Connect with us

News

SpaceX Texas test HQ fires up a dozen Falcon, Starship rocket engines in six hours

On March 19th, SpaceX's McGregor development team fired up at least 11 Falcon engines and 2 Starship engines in a six-hour period. (SpaceX)

Published

4 years ago

on

Though it often falls under the radar relative to SpaceX’s high-profile Boca Chica Starship hub, another even more important Texas outpost appears to be busier than ever testing the rocket engines and boosters instrumental to all SpaceX operations.

Famous for occasionally supporting half a dozen or more rocket tests on busy days, SpaceX’s McGregor, Texas facilities showed off exactly that kind of rapid-fire activity on Friday, March 19th, flexing the sheer variety and volume of rocket hardware liable to pass through its gates.

A 2017 overview provides the best recent view behind the scenes of SpaceX’s McGregor, TX rocket development and testing facilities.

Located on the grounds of a former US military explosives factory, SpaceX’s McGregor, Texas rocket development and test facilities have been testing Falcon, Dragon, and Starship parts and supporting each program’s development for a decade and a half. After being fabricated and assembled in Hawthorne, California, virtually every single active propulsive component SpaceX has ever flown has spent some amount of time in McGregor.

For boosters, every cold gas maneuvering thruster is qualified in Texas before being sent back to Hawthorne for final installation. Each stage’s nine Merlin 1D engines are individually tested in McGregor, shipped back to Hawthorne, installed on a booster, shipped back to McGregor, and static fired as an integrated first stage before SpaceX deems a Falcon 9 or Falcon Heavy core ready for flight. The exact same process (separate engines and thruster qualification followed by integrated vehicle testing) is performed with Falcon upper stages and their Merlin Vacuum engines, as well as all Dragon spacecraft and their Draco (and SuperDraco) thrusters. The same is true for the two Raptor engine variants and cold-gas thrusters that power Starship.

On March 19th, nearly all of those different engines and vehicles – and the separate stands used to test each of them – came together for an exceptionally busy day at McGregor. According to local resident Reagan (@bluemoondance74), who lives within earshot of SpaceX’s extraordinarily busy rocket testing HQ, at least five unique tests were performed in just six hours – all but one of which was squeezed into the last ~125 minutes.

Advertisement

Around 2:40 pm, an unknown test – possibly a Merlin Vacuum (MVac) or Merlin 1D (M1D) engine – kicked off the salvo. Four hours later, SpaceX completed arguably the most significant test of the day, firing up the first Falcon Heavy center core to head to McGregor in almost 24 months. Assuming that static fire was a success, the booster will be inspected, have its tanks cleaned, and be shipped to Florida to complete the first stage of SpaceX’s fourth Falcon Heavy rocket for a launch as early as July.

An hour and a half after the Falcon Heavy center core’s static fire, SpaceX fired up a Raptor engine (either a sea level or vacuum variant), followed by another likely M1D or MVac test just minutes later. Finally, at 8:52 pm, SpaceX ignited a second Raptor engine at an entirely separate vertical test stand (known as the tripod stand) recently modified to support testing Starship engines in a more flight-like configuration. Altogether, assuming no repeated tests, SpaceX effectively tested a booster and 13 (9+4) rocket engines in a little over six hours.

Both Merlin 1D test bays are usually occupied. (SpaceX)
Sans nozzle, a Merlin Vacuum engine is static fired on a stand adjacent to those M1D bays. (SpaceX)
A sea-level Raptor operates at one of McGregor’s two horizontal test bays. (SpaceX)
SpaceX tests Raptor Vacuum prototypes on the same horizontal bays. (SpaceX)
A vertical test stand also helps SpaceX test Raptors in more flight-like conditions.

More likely than not, one or both of those Raptors will soon find themselves on a Starship or Super Heavy prototype in Boca Chica. The M1D and/or MVac engines will assuredly find a place on a future Falcon booster or upper stage. The Falcon Heavy center core (B1065 or B1066) is scheduled to launch as early as July 2021 and will be the first of its kind to fly in an intentionally expendable configuration. Another Falcon Heavy center core – possibly B1067 – will likely also find itself in McGregor within the next few months for the rocket’s fifth launch, scheduled no earlier than (NET) October 2021.

All told, SpaceX’s McGregor rocket testing HQ is about as busy as – if not busier than – it’s ever been as the company works towards an unprecedentedly ambitious 48-launch 2021 manifest, builds and flies at least four Dragon spacecraft, and pursues an even more ambitious effort to begin orbital Starship launches this summer. Quieted away in rural Texas, McGregor may largely go unnoticed but its infrastructure remains as integral as ever for virtually every single SpaceX project – past, present, and future.

Related Topics:

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.

Advertisement
Comments

News

Tesla plans to use Unreal Engine for driver visualization with crazy upgrade

This could change the way Driver Visualization looks for Tesla owners.

