Tag: Starship

SpaceX’s decision to build launchpad with Starship tanks proves the rocket will be cheapest ever built

10:10 am

Capitalism in space: The decision by SpaceX’s to build the tank farm for its Starship/Super Heavy launchpad at Boca Chica using Starship tanks, rather than inexpensive off-the-shelf storage tanks, strongly suggests that the company’s manufacturing facility for building those tanks makes them very inexpensive, and also suggests that the final rocket will be as cheap to launch as SpaceX has promised.

SpaceX is effectively taking identical rocket parts, slightly tweaking a handful of those parts, and turning what could have been a rocket into a propellant storage tank. This is significant because relative to all other rockets in history, even including SpaceX’s own Falcon 9 and Heavy, building storage tanks with unchanged rocket parts on a rocket assembly line would be roughly akin to hiring Vincent van Gogh to paint lane lines.

Ever since Elon Musk made the radical decision to switch from composite structures to stainless steel, Starship has always aimed to be radically different than any large rocket before it. Crucially, by using commodity steel, the CEO imagined SpaceX would be able to build Starships fairly easily and for pennies on the dollar next to even SpaceX’s exceptionally affordable Falcon 9. In the last 18 months, it’s become apparent that SpaceX has built a factory capable of churning out one or two massive steel rockets per month and is willing to consign at least four or five of those Starship prototypes to all-but-guaranteed failures for the sake of data-gathering and iterative improvement.

Technically, the most logical conclusion would be that Musk was right and that SpaceX has quickly developed the ability to build steel rockets larger than any other launch vehicle on Earth for perhaps just $5M or less apiece.

The analysis at the link is detailed and worth reading. If correct, this decision by SpaceX proves that Starship and Super Heavy will be the cheapest rocket ever flown, even though it will be the largest ever flown, and also completely reusable.

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Methane tank leak caused Starship #11 failure

9:24 am

Capitalism in space: According to Elon Musk, a small leak of methane from one tank caused the failure of the eleventh Starship prototype. From Musk’s tweet:

Ascent phase, transition to horizontal & control during free fall were good.

A (relatively) small CH4 leak led to fire on engine 2 & fried part of avionics, causing hard start attempting landing burn in CH4 turbopump.

This is getting fixed 6 ways to Sunday.

Meanwhile, prototype #15 is getting prepped for rollout to the launchpad (Numbers 12-14 were scrapped), and the first prototype of first stage Super Heavy is being assembled to testing. It is presently unclear when either will take place, though the company still has a target date of July for its first orbital launch. According to Musk, the first orbital prototypes of Starship will be those numbered 20 or higher.

“Those ships will be orbit-capable with heat shield & stage separation system,” Musk tweeted. “Ascent success probability is high. However, SN20+ vehicles will probably need many flight attempts to survive Mach 25 entry heating & land intact.”

Knowing those first orbital ships will likely not land properly raises the question as to where they will be aimed to come down. SpaceX now owns two retired floating oil platforms, and is preparing them for use by Starship/Super Heavy. It could very well be that test flights of prototype #20+ will take place to and from those pads, out in the ocean, so as to minimize any risk to populated areas. Doing so will also allow SpaceX to hone its procedures for moving these big spaceships to and from the platforms.

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FAA says it will “lead” investigation into Starship #11 crash yesterday

9:44 am

They’re coming for you next: The Federal Aviation Administration (FAA) announced today that it will “oversee” the investigation into the crash at landing yesterday by SpaceX’s eleventh Starship prototype.

The Federal Aviation Administration, which had an inspector at SpaceX’s facilities to observe the test flight, said in a statement that the FAA will oversee the company’s investigation into the “prototype mishap.” The FAA has conducted similar mishap investigations after previous Starship test flights. “The [Starship] vehicle experienced an anomaly during the landing phase of the flight resulting in loss of the vehicle,” an FAA spokesperson said. “The FAA will approve the final mishap investigation report and any corrective actions SpaceX must take before return to flight is authorized.”

