Connect with us

News

Renderings of SpaceX clawboat’s huge net upgrade is a taste of what’s to come

Published

on

After several close-but-no-cigar attempts at snatching a Falcon 9 payload fairing out of the air, SpaceX’s iconic recovery vessel Mr Steven is currently laid up at the company’s newly-acquired Berth 240 dock space, roughly a week into the process of upgrading his arms to support a much larger net. CEO Elon Musk recently hinted that the boat’s net would be expanded by a factor of four, but what would such a dramatic growth look like?

To give a better idea of what to expect from Mr Steven’s arm and net upgrades, Teslarati’s Reese Wilson modeled and rendered the fairing recovery vessel with one such interpretation. The dimensions and aspect ratios may not be a mirror-image of the real-world Mr Steven, but the visual effect of the net upgrade is still fundamentally the same.

Mr Steven is currently laid up at Berth 240 in a sadly armless state. (Pauline Acalin)

With respect to these renders, the actual net growth is somewhat less than the full fourfold area upgrade mentioned by Musk in early June – the concept art’s net is closer to 2.5 or 3 times larger than Mr Steven’s original net. This slight inaccuracy may actually be serendipitous, as a true 4X net could be downright unwieldy without the addition of some sort of complex retraction mechanism, versus the simple but functional (and infinitely reliable) implementation of fixed steel arms at the current net’s scale.

Dramatic modifications nevertheless are all but guaranteed, as Mr Steven appears to have had the entire arm apparatus – including the steel base attaching them to his cargo deck – completely removed and placed on the side of the dock, still less permanent than the apparent decision to plasma or torch cut each arm off of that base, one of which is visible dockside at Berth 240. It may be possible to re-weld those severed arms onto the base, but it’s arguably more likely that entirely new arms, an entirely new base, or both will be fabricated, and those larger arms will themselves require a much larger net.

Ultimately, the fairing recovery vessel has gotten as close as 50 meters to gently catching a parasailing rocket fairing minutes after launch, an extraordinarily tiny error compared to the broader scope of the task at hand. Upon separation from Falcon 9’s upper stage, each payload fairing half is routinely traveling at speeds of 1.5 to 2 kilometers per second and reach apogees anywhere from 100 to 130 kilometers, all while traveling the better part of a thousand miles (800 mi/1300 km for Iridium-6) to reach Mr Steven’s net. As such, “missing” by 50 meters is an extraordinary achievement.

A fairing floats gently into the welcoming embrace of Mr Steven’s upgrade net and arms. (Reese Wilson)

With the vessel’s current net roughly 30 meters or 100 feet square (Mr Steven is 60m/200ft bow to stern), give or take 25%, a full fourfold upgrade would double each dimension, which could singlehandedly cut the error margin required for fairing recovery (currently 50 meters) by more than 50% if it remains square. If SpaceX finds a way to functionally achieve something close to a fourfold increase in area with a more rectangular aspect ratio (assuming that the fairing’s present error is more a matter of glideslope inaccuracy than properly pointing the half at Mr Steven), a rectangular net with a width ~50% and length ~300% larger – say 40 meters by 80 meters –  would completely close the error gap between reliably missing and reliably catching Falcon fairings. To compare, a common football (soccer for our American readers) field is typically 70 meters by 100 meters.

Advertisement
-

Time will tell, and we’ll find out soon whether those arm and net upgrades can be available for SpaceX’s next California launch, currently scheduled on the morning of July 20th.

One half of SpaceX’s Iridium-6/GRACE-FO just moments before touchdown on the Pacific Ocean. (SpaceX)

Follow us for live updates, peeks behind the scenes, and photos from Teslarati’s East and West Coast photographers.

Teslarati   –   Instagram – Twitter

Tom Cross – Twitter

Pauline Acalin – Twitter

Eric Ralph – Twitter

Advertisement
-

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

Elon Musk

Tesla’s Roadster appearance at SpaceX has merger watchers talking

Tesla’s next generation Roadster was spotted at SpaceX’s Hawthorne headquarters, two weeks after its unveiling.

Published

on

By

The Roadster’s rear wing, one of the aerodynamic elements Tesla pairs with a fan-based downforce system. (Image: Tesla)

Tesla’s next generation Roadster turned up at SpaceX’s headquarters in Hawthorne, California on Wednesday, less than two weeks after the car flew off a ramp at its unveiling in Texas.

Photos shared on X by SpaceX Engineer (@DeannaRiceSPCX) show the new Roadster parked outdoors beside the famed Falcon 9 that stands outside company headquarters at the corner of Crenshaw Boulevard and Jack Northrop Avenue. Rocket B1019 was the first orbital-class booster ever to land after a launch on December 21, 2015 after it sent 11 Orbcomm satellites to orbit and then flew back to Landing Zone 1 at Cape Canaveral, which would be the first landing in what became SpaceX’s reusable rocket program. SpaceX chose not to fly it again. After a test fire in Florida, the booster was shipped to Hawthorne and raised upright as a permanent monument in August 2016, as Teslarati reported at the time. Putting the Roadster, which flies on SpaceX cold gas thrusters, next to the rocket that started SpaceX’s landings is symbolic in itself.

The Thrust and Rocket versions of the Roadster use cold gas thrusters fed by composite overwrapped pressure vessels, the same type of tank SpaceX flies on Falcon 9, and Elon Musk described the car as the work of Tesla and SpaceX engineers working together. Tesla lists 0 to 60 mph in under 0.9 seconds for Thrust and under 0.59 seconds for Rocket, while the base Performance model relies on a fan and ground sealing system for grip, as Teslarati detailed in its breakdown of the three Roadster configurations.

