Tag: engineering

The cost of launch

5:57 pm

Two news items from NASA today:

What I find most interesting about these stories is the fees charged by the two companies. SpaceX will be paid $82 million for its one launch, while ULA will be paid $412 million for its three launches, or about $137 million per launch.
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ESA is revamping how it builds rockets in order to compete with SpaceX.

11:28 pm

The competition heats up: ESA is revamping how it builds rockets in order to compete with SpaceX.

ESA officials have been spooked by Space Exploration Technologies Corp. (SpaceX) of Hawthorne, Calif., which has demonstrated its technical prowess with the launch of its Falcon 9 rocket and Dragon cargo vehicle to the international space station. SpaceX officials say one of the keys to its success is that Falcon 9 is built in one factory owned by SpaceX.

Read the whole thing. The way ESA builds the Ariane rocket requires too many participants (what we in the U.S. call pork), raising its cost. ESA is now abandoning that approach to cut costs and thus compete with SpaceX.

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Bad training of the astronauts led to the failure of the student experiments recently on ISS.

11:25 pm

Bad training of the ISS astronauts by the company supplying the experiments was the reason the student experiments were never turned on.

“Previous crews were given on the ground review and personal interaction prior to launch,” Manber said. “For this mission, the astronaut received hardware training solely via video while on the space station. Clearly, there was a miscommunication resulting from the video instruction.”

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An new material has claimed the record as the world’s lightest solid.

5:41 pm

An new material has claimed the record as the world’s lightest solid.

Developed by a team from the Technical University of Hamburg and Germany’s University of Kiel, the material is composed of 99.99 percent air, along with a three-dimensional network of porous carbon nanotubes that were grown into each other. Aerographite has a density of less than 0.2 milligrams per cubic centimeter, which allows it be compressed by a factor of 1,000, then subsequently spring back to its original state. Despite its extremely low density, it is black and optically-opaque in appearance. By contrast, the density of metallic microlattice sits at 0.9 mg per cubic centimeter.

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The Virginia spaceport at Wallops Island is on schedule to hand control of its launchpad sometime this month so that Orbital Sciences can begin ground tests of its Antares rocket.

5:14 pm

The Virginia spaceport at Wallops Island is on schedule later this month to hand control of its launchpad over to Orbital Sciences so it can begin ground tests of its Antares rocket.

The irony of this press release story is that Orbital has actually been running things, as it took over prepping the launchpad last year when the spaceport was unable to handle it.

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From Virgin Galactic come two announcements today

8:59 am

The competition heats up: From Virgin Galactic come two announcements today:

The second is really the big news, especially as it appears they already have some customers.

LauncherOne will be a two-stage vehicle capable of carrying up to 500 pounds (225 kilograms) to orbit for prices below $10 million. The rocket will be launched from Virgin Galactic’s proven WhiteKnightTwo, the uniquely capable aircraft also designed to carry SpaceShipTwo aloft to begin her suborbital missions. Thanks to the extreme flexibility of air launch, Virgin Galactic’s customers will enjoy reduced infrastructure costs in addition to the wide range of possible launch locations tailored to individual mission requirements and weather conditions. Branson and other senior executives announced that work has already begun on the vehicle.

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A student experiment that was successfully flown up and down to ISS by Dragon is apparently a failure because no one on ISS ever turned it on.

8:46 am

A student experiment — successfully flown up and down to ISS by Dragon — is apparently a failure because no one on ISS ever turned it on.

Per instructions from NanoRacks, the Houston company that works with NASA to integrate such deliveries, Warren packed his worms, or C. elegans, into a glass ampule, or tube, then packed that tube into a larger one containing a liquid “growth medium” for the worms. An astronaut aboard the space station was to crack the outer ampule in a way that would release the worms into the surrounding liquid. It never happened.

The article is very diplomatic about this, but it is very clear that either the astronauts on ISS screwed up, or NASA did by not giving them clear instructions.

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A European Space Agency (ESA) working group has recommended the agency focus its next manned space project on redesigning its now abandoned ATV cargo ship as a service module for the U.S.’s Orion capsule.

9:14 am

Birds of a feather: A European Space Agency (ESA) working group has recommended the agency focus its next manned space project on redesigning its now abandoned ATV cargo ship as a service module for the U.S.’s Orion capsule.

Believe it or not, this is how ESA plans to pay for its use of ISS from 2017 to 2020, by abandoning the ATV (which supplies ISS) and building a service module for a capsule that might never launch and is not intended to go to ISS anyway.

But then, it isn’t surprising, coming from a government agency.

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ATK’s push to build its Liberty launch system.

9:17 am

The competition heats up: ATK’s push to build its Liberty launch system.

Liberty was one of the suitors [for NASA’s commercial crew] funding, before losing out to the four aforementioned options during the selection process. However, ATK decided to press on with the development of the system under an unfunded Space Act Agreement (SAA), with a clear intent of convincing NASA they deserve to be awarded funding for the path towards crewed launches.

Indeed, ATK have stated that they will continue with the development of Liberty regardless of NASA funding, as much as Agency support would provide an accelerated schedule towards bringing the vehicle into operation by 2015. [emphasis mine]

If you read the article, you will see that there are many reasons why I would rather NASA did not pick ATK. The system depends too much on the shuttle’s legacy at the Kennedy Space Center (the VAB, crawler, etc), which means it will probably require a large labor force to launch and thus be expensive. However, if ATK can make Liberty profitable without NASA, I am all for them.

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