The FAA noted that it will also work with SpaceX to identify reports of light debris in the area, saying that there have yet to be any reported injuries or damaged to public property.

What will really go on here is that an FAA official will observe closely as SpaceX conducts the investigation. That official might have some background in space engineering, but he or she will be completely unprepared to actually lead the investigation. Thus in the end the FAA will really only be able to rubber stamp SpaceX’s conclusions, though it might as all governments do, demand its own pound of flesh before issuing that stamp.

Up to now the FAA has tried very hard to work with the new commercial space companies, especially SpaceX, doing as little as it can to impede their progress. There are strong signs however that this might now change with the Democrats in control of the White House and Congress. If so, expect the FAA to cause SpaceX some grief during this investigation, grief that could significantly delay further test flights.

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Congress taking aim at SpaceX and Starship testing

9:55 am

They’re coming for you next: The Democratic Party leaders on the House committee that normally does not overseer the FAA’s commercial space office have now raised their concerns about the recent test flights of SpaceX’s new rocket, Starship, in particular demanding an investigation into the flight of prototype #8, which the FAA claims had occurred despite one FAA issue.

The latest version of SpaceX’s FAA launch license for the Starship suborbital test flight program, issued March 12, allows those test flights to take place “only when an FAA Safety Inspector is present at SpaceX’s Boca Chica launch and landing site.”

The change stemmed from an investigation into SpaceX’s violation of that launch license during the SN8 test flight in December. SpaceX proceeded with the flight despite the FAA determining that the flight profile exceeded the maximum allowed risk to the uninvolved public for “far field blast overpressure” in the event of an explosion. While the SN8 vehicle exploded upon landing, there were no reports of damage outside of the SpaceX test site.

FAA directed SpaceX to investigate the incident, delaying the flight of the next Starship prototype, SN9. That investigation included “a comprehensive review of the company’s safety culture, operational decision-making and process discipline,” the FAA said in a Feb. 2 statement.

The FAA cleared SpaceX to proceed with launches, with SN9 and SN10 launching and landing — and both exploding upon or shortly after landing — on Feb. 2 and March 3, respectively. Neither caused any damage outside of the SpaceX test site.

The FAA’s response to SpaceX’s launch license violation, including the lack of any penalties beyond the investigation, prompted criticism from two key members of Congress. In a March 25 letter to FAA Administrator Steve Dickson, Reps. Peter DeFazio (D-Ore.) and Rick Larsen (D-Wash.) sought to “register our concerns” with the incident. DeFazio is chair of the House Transportation Committee and Larsen the chair of its aviation subcommittee.

Much of these claims about the flight of prototype #8 however only appeared to become a significant concern after the Biden administration and the Democrats took power in January. Prior to that the FAA did not seem very troubled by that flight. In fact, the so called risk, “far field blast overpressure,” seems very contrived, especially since we have now had four Starship crashes on its landing pad, with no evident damage to even SpaceX’s own equipment nearby. Prior to January 20th the FAA was untroubled. After January 20th it suddenly became a deadly issue requiring stricter supervision by the government, though what that FAA inspector on sight can do or even know about the launch is baffling.

What these Democrats really don’t like is that someone is freely accomplishing something without their supervision or control. Like mobsters looking to exhort money, they are essentially telling SpaceX, “Nice business you got here. Sure would be a shame if something happened to it.”

With today’s fourth Starship crash, expect the Demorats in Congress now to swarm like flies over manure, all aimed at shutting down the most innovative new American space company in decades.

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Starship prototype #11 crashes at landing

9:30 am

Capitalism in space: The fourth prototype of Starship to fly, #11, experienced another failure at landing early this morning, crashing onto its launchpad.

Below is SpaceX’s live feed, cued to begin at T-10 seconds. The video cuts out at T+5:49, just before landing. I have reviewed other live feeds and all that I can find so far were obscured by the cloudy conditions at landing.

