Tag: freedom

Congressional report worries over Falcon 9 engine cracks

11:05 pm

A forthcoming congressional report, reported by the Wall Street Journal, reveals that NASA is concerned about cracks that occur in the turbopumps of SpaceX’s Merlin engines.

The newspaper says the report has found a “pattern of problems” with the turbine blades within the turbopumps, which deliver rocket fuel into the combustion chamber of the Merlin rocket engine. Some of the components used in the turbopumps are prone to cracks, the government investigators say, and may require a redesign before NASA allows the Falcon 9 booster to be used for crewed flights. NASA has been briefed on the report’s findings, and the agency’s acting administrator, Robert Lightfoot, told the newspaper that he thinks “we know how to fix them.”

A spokesman for SpaceX, John Taylor, said the company already has a plan in place to fix the potential cracking issue. “We have qualified our engines to be robust to turbine wheel cracks,” Taylor said. “However, we are modifying the design to avoid them altogether. This will be part of the final design iteration on Falcon 9.” This final variant of the Falcon 9 booster, named Block 5, is being designed for optimal safety and easier return for potential reuse. According to company founder Elon Musk, it could fly by the end of this year.

Here’s the real scoop: SpaceX initially built the engines to fly once, just as every single rocket company has done in the entire history of space, excluding the space shuttle. Under these conditions, the cracks could be considered an acceptable issue, which is what they mean when they say “We have qualified our engines to be robust to turbine wheel cracks.” My guess is that they tested the engines, found that the cracks were not a significant problem for a single flight, especially because the Falcon 9 rocket uses nine Merlin engines on the first stage and thus has some redundancy should one fail. And based on SpaceX’s flight record — no launch failures due to failed engines — that conclusion seems reasonable.

SpaceX is now redesigning to eliminate the cracks, however, because such cracks are not acceptable for engines that will fly multiple times on reused first stages.

Thus, this story, as leaked, appears to me to be a hit job by powers in Congress who dislike the competition that SpaceX poses to big government rockets like SLS. SLS will use salvaged shuttle engines, designed initially for many reuses, and thus are superior in this manner to SpaceX’s Merlin engines. The shuttle engines however were also built by the government, which didn’t care very much about the cost of development, or making any profits. The comparison thus is somewhat bogus. Moreover, I suspect these cracks were only discovered after SpaceX successfully landed and recovered some first stages. To put them on trial in the press now for doing good engineering research and redevelopment seems somewhat inappropriate.

The report itself has not yet been released, though it does also note lingering issues with the parachutes being developed for Boeing’s Starliner capsule.

Overall, both companies are struggling to start their operational flights by 2019. For Congress or NASA to try to put more roadblocks up in that development seems most counterproductive.

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More new robots from Boston Dynamics

4:34 pm

The video at the link shows off SpotMini, of video of which I posted previously. However, the first robot shown is one they have named Handle and is something they admit could be “nightmare-inducing.” It walks upright on two legs, but instead of feetpods it has wheels, giving it the ability to move very fast. And for some reason, they put its arms on backwards so that the elbows bend inward instead of outward.

Watch the video. The robot design work here is truly breath-taking.

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The ships of Hanjin six months after it went bankrupt

1:44 pm

Real news: Six months ago the shipping company Hanjin went bankrupt, stranding its 96 container ships worldwide. This article takes a detailed look not only on what happened to those ships since, but also at the state of the entire shipping industry.

There was a time when Hanjin’s collapse in August and this follow-up story would have been major news stories, covered by all the leading mainstream press outlets. No more. Even though it indicates significant financial and economic trends that should concern anyone who is serious about being an educated citizen, the press doesn’t cover it, and the public today really doesn’t care.

Just another indicator that a new dark age is looming.

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Violent rioters shut down free speech at UC-Berkeley

10:39 pm

Jack-booted thugs: Violent protesters tonight shut down a speech by Breibart editor Milo Yiannopoulos tonight at UC-Berkeley, once home to the Free Speech movement of the 1960s.

Hundreds of protesters began throwing fireworks and pulling down metal barricades police set up to keep people from rushing into the student union building where Yiannopoulos had been scheduled to speak. Windows were smashed and fires were set outside the building on Sproul Plaza as masked protesters stormed it, and at 6 p.m., two hours before his speech was to begin, police decided to evacuate Yiannopoulos for his own safety. The protest later moved on to city streets, where storefront windows were smashed.

Berkeley police said three to four people were injured and some people, including a man who said he had hoped to see Yiannopoulos speak, were seen with their faces bloodied. There were no immediate reports of arrests.

Police said protesters threw bricks and fireworks at police officers. University police locked down all buildings and told people inside them to shelter in place, and later fired rubber pellets into the crowd of protesters who defied orders to leave the area. Police called in support from other law enforcement agencies and warned protesters that they might use tear gas.

These protesters are no different than Hitler’s brown-shirts, aimed at intimidating and hurting those they do not like. They have made it impossible for free speech to be exercised on American campuses. Worse, it is increasingly evident that the administrations at these universities are complicit in these protests by not taking sufficient action to stop them. If you are a donor to these universities, it is time you stopped giving them money. And if they depend on tax dollars, that money faucet should be shut off, immediately.

