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SpaceX transports Falcon 9 to launch site ahead of Block 5’s second expendable launch ever
Photos published on July 28th by customer Spacecom show a sooty SpaceX Falcon 9 booster and fresh upper stage on their way to LC-40 for the launch of the AMOS-17 communications satellite, scheduled to lift off no earlier than 6:51 pm EDT (22:51 UTC), August 3rd.
Sadly, the booster will reportedly be expended during the launch. According to Spacecom, AMOS-17 – built by Boeing – is an undeniably large satellite, weighing more than 6500 kg (14,300 lb) and featuring a solar array wingspan of ~35m (115 ft). SpaceX has certainly launched larger satellites than AMOS-17 and still recovered their Falcon 9 boosters, but this mission is somewhat unique and SpaceX is obviously willing to go the extra mile in this case.
In a surprise development, Spacecom officially confirmed that AMOS-17 will be SpaceX’s second expendable Falcon 9 Block 5 launch in the rocket’s ~15 months of operations, following in the footsteps of its expendable December 2018 launch debut. This is more than a little disappointing, thanks in large part to the fact that SpaceX has developed Falcon 9 (and Heavy) reusability to such a level of maturity that fully expendable Falcon launches just feel wrong.
In fact, just a month ago, SpaceX reached a major milestone of reusability when it recovered two flight-proven Falcon Heavy boosters and became the first company in history to launch and land more orbital-class rocket boosters than it has expended (as of June 2019: 81 launched, 43 landed). SpaceX followed this up with landing #44 after Falcon 9 B1056.2 successfully completed its second launch on July 25th.
While expending a Block 5 booster that SpaceX CEO Elon Musk has stated could launch upwards of 20-30 times is certainly disappointing, the sting of Block 5’s second expendable mission is at least soothed by the knowledge that it will be this booster’s third and final launch. The first expendable Block 5 launch – the US Air Force’s GPS III SV01 mission – made use of a brand new booster (B1054).
A (hopefully) worthy sacrifice
In a small way, Falcon 9 B1047’s premature demise could easily be viewed as a sort of symbolic eye-for-an-eye sacrifice. Although not a literal 1:1 replacement, AMOS-17 is still essentially a follow-on to Amos-6, destroyed on September 1st, 2016 when Falcon 9 suffered an exotic COPV failure that led to a massive explosion (Musk called it a ‘fast fire’).
Installed on top of the rocket during what was meant to be a pre-launch static fire test, the ~$200M+ Amos-6 satellite was not spared from the destruction and owner Spacecom ultimately received an insurance settlement it then used (in part) to purchase AMOS-17. Additionally, instead of accepting a cash payout from SpaceX, Spacecom chose the contractual alternative: a free Falcon 9 launch of their choice.
Is it a coincidence that a Block 5 booster is going to be expended as part of that replacement launch? Almost certainly, yes. At a minimum, SpaceX – essentially launching for free per a contractual agreement with Spacecom – has clearly decided along with Spacecom that putting all of Falcon 9’s energy into AMOS-17 is preferable to withholding margin for a landing.
With Falcon 9 B1047.2 in an expendable configuration, SpaceX can take a no-holds-barred approach towards delivering Spacecom’s AMOS-17 to the highest orbit possible. The higher the geostationary transfer orbit (GTO) Falcon 9 can launch AMOS-17 to, the faster the satellite can begin serving customers and thus generating revenue for Spacecom. Combined with the fact that more than half of AMOS-17’s massive 6.5-ton mass is chemical propellant, the spacecraft – pending a healthy launch and on-orbit commissioning – could be ready to start serving customers just a month or two after lift-off.
Falcon 9 B1047 will be missed, but the booster’s demise is an understandable cost of SpaceX prioritizing customer Spacecom’s launch experience above the company’s own best interests.
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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
