually all of those missions will carry the company’s own Starlink satellites. On Wednesday, May 26th, SpaceX completed its 28th operational East Coast Starlink launch, effectively completing the first ‘tranche’ of the constellation once the satellites already in space reach their operational orbits. In April, SpaceX COO and President Gwynne Shotwell stated that polar Starlink launches would begin not long after that 28-launch milestones.
The day before B1049 arrived, SpaceX filed the first regulatory documents for at least six Vandenberg Starlink launches between July 2021 and January 2022 – one mission per month. It’s hard to say when the first launch will come. With B1049 now on site, FCC permits in work, and a new berth lease active in Port of Long Beach, the only real piece of the equation missing is a drone ship to support polar Starlink launches. According to said FCC documents, SpaceX will continue to push Falcon 9 to its limits on the West Coast, recovering boosters 640 km (~400 mi) downrange after polar Starlink launches.
SpaceX’s two operational drone ships – OCISLY and JRTI – currently have their hands full on the East Coast. Transporting either to California will take several weeks, limiting SpaceX’s East Coast launch cadence during that period. SpaceX and its contractors are currently hard at work completing a third drone ship – A Shortfall of Gravitas (ASOG), but past experience suggests that the vessel is at least a few months away from completion.
Once a drone ship has arrived at SpaceX’s new West Coast docks, though, the company will have almost everything it needs to kick off polar Starlink launches.
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SpaceX set to launch astronauts and a classified Falcon Heavy mission on the same day
SpaceX plans three launches Thursday, including Crew-13 astronauts and Falcon Heavy’s first classified NRO mission.
SpaceX is lining up one of the busiest single days in its history, and the company offered a preview on Wednesday morning with a simple post on X: “Sunrise at pad 40.” The video and photos show Falcon 9 standing at Space Launch Complex 40 at Cape Canaveral, roughly a day before it is scheduled to carry four astronauts to the International Space Station.
That launch is only the first of three SpaceX missions planned for Thursday, October 1, across both coasts.
Sunrise at pad 40 pic.twitter.com/J7Qme4VvIX
— SpaceX (@SpaceX) September 30, 2026
Crew-13 is targeting liftoff at 11:10 a.m. ET, with a backup opportunity Friday at 10:47 a.m. ET. NASA astronaut Jessica Watkins will command the mission, with NASA’s Luke Delaney as pilot and Canadian Space Agency astronaut Joshua Kutryk and Roscosmos cosmonaut Sergey Teteryatnikov serving as mission specialists. According to NASA, Dragon is set to dock with the forward port of the station’s Harmony module around 8 p.m. ET, less than nine hours after launch. Watkins is the only member of the crew who has flown before, and Kutryk will become the first Canadian to reach orbit through NASA’s Commercial Crew Program.
The Falcon 9 booster is flying for the third time after supporting Crew-12 and a Starlink mission, and it will attempt a landing at Landing Zone 40 beside the pad. That site made its debut in February when the Crew-12 booster touched down there, as Teslarati reported at the time. Crew-13 will relieve the Crew-12 astronauts, who have been aboard the station since the middle of February.
On the West Coast, another Falcon 9 is scheduled to lift off from Vandenberg Space Force Base in a window running from 2:18 to 3:16 p.m. ET, a flight NASASpaceflight lists as a Transporter rideshare mission.
The day is set to close at 11:53 p.m. ET, when Falcon Heavy launches from Launch Complex 39A with NROL-97, the first National Reconnaissance Office payload ever to fly on the rocket. SpaceX rolled the vehicle out to the pad Tuesday night. Its two side boosters, which previously flew GOES-U, ViaSat-3 F3 and NASA’s Roman Space Telescope, will return to Landing Zones 1 and 2, while a new center core will be expended in the Atlantic. The Roman launch took place on August 30, so NROL-97 will come barely a month later as Falcon Heavy’s third flight of 2026 and 14th overall.
NASA taps SpaceX to launch the telescope that could unlock new worlds
If all three Florida boosters land as planned, it would be the first time the Space Coast has seen landings at LZ-40, LZ-1 and LZ-2 on the same day, according to the Orlando Sentinel, which has warned residents in Brevard, Orange and Volusia counties that more than one sonic boom is possible.
The schedule arrives just three days after Starship reached orbit for the first time on Flight 14 from Starbase, Texas, deploying 26 Starlink V3 satellites. If Thursday’s missions stay on time, SpaceX will have flown Starship, Falcon 9 and Falcon Heavy from four different pads in about four days.
Crew-13 is also the start of a longer run for Dragon. NASA recently added Crew-15, Crew-16 and Crew-17 to SpaceX’s contract in a $946 million modification, keeping Dragon as the agency’s only operational ride to the station while Boeing’s Starliner remains grounded.
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Tesla Cybercab and Semi have more in common than you might think
Although the two vehicles are built for completely different use cases, Tesla utilized engineering expertise while developing both the Cybercab and Semi to build a thermal architecture that would fit both vehicles. Of course, with some slight revisions.
