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SpaceX adds a second drone ship to its East Coast rocket recovery fleet
On December 10th, SpaceX’s East Coast rocket recovery fleet added a second drone ship to its ranks in a bid to expand its capabilities to support dozens of annual Falcon 9 and Heavy launches, as well as experimental Starship and Super Heavy booster recoveries.
Formerly stationed out of Port of Los Angeles to support SpaceX’s once-substantial West Coast launch manifest, the need for West Coast launches has rapidly dried up over the last six months. That drought had such a long lead that SpaceX decided to transfer drone ship Just Read The Instructions (JRTI) through the Panama Canal, moving the vessel several thousand miles from Port of Los Angeles to Port Canaveral, Florida.
JRTI made it through the Canal several months ago and headed East towards Florida before making an intriguing and lengthy pit stop in a Louisiana port. While there, marine engineers and technicians performed a number of unknown tasks presumed to be a scheduled period of inspections and maintenance. In the last few weeks JRTI spent in Louisiana, SpaceX loaded the drone ship with more than a dozen huge generators and power controllers, as well as six massive maneuvering thrusters.
Although perspectives were lacking while JRTI was docked in LA, it was clear that some (or all) of the new hardware was meant for the drone ship, indicating that the rocket recovery platform could be in for some major upgrades. The aforementioned thrusters are much larger and appear to be heavier than JRTI’s former blue azimuth thrusters, four of which also adorn Florida-based drone ship Of Course I Still Love You (OCISLY).
Those massive thrusters are presumably meant for JRTI (and possibly OCISLY). The fact that they have been delivered alongside an even larger number of generators – far more than are usually present on SpaceX drone ships – indicates that their power output is probably larger, too. It’s not clear how much more powerful they are but one goal is unequivocal: with more powerful thrusters, SpaceX’s drone ships should be much more tolerant of bad weather, meaning that SpaceX will be able to launch Falcon 9, Falcon Heavy, and Starship without having to worry as much about the weather hundreds of miles downrange.
Depending on how powerful they are, it’s also possible that those upgraded thrusters are strong enough to independently power drone ships to and from their ocean landing zones. As of now, SpaceX must contract days of tugboat services to tow drone ships to and from their landing zones, by far one of the biggest recurring costs for booster recoveries. If a major power supply upgrade and much larger thrusters are indeed enough to enable independent cruise capabilities, it could significantly streamline SpaceX’s drone ship recovery efforts, cutting costs and increasing flexibility and availability.
It’s hard to say why drone ship JRTI only brought six new thrusters with it, given that SpaceX’s East Coast fleet now has two drone ships and four thrusters are needed to enable stationkeeping on just one of them. Perhaps two more thrusters are on backorder and will be delivered directly to Port Canaveral. More likely, only one drone ship – likely JRTI – will initially be upgraded with new thrusters and power equipment, leaving two spare thrusters in case those installed are damaged by recovery attempts or fail for more mundane reasons.
In the past, drone ship OCISLY has suffered a handful of recovery anomalies that forced SpaceX to replace the vessel’s blue azimuth thrusters and their associated hydraulic equipment. In some cases, a lack of replacement thrusters lead SpaceX to scavenge drone ship JRTI, leaving the ship without thrusters for several months. With these latest upgrades, SpaceX has presumably learned from those past mistakes and ensured that several spare generators and thrusters are on hand.
Given that SpaceX has yet to install those upgraded thrusters or generators on either JRTI or OCISLY, as well as the general uncertainty surrounding their purpose, it’s safe to say that the next several weeks will be exciting. For now, it’s unknown when JRTI will be ready to support its first East Coast rocket recovery, but there will be plenty of launches to choose from once she is.
With two drone ships now stationed out of Port Canaveral, SpaceX will be able to support a more capable Falcon Heavy configuration, expending the center core while recovering both side boosters at sea. SpaceX will also be able to attempt experimental Starship and Super Heavy drone ship landings while still having a spare ship to support its regular Falcon 9 missions. Most importantly, two drone ships will allow SpaceX to reach launch/landing cadences and turnaround times previously impossible with a single ship, an absolute necessity if the company hopes to achieve its goal of ~24 Starlink launches on top of 10+ commercial launches in 2020.
