Tag: engineering

Sierra Nevada has announced that it plans to do additional test flights in 2014 of its prototype Dream Chaser engineering test vehicle

4:51 pm

Sierra Nevada has announced that it plans to do additional test flights in 2014 of its prototype Dream Chaser engineering test vehicle.

This is the same test vehicle that skidded off the runway during its first flight when one of its landing legs did not deploy. The company has never released any images of that smashup, but has said the craft was salvageable. I imagine this announcement is part of the continuing lobbying campaign by all the companies (SpaceX, Boeing, Sierra Nevada) competing in NASA’s commercial manned program. NASA is supposed to down select to two companies, maybe only one, by the end of the summer.

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The test of a new parachute system for Mars landing has been delayed until the end of June due to high winds.

4:47 pm

The test of a new parachute system for Mars landing has been delayed until the end of June due to high winds.

The space agency was forced to scrub six launch attempts over the past two weeks — the latest and last planned for this Saturday (June 14) — as a result of unusually poor wind conditions at the U.S. Navy’s Pacific Missile Range facility in Kauai, Hawaii. The balloon-launched Low-Density Supersonic Decelerator (LDSD) craft is intended to help NASA develop the means to land heavier spacecraft, and eventually humans, on Mars.

“All of the vehicle systems [and] our team were ready and prepared for all of the launch days; we were ready to go,” said Mark Adler, LDSD project manager at NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, California. “The only thing that held us up was that none of the launch dates had or will have acceptable weather conditions.”

They have literally run out of their available time at the range, and must let others play through first while they renegotiate for a new slot of time later.

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For half a billion dollars Google has purchased satellite company Skybox Imaging.

10:25 am

The competition heats up: For half a billion dollars Google has purchased satellite company Skybox Imaging.

Google plans to use Skybox’s satellites to make better maps with “up-to-date imagery,” the company said in a statement. “Over time, we also hope that Skybox’s team and technology will be able to help improve Internet access and disaster relief—areas Google has long been interested in.” Skybox has only a single satellite in orbit right now but plans to fly a fleet of them to cover the entire globe at all times. Constantly updated satellite images would be of interest to everyone from agricultural companies and hedge funds to hardware stores. A demonstration earlier this year showed how Skybox satellites could be used to monitor oil reserves from space.

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The investigation into the failure of a Proton launch several weeks ago has been completed.

10:18 am

The investigation into the failure of a Proton launch several weeks ago has been completed.

The May 16 crash of the Proton space rocket was due to a failed bearing in the steering engine’s turbo pump, the chief of the Russian space agency Roscosmos, Oleg Ostapenko, told ITAR-TASS. “The final version agrees with the preliminary findings made at the first stage of the inter-departmental probe. Telemetry and analytical information indicate that apparently a bearing in the turbo pump failed.

The information so far released is still a little vague in details. Whether the Russians will be more forthcoming is also not clear.

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Engineers have returned to full operation the x-ray instrument on the Swift gamma-ray burst space telescope.

11:58 pm

Engineers have returned to full operation the x-ray instrument on the Swift gamma-ray burst space telescope.

They are still investigating what went wrong this week, but have figured out how to get the instrument back in full automatic robotic mode so that it can gather x-ray data on gamma ray bursts within seconds of their occurence.

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Orbital Sciences has announced a further delay to July 1 for the next Antares/Cygnus cargo mission to ISS in order to complete its investigation into the failure of a Russian engine during testing.

8:57 am

Orbital Sciences has announced a further delay to July 1 for the next Antares/Cygnus cargo mission to ISS in order to complete its investigation into the failure of a Russian engine during testing.

The total delay is now about a month. The press release provides no information as to the status of the investigation, so why it is taking longer than originally expected is unexplained.

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Mojave Spaceport temporarily evacuated due to a small scrap metal fire.

8:58 am

Mojave Spaceport temporarily evacuated due to a small scrap metal fire.

The official statement can be read here. As noted by Doug Messier,

There’s a question of why scrap material (or any other flammable material) was anywhere near a tank full of nitrous oxide. In consulting with one expert who uses nitrous oxide, I was told that a blast could have possibly damaged everything within 1,000 feet. That’s basically two complete football fields with end zones plus another 93 yards. There are a lot of irreplaceable people and technologies within 1,000 feet of where that fire took place.

Then again, a fire can occur almost anywhere, and it is often impossible to keep it away from flammable materials.

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