Author: Robert Zimmerman

Air Force requests info for new engine

8:54 am

Corporate welfare: The Air Force on Thursday issued a request for information from industry for the replacement of the Russian-made engines used by ULA’s Atlas 5 rocket.

Companies are being asked to respond by Sept. 19 to 35 questions. Among them: “What solution would you recommend to replace the capability currently provided by the RD-180 engine?” Air Force officials have told Congress they only have a broad idea of how to replace the RD-180. Estimates of the investment in money and time necessary to field an American-built alternative vary widely. Congress, meanwhile, is preparing bills that would fund a full-scale engine development program starting next year; the White House is advocating a more deliberate approach that begins with an examination of applicable technologies.

In the request for information, the Air Force says it is open to a variety of options including an RD-180 facsimile, a new design, and alternative configurations featuring multiple engines, and even a brand new rocket. The Air Force is also trying to decide on the best acquisition approach. Options include a traditional acquisition or a shared investment as part of a public-private partnership. [emphasis mine]

The Atlas 5 is built by Lockheed Martin. This is really their problem, not the Air Force or ULA. In addition, the Air Force has other options, both from Boeing’s Delta rocket family as well as SpaceX’s Falcon 9 rocket. For the government to fund this new engine is nothing more than corporate welfare, at a time when the federal government is swimming in debt and is essentially bankrupt.

5 comments

Judge orders release of documents withheld by DOJ in Fast-and-Furious

5:04 pm

A federal judge has ordered the Obama administration and the Justice Department to hand over some of the documents demanded by Congress in its investigation of the government’s gun-smuggling operation dubbed Fast and Furious.

The judge also ordered the Justice Department to provide Congress a list of withheld documents so that they will have a better idea of what documents should be made available.

One comment

High school student arrested for writing he killed his neighbor’s dinosaur with a gun

4:31 pm

Madness: A South Carolina high school student was arrested for writing — in a “What-I-did-during-summer-vacation” school assignment — that he killed his neighbor’s dinosaur with a gun.

Investigators say the teacher contacted school officials after seeing the message containing the words “gun” and “take care of business,” and police were then notified on Tuesday. Summerville police officials say Stone’s book bag and locker were searched on Tuesday, and a gun was not found. According to police, when Stone was asked by school officials about the comment written on the assignment, he became “very irate” and said it was a joke. A Summerville Police Department report states that Stone continued to be disruptive and was placed in handcuffs, and was told that he was being detained for disturbing schools.

The police are claiming that he was arrested because of his behavior when questioned. I don’t blame him. I think the teacher who reported him and the school officials who called the police should be fired immediately for downright stupidity. Such people are not competent to teach the young.

3 comments

A new map of the Middle East

10:38 am

Link here. The wide extent of Islamic State control is scary. It is also interesting that all of the U.S. airstrikes are outside those areas. At first glance it appears that we have terrible aim and are missing our targets. It is more likely that these are areas of dispute and we are supporting Iraqi and Kurdish efforts to regain the initiative.

10 comments

The weight of Comet 67P/C-G

10:26 am

Scientists, using radio and orbital data from Rosetta, have made their first estimate of the mass of Comet 67P/C-G.

For the Rosetta mission, this task comes under the umbrella of the Radio Science Investigation (RSI). Using 80 hours worth of tracking data between 6 August, since arriving at the comet, and up to 9 August, the RSI team made a first estimate of the comet’s mass as approximately 1×10^13 kg +/-10%, or about 10 trillion kilograms.

This is very much a preliminary number which will be refined significantly as the spacecraft continues its travels with the comet.

More here. This mass, when considered in conjunction with the nucleus’s size, suggests a very low density. If you could find an ocean large enough it would float.

Leave a comment

Arianespace and ESA sign contract for three launches

9:53 am

Arianespace and the European Space Agency (ESA) signed a contract on Thursday for the Ariane 5 rocket to launch 12 more of Europe’s Galileo GPS satellites on three launches.

This contract is a perfect example of European pork. Europe’s Galileo system might provide competition to the U.S. GPS and Russian Glonass systems, but I am not sure what additional capabilities it provides that will convince GPS users to switch to it. Instead, building it provides European jobs, while using the Ariane 5 rocket to launch it gives that increasingly uncompetitive rocket some work to do. In fact, this situation really reminds me of the U.S. launch market in the 1990s, when Boeing and Lockheed Martin decided that, rather than compete with Russia and ESA for the launch market, they instead decided to rely entirely on U.S. government contracts, since those contracts didn’t really demand that they reduce their costs significantly to compete.

Europe now appears to be heading down that same road.

