SpaceX
SpaceX’s first Falcon 9 Block 5 booster casualty battered but still intact in aerial photos
Shortly after successfully sending a reused Cargo Dragon spacecraft on its way towards the International Space Station (ISS), SpaceX Falcon 9 Block 5 booster B1050 experienced an anomaly with its grid fins during a planned landing, resulting in a shockingly soft (but unintentional) landing just off the Florida coast.
By some minor miracle, the drastically off-nominal loads experienced by the booster during its unintended departure from controlled flight somehow did not rise to the bar of structural failure. Nevertheless, now floating a handful of miles east of Port Canaveral’s mouth, B1050 did not make it through the ordeal unscathed.
https://twitter.com/_TomCross_/status/1070742919986991107
A little more than 24 hours after the booster found itself floating sideways in the Atlantic Ocean, B1050 had floated a solid ten miles south of its original position into waters and airspace that no longer fell under the purview of Cape Canaveral Air Force Station, technically a military outpost. As the captains of tugboat Eagle and SpaceX support vessel GO Quest discussed the logistics of returning the booster to port with the local harbormaster and US Coast Guard, Teslarati photographer Tom Cross chartered a local helicopter to get a slightly better view of the waterlogged rocket and its ad-hoc recovery operations.
A casualty of war (with the air)
Second only to the fact that the booster appears to be in disproportionately good shape considering the circumstances, by far the most noteworthy feature of the newest addition to SpaceX’s marine fleet is the sheer damage suffered by B1050’s interstage, the black carbon fiber composite structure that topsFalcon 9 Block 5 boosters and hosts its grid fins and stage separation mechanism.
-->Revealed from an aerial perspective, it almost looks as if one side of the composite cylinder was smashed with a giant hammer, tearing off at least 20% of the entire interstage – including one of four titanium grid fins – while leaving another large segment hanging on by only partially-figurative carbon fiber threads.
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- Falcon 9 B1050 is seen here shortly before launch with an intact interstage. (Tom Cross)
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- B1050 viewed from Cocoa Beach. (Tom Cross)
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- Falcon 9 B1050’s interstage, or what’s left of it. (Tom Cross)
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- RIP grid fin. (Tom Cross)
It’s not 100% clear why B1050’s interstage was so readily destroyed but a narrative can certainly be drawn from the current public record. After its grid fins lost hydraulic power and became stuck at an extreme angle, B1050 almost immediately lost control and began rapidly and quite brutally spinning and flailing, tossed around as it hurtled through the air at supersonic speeds. Being a predominately smooth cylinder, Falcon 9’s first stage is inherently prone to rotation in the presence of high-velocity air currents, which is why its grid fins are an absolute necessity for maintaining control authority during in-atmosphere “flights”.
Engines stabilized rocket spin just in time, enabling an intact landing in water! Ships en route to rescue Falcon. pic.twitter.com/O3h8eCgGJ7
— Elon Musk (@elonmusk) December 5, 2018
-->In a show that will turn the stomach of anyone familiar with a rocket’s typically narrow load tolerances, Falcon 9 B1050 experienced extreme aerodynamic stresses during the worst of its uncontrolled tumble, to the extent that the entire booster and interstage can be seen visibly twisting at least 5 degrees left and right from the perspective of an onboard camera. In the video above, focus on the center of Falcon 9’s grid fins during the first and last 5-10 seconds to properly visualize the extreme forces at play.
It might look fairly innocent to the untrained eye, but keep in mind that Falcon 9’s interstage is no more than a couple of inches thick and is absolutely massive, stretching 3.7m (~12 ft) in diameter. Perhaps even more importantly, the damage to the interstage has almost without a doubt rendered it unusable from the perspective of SpaceX’s established methods of safely moving and manipulating Falcon 9 boosters.
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- Technicians attach an older interstage-grabber to lift B1046 after its first recovery. (Tom Cross)
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- One of SpaceX’s East Coast interstage jigs is pictured here atop B1049. (Tom Cross)
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- A Falcon 9 Block 5 booster bares its interstage and pusher rod, offering a perfect illustration of its scale. (Bloomberg)
All of those methods rely on adapters that attach to the interstage to lift the rocket vertically or support part of its ~30-ton dry mass horizontally. Lacking a sound interstage, it’s now entirely unclear how SpaceX might go about getting B1050 onto land without damaging it further. In simpler terms, this bodes very, very badly for any plans to safely reuse B1050 in the near (or distant) future. After suffering loads that severely weakened and ultimately tore its interstage to pieces, it’s reasonable to assume that the rest of the rocket’s lithium-aluminum propellant tanks experienced stresses that are at least roughly comparable.
If that’s the case, perhaps the only real hope for B1050’s ‘reuse’ will be the recovery of certain subcomponents and miscellaneous parts that may have made it through the ordeal unscathed or with only minor damage. The three remaining titanium grid fins are a guaranteed recovery, while COPVs, cold gas thrusters, avionics boxes, and maybe even some of its nine Merlin 1D engines could be salvageable with some level of refurbishment.
-->In the meantime, the tentative plan right now is to two B1050 into Port Canaveral sometime after dawn tomorrow, either ending up at drone ship OCISLY’s berth or another less-developed section of the port.
For prompt updates, on-the-ground perspectives, and unique glimpses of SpaceX’s rocket recovery fleet check out our brand new LaunchPad and LandingZone newsletters!
Elon Musk
SpaceX maintains unbelievable Starship target despite Booster 18 incident
It appears that it will take more than an anomaly to stop SpaceX’s march towards Starship V3’s refinement.