Musk later tweeted the following:

‘At least the crater is in the right place!”

“Looks like engine 2 had issues on ascent & didn’t reach operating chamber pressure during landing burn, but, in theory, it wasn’t needed. Something significant happened shortly after landing burn start. Should know what it was once we can examine the bits later today.”

The next Starship prototype will be #15 (numbers 12-14 pulled when they decided to redesign based on the earlier flights).

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Another launch attempt for Starship #11 today

8:35 am

Starship #11 on launchpad, March 28, 2021
Screen capture from LabPadre Nerdle camera live stream,
taken at 10:27 am (Central).

UPDATE: Launch scrubbed because an FAA official was unable to get to the launch site today. Next attempt set for tomorrow.

Gee, launching rockets his hard. For government officials, however, getting on an airplane and arriving on time seems far more difficult.

Original post:
————————–
SpaceX is going to make another launch attempt today with its eleventh Starship prototype. The following live streams are presently available if you wish to watch:

When SpaceX adds its own live stream I will embed it below.

The screen capture on the right shows the status for the launch in that left column. When I captured the image they had only closed the road, which means the launch is still probably two hours away, at the least.

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Starship prototype #11 launch attempt today-SCRUBBED

8:55 am

Starship #11 on launchpad, March 26, 2021
Screen capture from LabPadre Nerdle camera live stream,
taken at 8:30 am (Pacific).

UPDATE: The test flight has been scrubbed for today, March 26th. They have not yet indicated why they scrubbed, or when they will try again.

Original post:
——————
Though SpaceX has not yet announced whether it will live stream the event, the company is going to attempt a six-mile flight of its eleventh Starship prototype today.

The following live streams are presently available if you wish to watch:

I will add other live streams as they become available. And if If SpaceX adds its own live stream I will embed it below.

UPDATE: SpaceX has now announced that it will live feed today’s Starship test flight. I will embed that broadcast below, when it goes live.

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Another Starhip update: Static fire test today for #11

9:02 am

Link here. If the static fire goes well, the test flight for Starship prototype #11 should occur in the next few days, possibly as soon as tomorrow.

The article at the link also reviews the possible testing schedule for future prototypes. The next Starship prototype being prepared for flight, #15, will likely not fly next. Instead, it appears that SpaceX is gearing up to first begin tanking tests on its first Super Heavy prototype.

All could change of course depending on tests and flights and construction.

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Update on SpaceX’s Super Heavy booster

9:55 am

Capitalism in space: According to this update on SpaceX’s Super Heavy booster, the first prototype is now stacked as two complete tank sections that only need to be welded together.

While a good amount of work still remains to weld the two halves together and connect their preinstalled plumbing and avionics runs, those tasks are largely marginal and will tweak the massive steel tower that’s now firmly in one piece. Comprised of 36 of the steel rings also used to assemble Starships, the first Super Heavy prototype – serial number BN1 – will stand roughly 67 meters (220 ft) tall from the top of its uppermost ring to the tail of its soon-to-be-installed Raptor engines.

At that height, Super Heavy BN1 is just 3 meters (~10 ft) shorter than an entire two-stage Falcon 9 or Falcon Heavy rocket – the second and third tallest operational rockets today. Of course, Super Heavy is just a booster and SpaceX says the rocket will stand at least 120m (~395 ft) tall with a Starship upper stage and spacecraft installed on top, easily making it the tallest (and likely heaviest) launch vehicle ever assembled.

The report also adds SpaceX’s confirmation that this prototype will never fly, but will be used solely for ground tests. It is the second prototype that will do the first short test hops, hopefully sometime this summer.

