Tag: engineering

Rider on the Storm

9:23 pm

Rider on the storm.

At approximately 6:00 pm, Lt Col Rankin concluded that his aircraft was unrecoverable and pulled hard on his eject handles. An explosive charge propelled him from the cockpit into the atmosphere with sufficient force to rip his left glove from his hand, scattering his canopy, pilot seat, and other plane-related debris into the sky. Bill Rankin had spent a fair amount of time skydiving in his career—both premeditated and otherwise—but this particular dive would be unlike any that he or any living person had experienced before.

Or since.

Leave a comment

Alan Boyle describes the details behind NASA’s decision to go with simpler contracting for future commercial rocket contracts

2:06 pm

Alan Boyle describes the details behind NASA’s decision to go with simpler contracting for future commercial rocket contracts.

If you read the article, you’ll notice that the opposition to this decision comes from a Congressman and the GAO. In both cases they cite safety as an issue, as is by some magic giving NASA a lot of bureaucratic approval rights on every design is going to make the rockets or capsules safer. All this will really do is slow things down, increase costs, and possibly increase risks as the companies will no longer have as many resources to focus on design issues. Instead, they will have to spend a fortune pleasing NASA bureaucrats.

And yes, I call them bureaucrats. Any NASA engineer who spends his or her time looking over the shoulder of another engineer — who is doing the real design work — is nothing more than a bureaucrat. Better to quit NASA and get a job with one of these new companies where you can do some real work.

2 comments

NASA has decided to stick with the same contracting arrangement it used for the COTS contracts

11:13 am

Good news: NASA has decided to stick with essentially the same contracting arrangement it used for the SpaceX and Orbital Sciences cargo deals to ISS in its future commercial crew and cargo contracts.

This suggests that the NASA bureaucracy, which had wanted more control of the new commercial companies by using a more restrictive contract arrangement, has lost. However, we don’t yet have the details on how the new contracts will be administrated, and as always, the devil is in the details.

Leave a comment

Rutan, Allen, Musk, Griffin team up to develop an air-launch rocket system to fire hardware and humans into orbit.

12:30 pm

Superstars of space: Rutan, Allen, Musk, and Griffin have teamed up to develop an air-launch rocket system to fire hardware and humans into orbit.

Their concept calls for Rutan, a noted aircraft designer, to create a carrier jet with a 385-foot wingspan and six engines to ferry a liquid-fueled, 120-foot-long rocket built by SpaceX and outfitted with five main engines to altitude where the winged booster will be released for launch into orbit.

3 comments

Southwest orders 208 Boeing 737s valued at $19 billion

9:49 am

Some good news: Southwest Airlines has ordered 208 of Boeing’s 737, a deal valued at $19 billion. Plus this:

Last month, Boeing said Indonesia’s Lion Air committed to pay $21.7 billion for 230 Boeing 737s. Lion Air also has options for 150 more planes, valued at $14 billion, bringing the deal’s total potential value to $35 billion. But the Lion Air deal is not a certainty; it still has to complete the order. Also in November, Emirates Airlines ordered $18 billion worth of 777s.

Maybe Boeing should pump some of those profits into building the CST-100 manned space capsule and thus win more profits in the space tourism industry.

Leave a comment

Orbital Sciences has renamed its Taurus II rocket the Antares rocket

2:49 pm

Orbital Sciences has renamed its Taurus II rocket the Antares rocket.

To clear up any marketplace confusion and provide clear differentiation between this new launch vehicle and our Taurus XL rocket. Antares is significantly different – it serves the medium-class space launch market and its liquid fuel first stage technology is major departure from previous Orbital space launch vehicles. In addition, a project of this scale and significance deserves its own name like Orbital’s Pegasus®, Taurus® and Minotaur rocket programs that have come before it.

I think they have also realized they needed to distinguish Antares from the Taurus XL rocket’s recent problems, failing twice to put NASA climate satellites into orbit.

Leave a comment

LightSquared actually disrupted 75% of the GPS receivers used during government testing

9:14 am

Actually, those tests weren’t so good after all: LightSquared’s broadband system actually disrupted 75% of the GPS receivers used during government testing.

Morrissey also notes these disturbing facts, considering the Obama administration’s strong support for Lightsquared:

  • The CEO of LightSquared has been a big Democratic Party contributor.
  • Barack Obama was an early investor in LightSquared.
  • The Obama administration has put pressure on military officials to change their opposition to Lightsquared.
Leave a comment

LightSquared touts new tests prove its internet service will not interfere with GPS

10:10 pm

In a press event today, LightSquared announced that just-completed tests prove that its internet service will not interfere with GPS.

According to the company, the three private companies — Javad GNSS, PCTel and Partron — that make GPS equipment have been testing interference solutions and those tests have gone well. “Preliminary results show that GPS devices tested in the lab easily surpass performance standards thanks to these newly developed solutions,” Ahuja said. “We are confident that this independent testing will mirror testing being done by the federal government.”

Here’s another perspective:

Jim Kirkland, vice president of Trimble and a founding member of The Coalition to Save Our GPS, is trying to slow LightSquared’s momentum. “It is obviously extremely premature to claim at this point that these latest tests demonstrate that LightSquared’s proposed repurposing of the mobile satellite band for terrestrial operations is ‘compatible’ with high-precision GPS,” Kirkland says in a statement. “Even if new equipment solutions are fully tested and verified, these existing high-precision receivers will have to be retrofitted or replaced. LightSquared still refuses to accept the financial responsibility for addressing interference to existing devices, and so has not offered a comprehensive solution in any way, shape, or form.”

Leave a comment

An experiment designed to mimic the dynamo at the Earth’s core is about to be turned on.

8:43 am

Mad scientists at their best! An experiment designed to mimic the dynamo at the Earth’s core is about to be turned on.

Ten years in the making, the US$2-million project is nearly ready for its inaugural run. Early next year, the sphere will begin whirling around while loaded with 13,000 kilograms of molten sodium heated to around 105 °C. Researchers hope that the churning, electrically conducting fluid will generate a self-sustaining electromagnetic field that can be poked, prodded and coaxed for clues about Earth’s dynamo, which is generated by the movement of liquid iron in the outer core. If it works, it will be the first time that an experiment that mirrors the configuration of Earth’s interior has managed to recreate such a phenomenon.

This is a really very cool experiment, as we really do not have a good understanding of how planetary magnetic fields are produced.

One comment
1 … 476 477 478 479 480 … 515