SpaceX recently shared an incredibly ambitious and bold update about Starship V3’s 12th test flight.
Despite the anomaly that damaged Booster 18, SpaceX maintained that it was still following its plans for the upgraded spacecraft and booster for the coming months. Needless to say, it appears that it will take more than an anomaly to stop SpaceX’s march towards Starship V3’s refinement.
Starship V3 is still on a rapid development path
SpaceX’s update was posted through the private space company’s official account on social media platform X. As per the company, “the Starbase team plans to have the next Super Heavy booster stacked in December, which puts it on pace with the test schedule planned for the first Starship V3 vehicle and associated ground systems.”
SpaceX then announced that Starship V3’s maiden flight is still expected to happen early next year. “Starship’s twelfth flight test remains targeted for the first quarter of 2026,” the company wrote in its post on X.
Elon Musk mentioned a similar timeline on X earlier this year. In the lead up to Starshp Flight 11, which proved flawless, Musk stated that “Starship V3 is a massive upgrade from the current V2 and should be through production and testing by end of year, with heavy flight activity next year.” Musk has also mentioned that Starship V3 should be good enough to use for initial Mars missions.
-->Booster 18 failure not slowing Starship V3’s schedule
SpaceX’s bold update came after Booster 18 experienced a major anomaly during gas system pressure testing at SpaceX’s Massey facility in Starbase, Texas. SpaceX confirmed in a post on X that no propellant was loaded, no engines were installed, and personnel were positioned at a safe distance when the booster’s lower section crumpled, resulting in no injuries.
Still, livestream footage showed significant damage around the liquid oxygen tank area of Booster 18, leading observers to speculate that the booster was a total loss. Booster 18 was among the earliest vehicles in the Starship V3 series, making the failure notable. Despite the setback, Starship V3’s development plans appear unchanged, with SpaceX pushing ahead of its Q1 2026 test flight target.
Elon Musk
SpaceX issues statement on Starship V3 Booster 18 anomaly
The incident unfolded during gas-system pressure testing at the company’s Massey facility in Starbase, Texas.
SpaceX has issued an initial statement about Starship Booster 18’s anomaly early Friday. The incident unfolded during gas-system pressure testing at the company’s Massey facility in Starbase, Texas.
SpaceX’s initial comment
As per SpaceX in a post on its official account on social media platform X, Booster 18 was undergoing gas system pressure tests when the anomaly happened. Despite the nature of the incident, the company emphasized that no propellant was loaded, no engines were installed, and personnel were kept at a safe distance from the booster, resulting in zero injuries.
“Booster 18 suffered an anomaly during gas system pressure testing that we were conducting in advance of structural proof testing. No propellant was on the vehicle, and engines were not yet installed. The teams need time to investigate before we are confident of the cause. No one was injured as we maintain a safe distance for personnel during this type of testing. The site remains clear and we are working plans to safely reenter the site,” SpaceX wrote in its post on X.
Incident and aftermath
Livestream footage from LabPadre showed Booster 18’s lower half crumpling around the liquid oxygen tank area at approximately 4:04 a.m. CT. Subsequent images posted by on-site observers revealed extensive deformation across the booster’s lower structure. Needless to say, spaceflight observers have noted that Booster 18 would likely be a complete loss due to its anomaly.
Booster 18 had rolled out only a day earlier and was one of the first vehicles in the Starship V3 program. The V3 series incorporates structural reinforcements and reliability upgrades intended to prepare Starship for rapid-reuse testing and eventual tower-catch operations. Elon Musk has been optimistic about Starship V3, previously noting on X that the spacecraft might be able to complete initial missions to Mars.
-->Elon Musk
SpaceX Starship Version 3 booster crumples in early testing
Photos of the incident’s aftermath suggest that Booster 18 will likely be retired.
SpaceX’s new Starship first-stage booster, Booster 18, suffered major damage early Friday during its first round of testing in Starbase, Texas, just one day after rolling out of the factory.
Based on videos of the incident, the lower section of the rocket booster appeared to crumple during a pressurization test. Photos of the incident’s aftermath suggest that Booster 18 will likely be retired.
Booster test failure
SpaceX began structural and propellant-system verification tests on Booster 18 Thursday night at the Massey’s Test Site, only a few miles from Starbase’s production facilities, as noted in an Ars Technica report. At 4:04 a.m. CT on Friday, a livestream from LabPadre Space captured the booster’s lower half experiencing a sudden destructive event around its liquid oxygen tank section. Post-incident images, shared on X by @StarshipGazer, showed notable deformation in the booster’s lower structure.
Neither SpaceX nor Elon Musk had commented as of Friday morning, but the vehicle’s condition suggests it is likely a complete loss. This is quite unfortunate, as Booster 18 is already part of the Starship V3 program, which includes design fixes and upgrades intended to improve reliability. While SpaceX maintains a rather rapid Starship production line in Starbase, Booster 18 was generally expected to validate the improvements implemented in the V3 program.
Tight deadlines
SpaceX needs Starship boosters and upper stages to begin demonstrating rapid reuse, tower catches, and early operational Starlink missions over the next two years. More critically, NASA’s Artemis program depends on an on-orbit refueling test in the second half of 2026, a requirement for the vehicle’s expected crewed lunar landing around 2028.
-->While SpaceX is known for diagnosing failures quickly and returning to testing at unmatched speed, losing the newest-generation booster at the very start of its campaign highlights the immense challenge involved in scaling Starship into a reliable, high-cadence launch system. SpaceX, however, is known for getting things done quickly, so it would not be a surprise if the company manages to figure out what happened to Booster 18 in the near future.
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