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Russia proposes increased space cooperation with the U.S.

9:48 pm

They need the money: At a science conference on Tuesday the Russian ambassador to the United States stated that his country would welcome increased space cooperation between the two countries.

“I think it would be premature for me to speculate as to whether this zone of overlapping interests will increase or decrease,” Kislyak said. “We haven’t heard a new policy yet from the United States.” He suggested, though, there may be opportunities for the countries to cooperate on NASA’s long-term plans for human Mars exploration. “That is moon exploration, which is very much on our agenda. It’s space medicine and many, many other issues,” he said. “Our programs are not identical, but there’s always been a lot of overlap that provides room for serious and significant cooperation.”

“If the U.S. government chooses programs that would be extending that kind of cooperation,” he added, “they will find us to be willing to work with you.”

As I said, they need the cash. They want to keep their space industry alive, but low oil prices combined with the corruption that has shut down their launch industry has left them very cash poor. A combined Russian/SLS/Orion project to the Moon would be very helpful for them.

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ESA commits $91 million to reusable rocket engine development

7:32 pm

The competition heats up? Despite a general lack of interest in reusability, the ESA has now committed $91 million to develop a new low cost prototype reusable rocket engine.

In an interview with SpaceNews, Airbus Safran Launchers CEO Alain Charmeau said FLPP is allocating 85 million euros ($91 million) to Prometheus to fund research and development leading to a 2020 test firing. Now that Prometheus is an ESA program, Charmeau expects more countries will get involved. “ESA will pay the contract to Airbus Safran Launchers and then Airbus Safran Launchers will cooperate with European industry, of course France and Germany, but we will have also contributions from Italy, Belgium, Sweden and probably a couple of others to a smaller extent,” Charmeau said.

This project reminds me of many NASA development projects. The agency spends the money to do a test firing, but the prototype is never used and gets abandoned as soon as the test is completed.

Things might change, however, come the 2020s. By then I think American companies will be quite successful in their effort to create reusable rockets, and that will leave Europe in the lurch competitively. Their solution at this time for combating that future competition however is not getting more competitive. Instead, as noted in the article at the link, Airbus Safran, the company building Ariane 6, wants the ESA to compel its members to use their rocket, regardless of cost.

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How government wrecked the gas can

12:05 pm

Link here. This story should not surprise you. More important however are the article’s concluding words:

Ask yourself this: If they can wreck such a normal and traditional item like this, and do it largely under the radar screen, what else have they mandatorily malfunctioned? How many other things in our daily lives have been distorted, deformed and destroyed by government regulations?

If some product annoys you in surprising ways, there’s a good chance that it is not the invisible hand at work, but rather the regulatory grip that is squeezing the life out of civilization itself.

Almost all of the petty technological annoyances we struggle with today are the result of foolish federal regulation.

Hat tip John Harman.

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Almost 200 federal workers to take “civil disobedience” class

9:50 am

One hundred and eighty federal workers have signed up to take “civil disobedience” class on how to resist the Trump administration.

Dozens of federal workers have reportedly attended a support group for civil servants that serves as a forum for discussing opposition to the Trump administration. Some federal employees have already expressed defiance against the Trump administration following a gag order, which has since been lifted, that restricted the Environmental Protection Agency and departments of Agriculture and Health and Human Services from contacting the press or posting about the administration on social media.

This will not end well for these federal workers, which in the long run will be good for the American public. These people are not qualified to work in the federal government, because they think they are there to tell us what to do, rather than work for the American taxpayer who pays their salary. They will “resist”, Trump will find out who they are, and then he will fire them.

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The private weather industry moves forward

9:23 am

Link here. Key quote:

Early next month, aerospace start-up Spire Global of Glasgow, UK, will send a mini-satellite into space aboard an Indian government rocket. This ‘cubesat’ will join 16 others that are beaming a new type of atmospheric data back to Earth — and some scientists worry that such efforts are siphoning funding away from efforts to push forward the science of weather forecasting. Spire will begin providing observations to the US government on 30 April.

The probes track delays in radio signals from Global Positioning System (GPS) satellites as they pass through the atmosphere — a technique known as radio occultation. Researchers can use the data to create precise temperature profiles of the atmosphere to feed into weather-forecasting models — and eventually, perhaps, climate models.

Spire and its competitor GeoOptics of Pasadena, California, are participating in a pilot project announced in September by the US National Oceanic and Atmospheric Administration (NOAA), which is under pressure from the US Congress to determine whether it can cut costs by using commercial weather data. But scientists worry that such efforts are hampering the development of radio occultation. For years, they have sought federal funding for a project to advance the technique, but Spire and its competitors say they can offer high-quality data for a fraction of the price. [emphasis mine]

The quotes I have highlighted illustrate the hidebound leftist scientific opposition to introducing private enterprise into weather research. The article, published in the journal Nature, never once articulates in any way how these private efforts will hurt scientific research. What it does show is that the private effort will cost a tenth of the government effort while getting launched much faster. The money, however, will go to these private companies, and not the scientific factions that up until now have lived on the government money train.

