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SpaceX moves Super Heavy booster to make room for Mechazilla arm installation
For the second time, SpaceX has removed the first potentially flightworthy Super Heavy from Starbase’s orbital launch mount – this time to reportedly make room for the installation of a pair of huge ‘Mechazilla’ arms.
Designed with three primary purposes in mind, SpaceX has decided to outfit Starbase’s Starship launch tower – an almost 500 ft (150m) tall framework – with three massive arms that CEO Elon Musk has informally deemed “Mechazilla.” The first of those arms is a relatively simple swinging structure that has already been installed on the tower and outfitted with a giant claw-like appendage. Once a few more parts are installed and a bit more plumbing completed, that “quick disconnect arm” or QD arm will help stabilize Super Heavy during Starship installation and connect the massive reusable upper stage to the pad’s tank farm and power supplies while still on the ground.
The star of the show, though, has always been a pair of even larger arms that are hoped to one day all SpaceX to catch Super Heavy boosters and Starships out of the air.
Of course, those catcher arms – deemed chopsticks by SpaceX employees – have more than one purpose. Likely explaining why they were ever considered in the first place, SpaceX’s Starbase launch site – situated walking distance from the Gulf of Mexico on the South Texas coast – was always going to have to deal with extreme weather and high winds on a practically daily basis. Additionally, conditions that are already disruptive at sea level become a near-constant nightmare for vertical launch vehicle integration, where Starship and Super Heavy are effectively hollow cylinders with extensive surface areas that need to be regularly and precisely manipulated 50-150m (200-450 ft) above the ground.
Already, SpaceX regularly has to halt work involving cranes and boom lifts at Starbase. For Starbase (Boca Chica) to ever be able to support regular orbital Starship launches, let alone the dozens to hundreds per year Musk has hinted at, cranes were never going to be a viable long-term solution for the all-weather capabilities and rapid reusability SpaceX requires. In other words, whether SpaceX ever actually manages to routinely ‘catch’ the world’s largest rocket booster and upper stage in the future, a tower with giant arms (or some other exotic crane-free solution) was always going to be needed at Starbase.
-->Mauricio, thanks for the shout-out. I got some great feedback from folks and updated this diagram once more. Added another @NicAnsuini photo to show the scale of these parts! pic.twitter.com/o54hdBITfL— LunarCaveman (@LunarCaveman) September 16, 2021
This is all to say that the Starship launch tower’s massive pair of arms – (in)famous for Musk’s plans to catch rockets – have a more immediate and guaranteed purpose: lifting, stacking, and otherwise manipulating Starship and Super Heavy in almost all weather conditions. Using tiny hardpoints located just under Super Heavy’s grid fins and (once installed) under Starship’s forward flaps, the chopstick arms will be mounted on a carriage that will attach to rails installed on the exterior of three of the tower’s arms. A complex system of cables, winches, motors, and pulleys will then attach to that carriage, giving the carriage and its arms the ability to move up and down the tower.
In theory, that means that the launch tower arms will be able to drop down, grab Super Heavy off of a SpaceX transporter, and lift it onto the orbital launch mount. Then, once the quick disconnect arm has swung into place and ‘grabbed’ Super Heavy’s interstage to secure it, the main arms will again drop down, grab Starship off of another transporter, and raise the 50m (~165 ft) rocket around 100m off the ground to install it on top of Super Heavy. Finally, the QD arm can then connect Starship to the pad systems.
SpaceX has been working around the clock on those chopstick arms for months. However, thanks to information shared by a forum member who visited Starbase and briefly chatted with one of the SpaceX technicians on-site, they might be almost finished. According to the employee they spoke with, SpaceX planned to temporarily remove Super Heavy Booster 4 from the orbital launch mount to make room for Mechazilla chopstick arm installation as early as this weekend (now come and gone) or next week. Mere days later, SpaceX returned B4 to a transport stand and moved the booster out of the way. In other words, having already been proven right with Super Heavy, it appears that SpaceX really does intend to install the Starship launch tower’s chopstick arms and carriage as early as this week. Stay tuned for more!
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Elon Musk makes a key Tesla Optimus detail official
“Since we are naming the singular, we will also name the plural, so Optimi it is,” Musk wrote on X.
Tesla CEO Elon Musk just made a key detail about Optimus official. In a post on X, the CEO clarified some key wording about Optimus, which should help the media and the public become more familiar with the humanoid robot.
Elon Musk makes Optimus’ plural term official
Elon Musk posted a number of Optimus-related posts on X this weekend. On Saturday, he stated that Optimus would be the Von Neumann probe, a machine that could eventually be capable of replicating itself. This capability, it seems, would be the key to Tesla achieving Elon Musk’s ambitious Optimus production targets.
Amidst the conversations about Optimus on X, a user of the social media platform asked the CEO what the plural term for the humanoid robot will be. As per Musk, Tesla will be setting the plural term for Optimus since the company also decided on the robot’s singular term. “Since we are naming the singular, we will also name the plural, so Optimi it is,” Musk wrote in his reply on X.
