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SpaceX’s first Starship flight (re)scheduled for next week

SpaceX's fifth full-scale Starship prototype could become the first to take flight just a few days from now. (NASASpaceflight - bocachicagal)

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SpaceX’s fifth full-scale Starship prototype could become the first to take flight just a week or so from now if a Raptor engine test goes as planned early next week.

Known as Starship serial number 5 (SN5), SpaceX teams are currently in the process of completing the installation of Raptor SN27 and preparing the massive steel rocket for its first cryogenic wet dress rehearsal and static fire tests. Delayed from July 8th and 10th, Starship SN5’s first Raptor static fire is now scheduled no earlier than ~10 am CDT (~15:00 UTC) on Monday, July 13th.

If things go well during those nominally back-to-back tests, public road closure filings show that SpaceX wanted to attempt the first full-scale Starship hop just three days later, although the recent two-day delay adds a bit of uncertainty.

SpaceX’s fifth full-scale Starship prototype could become the first to take flight just a few days from now. (NASASpaceflight – bocachicagal)

The odds are good that one or both of those test periods will slip or change in the next few days and, in fact, Starship SN5’s static fire test period was delayed two days while this article was in work. SpaceX could run into road bumps that prevent the July 10th 13th wet dress rehearsal (WDR) from smoothly transitioning into a Raptor static fire attempt and any number of additional delays could beset the actual flight test throughout the flow. Along the same lines as Starhopper, currently the only vehicle to have flown under the power of a Raptor engine, Starship’s flight computer could abort the launch at almost any point prior to liftoff, up to and including Raptor ignition.

Like Falcon 9 and Falcon Heavy, Starship (and Starhopper) will ingest and interpret hundreds or thousands of channels of telemetry to determine the health of its engines for a second or two after ignition while thrust is ramping. If the Raptor or Merlin engine(s) look healthy, the rocket commands hold-down clamp release and lifts off (or, in the case of Starhopper, uses its own immense weight to prevent liftoff until Raptor is throttled up).

A Raptor engine is static fired in McGregor, Texas. (SpaceX)

Thanks to an upgraded launch mount, SpaceX’s full-scale Starship prototypes have access to built-in hold-down clamps, enabling operations that are at least a bit more similar to those used for Falcon 9 and Heavy launches. Starship’s six hold-down clamps are affixed to the same structure that the ship’s six landing legs are installed on.

Starship’s unique landing legs are pictured here on SN3 in March 2020. (NASASpaceflight – bocachicagal)

Perhaps the single biggest point of uncertainty with Starship’s first full-scale test flight is its somewhat mysterious landing legs – almost entirely different from Falcon 9’s well-proven four-leg design. The stubby Starship legs stow inside the ship’s engine section, swinging down and out (and potentially telescoping, albeit much less than Falcon 9) come touchdown. Based on photos of the legs, they may also feature rudimentary shock absorption mechanisms, meaning that Starship should be able to tolerate slightly rougher landings. SpaceX has likely tested Starship leg deployment extensively on the ground but beyond that assumption, they remain an unproven mystery.

Regardless, SpaceX is going to be extremely busy over the next 7-10 days with Starlink-9 scheduled to launch NET July 11th, Starship SN5’s static fire NET July 13th, Falcon 9’s ANASIS II launch scheduled NET July 14th, and a potential SN5 hop test attempt as early as July 16th (speculation).

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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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Tesla teases new market entrance with confusing and cryptic message

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(Credit: Tesla)

Tesla teased its entrance into a new market with a confusing and what appeared to be cryptic message on the social media platform X.

The company has been teasing its entrance into several markets, including Africa, which would be a first, and South America, where it only operates in Chile.

In September, Tesla started creating active job postings for the Colombian market, hinting it would expand its presence in South America and launch in a new country for the first time in two years.

Tesla job postings seem to show next surprise market entry

The jobs were related to various roles, including Associate Sales Manager, Advisors in Sales and Delivery, and Service Technicians. These are all roles that would indicate Tesla is planning to launch a wide-scale effort to sell, manage, and repair vehicles in the market.

Last night, Tesla posted its latest hint, a cryptic video that seems to show the outline of Colombia, teasing its closer than ever to market entry:

This would be the next expansion into a continent where it does not have much of a presence for Tesla. Currently, there are only two Supercharger locations on the entire continent, and they’re both in Chile.

