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Livestream: SpaceX set for second Starhopper hop attempt after fixing Raptor bugs
SpaceX is reportedly ready to take a second stab at Starhopper’s second and final flight, rescheduled from August 26th to August 27th after an abort just milliseconds prior to Raptor’s main engine ignition.
According to CEO Elon Musk, that abort was automatically triggered by Raptor’s avionics when telemetry indicated an issue with the engine’s advanced system of torch igniters. Needed to safely start Raptor’s methane and oxygen preburners and ignite its the main combustion chamber, Musk believes that some relatively simple wiring issues in those igniters were to blame for Monday’s abort. As of this morning, Raptor’s igniters appear to have passed inspection and undergone any needed fixes and Starhopper is now scheduled for its 150m (500 ft) hop test no earlier than 5pm EDT (21:00 UTC), August 27th.
Updated August 27: (WATCH) SpaceX’s Starhopper hops itself into retirement after spectacular minute-long flight
Impressively accurate analysis!— Elon Musk (@elonmusk) August 27, 2019
Captured earlier today by visiting photographer Trevor Mahlmann, SpaceX technicians were observed working in and around Starhopper’s Raptor, the sixth such full-scale engine produced by SpaceX. One technician was seen literally inside Raptor’s nozzle, likely inspecting the business ends of the main combustion chamber’s igniters.
Head in the clou… thrust chamber, rather🚀
New igniters inbound? @elonmusk
⚙️/⬇️/🖼 : https://t.co/zWfJdm095L pic.twitter.com/fcmQwzEQWp— 📸Trevor Mahlmann🚀 (@TrevorMahlmann) August 27, 2019
During yesterday’s official SpaceX webcast, Starhopper aborted its hop test just milliseconds before main engine ignition, but Raptor SN06 appeared to briefly ignite one or both propellant preburners just prior to said abort. It’s unclear what exactly triggered the automatic abort, but preburner igniter issues would be far more challenging to repair in the field. SpaceX technicians could use fiber optic cameras to carefully inspect the torch igniters, but repairs would likely require a bit more work.
Live views of Starhopper test https://t.co/8ZFFFwErJF— SpaceX (@SpaceX) August 26, 2019
Should SpaceX choose to officially broadcast this second attempt, the company will post a link to the updated stream on its Twitter account. Yesterday’s tweet came roughly 10 minutes prior to Starhopper’s scheduled liftoff. Stay tuned for Starhopper’s second attempt at 5pm EDT.
If successful (and perhaps even if not), this flight test will be Starhopper’s last before retirement, making way for the first flights of Starship Mk1 and Mk2 prototypes in Texas and Florida.
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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.
Investor's Corner
Tesla analyst maintains $500 PT, says FSD drives better than humans now
The team also met with Tesla leaders for more than an hour to discuss autonomy, chip development, and upcoming deployment plans.
Tesla (NASDAQ:TSLA) received fresh support from Piper Sandler this week after analysts toured the Fremont Factory and tested the company’s latest Full Self-Driving software. The firm reaffirmed its $500 price target, stating that FSD V14 delivered a notably smooth robotaxi demonstration and may already perform at levels comparable to, if not better than, average human drivers.
The team also met with Tesla leaders for more than an hour to discuss autonomy, chip development, and upcoming deployment plans.
Analysts highlight autonomy progress
During more than 75 minutes of focused discussions, analysts reportedly focused on FSD v14’s updates. Piper Sandler’s team pointed to meaningful strides in perception, object handling, and overall ride smoothness during the robotaxi demo.
The visit also included discussions on updates to Tesla’s in-house chip initiatives, its Optimus program, and the growth of the company’s battery storage business. Analysts noted that Tesla continues refining cost structures and capital expenditure expectations, which are key elements in future margin recovery, as noted in a Yahoo Finance report.
Analyst Alexander Potter noted that “we think FSD is a truly impressive product that is (probably) already better at driving than the average American.” This conclusion was strengthened by what he described as a “flawless robotaxi ride to the hotel.”
Street targets diverge on TSLA
While Piper Sandler stands by its $500 target, it is not the highest estimate on the Street. Wedbush, for one, has a $600 per share price target for TSLA stock.
Other institutions have also weighed in on TSLA stock as of late. HSBC reiterated a Reduce rating with a $131 target, citing a gap between earnings fundamentals and the company’s market value. By contrast, TD Cowen maintained a Buy rating and a $509 target, pointing to strong autonomous driving demonstrations in Austin and the pace of software-driven improvements.
Stifel analysts also lifted their price target for Tesla to $508 per share over the company’s ongoing robotaxi and FSD programs.
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.