Tag: SpaceX

4th Starship prototype passes tank pressure test

8:41 am

Capitlism in space: SpaceX’s fourth Starship prototype has successfully passed a tank pressure test, the first to do so, allowing engine testing to now begin.

In the end, SN4 passed the cryogenic proof test – hitting 4.9 bar. SpaceX CEO Elon Musk admitted in a tweet that this was “kind of a soft ball…” However, “that’s enough to fly,” he added. It is now expected to move on to engine testing within the coming days.

Currently, SpaceX has three flight-ready Raptor engines waiting for the opportunity to participate in the testing. One of these engines will be installed on SN4. A Raptor engine is not installed until after the cryogenic proof test, as that test uses hydraulic pistons to simulate the forces created by Raptors during flight.

After SpaceX performs the Raptor installation on SN4, teams will need to conduct checkouts of the engine on the vehicle. These will include gimbal, ignitor, and fuel pre-burner tests, among others. Only then will SpaceX be ready to attempt a static fire. April 29 was originally the target for a static fire test, but a one day delay with the cryogenic proof test means that the static fire is now likely targeting no earlier than April 30

All in all, the company’s target of doing a hop with this prototype this summer appears increasingly likely.

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NASA’s safety panel rubberstamps May 27 manned Dragon launch

11:03 am

NASA’s safety panel has apparently reluctantly given its “okay” for the launch of the first manned Dragon launch on May 27th.

NASA’s Aerospace Safety Advisory Panel (ASAP), meeting by teleconference April 23, said it was unable to talk with NASA’s commercial crew program during its quarterly meeting, which was held virtually because of the coronavirus pandemic. The panel’s chair, Patricia Sanders, said that scheduling issues prevented a meeting, but that her committee planned to hold a “part 2” of their quarterly meeting in early May to discuss commercial crew and other topics not taken up this week.

Sanders said the panel has been kept up to date by NASA about commercial crew activities, including plans for SpaceX’s Demo-2 crewed test flight scheduled for May 27. “We are aware of a few technical items that remain to be more fully understood,” she said, “but the path forward appears feasible.”

In other words, it appears that NASA’s management might have taken advantage of the Wuhan panic to cut the panel off from the decision-making process, possibly because this panel has acted now for years to slow progress and in fact discourage any American manned launches at all, out of an almost irrational fear of any failure.

Their recommendations have sometimes verged on the ludicrous, such as an insistence that no manned launch be scheduled until a lot of paperwork was filled out.

It could also be that the panel has recognized at last (or maybe NASA management told them in no uncertain words) that we now have to proceed with American manned missions, since with the expiration of our contract with the Russians we have no other options.

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SpaceX rolls out next Starship prototype

9:59 am

Capitalism in space: SpaceX has completed construction of its next Starship prototype and has moved it to its test stand in preparation for further tests.

This is the fourth prototype. If the tank pressure tests go well, they hope to add engines and do a twelve mile hop with this prototype, landing vertically. If not, they will try again with later prototypes. Regardless, the goal is to do that hop this year.

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Swarm and Momentus team up to launch and position satellites

9:37 am

Capitalism in space: Swarm, builder of the tiny cubesats dubbed SpaceBees, has teamed up with Momentus to use that company’s Vigoride cubesat upper stage to position its satellites in different orbits after launch.

Under an agreement announced April 22, Momentus will arrange rides for 12 Swarm SpaceBee satellites on a SpaceX Falcon 9 rideshare mission in December 2020 with additional SpaceBee launches scheduled in 2021 and 2022.

To offer global coverage for customers seeking to relay messages through the internet, Swarm satellites must be stationed in different orbital planes and spread out within those orbital planes like a string of pearls, Sara Spangelo, Swarm co-founder and CEO, told SpaceNews.

For the Falcon 9 launch in December, Momentus will not move Swarm SpaceBees to a new orbital plane. In the future, Momentus’ Vigoride in-space shuttle will offer Swarm the option of moving SpaceBees from the rocket’s drop-off point to different locations, Negar Feher, Momentus vice president of product and business development, said by email.

Both companies have raised significant investment capital.

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SpaceX successfully launches 60 more Starlink satellites

1:28 pm

Capitalism in space: SpaceX today successfully launched 60 more Starlink satellites.