One comment

Two additional Russian rocket engines arrive in the U.S.

9:38 am

Despite tensions over the Ukraine, a Russian cargo plane on Wednesday delivered two more Russian rocket engines to Alabama for their refurbishment and use in ULA’s Atlas 5 rocket.

This delivery gives ULA some additional breathing room. It the additional deliveries scheduled for later this year and early in 2015 happen, they will have even more breathing room for more Atlas 5 launches. Even so, their dependence on Russian engines is something that limits the company’s competitiveness in the emerging aggressive launch market.

2 comments

NASA’s Space Launch System searches for a mission

9:26 am

Managers of NASA’s Space Launch System (SLS) are searching for a mission that they can propose and convince Congress to fund.

Any honest read of this article will conclude that this very expensive rocket system is an absurd waste of money. It has no mission now, and will never get one considering the cost. Instead, NASA will spend billions to fly two test flights, both unmanned, and then the money will run out.

14 comments

Scientists baffled by unknown source of CFCs

1:10 pm

The uncertainty of science: Scientists have found that, despite their complete ban since 2007, one type of ozone-depleting CFCs are still being pumped into the atmosphere from some unknown source.

Carbon tetrachloride (CCl4), which was once used in applications such as dry cleaning and as a fire-extinguishing agent, was regulated in 1987 under the Montreal Protocol along with other chlorofluorocarbons that destroy ozone and contribute to the ozone hole over Antarctica. Parties to the Montreal Protocol reported zero new CCl4 emissions between 2007-2012.

However, the new research shows worldwide emissions of CCl4 average 39 kilotons (about 43,000 U.S. tons) per year, approximately 30 percent of peak emissions prior to the international treaty going into effect. “We are not supposed to be seeing this at all,” said Qing Liang, an atmospheric scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, and lead author of the study published online in the Aug. 18 issue of Geophysical Research Letters, a journal of the American Geophysical Union. “It is now apparent there are either unidentified industrial leakages, large emissions from contaminated sites, or unknown CCl4 sources.”

That there seems to be an unknown source of CFCs suggests strongly that the entire theory of CFCs destroying the ozone layer is faulty. If CFCs were being produced naturally in the past then the ozone layer should not exist based on this theory. That it does exist says the CFCs are not harmful to it and were banned unnecessarily.

8 comments

German journalists arrested by police in Ferguson

1:43 am

Modern American free speech: Two German journalists were arrested by police in Ferguson for wanting to take photographs of a burned out gas station.

The comments of one of the journalists was especially shameful:

This was a very new experience. I’ve been in several conflict zones: I was in the civil war regions in Georgia, the Gaza strip, illegally visited the Kaliningrad region when travel to the Soviet Union was still strictly prohibited for westerners, I’ve been in Iraq, Vietnam and in China, I’ve met Cuba dissidents. But to be arrested and yelled at and be rudely treated by police? For that I had to travel to Ferguson and St. Louis in the United States of America.

Except for the arrests of journalists there, I have not posted much about the situation in Ferguson, mostly because no one at present really knows what happened and the subsequent behavior of everyone has been exceedingly disgusting and uncivilized, undeserving to my mind of much attention.

5 comments

Sierra Nevada abandons its own hybrid engine for Dream Chaser

1:13 am

The competition heats up: Sierra Nevada has decided not to use its own hybrid engine on its Dream Chaser manned shuttle.

With the apparent decision by Virgin Galactic to also abandon this engine, it would appear that hybrid rocket technology is not yet ready for prime time, if ever.

Posted from Spokane, Washington, where Diane and I will be visiting my oldest friend Lloyd and his family for the rest of the week.

6 comments

Orbital plans upgrade to Antares

1:00 am

The competition heats up: On its next cargo mission to ISS Orbital Sciences plans on launching an upgraded Antares rocket.

For its third paid cargo mission to station, slated to launch Oct. 21, Orbital will replace the ATK Castor 30B Antares used for its latest launch with an ATK Castor 30XL. The upgrade will allow Cygnus to carry about 2,290 kilograms of cargo to station — an increase of nearly 40 percent by mass, compared with the second mission, according to Orbital’s Aug. 18 press release.

The Castor 30XL is the latest in the Castor 30 series ATK developed specifically as an Antares upper stage. A pair of Antares demonstration launches in 2013, which did not count toward fulfilling the company’s delivery-and-disposal contract with NASA, used the Castor 30A. ATK has lengthened subsequent versions of the motor, squeezing more power out of it by packing it full of more solid fuel.

Like SpaceX, Orbital Sciences is demonstrating the ability here to do operational missions simultaneously with developmental missions.

One comment

“For the Israelis, this time is different.”