The complaints here are the same as those I saw in NASA back about a decade ago when NASA first considered hiring private companies to provide it cargo to ISS. This is a turf war. NOAA is now being pressured by Congress to do the same: stop building big expensive weather satellites and buy the service for much less from the private sector. The scientific community sees this as a threat to its funding and is trying to stop it.

With Republicans controlling all three branches of the federal government I think this opposition will be fruitless, and we shall see the shift to private enterprise in weather data-gathering to accelerate.

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Recovered Falcon 9 first stage prepped for launch

8:53 am

The competition heats up: SpaceX on Tuesday revealed that last week it has completed the standard static fire testing of the recovered Falcon 9 first stage that it plans to relaunch in March.

A March launch would mean an 11-month turnaround, which is far from optimal, but understandable for the first time. SpaceX’s founder and chief executive, Elon Musk, has acknowledged the company must do better in the future if resuable flight is to become economically viable. He says the next—and likely final—iteration of the Falcon 9 rocket will be optimized for reuse. “Block 5 is the final upgrade of the Falcon architecture,” he tweeted earlier this year. “Significantly improves performance & ease of reusability. Flies end of year.”

It now seems likely that SpaceX will fly the landed boosters it currently has, at most once or twice, before retiring them, instead of multiple times. Although the company hasn’t elaborated on the problems with the engines, booster structure, or composite materials that have shown wear and tear after their orbital launches and returns, Musk is confident that changes to the Block 5 version of the rocket will solve the problem. “I think the F9 boosters could be used almost indefinitely, so long as there is scheduled maintenance and careful inspections,” he has said.

In other words, SpaceX has had — for the first time in history — the opportunity to inspect a number of used first stage rockets, and that precious knowledge is making it possible for them to upgrade the stage design to make future stages more hardy. In fact, those future stages won’t be stages, but reusable vessels that SpaceX could even name if it wished.

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Gorsuch picked by Trump for Supreme Court

6:38 pm

President Trump tonight named Neil Gorsuch as his pick to replace Antonin Scalia on the Supreme Court.

My fear that Trump would go for the more moderate Thomas Hardiman has proven unfounded. Instead, this more conservative choice once again suggests that Trump is shifting increasingly to the right.

In fact, I think the insane and insulting attacks brought against Trump by the left have actually served to make him more conservative. As Rush Limbaugh noted today,

Would you like an illustration of what I mean by Donald Trump not being ideological and how it’s a problem? He understands he has opposition. How could he not? (chuckles) I mean, I’m sure he knows that he’s got opposition. Don’t misunderstand me, now. And I’m sure that he may have had his eyes opened about some of these people. In his mind, they’re Democrats. Liberal, conservative, that’s not in his lexicon, folks. I’m not offering this as a criticism. It’s just a truth. It’s something that, if you want to understand Trump, then there’s no better deconstructor of Trump and explainer of Trump who’s not in the inner circle than me.

All during the campaign I did my best to explain to everybody — leftists, media, conservative, Republicans, Never Trumpers — who Trump is, why Trump is, why Trump was winning, who Trump’s supporters are. And the thing that I kept saying is, “He’s not ideological.” So he knows he’s got opposition, he knows Democrats, and he’s probably had his eyes opened here. I’m sure that over the course of his life some of these people now calling him names trying to destroy him have been his friends. So his eyes are no doubt opened. I don’t doubt that.

When Trump first announced his candidacy, everything he did and said at that time fit with Limbaugh’s analysis, except that at the time I think Trump was much more middle of the road. I think he truly believed his liberal background working closely with Democrats would make them treat him decently. Instead, they have come at him guns blazing, calling him the worst sort of names, making the most vile accusations against him, and even attacking his family and his children.

The result? Trump has, as Limbaugh notes, had “his eyes opened.” He might not be a philosophical conservative, but more and more it appears that he recognizes the corrupt hate coming from the left, and is less and less inclined to give them an inch. Instead, he moves rightward. I also think this is the same pattern we are seeing nationwide among voters.

Right now the Democrats in the Senate look like they are planning to copy the strategy to try to block Trump’s Cabinet appointees used by Texas and Wisconsin Democrats in 2003 and 2011 respectively.

This is not the first time Democrats have blocked a Republican majority from proceeding by refusing to take their seats and thus denying Republicans a quorum. In 2003, 11 Democrats in the Texas House of Representatives literally fled the state for weeks in order to prevent a redistricting plan favored by Republicans. Eventually, one of them returned and the redistricting plan was passed. More recently, in 2011, Wisconsin Democrats fled to Illinois for three weeks to avoid a vote on Republican Gov. Scott Walker’s budget bill because of provisions that were opposed by Wisconsin unions. However, the GOP-controlled legislature defeated the Democrats’ maneuvers by separating these bills from the budget and passing them separately.

In both cases, the Democrats not only failed to win, but their actions caused the voters to move to the right, voting in more Republicans and significantly reducing Democratic influence in both these states. With Wisconsin the result has been the shift of that state from a blue to a red state.

They say that Einstein called insanity doing the same thing over and over again and expecting a different result. I think this nicely defines the Democratic Party these days.

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