The development was noted by Lars Moravy and Dan Priestley last week at Tesla’s Semi Handover event in Sparks, Nevada, where the company showed off its dedicated production facility for the Class 8 truck.
🚨 Tesla designed the integrated thermal systems for Cybercab and Semi at the same time as the vehicles were both in development
Tesla wanted to build one thermal system that worked with both vehicles, apart from small modifications.
Semi and Cybercab share parts 🤯 pic.twitter.com/KmzSsUbrcg
— TESLARATI (@Teslarati) September 25, 2026
Tesla’s decision to develop one thermal architecture for both the Cybercab and Semi is one of the more revealing engineering choices in the company’s 2026 lineup:
“We designed it at the same time we designed the Cybercab and we said okay we’re going to take our most efficient vehicle and our biggest vehicle and we’re going to take one thermal system and make it work for both.”
Core parts, meaning the compressor, pumps, and heat exchangers, are shared, with only modest changes to cooling-loop sizing and a larger radiator on the truck. The result, they said, is a compressor and thermal stack already proven across millions of miles, delivering “reliability from day one.”
Priestley also highlighted a practical payoff of the indirect design:
“There’s no AC lines, there’s no refrigerant lines…It comes from the factory fully charged, sealed with refrigerant, and it just exchanges coolant. It doesn’t actually run refrigerant up to the front of the vehicle.”
This eliminates potentially leak-prone plumbing that would otherwise require hands-on service, reducing overall uptime and potentially cutting into business margins. The megamanifold runs cabin HVAC and every powertrain heating and cooling loop at once, recapturing waste heat from motors and the battery instead of dumping it the way a diesel engine does.
The approach is just the latest chapter in a continuing story of stretching thermal solutions across wildly different vehicles. Model Y’s Octovalve evolved into the Super Manifold used on Cybertruck, and later Model S/X refreshes. Cybercab then introduced Supermanifold V3, which Tesla says is 80 percent automated to build and 38 percent more efficient than typical automotive thermal systems.
This thermal system is also shared with Cybercab – one thermal system for both our most efficient vehicle & our biggest vehicle
— Tesla Semi (@tesla_semi) September 25, 2026
Tesla has done the same with the 4680 cells, both being utilized in the Cybertruck and Semi, and with heat-pump compressors that Priestley noted were already common across the passenger-car fleet.
Concurrent development of crucial vehicle elements buys scale and reliability that a truck-only thermal system could not match. High-volume passenger car parts are cheaper and more accessible, which can give fleets a sealed, low-maintenance loop of operation from their first day of operation.
For owners and operators, that translates into less energy spent on cabin heat in the colder months, fewer refrigerant-related repairs, and a thermal architecture already stress-tested at passenger-car volumes before the first high-volume Semi left the lines in Nevada.
Elon Musk
Elon Musk weather update tips Tesla Roadster speculation into Plaid Mode
Tesla CEO Elon Musk certainly tipped off some details of the Tesla Roadster event with a broadening of information regarding the company’s decision to delay the unveiling for two weeks.
For years, people have speculated about what the Roadster will be capable of. While there have been plenty of things said about what it *could* do, we have not seen or been told by Tesla what it will actually be capable of.
However, over the past few days, Tesla’s weather updates have truly pushed the speculation into Plaid Mode, basically all but confirming the car will have some sort of aerial capability — whether that would be hovering or fully flying remains to be seen — but it definitely seems that it will be able to leave the ground intentionally.
“Because this event can only be held outdoors…”
Tesla posted on Monday that it would delay the Roadster event until October 15, and it indicated that it had to do this because the event “can only be held outdoors.”
With the potential SpaceX collaboration to develop cold-gas thrusters that will help the vehicle go airborne, doing this indoors is probably not a safe, or even plausible, possibility.
Roadster event update
We’ve been tracking the weather closely with local meteorologists, but given the severe conditions predicted & because this event can only be held outdoors, we’ve made the difficult decision to reschedule.
New date is October 15. Additional details to…
— Tesla (@Tesla) September 28, 2026
FAA Airspace Restriction
The FAA gave Tesla a Temporary Flight Restriction (TFR) for 10,000 feet above ground level, much higher than the typical 2,000-foot restrictions that are usually placed at SpaceX’s McGregor, Texas site.
Tesla Roadster event requires restricted airspace, and the FAA obliges
Some have said that this massive increase is due to Tesla’s need to restrict unauthorized drone use for spying on the event.
Elon Admits High Winds
“Due to high winds, the new Roadster demo is postponed by 2 weeks,” Musk said in a post on X yesterday.
Due to high winds, the new Roadster demo is postponed by 2 weeks https://t.co/dV3ojDh1iT
— Elon Musk (@elonmusk) September 30, 2026
A reply reading, “What’s strong wind got to do with a car demo with four grounded wheels?” was directly below Musk’s post, satirically and sarcastically probing for more details.
All signs are pointing toward an aerial demonstration for the Roadster.