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SpaceX narrows Mars landing site for Starship to four prime locations

11:19 pm

The prime and secondary Martian landing sites for Starship

Capitalism in space: During this week’s 52nd Lunar and Planetary Science Conference, one poster [pdf] caught my eye as something significant. It was titled “SpaceX Starship Landing Sites on Mars.” The map to the right is figure 1 from that poster, annotated slightly by me based my earlier stories about SpaceX’s use of the high resolution camera on Mars Reconnaissance Orbiter (MRO) to research potential Martian landing sites for its Starship spacecraft. The stars indicate MRO images, most of which were described and linked to in my last major post about this SpaceX effort in November 2019.

The red spots covering some stars are the big story: SpaceX has narrowed its choice for its Starship landing site to four prime locations (indicated by the bright red spots) and three backup locations (indicated by the dark red spots). The images under the red spots numbered 2, 4, and 6 were linked to in my November 2019 post. The images under red spots marked by a “D” are earlier images taken by MRO when SpaceX was researching a potential Dragon landing site. The images under red spots labeled 1P and MRO are subsequent images taken by MRO since November 2019, with the 1P image previously linked to in a post in April 2020 entitled “The icy Phlegra Mountains: Mars’ future second city.”

The poster outlined why the prime candidate sites — PM1, EM16, AP1, and AP9 — were favored. For example, PM-1 in the Phlegra Mountains “…has the lowest latitude and elevation of the group, a clear association with LDAs [lobate debris aprons that resemble glacial features], well developed polygons, and has the highest SWIM [Subsurface Water Ice Mapping] score for geomorphic indicators of ice.”

EM 16 “…has a clear association with an LDA with nearby brain terrain and the strongest radar return for shallow ice and the highest combined SWIM score.”

AP1 “…appears to be the safest site and has a moderate combined SWIM score for ice.”

AP9 “…has the thickest ice from radar returns and geomorphology indicating shallow ice. It has the highest combined SWIM score for ice, but appears slightly rocky and rough.”

Below the fold are images, rotated, cropped, and reduced to post here, of the four primary landing sites, as well as links to the full images of all four plus the three back-up sites (AP8, EM15, and PM7).
» Read more

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Musk confirms goal of orbital Starship flight this year

9:23 am

Capitalism in space: Musk today confirmed the stories published earlier this week that SpaceX has a target goal of completing the first test orbital flight of Starship before the end of this year, possibly as early as July.

The only new news in the article is Musk’s confirmation. It does outline again the challenges SpaceX faces to meet this goal, recognizing that these dates are thus merely targets that almost certainly will not be met. It also recognizes that the targets tell us that development will continue to move forward swiftly, and that an orbital test flight is also likely not that far in the future.

Who wants to bet that a Starship/Super Heavy rocket reaches orbit before SLS? Right now the odds I’d say are about 50-50.

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Starship update: Prototype #11 could fly tomorrow

9:09 am

Capitalism in space: According to this Starship update, the 11th Starship prototype is scheduled for its static fire dress rehearsal countdown today, with the possibility of its first flight as early as tomorrow.

This paragraph about SpaceX’s overall Starship program however is more significant:

Following SN11’s flight, SpaceX will move on to SN15, 16, and 17, alongside testing with Super Heavy prototypes BN1 and BN2, before shooting for an orbital launch with SN20 and BN3. In typical SpaceX-style, that orbital launch has an astonishing – and unlikely – “by July 1” target. At the very least, this target portrays SpaceX’s Starship drive to push the vehicle into operation.

The reason they are going directly from prototype #11 to #15 is because they scrapped #s 12, 13, and 14 after the flights of #9 and #10. They had learned enough, and those scrapped prototypes would not have taught them anything. Instead, they incorporated the learned changes to #15 and will fly that next.

The July 1st launch date is certainly overly optimistic. It also signals the company’s determination to try to get that first orbital flight off this year. Based on their pace, it would be foolish to dismiss this as a possibility.

It also signals what I think is an internal unstated goal within SpaceX to have Starship beat SLS into orbit. Nor would anyone be wise to consider that impossible. In fact, I consider it quite likely.

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