Tag: freedom

Private company proposes commercial airlock for ISS

10:01 am

The competion heats up: The private company NanoRacks has proposed building a large airlock for ISS which could be used to launch private cubesates while also allowing NASA to eliminate spacewalks by bringing faulty equipment inside for repairs.

For commercial opportunities, NanoRacks has a small satellite launcher, and it is also designing a “haybale” system to launch as many as 192 cubesats at a time. After the airlock is configured, it would be depressurized and sealed. Then a station robotic arm could grab it, move it away from the vehicle, and deploy its payloads.

NASA is also interested in the opportunity to potentially fix large, external components of the space station. Before the space shuttle’s retirement, NASA used the sizable delivery vehicle to stash dozens of replacement pumps, storage tanks, controller boxes, batteries, and other equipment on the station, known as ORUs. When one of these components broke, astronauts would conduct a spacewalk to install a replacement unit.

However sometimes the problem with a broken unit is relatively minor, such as a problematic circuit card. With a larger airlock, damaged components could be brought inside the station, assessed, and possibly fixed, saving NASA the expense of building and delivering a new unit to the station—or losing a valuable spare. Finally, the space agency could use the airlock to dispose of trash that accumulates on station and can be difficult to get rid of.

It is exactly this kind of technology, spurred by the lure of profits, that interplanetary spaceships need if they are going to be maintainable far from home.

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Two thoughtful endorsements of Ted Cruz

10:11 am

While cable television and the general media goes nuts of the childish feud between Donald Trump and Fox News, Ted Cruz today got two different endorsements that not only supported his nomination for president, but also outlined in detail two completely different reasons for supporting him.

The first, at the website Legal Insurrection, outlined Ted Cruz’s consistent and long term history as a trustworthy constitutional conservative. Not only does the article review Cruz’s history in the Senate, where he did whatever he could to fulfill his campaign promises (often prevented from doing so by his own Republican caucus), the article also looks at his background before becoming a senator. Its conclusion?

In short, Cruz has a long (dating back to his early teens) record of being a conservative in both principle and action.  He didn’t bound out of bed one day, put his finger to the wind, and decide to become a conservative (as was charged against Mitt Romney, among others); he’s always been a conservative. [emphasis in original]

Conservatives have been complaining for decades that they can’t get a reliable conservative nominated to run for president. With Cruz, we actually have that chance, and he will be running against the weakest Democratic candidate since George McGovern.

The second article outlines Cruz’s particular advantages for cleaning out the bureaucratic corruption in the Justice Department and elsewhere in the federal government.
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Air Force certifies Falcon 9 upgrade for military launches

6:35 pm

The competition heats up: The Air Force has approved use of SpaceX’s upgraded Falcon 9 rocket for use in military launches.

What this means is that SpaceX is increasingly considered an acceptable bidder for future military launch contracts. Moreover, it means that SpaceX will be able to use the Falcon 9 first stage that they are landing vertically, giving them more recoverable first stages for future flights.

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Blue Origin to increase New Shepard launch rate

6:32 pm

The competition heats up: Blue Origin expects to increase the rate of test flights for its New Shepard reusable rocket in 2016.

“We expect to shorten that turnaround time over time this year, and fly this vehicle again and again,” [Blue Origin President Rob Meyerson] said. Those upcoming tests will use the same New Shepard vehicle that flew the previous two flights, with hardware and software modifications as needed between flights. Meyerson said the company still plans to perform “dozens” of test flights of New Shepard over the next couple of years before the company is ready to carry people on the vehicle. “It really depends on how the flight test program goes,” he said. “It could be a little faster than that, or it could be a little longer than that, depending on what we learn.”

I expect that by the end of 2016, the U.S. will have two proven reusable first stage rockets and two operational orbital cargo spacecraft. And that doesn’t count the likely first demo flight of Falcon Heavy.