Tesla has kept the car in the spotlight since the October 15 event near Waco. Last week, the company posted a video of the Roadster’s fighter jet inspired cockpit, including a Track Mode screen with a “Thruster · 5,500 PSI” readout, which we covered in our look at the Roadster’s center display. Musk also said owners will be able to ask the car to perform the stunts autonomously, and promised a looping track at Tesla’s Texas headquarters.

Advertisement
-

The visit comes as special committees at Tesla and SpaceX weigh a possible merger, a step Musk confirmed on SpaceX’s third quarter earnings call. The Roadster, built on SpaceX hardware, has become one of the clearest examples of the two companies already building products together.

Musk said at the unveiling that Roadster production will begin in 2028. Reservations are open with a $50,000 payment, Thrust is listed as a limited release and Rocket is invite only. Tesla says the car is not approved for public road use.

Continue Reading

News

Verizon, AT&T and T-Mobile are trying to shut Starlink out before FCC vote

AT&T, Verizon and T-Mobile want 290 MHz cut from an FCC satellite plan before Thursday.

Published

on

By

Starlink D2D direct to device vs Verizon, AT&T (Concept render by Grok)

AT&T, Verizon and T-Mobile are asking the Federal Communications Commission to pull nearly 300 MHz of spectrum out of a proposal that would let satellite companies like SpaceX offer cell service directly to ordinary phones. The request lands one day before the agency votes on it.

The FCC will vote Thursday, October 29, on a notice of proposed rulemaking that would make an additional 482 MHz available for direct to device service, expanding the number of eligible bands from five to 13, according to the FCC fact sheet. It would also scrap the rule requiring a satellite operator to lease spectrum from carriers, replacing it with a certification that the operator has coexistence agreements in place or holds the terrestrial license itself.

That second path matters for SpaceX. As Teslarati reported earlier this month, SpaceX agreed to buy Grain Management’s nationwide 800 MHz portfolio to turn Starlink Mobile into a full US carrier, adding to the spectrum it already bought from EchoStar.

The carriers want two bands removed, 2.5 GHz and 3.45 GHz, which make up 290 MHz of the 482 MHz on the table. Through industry group CTIA, they argued that about 300 million users depend on those bands and that satellite operations in them are not technically feasible. T-Mobile, which calls 2.5 GHz the foundation of its Ultra Capacity 5G network, said in its own filing that satellite interference could wipe out up to 96% of a cell site’s uplink coverage area and cut uplink speeds by 88% to 99%.

Executives from all three carriers met with FCC staff on October 20, and T-Mobile CEO Srini Gopalan met separately with FCC Chairman Brendan Carr. T-Mobile’s role stands out because it is still SpaceX’s US launch partner for Starlink Mobile. The three carriers have also teamed up on their own satellite joint venture to pool spectrum, a move widely seen as a response to Starlink.

Advertisement
-

SpaceX is asking for the opposite. In an October 23 filing after meetings with FCC staff and commissioners’ offices, the company asked regulators to add the 902 to 928 MHz band to the proposal. “Doing so now saves time later,” SpaceX wrote. The company also asked the FCC to modernize interference rules and align satellite deployment requirements with those for terrestrial cell networks, saying the goal is to let satellite and ground networks work together so Americans stay connected wherever they are.

The carriers have not been shy about how they view SpaceX as a competitor. On Verizon’s third quarter earnings call Monday, its chief executive said Starlink Mobile “just can’t compete with a terrestrial network” and estimated SpaceX would need four to six years and $300 billion to $500 billion to build a full US carrier network.

Thursday’s vote will not settle which bands survive. Adopting the notice opens a public comment period, with final rules to come later in the proceeding. The FCC already considered and rejected 2.5 GHz for satellite coverage once, in 2024. SpaceX also is not the only satellite player watching: the FCC approved Amazon’s $11.6 billion acquisition of Globalstar on October 27, giving its planned direct to device fleet its own mobile satellite spectrum.

Continue Reading

News

Tesla Semi catches fire in California: what we know

Published

on

Credit: KTVU

A Tesla Semi caught fire in Hayward, California, which caused both directions of traffic to shut down for hours before being completely reopened early on Wednesday, the California Highway Patrol said.

The fire occurred just after 5:30 local time in Hayward on Tuesday, as the Semi caught fire in the southbound lanes of I-880 before CHP officials made the decision to shut down both lanes of traffic due to potential risks from hazardous chemical smoke.

There were no injuries reported.

The cause of the fire is currently unknown, as neither Tesla nor the CHP have not determined a cause.

However, some images taken before the Semi was completely destroyed by the fire seem to indicate this might have been an older unit, as it appears to be one of the designs that Tesla shipped as part of its pilot program, before revising it and starting mass production just a month ago.

At the time of publication, CHP had not returned our request for a comment for additional details, including the Semi involved and any potential collaboration on an investigation between the CHP and Tesla. We will update this story when we hear back from them.

The southbound lanes were reopened at 3:30 a.m. on Wednesday, with the northbound lanes opening last night a few hours after the fire began. The CHP did state that the lithium batteries were “incredibly difficult to extinguish,” according to NBC Bay Area.

The truck’s driver said that the Semi caught fire, but he did not have an explanation.

An estimated 5,000 to 7,000 semi-truck and large commercial vehicle fires occur on U.S. roadways every year.

Continue Reading