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SpaceX Falcon Heavy spied on the move ahead of test fire

Falcon Heavy seen rolling out to Pad 39A aboard its Transporter/Erector/Launcher (TEL) on the morning of Jan. 8. (Twitter skeerracing)

Published

8 years ago

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While touring Florida’s Kennedy Space Center by bus earlier this morning (January 8), several spaceflight fans captured SpaceX’s Falcon Heavy rolling out to Pad 39A for the second time ever. Following a basic fit check and photo opportunity at the launch pad in the last week of 2017, the launch vehicle now appears to be prepped and ready for its first wet dress rehearsal (WDR) and static fire test.

If all goes well during the wet dress rehearsal’s propellant loading tests, an admittedly less than guaranteed outcome, then the WDR will likely translate into a momentous occasion for the massive rocket: the first-ever simultaneous ignition of all three of its integrated first stages and their 27 Merlin 1D engines. While relatively unique to SpaceX, the company has made a habit of testing each and every new Falcon 9 first stage with two full-up static fire ignitions, one at McGregor, Texas and the other at the vehicle’s given launch pad. Following the destructive failure of Falcon 9 during a September 2016 static fire test, SpaceX further upped their cautious procedures by removing the payload for all future static fires, lest the customer request that it remain integrated for the sake of time savings.

Unsurprisingly, no customers have since chosen to bypass SpaceX’s new risk-reducing procedures. Falcon Heavy will clearly be a return to older methods, delineated by the clear presence of the second stage and Tesla Roadster payload at its top, although this decision was almost undoubtedly driven by the fact that the payload is in no real way valuable or even important for the “customer,” SpaceX itself. The Tesla Roadster is more or less a stand-in for the traditional boilerplate satellite (read: hunk of dead metal) often launched during the inaugural flights of new rockets. The best recent example is the 2004 inaugural launch of Boeing’s Delta IV Heavy rocket, similar to Falcon Heavy in the sense that it also features a triple-core first stage. Its first launch carried a payload that was quite literally a 6000 kg (13500 lb) piece of metal paired with a number of sensors used to gather vibrational data.

Somewhat fittingly, Delta IV Heavy is aiming to conduct its own launch within the next week or so, providing the East Coast with back to back launches of the world’s two largest operational rockets. Still, as SpaceX and Elon Musk have repeatedly mentioned, Falcon Heavy is far more capable than even Delta IV Heavy: while Falcon Heavy is noticeably shorter, narrower, and thinner than Delta, it weighs almost twice as much and will sport nearly 2.5 times the thrust at liftoff.

Delta IV Heavy’s launches are undoubtedly spectacles to behold, particularly given explosive launch procedures, but the vehicle is entirely expendable, whereas Falcon Heavy will attempt recovery of all three of its first stages, and may eventually allow SpaceX to test technology that will enable second stage recovery, as well.

Falcon Heavy will launch a somewhat livelier version of Delta IV Heavy’s boilerplate mass-simulator with the Tesla Roadster, and the main goal is quite clearly to test the vehicle’s ability to send a payload into a trans-Martian injection (TMI) orbit, albeit likely without an actual injection into orbit around Mars at the other end. Even if the payload is somewhat silly, a successful launch to TMI would be the most literal step yet made by the commercial space company along its path to Mars. If this week’s propellant loading and static fire go as planned, launch will likely follow within a week or so – maybe two weeks given the new and unpredictable nature of testing what is more or less a prototype rocket.

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Falcon Heavy can be expected to go vertical at the pad within the next 12-24 hours at most, and static fire will follow soon after. After a highly successful evening photographing the January 7 launch of Falcon 9 with Zuma, Teslarati’s launch photographer Tom Cross will be attempting to photograph the momentous test fire as it happens, and you can follow along live on Teslarati’s Instagram.

 

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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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Investor's Corner

Tesla analyst realizes one big thing about the stock: deliveries are losing importance

Published

3 hours ago

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December 15, 2025

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Credit: Joe Tegtmeyer | YouTube

Tesla analyst Dan Levy of Barclays realized one big thing about the stock moving into 2026: vehicle deliveries are losing importance.

As a new era of Tesla seems to be on the horizon, the concern about vehicle deliveries and annual growth seems to be fading, at least according to many investors.

Even CEO Elon Musk has implied at times that the automotive side, as a whole, will only make up a small percentage of Tesla’s total valuation, as Optimus and AI begin to shine with importance.

He said in April:

“The future of the company is fundamentally based on large-scale autonomous cars and large-scale and large volume, vast numbers of autonomous humanoid robots.”

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Levy wrote in a note to investors that Tesla’s Q4 delivery figures “likely won’t matter for the stock.” Barclays said in the note that it expects deliveries to be “soft” for the quarter.

In years past, Tesla analysts, investors, and fans were focused on automotive growth.

Cars were truly the biggest thing the stock had to offer: Tesla was a growing automotive company with a lot of prowess in AI and software, but deliveries held the most impact, along with vehicle pricing. These types of things had huge impacts on the stock years ago.

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In fact, several large swings occurred because of Tesla either beating or missing delivery estimates:

  • January 3, 2022: +13.53%, record deliveries at the time
  • January 3, 2023: -12.24%, missed deliveries
  • July 2, 2024: +10.20%, beat delivery expectations
  • October 3, 2022: -8.61%, sharp miss due to Shanghai factory shutdown
  • July 2, 2020: +7.95%, topped low COVID-era expectations with sizeable beat on deliveries

It has become more apparent over the past few quarters that delivery estimates have significantly less focus from investors, who are instead looking for progress in AI, Optimus, Cybercab, and other projects.

These things are the future of the company, and although Tesla will always sell cars, the stock is more impacted by the software the vehicle is running, and not necessarily the vehicle itself.