The launch was significant in several ways. They reused the first stage for the fourth time, landing it successfully. They reused the fairing for the second time.

And with this launch, the Falcon 9 has now flown more than the Atlas 5, and has the most launches of any active American rocket.

This flight marks a major point in U.S. launch operations, as Falcon 9 reaches 84 flights to its name and officially takes the mantle from Atlas V as the most flown, currently operational U.S. rocket.

Atlas V began flying on 21 August 2002 and has 83 flights to its name after 18 years — for an annual rate of 4.6 launches. Falcon 9 began flying on 4 June 2010 and will reach 84 flights in just under 10 years with a flight rate of 8.4 launches per year.

That SpaceX overtook the Atlas 5 so quickly indicates exactly how successful SpaceX has been in grabbing market share from all its launch competitors.

I have embedded the video of the launch below the fold.

The leaders in the 2020 launch race:

6 China
6 SpaceX
5 Russia

The U.S. now leads China 10 to 6 in the national rankings.
» Read more

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Rock droplets hitting a Martian plain

12:42 pm

Depressions in Amazonis Planitia
Click for full image.

Cool image time! The photo the right, rotated, cropped, and reduced to post here, is not only cool, it contains a punchline. It was taken by the high resolution camera on Mars Reconnaissance Orbiter (MRO) on February 11, 2020 and shows one small area between two regions in the northern lowlands of Mars, dubbed Amazonia Planitia (to the south) and Arcadia Planitia (to the north) respectively.

This region is thought to have a lot of water ice just below the surface., so much in fact that Donna Viola of the University of Arizona has said, “I think you could dig anywhere to get your water ice.”

I think this image illustrates this fact nicely. Assuming the numerous depressions seen here were caused by impacts, either primary or secondary, it appears that when they hit the ground the heat of that impact was able to immediately melt a wide circular area. My guess is that an underwater ice table immediately turned to gas so that the dusty material mantling the surface then sagged, creating these wider circular depressions.

Of course, this is merely an off-the-cuff theory, and not to be taken too seriously. Other processes having nothing to do with impacts could explain what we see. For example, vents at the center of these craters might have allowed the underground ice to sublimate away, thus allowing the surface to sag.

So what’s the punchline?
» Read more

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Russians slash their launch prices by 39%

9:08 am

Capitalism in space: Having lost their entire commercial market share because of SpaceX’s lower prices, the Russians have finally decided to slash their launch prices by 39%.

As the article notes, the cost for a Proton rocket launch was once $100 million. Then SpaceX came along with a $60 million pricetag. At first the Russians poo-pooed this, and did nothing. When their customers started to vanish however they decided to finally compete, so a year ago they cut the Proton price to match SpaceX’s.

Because of SpaceX’s ability to reuse its first stages, however, that $60 million price no longer worked. SpaceX had a year earlier lowered its prices even more, to $50 million, for launches with used first stages.

This new price slash by Roscosmos probably brings their price down to about $36 million, and thus beats SpaceX.

We shall see whether it will attract new customers. It definitely is now cheaper, but it is also less reliable. Russia continues to have serious quality control problems at its manufacturing level.

That SpaceX’s arrival forced a drop in the price of a launch from $100 million to less than $40 million illustrates the beautiful value of freedom and competition. The change is even more spectacular when you consider that ULA, the dominant American launch company before SpaceX, had been charging between $200 to $400 million per launch. For decades the Russians, ULA, and Arianespace refused to compete, working instead as a cartel to keep costs high.

SpaceX has ended this corrupt practice. We now have a competitive launch industry, and the result is that the exploration of the solar system is finally becoming a real possibility.

Correction: I originally called ULA “the only American launch company before SpaceX.” This was not correct, as Orbital Sciences, now part of Northrop Grumman, was also launching satellites. It just was a very minor player, with little impact. It was also excluded from the military’s EELV program, and thus could not launch payloads for them after around 2005.

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First manned Dragon flight scheduled for May 27th

10:30 am

Capitalism in space: NASA today officially announced May 27, 2020 as the scheduled launch date for the first manned Dragon flight to ISS, the first time American astronauts will fly from American soil on an American rocket in an American spacecraft since the shuttle was retired almost a decade ago.

The launch is set for 4:32 pm (Eastern), and I am sure will be live streams by both NASA and SpaceX.