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Elon Musk
Tesla shows what Roadster drivers will see on screen before thruster activation
Tesla’s Roadster video reveals a fighter jet inspired cockpit with a 5,500 PSI thruster gauge.
Tesla has given future owners their clearest look yet at the cockpit of its next generation Roadster. In a 34 second video posted to X on Friday afternoon, the company walked through the car’s touchscreen with a caption: “Inspired by fighter jet cockpits, Roadster’s interface was designed around the pilot.”
The clip opens on a black screen with red graphics and a 3D wireframe of the car, which sits beside the Roadster’s squared off yoke. Tapping parts of the model brings up controls for the rear wing, including low drag and high downforce positions, along with a charging page with a charge limit bar and a small music player. A row of tabs along the bottom reads Home, Vehicle, Listen, Climate and Navigate.
Most of the video is spent in Track Mode. The dashboard shows a live circuit map, a list of session lap times, brake and motor temperatures, and pressure and temperature readouts for each tire. A setup page lets the driver pick Auto, Low Drag, High Downforce or Custom aero modes, adjust aero balance and brake balance, and switch stability and traction control off. Along the bottom, a status bar reads “Thruster · 5,500 PSI” next to a “Boost Ready” indicator.
That gauge ties the software to the hardware Tesla showed off near Waco, Texas on October 15. The Thrust and Rocket versions use cold gas thrusters fed by carbon overwrapped pressure vessels, and Tesla lists 0 to 60 mph times of under 0.9 seconds and under 0.59 seconds for them, as Teslarati detailed in its breakdown of the three Roadster configurations. The base Performance car relies on a fan and ground sealing system for grip, and the aero settings on screen match the active wings and suction setup covered in our look at how the Roadster generates downforce.
The Roadster layout is a departure from the rest of Tesla’s lineup. Instead of a map centered screen, the Roadster puts the car itself at the center of the home page, and Tesla’s Roadster page lists two smaller forward displays alongside the main touchscreen. Tesla has not said whether any of the Track Mode telemetry will make its way to the Model 3 Performance or other vehicles.
The interface could still change before deliveries. Elon Musk said at the event that Roadster production will begin in 2028, and Tesla says the flagship Rocket version is not approved for public road use. Reservations are open with a $50,000 payment, while Thrust is listed as a limited release and Rocket is invite only.
Those who want to see the car in person will get their first chance this weekend. The Roadster goes on display in the lobby of the Petersen Automotive Museum in Los Angeles from October 24 to 27, according to Sawyer Merritt, the first time the public will be able to view it up close.
Elon Musk
Tesla reveals Optimus Academy, where robots teach themselves
Tesla has begun building production quality Optimus robots in Fremont and revealed its training plan.
Tesla has started building Optimus on the high volume line it set up inside its Fremont factory, and the company says the robots coming off it are the first that meet the bar for a real product. “The bots coming off this line are the first production-quality bots that we have manufactured,” Tesla wrote in its third quarter shareholder letter, adding that it has “proven that the current manufacturing process for Optimus is suitable for a commercial product.”
The line sits in space that built the Model S and Model X until this spring. Tesla cleared the old vehicle line in 46 days, as Teslarati reported in July, to make room for robot production sized for one million units a year. On Wednesday’s earnings call, Elon Musk said most of the equipment for that capacity is already in Fremont, with output set to climb toward roughly 20,000 robots a week as the line ramps.
Musk described the ramp as a classic S curve. “The growth of Optimus is an S curve, but the initial curve is a shallow slope,” he said. The team is now refining the robot’s AI, electromechanical design, reliability and service life, and Musk expects that work to be finished by the end of next year, when Tesla plans to start delivering Optimus to outside companies for dangerous, repetitive and around the clock jobs.
