Tag: spaceflight

Read the full transcript of Tuesday’s briefing in Russia on the subject of the U.S./Russian cooperation in space.

8:39 am

Read the full transcript of Tuesday’s briefing in Russia on the subject of the U.S./Russian cooperation in space.

It is very worthwhile reading the entire thing. The text makes it very clear that Russia is not kicking us out of ISS, as has been wrongly reported by several news agencies. It also makes clear that the Russians consider the Obama administration’s actions childish, thoughtless, and unproductive. They also emphasize how the U.S. government is generally an “unreliable” partner in these matters, something that I have noted before when our government has broken space agreements with Europe.

The text also clarifies the GPS situation. The stations we have in Russia are in connection with scientific research, something they wish to do also in the U.S. If an agreement isn’t reached, that research will cease. Actual use of GPS for navigational purposes will not be effected.

Side note: NASA says that they have not yet received any official notice from Russia concerning the briefing above. This might be because Rogozin’s briefing was meant merely as a shot across the bow, or it could be that the Russians have not yet gotten around to doing it. We shall see.

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On Tuesday Virgin Galactic rolled WhiteKnightTwo out of its hanger “as part of a gearing up process.”.

8:23 am

Is it cracked or not? On Tuesday Virgin Galactic rolled WhiteKnightTwo out of its hanger “as part of a gearing up process.”.

Though the above article is very vague about what is being done, this article explains that they are doing taxi tests of new landing gear. The timing, however, makes me suspect that this is also a public relations ploy to counter yesterday’s reports about cracks in the vehicle’s wings.

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NASA has chosen the four shuttle engines that will be used to launch SLS on its first mission in 2021.

10:26 am

What a waste: NASA has chosen the four shuttle engines that will be used to launch SLS on its first mission in 2021.

All four engines were used multiple times on many shuttle missions. They will fly once on SLS, at a cost of many billions, and then end up destroyed when that giant rocket’s first stage falls into the ocean. Worse, no one has really defined what the goal of that first launch will be. It might merely be a test launch, with no humans on board.

To me, it would be wiser to put the engines into storage and wait until we have a new reusable capability that could take advantage of the reusable engineering of these engines. Throwing them away on a pork-barrel boondoggle like SLS seems so stupid.

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Russia fights back

9:50 am

Much has been made about the sanctions the Obama administration has imposed on any cooperation with Russia due to the situation in Ukraine and how those sanctions might damage the commercial and manned space efforts of the United States.

So far, all evidence has suggested that the sanctions have little teeth. The Obama administration exempted ISS from the sanctions. It also appears to be allowing the shipment of all commercial satellites to Russia for launch. Even a court injunction against using Russia rocket engines in U.S. military launches was lifted when the Obama administration asked the judge to do so.

The Russians now have responded. Why do I take their response more seriously?
» Read more

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A news story today reports that cracks have been discovered in the wings of WhiteKnightTwo.

8:27 am

More problems for Virgin Galactic: A news story today reports that cracks have been discovered in the wings of WhiteKnightTwo.

Sources tell me the cracks are along the spars that run the length of the wings. Specifically, they are located where the spars connect with the fuselage. My sources tell me the cracks have caused quite a bit of concern among the engineers at Virgin and Scaled. One particularly worrisome aspect is that nobody knows why or when they occurred.

I’m told there is some comfort in the repairs being made based on previous Scaled experience in patching composites. However, since the cause of the cracks is uncertain and WhiteKnightTwo is unique in terms of its size and the stresses placed on it by SpaceShipTwo, the engineers are in uncharted territory. They don’t know if they have addressed the root cause, or whether the problem will reoccur.

If this story turns out to be trie, it will likely be a disaster for Virgin Galactic. Not only can they not yet fly SpaceShipTwo because of engine issues, the mother ship that puts the spacecraft into the air can’t fly either.

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Does the auction sale of an Excalibur Almaz capsule signal the end of this manned space commercial company?

9:23 am

Does the auction sale of an Excalibur Almaz capsule signal the end of this manned space commercial company?

It certainly looks that way, which is tragic in that the company had a very smart and viable idea: Use already built Soviet-era manned space equipment to launch a space hotel and provide a ferry to it for a relatively low cost. The development was already done and the hardware already built. All they had to do is refurbish and update things.

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Ground tests of SpaceShipTwo’s engines continue.

9:20 am

Ground tests of SpaceShipTwo’s engines continue.

No flight tests have occurred in four months, however, which suggests that they have decided to abandon their first engine design and are now doing these new ground tests to prove the reliability of the new engine before proceeding to flight tests. The lack of flight tests also suggests that Richard Branson’s most recent announcement that he will definitely fly as a passenger this year is most likely hogwash.

