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SpaceX tests Falcon 9 Block 5’s landing leg retraction and preps for first reuse

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In the two months since SpaceX first debuted its Falcon 9 Block 5 rocket upgrade with a successful May 2018 launch and landing, the company has forged ahead with final Block 4 or older launch and two additional launches and recoveries of brand new Block 5 boosters, growing the fleet of flight-proven and thus flight-worthy rocket boosters to three.

Given the dramatic changes implemented in Block 5 and the pathfinder nature of these new boosters, SpaceX has spent much of the following time conducting tests and extensive analyses to verify new designs and new technology, ranging from teardowns to tests of specific components like landing legs on a recently-recovered East Coast booster.

Most prominently on that to-do list was a deep-dive teardown of inaugural Block 5 booster B1046, which was apparently completed within the last week or so – as evidenced by the sooty booster’s appearance at SpaceX’s Cape Canaveral Launch Complex 40 (LC-40) around July 24th. The purpose of that teardown was to give most of Falcon 9’s many thousands of individual and critical components a thorough examination, particularly those parts most impacted and worn by launch, reentry, and landing. That most likely includes B1046’s black octaweb and interstage thermal protection, its nine upgraded Merlin 1D engines, the “dance floor” heatshield at the rocket’s base, and landing legs, among myriad other smaller aspects.

More recently (July 27 and 28), SpaceX technicians attempted and completed the first retraction of a Block 5 booster landing leg (B1047 in Port Canaveral, Florida), compared with the current practice of removing both the landing legs and booms before rotating the recovered rocket horizontal and transporting it to a nearby refurbishment facility. Briefly discussed by CEO Elon Musk, Block 5 includes a number of landing leg optimizations, intended to improve robustness, increase reliability, and significantly ease reuse.

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“So essentially deploying the landing gear and stowing the landing gear is now a very easy thing to do [on Block 5 boosters], whereas previously it required several hours to re-stow the landing gear. Which can now be done with an actuator, pretty easily.”

SpaceX’s Falcon 9 Block 5 landing leg retraction mechanism, debuted for the first time on the East Coast, July 26-28. (Reese Wilson)

Given the fact that it took a full day to prepare for the retraction of the first leg and that the task appears to be accomplished with a fairly complex and manual lifting mechanism requiring several workers to function, it’s possible that the retraction and leg hardware described by Musk is still undergoing some form of testing or production optimization before being added to flight hardware. Nevertheless, photographer and journalist Ken Kremer observed the retraction sequence from start to finish (movement-wise) and pegged it at around 40 minutes total to go from fully deployed to fully stowed.

In all fairness, truly rapid and near-automatic leg retraction would only be of value to SpaceX once the company needs to refly Falcon 9 with less than a week or two between launches, at which point spending a day or two carefully removing or stowing landing legs outweighs the cost of adding highly specific hardware useless during flight (and thus stealing mass that could otherwise be fuel for a gentler booster recovery or a higher payload orbit).

Keeping as much of that leg retraction hardware on the ground as possible thus makes a lot of sense in today’s launch industry, where SpaceX simply has no material need for near-automatic, internally-actuated leg retraction on Falcon 9 (only necessary for extremely rapid turnaround). Still, if the company hopes to achieve Musk’s 24-hour booster turnaround challenge by the end of 2019, SpaceX technicians and engineers will need to have a solution in place to retract Falcon 9’s landing legs as quickly as practically possible – every minute will count for such a rapid reuse.

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For prompt updates, on-the-ground perspectives, and unique glimpses of SpaceX’s rocket recovery fleet (including fairing catcher Mr Steven) check out our brand new LaunchPad and LandingZone newsletters!

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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Tesla Cybertruck slapped with world’s least intimidating ticket, and it’s pure cringe

One cannot help but cringe and feel second-hand embarrassment at the idea of a person just driving around with a stack of these babies.

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Credit: Ryan Torres/X

A Cybertruck parked at Stanford Shopping Center in California was recently hit with what might be the most try-hard piece of paper ever slipped under a wiper blade: a “fake citation” accusing the driver of supporting a “fascist car.” 

The note, shared on X by Tesla staff program manager Ryan Torres, quickly made the rounds on X, where it quickly gained attention as an example of how not to protest.

The world’s least intimidating ticket

According to the citation, the supposed “violation” was “driving a fascist car.” The remedial action? Take the bus, call an Uber, or ride a bike. The note also dubbed Elon Musk a “chainsaw-wielding Nazi billionaire.” Now, protests against Tesla and Elon Musk have become commonplace this year, but one cannot help but cringe and feel second-hand embarrassment at the idea of a person just driving around with a stack of fake anti-Tesla/Musk citations.

