SpaceX
SpaceX’s Starship, Starhopper prototypes continue slow and steady progress
The last few weeks of SpaceX’s work on Starship and Starhopper prototypes has been marked by less visible progress relative to the past few months. The changes that are visible, however, confirm that its Boca Chica engineers are working around the clock to complete the first orbital Starship prototype.
At the same time, it appears that SpaceX’s South Texas facilities are preparing for a rapid period of expansion and build-up. New work around the ad-hoc Starhopper pad has recently begun, while construction of a second concrete jig for concurrent prototype fabrication and what will likely be a more permanent hangar and control facility are also ramping up. Things have been quiet news-wise for SpaceX’s McGregor and Hawthorne facilities but there is reason to believe that Raptor production and testing is going smoothly.
And over at its pal’s place, the orbital prototype (and the build-up of another jig)
?@BocaChicaGal
Dedicated Updates: https://t.co/FYHRkwZ2dd pic.twitter.com/glg8Yr6oO6— Chris B – NSF (@NASASpaceflight) April 20, 2019
Starship Alpha
The most obvious visible progress made in April is centers around SpaceX’s first orbital Starship prototype, soon to begin its third month of active construction. As of mid-March, the shells of two large steel barrel sections – together about 18 m (60 ft) tall – were fully erected at the build site, with a handful of other sections in various states of welding. The height of those two cylinders has remained unchanged since then but it’s safe to assume that a ton of work has been going on inside them, invisible to anyone viewing from public perspectives since drones were effectively banned in March. In other words, the two pieces – most likely the barrel sections of Starship’s liquid methane and liquid oxygen (LOX) tanks – are likely being carefully transformed into actual propellant tanks.
There is also a good reason for their height differential: the larger (LOX) section is almost exactly a third larger than the small section (methane) in part because of the physical reality that Starship will need almost exactly 33% more LOX than methane by volume. Large propellant tanks – particularly those meant for cryogenic fluids and spaceflight applications – are often quite complex, with the vast majority of that complexity happening under the hood. The above render was made while SpaceX was still planning on carbon fiber tanks and also appears to be significantly simplified, but it still offers a small look at some of that complexity.
Aside from successfully completing thousands of welds throughout the assembly, a lot of the effort of building an advanced tank is put into plumbing – both internal and external – needed to load, unload, pressurize, depressurize, and generally manage cryogenic (i.e. super cold) liquid propellant. SpaceX decided to utilize a partial balloon tank design to keep the steel skins of its stainless steel Starship and Super Heavy as thin as possible, adding yet another level of internal work due to the need for stringers and longerons on top of baffles and hardware to mount COPVs or header tanks.
Adding further complexity to the internal structure of Starship is the presence of major aerodynamic surfaces and landing legs, both of which will need to survive extreme stresses if they are to function as intended. Those structures must be aerodynamically streamlined and attach to the outside of Starship’s hull, likely requiring significant structural reinforcements both inside the spacecraft’s nose and rearmost propellant tank.
Super Heavy?
SpaceX began construction of a second concrete fabrication jig just a handful of days ago. Effectively a copy of a jig occupied with the larger of the two barrel sections of the orbital Starship prototype, the simple structure acts as a mount and includes a large door that allows scissor lifts to get inside the steel structure. The new jig is being built directly adjacent to Starship’s smaller barrel section, suggesting that it could simply be a way to concurrently work on both the LOX and methane tanks. Given the inherent simplicity of a concrete jig, it could also end up being used to support the simultaneous assembly and integration of the first Super Heavy booster prototype.
Back in December 2018, SpaceX CEO Elon Musk indicated that the first Super Heavy prototype would start production in “spring” (i.e. NET April 2019). Musk has also indicated that Starship and Super Heavy will be simultaneously built both in Boca Chica, Texas and Cape Canaveral, Florida. In general, SpaceX is clearly beginning another round of expansion and improvement for its Boca Chica facilities, including the new concrete jig and an entirely new building on the same plot of land.