The most interesting part of the call was how Tesla plans to teach the robots. Its cars send real driving data back to the AI team from millions of vehicles, but Optimus has no fleet like that yet. “A big difference with Optimus versus the cars is we don’t have this vast fleet of cars from which we can gather training data,” Musk said. Tesla’s answer is an Optimus Academy, where 10,000 to 20,000 robots will practice a wide range of tasks and feed what they learn into the next version of the model. Every unit off the Fremont line becomes a source of that training data.
Smarter hardware is on the way too. Tesla plans to put its AI5 chip into Optimus next year, and Musk said a new Optimus video should arrive within one or two months showing the robot completing tasks driven by AI rather than preprogrammed motions. He took aim at rival humanoid demos that only run scripted routines, saying those would not hold up in the real world.
The supply chain is lining up behind the program. In September, Tesla certified Tuopu, Joyson and Sanhua as mass production partners for Optimus components. A far larger Optimus factory is also rising at Giga Texas, where drone footage from Joe Tegtmeyer showed the steel frame nearing completion, and Musk has pegged that plant’s long term target at 10 million robots a year.
Tesla executives also said Optimus production costs are trending toward the expected manufacturing cost of Cybercab, a sign the robot is being engineered for volume from the start. The hands remain the toughest piece of the design, a point Musk also made at the X Takeover event earlier this month, as Teslarati covered at the time, and that is where much of the current engineering effort is focused.
Elon Musk
The Starship moon landing number NASA and Elon Musk can’t agree on
Musk disputes NASA estimate of 22 Starship launches for Moon landing, predicting 6 to 8.
Elon Musk is disputing a new NASA safety panel estimate of how many Starship launches it will take to put astronauts on the Moon, saying the real number will be less than half the panel’s figure.
On Thursday, NASA’s Aerospace Safety Advisory Panel held its quarterly public meeting. Panel member Charlie Precourt, a former NASA astronaut, flagged the fueling process for SpaceX’s lunar lander as a major risk for Artemis IV, the mission planned to land a crew on the Moon in 2028. “We need to keep our eyes on numerous required fuelings for the lander,” Precourt said, according to Ars Technica. “I think the last estimate is around 22 flights.”
Ars Technica’s Eric Berger posted the comment on X, and Musk replied. “That’s way too high,” Musk wrote. “Actual number will be more like 6 to 8.”
The disagreement comes down to a basic problem with sending a ship as large as Starship to the Moon. Starship burns nearly all of its propellant just reaching Earth orbit, so it cannot continue on to the Moon without stopping for a refill. SpaceX’s answer is a gas station in space. First, a Starship that works as a storage tank, called a depot, is launched into orbit. Then a series of tanker Starships launch one at a time, dock with the depot and pump their leftover propellant into it. Once the depot is full, the lunar lander version of Starship launches, docks, fills up and heads for the Moon.
Every tanker trip is its own full rocket launch, which is why the count matters. More launches mean more time, more cost and more chances for something to go wrong before astronauts ever leave Earth. Berger estimated that even if SpaceX reaches twice weekly Starship launches by the end of 2027, filling a depot at the panel’s number would still take roughly three months.
How many tankers are needed depends mostly on how much propellant each one can carry to orbit and how much is lost along the way. Starship’s fuel and oxygen are stored at extremely cold temperatures, and some of it slowly boils off while waiting in orbit. More is lost in each transfer. NASA appears to be working from what Starship can lift today, while Musk’s range assumes a more capable rocket.
Musk has pushed back on higher counts before. In 2021, after a government document suggested 16 launches, he called that “extremely unlikely” and said eight tankers would be the most required.
Much of the answer depends on hardware SpaceX has not finished flying. As Teslarati noted earlier this year, the company plans to carry out the refueling process with its upgraded V3 Starship, and Precourt described Artemis IV as carrying “a large number of firsts.” He also praised NASA Administrator Jared Isaacman’s team for working to clear obstacles for both SpaceX and Blue Origin, whose Blue Moon lander does not rely on orbital refueling for its first mission.