Tag: engineering

Sierra Nevada has successfully completed wind tunnel tests a several scale models of their winged spacecraft Dream Chaser.

8:38 am

The competition heats up: Sierra Nevada has successfully completed wind tunnel tests a several scale models of their winged spacecraft Dream Chaser.

It appears from these tests that the spacecraft’s design works better than expected during ascent and re-entry.

The article also gives a quick overview of the status of all three commercial companies, and from this it really looks to me as if Boeing is the least aggressive in pursuing its construction effort. This is merely an impression, and not to be taken too seriously, but it really does look like Boeing is playing the public relations game, doing as little work as possible while trying to garner the most publicity while waiting for the award of the contract.

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The first preliminary list of candidate landing sites for NASA’s next Mars rover have been proposed.

9:59 am

The first preliminary list of candidate landing sites for NASA’s next Mars rover have been proposed.

At the conclusion of the workshop, attendees voted informally on the nearly 30 candidate sites that researchers had presented—ranking the sites as being of high, medium, or low scientific interest. Floating to the top was a site called Northeast Syrtis Major, a terrain at the edge of the Isidis Basin, the remnant of one of Mars’s biggest and most ancient asteroid impacts. Jack Mustard, a planetary scientist at Brown University and an advocate for the site, says material from the impact could offer a precise date for that event. Scientists also want a piece of nearby lava flows, thought to have oozed out and cooled several hundred million years later.

Nothing is even close to being decided yet, however.

In related news, a new study suggests that dozens of microbes might have stowed away on Curiosity when it left for Mars.

Emphasis must be placed on the word “suggests” however.

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The launch failure Thursday of a Russian Proton rocket is putting the squeeze on the commercial satellite industry.

9:45 am

The competition heats up: The launch failure Thursday of a Russian Proton rocket is putting the squeeze on the commercial satellite industry.

Periodically I am told by launch industry experts that the launch industry doesn’t have sufficient demand or capacity for more launch companies. It was this logic, for example, that prompted Boeing and Lockheed Martin to combine into ULA and do a bulk buy with the Air Force. Otherwise, they claimed, they didn’t have enough business to compete with each other and stay in business.

This article above puts the lie to these claims. Not only is there plenty of demand, companies like SpaceX would probably up their fees if they wanted to because the supply does not even come close to meeting the demand. In fact, satellite companies want to get their satellites into orbit and can’t because of a shortage of launch services.

This shortage is an opportunity, not only for the companies that exist but for any new companies trying to get started, such as Stratolaunch. Rather than sit on their hands, as have Boeing and Lockheed Martin, an ambitious and competitive effort here could win market share and make lots of money.

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Virgin Galactic pretty much admits that SpaceShipTwo will fly to only fifty miles altitude, not 62 (100 kilometers).

9:30 am

Virgin Galactic pretty much admits that SpaceShipTwo will fly to only fifty miles altitude, not 62 (100 kilometers).

The admission came in response to the rumors that say the spacecraft will even have trouble reach 50 miles.

Though the company is making a hard PR effort to dispel the negative rumors that are swirling about in the press, the only way they will really succeed at this is to begin actual test flights, something that has not happened, as they have promised repeatedly since the first powered flight last year.

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The assembly of Boeing’s CST-100 manned spacecraft is expected to begin soon.

9:25 am

The competition heats up: The assembly of Boeing’s CST-100 manned spacecraft is expected to begin soon.

Boeing takes over the OPF-3 lease in late June 2014 following an official handover ceremony from Space Florida. Assembly begins soon thereafter. … “The pieces are coming one by one from all over the country,” Ferguson explained. “Parts from our vendors are already starting to show up for our test article. “Assembly of the test article in Florida starts soon.”

Granted, Boeing’s lease for its assembly space at Kennedy has not yet started, but the vagueness of the assembly start date is a bit curious, and suggests that Boeing won’t begin assembly until they know they have won the contract from NASA, the announcement of which is presently scheduled for late summer 2014.

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The Air Force has hired the Aerospace Corporation to evaluate how long it will take to replace the Russian engine used by the Atlas 5 rocket.

9:16 am

Government dithering: The Air Force has hired the Aerospace Corporation to evaluate how long it will take to replace the Russian engine used by the Atlas 5 rocket.

“I see numbers all over the map,” [Ray Johnson, vice president at Aerospace] said May 14 during the World Space Risk Forum here. “Some people say they could do it in five years. Others estimate it’s going to be longer than that, and that it could be eight.” Aerospace Corp. work evaluating what it would take to develop a hydrocarbon engine to replace the RD-180 — if U.S.-Russia relations sour to the point where the engine is no longer available or wanted — “is literally just a few weeks old,” Johnson said.

Time is critical on this issue. It seems to me a better thing to do would be to immediately issue of Request for Proposals, which would quickly tell the Air Force what the American aerospace industry has to offer. They could then proceed right to construction, rather than studying the issue endlessly beforehand.

Moreover, why isn’t Lockheed Martin doing something about this? It is their rocket that is dependent on the Russians. Why is it the Air Force’s responsibility to save them?

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Want to fly into space? All you have to do is “build the future” and win the Hackaday Prize.

4:32 pm

Want to fly into space? All you have to do is “build the future” and win the Hackaday Prize.

You’re probably wondering what you’re actually supposed to build? We’ve been vague up to this point on purpose, because spouting specific categorization stifles creativity. We want you to Build the Future — not fit inside of a tiny box made of disqualifying restraints. … The only requirements you really have to hit are quite simple:

  • You must actually build something
  • It must involve some type of electronics that are connected to something
  • Our main requirements have to do with documentation. This includes lists of parts, schematics, images, and videos. Remember, Openness is a Virtue.

The winner gets just under $200K to buy a ticket on the commercial space carrier of their choice. Or they can cash it in. Numerous additional prizes will also be awarded.

Hat tip to commenter Eric who says he has entered, is not building a rocket engine “that seems to be in demand all of a sudden,” but is building something that is “out there” nonetheless.

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After concluding eight years of science observations in orbit around Venus, Venus Express is about to begin a series of atmospheric plunges to test the engineering of aerobraking at the extreme.

11:28 am

After concluding eight years of science observations in orbit around Venus, Venus Express is about to begin a series of atmospheric plunges to test the engineering of aerobraking at the extreme.

They plan to dive into Venus’s hellish atmosphere as low as 80 miles, where they hope not only to get data about this little studied region but to also learn more about the engineering of aerobraking. The article also gives a nice overview of the knowledge that Venus Express gathered in the past eight years.

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Want to watch some astronomers blow up the top of a mountain? You can!

11:14 am

Want to watch some astronomers blow up the top of a mountain? You can!

Seriously, construction crews will in June begin blasting to prepare this mountain top in Chile for the European Extremely Large Telescope (E-ELT), a gigantic optical telescope that will have a primary mirror 39 meters or 128 feet across and is scheduled for completion sometime in the next decade. To mark the event they will be providing a live stream for everyone worldwide to watch.

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