Tesla will obviously need to expand upon this crucial part of the ownership experience to enable a more confident consumer base in South America as a whole. However, it is not impossible, as many other EV charging infrastructures are available, and home charging is always a suitable option for those who have access to it.

Surprisingly, Tesla seems to be more concerned about these middle-market countries as opposed to the larger markets in South America, but that could be by design.

If Tesla were to launch in Brazil initially, it may not be able to handle the uptick in demand, and infrastructure expansion could be more difficult. Brazil may be on its list in the upcoming years, but not as of right now.

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Tesla expands crucial Supercharging feature for easier access

It is a useful tool, especially during hours of congestion. However, it has not been super effective for those who drive non-Tesla EVs, as other OEMs use UI platforms like Google’s Android Auto or Apple’s iOS.

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tesla supercharger
Credit: Tesla

Tesla has expanded a crucial Supercharging feature that helps owners identify stall availability at nearby locations.

Tesla said on Tuesday night that its “Live Availability” feature, which shows EV owners how many stalls are available at a Supercharger station, to Google Maps, a third-party app:

Already offering it in its own vehicles, the Live Availability feature that Teslas have is a helpful feature that helps you choose an appropriate station with plugs that are immediately available.

A number on an icon where the Supercharger is located lets EV drivers know how many stalls are available.

It is a useful tool, especially during hours of congestion. However, it has not been super effective for those who drive non-Tesla EVs, as other OEMs use UI platforms like Google’s Android Auto or Apple’s iOS.

Essentially, when those drivers needed to charge at a Supercharger that enables non-Tesla EVs to plug in, there was a bit more of a gamble. There was no guarantee that a plug would be available, and with no way to see how many are open, it was a risk.

Tesla adding this feature allows people to have a more convenient and easier-to-use experience if they are in a non-Tesla EV. With the already expansive Supercharger Network being available to so many EV owners, there is more congestion than ever.

This new feature makes the entire experience better for all owners, especially as there is more transparency regarding the availability of plugs at Supercharger stalls.

It will be interesting to see if Tesla is able to expand on this new move, as Apple Maps compatibility is an obvious goal of the company’s in the future, we could imagine. In fact, this is one of the first times an Android Auto feature is available to those owners before it became an option for iOS users.

Apple owners tend to get priority with new features within the Tesla App itself.

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Elon Musk’s Boring Co goes extra hard in Nashville with first rock-crushing TBM

The Boring Company’s machine for the project is now in final testing.

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Credit: The Boring Company/X

The Boring Company is gearing up to tackle one of its toughest projects yet, a new tunnel system beneath Nashville’s notoriously tough limestone terrain. Unlike the soft-soil conditions of Las Vegas and Austin, the Music City Loop will require a “hard-rock” boring machine capable of drilling through dense, erosion-resistant bedrock. 

The Boring Company’s machine for the project is now in final testing.

A boring hard-rock tunneling machine

The Boring Company revealed on X that its new hard-rock TBM can generate up to 4 million pounds of grip force and 1.5 million pounds of maximum thrust load. It also features a 15-filter dust removal system designed to keep operations clean and efficient during excavation even in places where hard rock is present.

Previous Boring Co. projects, including its Loop tunnels in Las Vegas, Austin, and Bastrop, were dug primarily through soft soils. Nashville’s geology, however, poses a different challenge. Boring Company CEO and President Steve Davis mentioned this challenge during the project’s announcement in late July.

“It’s a tough place to tunnel, Nashville. If we were optimizing for the easiest places to tunnel, it would not be here. You have extremely hard rock, like way harder than it should be. It’s an engineering problem that’s fairly easy and straightforward to solve,” Davis said.

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Nashville’s limestone terrain

Experts have stated that the city’s subsurface conditions make it one of the more complex tunneling environments in the U.S. The Outer Nashville Basin is composed of cherty Mississippian-age limestone, a strong yet soluble rock that can dissolve over time, creating underground voids and caves, as noted in a report from The Tennessean.

Jakob Walter, the founder and principal engineer of Haushepherd, shared his thoughts on these challenges. “Limestone is generally a stable sedimentary bedrock material with strength parameters that are favorable for tunneling. Limestone is however fairly soluble when compared to other rack materials, and can dissolve over long periods of time when exposed to water. 

“Unexpected encounters with these features while tunneling can result in significant construction delays and potential instability of the excavation. In urban locations, structures at the ground surface should also be constantly monitored with robotic total stations or similar surveying equipment to identify any early signs of movement or distress,” he said.

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