Starhopper
Last but not least is SpaceX’s Starhopper prototype. After completing an inaugural round of multiple wet dress rehearsals (WDRs) and two Raptor static fires/hops, SpaceX technicians removed the vehicle’s lone Raptor engine on April 8th. Starhopper has remained more or less inactive in the last two weeks, aside from some work going on inside the vehicle (per the open access hatch).
Without a Raptor engine, there is admittedly not a whole lot that SpaceX can do with Starhopper, aside from additional WDRs if the first handful of tests were not enough. Instead, some minor work has been going on around the Hopper’s ad hoc pad, mainly taking the appearance of dirtmoving. Without aerial views, its hard to tell what exactly is taking shape, but it’s safe to say that Starhopper is simply waiting for additional Raptors to be produced, tested, and delivered to Boca Chica. Once more Raptors are ready, it’s understood that SpaceX will move into multi-engine (likely 3+) hop tests, perhaps loosing Starhopper from its tethers.
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Starship Flight 9 nears as SpaceX’s Starbase becomes a Texan City
SpaceX’s launch site is officially incorporated as Starbase, TX. Starship Flight 9 could launch on May 27, 2025.
SpaceX’s Starbase is officially incorporated as a city in Texas, aligning with preparations for Starship Flight 9. The newly formed city in Cameron County serves as the heart of SpaceX’s Starship program.
Starbase City spans 1.5 square miles, encompassing SpaceX’s launch facility and company-owned land. A near-unanimous vote by residents, who were mostly SpaceX employees, led to its incorporation. SpaceX’s Vice President of Test and Launch, Bobby Peden, was elected mayor of Starbase. The new Texas city also has two SpaceX employees as commissioners. All Starbase officials will serve two-year terms unless extended to four by voters.
As the new city takes shape, SpaceX is preparing for the Starship Flight 9 launch, which is tentatively scheduled for May 27, 2025, at 6:30 PM CDT from Starbase, Texas.
SpaceX secured Federal Aviation Administration (FAA) approval for up to 25 annual Starship and Super Heavy launches from the site. However, the FAA emphasized that “there are other licensing requirements still to be completed,” including policy, safety, and environmental reviews.
On May 15, the FAA noted SpaceX updated its launch license for Flight 9, but added: “SpaceX may not launch until the FAA either closes the Starship Flight 8 mishap investigation or makes a return to flight determination. The FAA is reviewing the mishap report SpaceX submitted on May 14.”
Proposed Texas legislation could empower Starbase officials to close local highways and restrict Boca Chica Beach access during launches. Cameron County Judge Eddie Trevino, Jr., opposes the Texas legislation, insisting beach access remain under county control. This tension highlights the balance between SpaceX’s ambitions and local interests.
Starbase’s incorporation strengthens SpaceX’s operational base as it gears up for Starship Flight 9, a critical step in its mission to revolutionize space travel. With growing infrastructure and regulatory hurdles in focus, Starbase is poised to become a cornerstone of SpaceX’s vision, blending community development with cutting-edge aerospace innovation.
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United Airlines debuts Starlink Wi-Fi on Detroit flight
United’s first passenger flight with Starlink Wi-Fi just landed in Detroit. Mainline flights to follow by year-end.
United Airlines debuted Starlink Wi-Fi on its first passenger flight to Detroit, marking a milestone in in-flight connectivity with SpaceX’s satellite internet.
On Thursday, the morning flight from Chicago’s O’Hare International Airport introduced high-speed, gate-to-gate Starlink internet for United Airlines passengers. The Starlink-equipped United Embraer E-175, tail number UA5717, departed at 7:35 a.m. for Detroit Metropolitan Airport.
United announced the rollout on X, stating, “That lightning-fast Wi-Fi we told you about? It’s here. Our first customers just found out what it’s like to break the Wi-Fi barrier and stream, scroll, shop, and game just like at home with Starlink. And it’s FREE for MileagePlus members. Rolling out across our fleet now.”