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Blue Origin reflies and lands New Shepard again

8:53 am

The competition heats up: Blue Origin yesterday successfully re-flew its New Shepard booster, vertically landing it for the second time.

Data from the November mission matched our preflight predictions closely, which made preparations for today’s re-flight relatively straightforward. The team replaced the crew capsule parachutes, replaced the pyro igniters, conducted functional and avionics checkouts, and made several software improvements, including a noteworthy one. Rather than the vehicle translating to land at the exact center of the pad, it now initially targets the center, but then sets down at a position of convenience on the pad, prioritizing vehicle attitude ahead of precise lateral positioning. It’s like a pilot lining up a plane with the centerline of the runway. If the plane is a few feet off center as you get close, you don’t swerve at the last minute to ensure hitting the exact mid-point. You just land a few feet left or right of the centerline. Our Monte Carlo sims of New Shepard landings show this new strategy increases margins, improving the vehicle’s ability to reject disturbances created by low-altitude winds.

They are not clear whether the capsule was re-flown as well. They do say they intend to re-fly New Shepard many times in 2016, probably at an increasing rate. If so, I would say that the race to be the first to sell suborbital tickets to tourists is won by Blue Origin, and that Virgin Galactic and XCOR have been left in the dust.

I have embedded the company’s video below the fold of yesterday’s flight.
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Europe kicks in money for Dream Chaser

2:54 pm

The competition heats up: NASA’s decision to award Sierra Nevada a cargo contract has triggered a $36 million investment by the European Space Agency (ESA) to build a new docking unit for Dream Chaser at ISS.

Sierra Nevada Corp.’s win of a NASA contract to ferry cargo to the International Space Station will trigger a $36 million investment by the 22-nation European Space Agency following a cooperation agreement to be signed in the coming weeks, ESA said. Once the agreement is signed, ESA will begin work building the first flight model of the International Berthing and Docking Mechanism (IBDM), which Sierra Nevada’s Dream Chaser Cargo System will use to attach itself to the space station.

ESA said it would spend 33 million euros ($36 million) to complete the design of the IBDM and build a flight model for Dream Chaser’s first cargo run. Future IBDMs will be financed by Sierra Nevada, ESA said.

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Video of Dragon/SuperDraco engine test

9:20 am

The competition heats up: SpaceX today released a video of a five second test they did in November of the SuperDraco thrusters attached to their Dragon capsule.

I have embedded the video below the fold. This test, which took place on a test stand with the capsule hanging from a crane cable, was part of their work to develop a launch abort capability for the manned version of Dragon. The thrusters will also be used eventually to make possible vertical land landings of the capsule.
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Howard Shore – The Shire (Concerning Hobbits)

6:01 pm

An evening pause: I am not a big fan of the movie adaptations of J.R.R. Tolkien’s The Hobbit and Lord of the Rings. I find them heavy and over-wrought, focused too much on special effects and what I call “cool adolescent stuff”, none of which has anything to do with the very real and human story that Tolkien created about the battle between good and evil.

This short piece from the music score, however, evokes everything about hobbits that Tolkien intended. As he has Gandalf say, in describing hobbits, “Soft as butter they can be, but sometimes as tough as old tree roots.”

And since hobbits and the Shire are nothing more than Tolkien’s metaphor for England and the British culture he knew from before World War II, this song also evokes the quiet majesty and humbleness of that now lost world, “a nation of shop-keepers” who, like the hobbits in the Lord of the Rings, were in the end able to stand firm and beat back the evil of the Third Reich despite overwhelming odds.

Hat tip Rocco.

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Tuesday’s Batchelor podcast

10:38 pm

Below the fold is the podcast of my appearance on the John Batchelor Show today, Tuesday. It was fun comparing the recent successes of private space compared to the big space programs of the U.S., Russia, and China. I also made reference to this essay I wrote after watching Elon Musk first announce in 2011 his plans to vertically land the first stage of his Falcon 9 rocket. Took him only five years to do it.
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