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SpaceX fires up Falcon 9 for first flight-proven ‘national security’ launch
On June 12th, SpaceX successfully fired up a once-flown Falcon 9 booster in the lead-up to the company’s fourth launch of an upgraded GPS III navigation satellite for the US military.
Dating back several years, SpaceX has won a vast majority of GPS III launches thanks to Falcon 9’s exceptional combination of reliability and affordability, securing all five competitively-awarded contracts. The company aced its first GPS III launch in December 2019, expending a brand new Falcon 9 booster (B1054) due to customer – not performance – requirements necessary to ensure extreme margins in the event of some kind of anomaly or underperformance during launch.
In June 2020, SpaceX once again launched a GPS III satellite for the US military, though this time the company was allowed to attempt to land the Falcon 9 booster supporting the mission – which it successfully recovered without issue. Less than five months after GPS III SV03’s successful launch, SpaceX turned around and launched GPS III SV04 – again with an all-new Falcon 9 rocket – and recovered the booster at sea. A few months prior, however, the US Space and Missile Systems Center (SMC) announced a contract modification that would allow SpaceX to begin reusing Falcon 9 boosters on National Security Space Launch (NSSL) missions – beginning with the company’s fourth GPS III launch.
Seven months later, SMC revealed that it has officially cleared SpaceX to begin launching GPS III (and other official NSSL) satellites on flight-proven Falcon rockets. Notably, that might include a Falcon Heavy launch – USSF-52 – planned as early as January 2022 that could reuse two new side boosters scheduled to debut on USSF-44 as early as October 2021.
In the meantime, though, GPS III SV05 – scheduled to launch no earlier than (NET) 12:09 pm EDT (16:09 UTC), Thursday, June 17th – is just two days away from becoming the first NSSL (formerly EELV) satellite to launch on a flight-proven commercial rocket. GPS III SV05 will reuse the same Falcon 9 booster (B1062) that successfully launched GPS III SV04 seven months prior.
While an extremely slow turnaround relative to any other modern Falcon 9 or Falcon Heavy booster, those seven months mainly gave the US military margin to fully certify flight-proven Falcons and satellite manufacturer Lockheed Martin time to deal with shortage and coronavirus-related delays. On June 12th, after rolling out to SpaceX’s Cape Canaveral LC-40 launch pad, GPS III SV05’s Falcon 9 rocket completed a wet dress rehearsal that culminated in a successful several-second static fire of booster B1062.
Now cleared for flight, Falcon 9 will be brought horizontal and roll back to LC-40’s integration hangar, where SpaceX will install the encapsulated GPS III SV05 satellite and payload fairing on top of the rocket’s expendable second stage.
The integrated payload assembly rolled from a nearby payload processing facility to LC-40 on June 13th, giving SpaceX four days to complete integration, roll Falcon 9 back out to the launch pad, and prepare the rocket for flight. Now alone on the East Coast for the first time in 12 months, drone ship Just Read The Instructions (JRTI) departed Port Canaveral for the GPS III SV05 booster recovery zone on the same day, followed by the latest in a line of temporary fairing recovery ships on June 14th to scoop the mission’s nosecone halves out of the Atlantic.
L-3 weather forecasts predict a 40% chance of delay on June 17th, improving to 30% on June 18th. Stay tuned for webcast details as SpaceX nears the first of many flight-proven launches for the US military.
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.
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.
Tesla has secured $30 billion in fresh credit lines from Citibank and Wells Fargo in an effort to scale its biggest current projects.
Tesla agreed to a $20 billion three-year delayed-draw term loan facility from Citibank, it announced on Tuesday. Additionally, it signed a five-year, $8 billion revolving credit facility and a $2 billion, 364-day term credit facility with Wells Fargo.
In a filing with the Securities and Exchange Commission (SEC), that it “may draw” from the $20 billion delayed-draw term “from time to time” and “no more than ten times during the 18 months following the closing date.” This loan matures on September 29, 2029.
The five-year revolving facility from Wells Fargo will also be accessed by Tesla “from time to time,” and will become due and payable on September 29, 2031. Tesla can request two separate one-year extensions.
On the $2 billion, 364-day revolving loan, it becomes due and payable on September 28, 2027. Tesla can also increase its additional commitments to an additional $4 billion across the Revolving Facilities. This would increase the total facilities to $14 billion. Tesla said it does not plan to utilize any of these loans in 2026.
Tesla plans to utilize the money to help prop up its ambitions to scale its biggest products, each of which is either in early launch phases or still in development. Of course, we’re talking about Cybercab and Semi, which have launched, and Optimus, which is still under heavy development and working toward initial release.
All three Tesla products have one thing in common: they’ve all required Tesla to build new manufacturing lines for them.
For the Semi, Tesla built a brand new factory in Sparks, Nevada, adjacent to the Tesla Gigafactory. For Optimus, Tesla sunset Model S and X production at the Fremont Factory, which brought an end to the two flagship models, thus creating manufacturing space for the humanoid robot. Finally, Cybercab is being built at Gigafactory Texas and officially entered production earlier this year.
The cash will help Tesla bolster its finances for the continuing development of these products. Tesla said that it forecasts its CapEx to be over $25 billion, up from just over $8.5 billion last year. These loans surely help with that spending.
Tesla Cybercab and Semi have more in common than you might think
Elon Musk weather update tips Tesla Roadster speculation into Plaid Mode