The service leverages Starlink’s 7,000+ low Earth orbit (LEO) satellites to deliver broadband globally, including in remote areas. United is the only major U.S. airline currently offering Starlink. The airline plans to expand the service across its two-cabin regional fleet and introduce it on mainline flights by year-end.
Sean Cudahy from The Points Guy tested Starlink’s Wi-Fi pre-launch, praising its ease and reliability. “I ran a speed test, and it clocked the Wi-Fi at 217 Mbps of download speed, and 26.8 Mbps of upload speed,” Cudahy shared, noting its suitability for long flights.
Beyond aviation, SpaceX is pitching Starlink as a GPS alternative, emphasizing its potential for Positioning, Navigation, and Timing (PNT) services. This dual capability underscores Starlink’s versatility.
In a letter to the FCC, SpaceX wrote, “One opportunity stands out as a particularly ripe, low-hanging fruit: facilitating the rapid deployment of next-generation low-Earth orbit (‘LEO’) satellite constellations that can deliver PNT as a service alongside high-speed, low-latency broadband and ubiquitous mobile connectivity.”
As SpaceX expands Starlink’s applications, from aviation to navigation, United’s adoption signals a broader shift toward satellite-driven connectivity on long flights. With plans to equip more aircraft, United and Starlink are redefining in-flight internet, promising seamless digital access at 30,000 feet.
News
SpaceX touts Starlink as GPS alternative in FCC PNT push
SpaceX highlighted Starlink’s potential to deliver PNT services alongside its broadband offerings.
SpaceX is positioning its Starlink constellation as a viable GPS alternative. In a letter to the Federal Communications Commission (FCC), SpaceX stated that it could leverage Starlink satellites for next-generation Positioning, Navigation, and Timing (PNT) solutions.
GPS has been run through a single provider in the United States, the Defense Department. The FCC intends to use Positioning, Navigation, and Timing (PNT) solutions to complement GPS technologies. In its letter, SpaceX highlighted Starlink’s potential to deliver PNT services alongside its broadband offerings in its letter to the FCC.
“As the Commission identifies specific actions to contribute to the whole-of-government PNT system resilience effort, one opportunity stands out as a particularly ripe, low-hanging fruit: facilitating the rapid deployment of next-generation low-Earth orbit (‘LEO’) satellite constellations that can deliver PNT as a service alongside high-speed, low-latency broadband and ubiquitous mobile connectivity,” SpaceX wrote.
SpaceX also emphasized its ongoing work to integrate PNT into its cellular Starlink service, which is expected to be launched with T-Mobile in July. The private space provider also stated that Starlink satellites already operate independently of GPS. This lays the groundwork for resilient PNT delivery across authorized frequencies, SpaceX noted in its letter.
“SpaceX has also been actively working to integrate PNT solutions into its direct-to-device commercial service offerings. In so doing, SpaceX can advance the Commission’s goal in this proceeding to maintain American leadership in next-generation PNT services both here at home and in over 130 countries it serves around the world.
“SpaceX looks forward to playing an integral role in creating a more robust, resilient, and secure PNT ecosystem for Americans and people around the world,” SpaceX noted.
SpaceX also advocated for a “technology-neutral approach” to GPS alternatives in its letter, while critiquing EchoStar’s unused 2GHz spectrum for mobile satellite services. Meanwhile, Globalstar, Apple’s satellite provider, also pitched its services as a GPS complement, stating that its services “can function as either an alternative or a complement to GPS.”
“Notably, Globalstar’s satellites transmit outside of the L-band, which provides PNT users with added immunity from GPS jamming and spoofing. In addition, Globalstar’s satellite transmissions at 2.4GHz are stronger than GPS signals, bolstering resilience, performance, and reliability,” GlobalStar noted.
SpaceX’s letter to the FCC can be viewed below.
Starlink GPS FCC by maria on Scribd
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