This makes it official. For media outlets such as Teslarati, numerous Optimus bots are now called Optimi. It rolls off the tongue pretty well, too.
Optimi will be a common sight worldwide
While Musk’s comment may seem pretty mundane to some, it is actually very important. Optimus is intended to be Tesla’s highest volume product, with the CEO estimating that the humanoid robot could eventually see annual production rates in the hundreds of millions, perhaps even more. Since Optimi will be a very common sight worldwide, it is good that people can now get used to terms describing the humanoid robot.
-->During the Tesla 2025 Annual Shareholder Meeting, Musk stated that the humanoid robot will see “the fastest production ramp of any product of any large complex manufactured product ever,” starting with a one-million-Optimi-per-year production line at the Fremont Factory. Giga Texas would get an even bigger Optimus production line, which should be capable of producing tens of millions of Optimi per year.
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Tesla is improving Giga Berlin’s free “Giga Train” service for employees
With this initiative, Tesla aims to boost the number of Gigafactory Berlin employees commuting by rail while keeping the shuttle free for all riders.
Tesla will expand its factory shuttle service in Germany beginning January 4, adding direct rail trips from Berlin Ostbahnhof to Giga Berlin-Brandenburg in Grünheide.
With this initiative, Tesla aims to boost the number of Gigafactory Berlin employees commuting by rail while keeping the shuttle free for all riders.
New shuttle route
As noted in a report from rbb24, the updated service, which will start January 4, will run between the Berlin Ostbahnhof East Station and the Erkner Station at the Gigafactory Berlin complex. Tesla stated that the timetable mirrors shift changes for the facility’s employees, and similar to before, the service will be completely free. The train will offer six direct trips per day as well.
“The service includes six daily trips, which also cover our shift times. The trains will run between Berlin Ostbahnhof (with a stop at Ostkreuz) and Erkner station to the Gigafactory,” Tesla Germany stated.
Even with construction continuing at Fangschleuse and Köpenick stations, the company said the route has been optimized to maintain a predictable 35-minute travel time. The update follows earlier phases of Tesla’s “Giga Train” program, which initially connected Erkner to the factory grounds before expanding to Berlin-Lichtenberg.
-->Tesla pushes for majority rail commuting
Tesla began production at Grünheide in March 2022, and the factory’s workforce has since grown to around 11,500 employees, with an estimated 60% commuting from Berlin. The facility produces the Model Y, Tesla’s best-selling vehicle, for both Germany and other territories.
The company has repeatedly emphasized its goal of having more than half its staff use public transportation rather than cars, positioning the shuttle as a key part of that initiative. In keeping with the factory’s sustainability focus, Tesla continues to allow even non-employees to ride the shuttle free of charge, making it a broader mobility option for the area.
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Tesla Model 3 and Model Y dominate China’s real-world efficiency tests
The Tesla Model 3 posted 20.8 kWh/100 km while the Model Y followed closely at 21.8 kWh/100 km.
Tesla’s Model 3 and Model Y once again led the field in a new real-world energy-consumption test conducted by China’s Autohome, outperforming numerous rival electric vehicles in controlled conditions.
The results, which placed both Teslas in the top two spots, prompted Xiaomi CEO Lei Jun to acknowledge Tesla’s efficiency advantage while noting that his company’s vehicles will continue refining its own models to close the gap.
Tesla secures top efficiency results
Autohome’s evaluation placed all vehicles under identical conditions, such as a full 375-kg load, cabin temperature fixed at 24°C on automatic climate control, and a steady cruising speed of 120 km/h. In this environment, the Tesla Model 3 posted 20.8 kWh/100 km while the Model Y followed closely at 21.8 kWh/100 km, as noted in a Sina News report.
These figures positioned Tesla’s vehicles firmly at the top of the ranking and highlighted their continued leadership in long-range efficiency. The test also highlighted how drivetrain optimization, software management, and aerodynamic profiles remain key differentiators in high-speed, cold-weather scenarios where many electric cars struggle to maintain low consumption.
Xiaomi’s Lei Jun pledges to continue learning from Tesla
Following the results, Xiaomi CEO Lei Jun noted that the Xiaomi SU7 actually performed well overall but naturally consumed more energy due to its larger C-segment footprint and higher specification. He reiterated that factors such as size and weight contributed to the difference in real-world consumption compared to Tesla. Still, the executive noted that Xiaomi will continue to learn from the veteran EV maker.
“The Xiaomi SU7’s energy consumption performance is also very good; you can take a closer look. The fact that its test results are weaker than Tesla’s is partly due to objective reasons: the Xiaomi SU7 is a C-segment car, larger and with higher specifications, making it heavier and naturally increasing energy consumption. Of course, we will continue to learn from Tesla and further optimize its energy consumption performance!” Lei Jun wrote in a post on Weibo.
-->Lei Jun has repeatedly described Tesla as the global benchmark for EV efficiency, previously stating that Xiaomi may require three to five years to match its leadership. He has also been very supportive of FSD, even testing the system in the United States.
Elon Musk makes a key Tesla Optimus detail official
Tesla is improving Giga Berlin’s free “Giga Train” service for employees