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SpaceX reuses sections of damaged Starship prototype for next version

9:07 am

Capitalism in space: In building its fourth Starship prototype for testing, SpaceX has decided to reuse large sections of the previous Starship prototype, badly damaged during a pressure test several weeks ago.

On April 15th, eight days after Starship SN3’s [the damaged third prototype] remaining aft section was cut in half, the rearmost half – known as the skirt – was spotted stacked beneath a brand new engine section built for SN4. While confirming that a significant part of SN3 will be reused on SN4, it also indicates that only a less critical SN3 remnant was fit to join SpaceX’s next prototype.

Though they are not reusing the engines from that third prototype, I have full confidence they will, as they were part of the same bottom section of that prototype that was damaged during the test. This statement is incorrect. I had mistakenly assumed that because SpaceX had said it planned actual test hops eventually with this third prototype that three engines were already in place. They were not.

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First manned Dragon mission slips to end of May

9:12 am

Capitalism in space: According to NASA administrator Jim Bridenstine, the first manned flight of SpaceX’s Dragon capsule will now occur at the end of May, not mid-May, and will last two or three months.

“I think we’re really good shape,” Bridenstine said in an interview Thursday. “I’m fairly confident that we can launch at the end of May. If we do slip, it’ll probably be into June. It won’t be much.”

The article at the link also reveals that the two astronauts will spend between two to three months on board ISS, not two weeks as originally planned.

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Boeing’s fall from grace at NASA

9:26 am

Eric Berger at Ars Technica yesterday uncovered a NASA report that outlined its selection process for awarding a contract for providing cargo to the agency’s proposed Lunar Gateway space station — eventually won by SpaceX — that gave Boeing’s proposal a terrible ranking.

Of the four contenders, [Boeing] had the lowest overall technical and mission suitability scores. In addition, Boeing’s proposal was characterized as “inaccurate” and possessing no “significant strengths.” Boeing also was cited with a “significant weakness” in its proposal for pushing back on providing its software source code.

Due to its high price and ill-suited proposal for the lunar cargo contract, NASA didn’t even consider the proposal among the final bidders. In his assessment late last year, NASA’s acting chief of human spaceflight, Ken Bowersox, wrote, “Since Boeing’s proposal was the highest priced and the lowest rated under the Mission Suitability factor, while additionally providing a conditional fixed price, I have decided to eliminate Boeing from further award consideration.” [emphasis mine]

The highlighted words could possibly be a death sentence for Boeing. The company has numerous other serious problems, including its commercial 737-Max airplane, its KC-46 Pegasus tanker for the Air Force, and of course its SLS rocket for NASA. For NASA to say that it will no longer consider Boeing in future contract bidding, especially since NASA has been one of Boeing’s biggest customers for decades, cannot be good for the company’s already badly suffering bottom line.

Berger also notes how much NASA’s attitude toward Boeing has changed since the agency removed Bill Gerstenmaier as head of its manned space operations. Gerstenmaier had apparently given Boeing the highest marks routinely, and appeared to have lost his ability to look at the company objectively. Moreover, his (and NASA’s) kid-glove treatment of Boeing for decades probably contributed to that company’s sloppy bid on the Lunar Gateway cargo contract. They were likely not used to tough questioning, and didn’t put the proper effort into writing their bid.

For the taxpayer and the American space effort, however, this report is wonderful news. It appears that NASA is breaking its tight and blind partnership with the big space contractors that has for decades handicapped the nation’s ability to get things built in space. These contractors have not been able to deliver, but because of their powerful allies on Congress, NASA has for years kowtowed to them in contract awards.

Now however it appears NASA’s management has become quite willing to reject these powerful companies, despite Congressional backing, in order to get the best deal and the best product, for the nation.

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SpaceX moves forward on Starlink launch April 16

9:55 am

Capitalism in space: Despite the recent postponement by customers of two other planned launches because of the Wuhan panic, SpaceX appears to be moving ahead with plans to launch another sixty of its own Starlink satellites on April 16.

According to one unconfirmed news report, six SpaceX employees have tested positive for coronavirus. The company has not commented, however, either on this report or on its own internal policies for dealing with the Wuhan panic.

The Space Force meanwhile has not shut down its range operations in Florida, thus allowing launches from anyone to go forward.

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