Published

58 seconds ago

on

August 13, 2025

By

Credit: Tesla Newswire | X

Tesla looks to be planning a major upgrade to its driver visualization for Autopilot with a crazy upgrade from its current version.

Tesla’s driver visualization appears on the center screen and shows the vehicle, its surroundings, and, when it is operating on Autopilot or Full Self-Driving, shows the route of travel.

It has improved over the years, and even includes things like pedestrians, pets, and the shapes of other vehicles. It also helps with manual driving because it can be a good representation of your surroundings when trying to change lanes or merge in traffic.

However, it appears Tesla is planning a pretty substantial upgrade with the

Coding found in the 2025.20 firmware by Tesla hacker greentheonly showed the company is planning to utilize Unreal Engine for Autopilot visualization. He said the one Tesla currently uses is “godot-based.”

Unreal Engine is a 3D computer graphics game engine that was developed by Epic Games, the developer of the popular third-party shooter game Fortnite. It was first released back in 1998, and the most recent version is Unreal Engine 5. The sixth version is in development, and it could be out in 2027 or 2028.

However, Tesla could use it for a more realistic representation of vehicle surroundings. It would undoubtedly improve driver visualization, creating a smoother and freer-flowing depiction of what is outside of the car.

Continue Reading

News

SpaceX is rolling out a new feature to Starlink that could be a lifesaver

Starlink now has a new Standby Mode that will enable low-speed internet access in the event of an outage.

Published

2 hours ago

on

August 13, 2025

By

(Credit: Starlink | X)

SpaceX is rolling out a new feature to Starlink that could be a lifesaver in some instances, but more of a luxury for others.

Starlink is the satellite internet service that Elon Musk’s company SpaceX launched several years ago. It has been adopted by many people at their homes, many airlines on their planes, and many maritime companies on their ships.

SpaceX produces its 10 millionth Starlink kit

It has been a great way for customers to relieve themselves of the contracts and hidden fees of traditional internet service providers.

Now, Starlink is rolling out a new service feature on its units called “Standby Mode,” which is part of Pause Mode. The company notified customers of the change in an email:

“We’re reaching out to you to let you know the Pause feature on your plan has been updated. Pause now includes Standby Mode, which comes with unlimited low-speed data for $5.00 per month, perfect for backup connectivity and emergency use. These updates will take effect in 30 days. All of your other plan features remain the same. You are able to cancel your service at any time for no charge.”

SpaceX did not define how fast these “low speeds” will be. However, there are people who have tested the Standby Mode, and they reported speeds of about 500 kilobytes per second.

The mode is ideal for people who might deal with internet or power outages, but still need to have some sort of internet access.

It could also be used as a backup for people who want to stay with their ISP, but would like to have some sort of alternative in case of an outage for any reason.

Continue Reading

Elon Musk

Elon Musk says this essential Tesla Robotaxi feature will be here soon

Tesla will work to solve automatic parking at available Supercharger stalls with future updates.

Published

2 hours ago

on

August 13, 2025

By

Credit: Tesla

Elon Musk reiterated that one feature, which is ultimately an essential part of the operation of the Tesla Robotaxi platform, will be here soon.

Tesla released a new video of its longest Full Self-Driving demo yesterday, showing off a zero-intervention drive from San Francisco to Los Angeles. The drive is roughly seven hours and 360 miles long, and not a single need for the driver to touch the wheel was recorded.

Tesla flexes its most impressive and longest Full Self-Driving demo yet

There was one question that was brought up by an owner that brings up an interesting point. Tesla still needs to solve the vehicle’s ability to pull into Superchargers automatically, something that does not currently have a high success rate, at least for the owner who got a response from CEO Elon Musk.

Musk assured him that a Tesla’s ability to pull into open parking spaces at Superchargers would be more reliable with future software updates. Owners can see how many and which exact stalls are available before traveling to a Supercharger, so Teslas should be able to identify these stalls and pull in automatically:

This is a small part of what will be imperative for the charging experience when Robotaxi launches in the coming years. Tesla plans to enable customer-owned cars to potentially enter the Robotaxi fleet and become an autonomous ride-sharing vehicle by next year.

However, it still needs to figure out autonomous charging. There are two parts to that process: pulling into the spot and charging without human need to connect the Supercharger to the vehicle.

Tesla used to consider a robotic snake-arm charger for this, but it has talked about induction charging more recently. Wireless charging seems to be the route that Tesla plans to go, but it might take some time to resolve the energy loss issue and make it an efficient charging method.

Tesla flexes Robotaxi wireless charging — autonomy from top to bottom

Tesla has said its wireless charging efficiency is “well above 90 percent.”

Nevertheless, Tesla is still working toward figuring out all of the edge cases of Robotaxi operation. Figuring out charging without the need of a human is just one part of the puzzle it still has yet to solve, but with its improvements over the past few years, there’s no doubt Tesla will find the missing piece.

Continue Reading

Trending