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SpaceX outfits first orbital-class Starship booster with grid fins, Raptor engines

Super Heavy Booster 4 has had four grid fins installed, been stacked to its full height, and has begun Raptor installation in a single two-day period. (NASASpaceflight - bocachicagal)

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4 years ago

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In the space of two days, SpaceX has outfitted Starship’s first orbital-class Super Heavy booster with four car-sized grid fins, stacked the rocket to its full height, and begun the process of installing up to 29 Raptor engines.

As part of what CEO Elon Musk has described as a “Starbase Surge,” SpaceX has reportedly sent hundreds of employees normaly stationed in California, Florida, and Central Texas to Boca Chica. There, SpaceX has been working for months to build Starship’s first orbital launch pad and first orbital-class ship and booster and prepare all three for an inaugural “Orbital Test Flight” as quickly as possible. Originally scheduled to occur no later than July 2021, Musk’s extremely ambitious target unsurprisingly came and went but SpaceX appears to be well on its way to an “aim for the Moon; miss; fall among the stars” situation as all the parts of Starship’s orbital launch debut begin to come together.

In the last few days, it’s become abundantly clear that SpaceX is likely moving faster than even its most optimistic followers expected.

On July 30th, after less than two days of assembly, Super Heavy Booster 4’s completed (upper) methane tank stack – 13 rings and ~25m (85 ft) tall was briefly rolled out of SpaceX’s Boca Chica ‘high bay.’ A few hours later, the booster tank was rolled back in and SpaceX technicians kicked off the installation of four car-sized steel grid fins. A day and a half later, all four fins were installed.

Unlike the famous cast titanium grid fins on Falcon boosters, Super Heavy’s fins are built out of welded steel (much heavier but magnitudes cheaper) and not designed to retract, meaning that they will remain in their deployed configuration at all times. While also allowing for a much simpler design, B4’s fixed (but rotatable) grid fins will also make it dramatically easier to catch Super Heavy boosters – as Elon Musk has said is the plan – on their grid fins using a giant tower with arms.

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Almost immediately after the last grid fin was installed, SpaceX moved Super Heavy B4’s larger (aft) liquid oxygen tank stack onto a stand optimized for transport and stacked the newly finned methane tank on top of the rocket, raising it to its full ~65m (~215 ft) height. After stacking, it takes a team of SpaceX welders at least several hours to join the two steel booster sections into one monolithic rocket.

At the same time as technicians were working to complete Booster 4’s airframe, SpaceX accepted delivery of no less than five Raptor engines, raising the total number of engines delivered in the last five days to at least 18 – including two Raptor Vacuum variants for Starship S20.

In a sign of the breakneck pace SpaceX is working at, teams began installing Raptor engines on Booster 4 before its two halves were fully welded together. In a matter of hours, no less than 12 Raptor Boost (RB) engines have been rolled out of one of SpaceX’s three Boca Chica factory tents and lined up for installation on the first flightworthy Super Heavy. Requiring 29 engines total, it’s not implausible that SpaceX is attempt to fully outfit Booster 4 with all of its Raptors before rolling the rocket down the road to the orbital launch pad.

According to Elon Musk, SpaceX could attempt to install the Super Heavy booster on the pad’s launch mount/table (integrated just days ago) as early as “~Tuesday” and the company has already filed for transport-related road closure on Monday afternoon.

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Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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Cybertruck

Tesla begins wide rollout of Full Self-Driving v14 to Cybertruck

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2 hours ago

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November 3, 2025

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Credit: Weibo (via YYDS on X)

Tesla has officially begun the wide rollout of Full Self-Driving (Supervised) v14 to the Cybertruck about a month after the company started rolling it out to other vehicles in the fleet.

On Monday, Tesla officially started rolling out v14.1.5 to Cybertruck owners, the first FSD v14 rollout for owners of the all-electric pickup.

Owners have been anxiously waiting for Tesla to begin the wide release of v14 to Cybertruck, as the company said it would refine the suite for the vehicle.

Tesla has finally started rolling out to many owners, who are reporting that their Cybertrucks are downloading Software Update 2025.38.8.5, which contains FSD v14.1.5:

Tesla has to be more cautious with rolling out FSD on the Cybertruck than on other vehicles for a few reasons. Initially, the Cybertruck utilizes an all-wheel steering system that turns differently than the S3XY lineup. This creates a challenge for the Tesla AI team as they have to cater to this specific maneuvering change.

Additionally, the Cybertruck is much larger, and the exterior cameras responsible for seeing the vehicle’s surroundings are placed differently than those of the other vehicles.

This requires additional calibration to ensure safety.