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The trip of what is essentially a circuit breaker on ISS has reduced the station’s power by about 12.5%.

9:02 am

The trip of what is essentially a circuit breaker on ISS has reduced the station’s power by about 12.5%.

The cause and solution has not yet been isolated. The loss of power at this point is not critical, and has not effected any experiments or the safety of the crew.

The article itself gives a very detailed and informative outline of the system and what has happened, though you have to spend the time to wade through the alphabet soup of NASA terminology — SSU, SAWs, VDC, DCSUs, MBSUs, DDCUs, POR — that NASA uses.

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Building a scale model of the International Space Station — using matchsticks!

9:12 am

Building a scale model of the International Space Station — using matchsticks!

Recently completed by Acton, the wooden ISS is as impressive in size as it is in detail. Comprised of 282,000 matchsticks, the 1/26 scale model required 8 gal (30 L) of glue and took roughly 1,950 hours to complete. Whereas the actual ISS measures out at 108.5 m (356 ft) wide and 72.8 m (239 ft) long, Acton’s scaled down version measures out at an impressive 4.1 m (13.5 ft) and 2.8 m (9.2 ft) wide. Solar arrays, trusses, communication components, and even the Space Shuttle Atlantis, are all there in intricate detail.

With pictures.

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In response to the Obama administration’s request a judge has lifted her injunction against the purchase of Russian rocket engines for the Atlas 5 rocket.

7:27 pm

In response to the Obama administration’s request a judge has lifted her injunction against the purchase of Russian rocket engines for the Atlas 5 rocket.

More here. It appears that, at least for the moment, the Atlas 5 rocket will be allowed to buy these engines. Whether the Russians will continue to allow them to buy them however remains an open question, especially if things in the Ukraine get worse.

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How to turn an American spacecraft ferrying astronauts to ISS serve as a lifeboat as well.

9:07 am

How to turn an American spacecraft ferrying astronauts to ISS serve as a lifeboat as well.

A very interesting read, as it outlines the specific technical problems faced by engineers that one wouldn’t normally consider. The capsule has to be able to remain functional and reliable after months in orbit, but it also has to become functional at a moment’s notice, should an emergency happen.

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SpaceX continues to acquire land in Texas for its planned spaceport in Brownsville.

8:40 am

The competition heats up: SpaceX continues to acquire land in Texas for its planned spaceport in Brownsville.

Elon Musk’s Dogleg Park LLC picked up an additional five lots in late April, bringing the total number of lots it has acquired in Cameron County to 95. The total land area that SpaceX now owns is roughly 38 acres of land, public records show. This is in addition to 56.5 acres that SpaceX has under lease at the site of what would be the world’s first private and commercial vertical launch site.

Compared to the acquisitions made by the federal government when it established its space centers in Florida and Wallops Island, these purchases are small. Nonetheless, they are likely sufficient for what the company plans to do.

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SpaceX releases spectacular footage of another vertical take-off and landing test of their Falcon 9R rocket.

8:33 am

The competition heats up: SpaceX releases spectacular footage of another vertical take-off and landing test of their Falcon 9R rocket, this time flying over 3,000 feet in the air.

Video below the fold. What I think everyone, including me, has missed so far about both the Grasshopper and the Falcon 9R test flights is that the test vehicle not only was able to land safely using its rockets, both vehicles were quickly turned around and flown again. This certainly lends weight to the feasibility of the company’s plan to make their first stage reusable.

» Read more

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The porksters arrive!

9:01 am

A draft bill in Congress is proposing the Pentagon develop an engine for the Atlas 5 engine to replace the Russian engine now used.

The legislation passed by a House subcommittee Wednesday calls for up the U.S. military to spend up to $220 million next year to kick off full-scale development of the engine, which could be ready for flights no later than 2019. The bill states the Defense Department “should develop a next-generation liquid rocket engine that is made in the United States, meets the requirements of the national security space community, is developed by not later than 2019, is developed using full and open competition, and is available for purchase by all space launch providers of the United States.”

There is no reason for this funding gift to the aerospace industry. For one thing, there are two rockets that already exist that use all U.S. parts, the Delta family of rockets and the Falcon 9. For another, if Congress stays out, the private sector will take care of this need and do it for a lot less and far quicker, while costing the taxpayers relatively little. By making this a government project we guarantee it will be expensive and take forever, thus keeping the pork flowing to Congressional districts without solving the problem.

And speaking of keeping pork flowing to Congressional districts, pork king Senator Richard Shelby (R-Alabama) today ripped into NASA for trying to trim a little from the budget of SLS (which sends a lot of cash to Alabama). He also condemned NASA’s manned commercial effort.
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