9:59 pm

“Hamas has exacted a high price from Israel these past weeks. But it has also awakened a sleeping giant. The question now is whether the Palestinian cause is furthered, or dramatically weakened, by the fear this war has created.”

Read the whole thing. Combine this new Israeli resolve with the public relations disaster this war has been for Hamas and it seems obvious that there will be no easy concessions from the Israelis in any negotiations for years. And that I consider a good thing: The Israelis, as well as a good part of the civilized world, have finally realized that there is no point negotiating with someone who wants to kill you. Only when the Palestinians and the Arabs finally honestly and sincerely accept the presence of Israel will there be any chance for a negotiated settlement. And I don’t expect this anytime soon.

7 comments

Curiosity retreats from Hidden Valley

3:27 pm

Finding its sandy floor slipperier than expected, engineers have backed Curiosity out of Hidden Valley to drill some holes while they reassess the rover’s route.

The rover’s wheels slipped more in Hidden Valley’s sand than the team had expected based on experience with one of the mission’s test rovers driven on sand dunes in California. The valley is about the length of a football field and does not offer any navigable exits other than at the northeastern and southwestern ends. “We need to gain a better understanding of the interaction between the wheels and Martian sand ripples, and Hidden Valley is not a good location for experimenting,” said Curiosity Project Manager Jim Erickson of JPL. …

Curiosity reversed course and drove out of Hidden Valley northeastward. On the way toward gaining a good viewpoint to assess a possible alternative route north of the valley, it passed over the pale paving stones on the ramp again. Where a rover wheel cracked one of the rocks, it exposed bright interior material, possibly from mineral veins.

More and more, the journey to Mount Sharp appears to be increasingly adventurous for the rover.

2 comments

Competition with SpaceX forced ULA CEO out

8:59 am

A news story today in Defense News speculates that the competitive pressure from SpaceX is what forced ULA’s CEO to step down.

Changes at the CEO level are usually accompanied by a change in how business is done, said Byron Callan, an analyst with Capital Alpha Partners. “Generally, when you see abrupt leadership changes, there’s an abrupt change of strategic or tactical course needed,” Callan said. “You don’t make those changes unless you see something that needs fast corrective action.”

Caceres said he expects to see layoffs and a streamlining of ULA to find all possible cost savings. “My sense is you’re going to see at ULA a restructuring of some sort, because ultimately they’re going to have to find a way to be a lot more competitive on price,” he said.

This restructuring is entirely the result of the new competition from SpaceX, as repeatedly noted by the article.

6 comments

Branson insists he will fly this year

8:54 am

In an interview for USA Today Richard Branson once again repeated his expectation that he will fly in space on SpaceShipTwo before the end of the year.

It sounds like they plan three test flights with their new engine, followed by Branson’s public relations stunt. Even if this plan happens, however, I do not see them ready to fly paying passengers, as they will probably need more test flights to make sure the ship and its engine are truly trustworthy.

2 comments

What private manned spaceship will NASA pick?

8:47 am

Speculation grows on the upcoming down-select decision by NASA of its manned commercial space program.

Next up is the announcement of the transition to the Commercial Crew Transportation Capability (CCtCap) contracts, to be announced later this month, or early in September, depending on political direction. Although the source selection process is obviously an internal debate, with its results embargoed until the time of the NASA announcement, it is hoped that two of the commercial crew providers will move forward with additional funding.

At the ASAP meeting, Ms. Lueders expressed “NASA’s desire to continue the partnerships even after the announcement, including with companies not selected.” That continued association may be in the form of unfunded Space Act Agreements (SAA), not unlike that which Blue Origin is currently working under, as it develops a crew capsule outside of the trio working with CCiCAP funding. “People are recognizing the value of competition and have an appreciation for shared knowledge,” added Ms. Lueders. “NASA has learned from the companies and the companies have learned from NASA. It would be a big plus to continue the relationships.”

As to which companies are likely to win through to the CCtCap phase, that is a tightly kept secret. However, over recent months, sources have noted NASA’s strong affection toward the multi-capable Dream Chaser, while SpaceX has a growing track record with its Falcon 9 and cargo-Dragon combinations via its Commercial Resupply Services (CRS) missions. [emphasis mine]

My sense in the last few months has also leaned heavily in favor of Dragon and Dream Chaser, both of whom appear to be moving forward with construction at a fast pace. Boeing meanwhile has instead made it seem that it wishes to invest as little capital in its project as possible, unless it wins the competition. While the first two companies have unveiled real hardware, Boeing continues to show us mostly mock-ups.

21 comments
1 … 755 756 757 758 759 … 1,119