The full release notes for Full Self-Driving v14.1.5 are as follows:

  • Added Arrival Options for you to select where FSD should park: in a Parking Lot, on the Street, in a Driveway, in a Parking Garage, or at the Curbside.
  • Added handling to pull over or yield for emergency vehicles (e.g. police cars, fire trucks, ambulances).
  • Added navigation and routing into the vision-based neural network for real-time handling of blocked roads and detours.
  • Added additional Speed Profile to further customize driving style preference.
  • Improved handling for static and dynamic gates.
  • Improved offsetting for road debris (e.g. tires, tree branches, boxes).
  • Improve handling of several scenarios including: unprotected turns, lane changes, vehicle cut-ins, and school buses.
  • Improved FSD’s ability to manage system faults and recover smoothly from degraded operation for enhanced reliability.
  • Added alerting for residue build-up on interior windshield that may impact front camera visibility. If affected, visit Service for cleaning!

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Elon Musk shuts down Tesla ‘AMG’ division speculation: ‘Focus is autonomy’

“I think it’s best to leave that to the custom shops. Tesla’s focus is autonomous cars, building futuristic autonomous cars. We want the future to look like the future.”

Published

4 hours ago

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November 3, 2025

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Credit: Unplugged Performance

Tesla CEO Elon Musk was asked by Joe Rogan late last week whether the company would ever consider establishing an “AMG division” like Mercedes-Benz has established for powerful, race-inspired vehicles.

However, Musk turned down any talk of that, highlighting that the company is laser-focused on autonomous vehicles, seemingly hinting that any distraction from autonomy would be a detriment to the future.

Rogan drives a Tesla Model S himself, but it is not your run-of-the-mill all-electric sedan. Already outfitted with the Plaid powertrain that Tesla developed, Rogan took his vehicle to Unplugged Performance for a true performance outfitting.

The vehicle is completely overhauled with performance parts and seats. Known as the Model S-APEX, Rogan took delivery of it from Unplugged in January.

Rogan asked Musk on Friday during his most recent appearance on the Joe Rogan Experience podcast whether Tesla would ever establish an “AMG division” that would focus on catering Teslas to performance-based standards.

Musk said:

“I think it’s best to leave that to the custom shops. Tesla’s focus is autonomous cars, building futuristic autonomous cars. We want the future to look like the future.”

Tesla fans have said for years that the company should consider acquiring Unplugged Performance and its Upfit Tesla division, which recently outfitted the Las Vegas Metropolitan Police Department’s fleet of Cybertruck cruisers.

However, it seems Tesla will keep things separate. Musk is primarily focused on autonomy, which will drive the technology forward and drive shareholder growth. Something like an outfitter for performance would be a cool thing for the owners who have the interest and the money.

It’s not a tremendous revenue driver or anything that would contribute to the financial state of the company. Mercedes-Benz, for example, is more accessible for consumers as it sold over 140,000 units from its AMG brand in 2024.

Tesla Model Y driver starts race in reverse, still wins against AMG SUV

It helps with driving revenue higher by as much as 15 percent compared to similar models that are not AMGs. However, would Tesla see this much of a benefit? Likely not, because the Performance trim already caters to many owners.

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Cybertruck

Tesla Cybertruck fleet takes over at SpaceX’s Starbase

Interestingly, the Cybertruck uses the same exterior, a stainless steel alloy, as SpaceX rockets. This synergy between the two companies and their very different products shows a very unified mentality between Musk companies.

Published

6 hours ago

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November 3, 2025

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Credit: @derek1ee | X

Tesla Cybertrucks have taken over at SpaceX’s Starbase facility in Texas, as hundreds of the all-electric pickup trucks were spotted late last week rounding out a massive fleet of vehicles.

The Cybertruck fleet is geared toward replacing gas vehicles that are used at Starbase for everyday operations. The only surprise about this is that it was not done sooner:

Deliveries have been going on for a few weeks, as Cybertrucks have made their way across the state of Texas from Austin to Starbase so they could be included in SpaceX’s fleet of vehicles at the facility.

Interestingly, the Cybertruck uses the same exterior, a stainless steel alloy, as SpaceX rockets. This synergy between the two companies and their very different products shows a very unified mentality between Musk companies.

However, there are some other perspectives to consider as SpaceX is utilizing such a massive fleet of Cybertrucks. Some media outlets (unsurprisingly) are seeing this as a move of weakness by both Tesla and SpaceX, as the aerospace company is, in a sense, “bailing out” lagging sales for the all-electric pickup.

It’s no secret that Tesla has struggled with the Cybertruck this year, and deliveries have been underwhelming in the sense that the company was anticipating between 1 million and 2 million orders for the vehicle before it was widely produced.

A lot of things changed with the Cybertruck between its 2019 unveiling and 2023 initial deliveries, most notably, price.

The price of the Cybertruck swelled significantly and priced out many of those who had pre-ordered it. Some have weighed the option of whether this purchase was a way to get rid of sitting inventory.

However, it seems more logical to consider the fact that SpaceX was likely always going to transition to Teslas for its fleet, especially at Starship, at some point.

It doesn’t seem out of the question that one Musk company would utilize another Musk company’s products, especially considering the Cybertruck has been teased as the vehicle that would be present on Mars.

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