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Tesla removes Safety Monitors, begins fully autonomous Robotaxi testing

This development, in terms of the Robotaxi program, is massive. Tesla has been working incredibly hard to expand its fleet of Robotaxi vehicles to accommodate the considerable demand it has experienced for the platform.

Published

15 hours ago

on

December 14, 2025

By

Credit: @Mandablorian | X

Tesla has started Robotaxi testing in Austin, Texas, without any vehicle occupants, the company’s CEO Elon Musk confirmed on Sunday. Two Tesla Model Y Robotaxi units were spotted in Austin traveling on public roads with nobody in the car.

The testing phase begins just a week after Musk confirmed that Tesla would be removing Safety Monitors from its vehicles “within the next three weeks.” Tesla has been working to initiate driverless rides by the end of the year since the Robotaxi fleet was launched back in June.

Two units were spotted, with the first being seen from the side and clearly showing no human beings inside the cabin of the Model Y Robotaxi:

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Another unit, which is the same color but was confirmed as a different vehicle, was spotted just a few moments later:

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The two units are traveling in the general vicinity of the South Congress and Dawson neighborhoods of downtown Austin. These are located on the southside of the city.

This development, in terms of the Robotaxi program, is massive. Tesla has been working incredibly hard to expand its fleet of Robotaxi vehicles to accommodate the considerable demand it has experienced for the platform.

However, the main focus of the Robotaxi program since its launch in the Summer was to remove Safety Monitors and initiate completely driverless rides. This effort is close to becoming a reality, and the efforts of the company are coming to fruition.

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It is a drastic step in the company’s trek for self-driving technology, as it plans to expand it to passenger vehicles in the coming years. Tesla owners have plenty of experience with the Full Self-Driving suite, which is not fully autonomous, but is consistently ranked among the best-performing platforms in the world.

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Tesla refines Full Self-Driving, latest update impresses where it last came up short

We were able to go out and test it pretty extensively on Saturday, and the changes Tesla made from the previous version were incredibly impressive, especially considering it seemed to excel where it last came up short.

Published

1 day ago

on

December 14, 2025

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Credit: TESLARATI

Tesla released Full Self-Driving v14.2.1.25 on Friday night to Early Access Program (EAP) members. It came as a surprise, as it was paired with the release of the Holiday Update.

We were able to go out and test it pretty extensively on Saturday, and the changes Tesla made from the previous version were incredibly impressive, especially considering it seemed to excel where it last came up short.

Tesla supplements Holiday Update by sneaking in new Full Self-Driving version

With Tesla Full Self-Driving v14.2.1, there were some serious regressions. Speed Profiles were overtinkered with, causing some modes to behave in a strange manner. Hurry Mode was the most evident, as it refused to go more than 10 MPH over the speed limit on freeways.

It would routinely hold up traffic at this speed, and flipping it into Mad Max mode was sort of over the top. Hurry is what I use most frequently, and it had become somewhat unusable with v14.2.1.

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It seemed as if Speed Profiles should be more associated with both passing and lane-changing frequency. Capping speeds does not help as it can impede the flow of traffic. When FSD travels at the speed of other traffic, it is much more effective and less disruptive.

With v14.2.1.25, there were three noticeable changes that improved its performance significantly: Speed Profile refinements, lane change confidence, and Speed Limit recognition.

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Speed Profile Refinement

Speed Profiles have been significantly improved. Hurry Mode is no longer capped at 10 MPH over the speed limit and now travels with the flow of traffic. This is much more comfortable during highway operation, and I was not required to intervene at any point.

With v14.2.1, I was sometimes assisting it with lane changes, and felt it was in the wrong place at the wrong time more frequently than ever before.

However, this was one of the best-performing FSD versions in recent memory, and I really did not have any complaints on the highway. Speed, maneuvering, lane switching, routing, and aggressiveness were all perfect.

Lane Changes

v14.2.1 had a tendency to be a little more timid when changing lanes, which was sort of frustrating at times. When the car decides to change lanes and turn on its signal, it needs to pull the trigger and change lanes.

It also changed lanes at extremely unnecessary times, which was a real frustration.

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There were no issues today on v14.2.1.25; lane changes were super confident, executed at the correct time, and in the correct fashion. It made good decisions on when to get into the right lane when proceeding toward its exit.

It was one of the first times in a while that I did not feel as if I needed to nudge it to change lanes. I was very impressed.

Speed Limit Recognition

So, this is a complex issue. With v14.2.1, there were many times when it would see a Speed Limit sign that was not meant for the car (one catered for tractor trailers, for example) or even a route sign, and it would incorrectly adjust the speed. It did this on the highway several times, mistaking a Route 30 sign for a 30 MPH sign, then beginning to decelerate from 55 MPH to 30 MPH on the highway.

This required an intervention. I also had an issue leaving a drive-thru Christmas lights display, where the owners of the private property had a 15 MPH sign posted nearly every 200 yards for about a mile and a half.

The car identified it as a 55 MPH sign and sped up significantly. This caused an intervention, and I had to drive manually.

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It seems like FSD v14.2.1.25 is now less reliant on the signage (maybe because it was incorrectly labeling it) and more reliant on map data or the behavior of nearby traffic.

A good example was on the highway today: despite the car reading that Route 30 sign and the Speed Limit sign on the center screen reading 30 MPH, the car did not decelerate. It continued at the same speed, but I’m not sure if that’s because of traffic or map data:

A Lone Complaint

Tesla has said future updates will include parking improvements, and I’m really anxious for them, because parking is not great. I’ve had some real issues with it over the past couple of months.

Today was no different:

Full Self-Driving v14.2.1.25 is really a massive improvement over past versions, and it seems apparent that Tesla took its time with fixing the bugs, especially with highway operation on v14.2.1.

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