Torres pointed out the irony himself in his post on X. Tesla currently employs over 140,000 Americans, and SpaceX has put the U.S. firmly back at the top of space technology. As Torres put it, maybe the person behind the world’s least intimidating ticket should “read a book on innovation before vandalizing” other people’s property.

Peak performative clownery

Not to mention that the fake ticket’s logic collapses under its own weight. EVs like the Cybertruck are literally designed to reduce emissions, not “destroy the economy.” If anything, Tesla has bolstered the United States’ economy by fueling jobs in engineering, manufacturing, and clean energy. It’s not the first time a Tesla has been the target of vandalism or politically charged notes, but this one stands out for sheer cringe value. 

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Torres summed it up neatly: “Peak clownery.” On that point, at least, the citation earns full marks. In a way, though, perhaps cringe fake tickets are not as bad as the literal firebombs that were being thrown at Tesla stores and cars earlier this year because some critics were gleefully misinformed about Elon Musk.

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Why a Tesla Model Y led to a teen’s failed driving exam in Ontario

The issue was due to the driver using the Model Y’s regenerative braking system.

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A North Bay, Ontario man has raised concerns after his teenage daughter failed her G driver’s license road test while driving his Tesla Model Y. The issue, the Tesla owner noted, was due to his daughter using the Model Y’s regenerative braking system to bring the car to a stop.

Regenerative braking bias

Eric Simard, the Tesla owner, told CBC News that his daughter borrowed his car for her driving test. Because of this, she was not fully familiar with how to disable the Model Y’s regenerative braking system. Unfortunately, the examiner did not allow his daughter to call him for help in turning off the feature.

Simard noted that his daughter ultimately failed her driving test because she never used the car’s physical brake pedal. In his daughter’s road test results from Drive Test Ontario, the examiner marked a box stating that the Model Y was “out of order. 

“I find it pretty frustrating because even though it’s regenerative braking and you’re not using the brake pedal, you’re clearly the one that is in full control of making the vehicle come to a stop or to slow down,” Simard stated, adding that his daughter was also penalized for the Model Y’s feature that alerts drivers when a traffic light turns green. 

Discussions on driver-assist technologies

In a comment, Julia Caslin, a spokesperson for Ontario’s Ministry of Transportation, stated that the province’s graduated licensing system “requires drivers to always demonstrate safe vehicle operation and full control, regardless of the vehicle’s features.” 

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“Applicants are expected to understand how their vehicle’s system — including lane centring, regenerative braking, adaptive cruise control and automated parking — may affect handling and performance during a road test,” Caslin stated. 

Driving instructors also expressed differing views about Simard’s experience. Saad Tariq of Greater Sudbury Driving School said he advises students against relying on driver-assist features because sensors can fail.

Meanwhile, Amanda Lacroix of Northern Lights Driving School suggested road tests should adapt to the technologies drivers use daily, while still requiring mastery of basic skills like mirror checks and manual braking.

“If the world’s going to change and we’re all going to have assisted driving, then we should be learning how to do it properly,” Lacroix said.

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Tesla says it is working on rides for the handicapped and disabled with Robotaxi

Tesla CEO Elon Musk confirmed that this was a focus by responding, “Absolutely,” to the embedded post on X above. Tesla said it is developing its own “wheelchair-accessible vehicle,” also known as a WAV. 

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Credit: Teslarati

Tesla says on its Robotaxi app that it is working on enabling “accessibility rides” that would give the handicapped and disabled the ability to hail a Robotaxi to get to an appointment.

While Robotaxi will obviously revolutionize the way we travel for our work commutes, daily activities, and other things, but there is true potential to enable serious change for those who cannot drive.

Autonomous transportation would make life easier for those who are unable to obtain a driver’s license. Of course, with today’s ride-sharing platforms, things are much easier than they once were.

However, rides from Uber and Lyft, while plentiful, always have an opportunity to be unavailable in some regions, especially rural ones, due to a lack of drivers.

Robotaxi aims to solve this problem through autonomous transportation, a technology that Tesla has been developing for years.

However, new language in the Robotaxi app shows that Tesla is working on a solution for people who need rides for medical reasons, and it uses a picture of the Robovan to hammer this point home:

Tesla CEO Elon Musk confirmed that this was a focus by responding, “Absolutely,” to the embedded post on X above. Tesla said it is developing its own “wheelchair-accessible vehicle,” also known as a WAV.

This is likely the Robovan, which was unveiled on October 10 at the Robotaxi event last year:

Tesla unveils the Robovan at ‘We, Robot’ event

It is pretty interesting to see two Musk ventures working on solutions for those who are physically impaired or have other disabilities. With Tesla, Robotaxi will unlock immense potential for those who are unable to drive themselves, addressing a genuine need in today’s world.

Additionally, Neuralink is continuing its development of technology to fight against various physical and mental disabilities. A great question to ask is, “Which will be more beneficial for humans?”

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