backtop


Print 55 comment(s) - last by mmatis.. on Dec 4 at 8:49 AM


Orion capsule  (Source: space.com)
The good news is that the hardware can be fixed without having to be remanufactured

According to NASA, the deep-space Orion crew capsule underwent pressure testing at the Kennedy Space Center in Florida the week of November 5. After the testing, which subjected the capsule to more stress than it is expected to experience during its scheduled use, NASA found a few cracks. 

The cracks were located in three adjacent radial ribs of the aluminum bulkhead. It occurred at a pressure of 149 kilopascals. To pass the test, the Orion would have had to reach 164 kilopascals without cracking. 

The good news is that the hardware can be fixed without having to be remanufactured. However, NASA wants to figure out exactly why this happened, so it will use an electron microscope to scan the damage. 

Lockheed Martin Space Systems is the maker of the Orion, and will perform the testing necessary to investigate what happened. It took about one year to build the space capsule. 

The Orion was set to launch in 2014 in a flight called Exploration Flight Test-1 (EFT-1), where an unmanned Orion will launch into orbit and reenter the atmosphere at 32,000 kilometers per hour. It's unclear whether this flight will now be delayed due to the damage. 

The Orion capsule will eventually take astronauts into deep space to locations like asteroids and Mars. It will be the most advanced spacecraft ever, with the ability to provide safe re-entry from deep space, a way to sustain astronauts in space, and an emergency abort option. The Orion spacecraft was first unveiled by Lockheed Martin in early 2011.

Just this past July, NASA brought the Orion capsule to the Kennedy Space Center to begin testing. 

If all goes well with EFT-1, the Orion capsule will take astronauts beyond low-Earth orbit via the new Space Launch System (SLS)which is NASA's latest heavy lift vehicle that will also be used as the backup for international and commercial partner transportation to the International Space Station (ISS).

The Orion capsule is set to launch atop the SLS in 2017. The Orion is set to be the main mode of deep space transportation for about 30 years.

Source: MSNBC



Comments     Threshold


This article is over a month old, voting and posting comments is disabled

RE: Incorrect Conversion
By Solandri on 11/28/2012 2:26:08 PM , Rating: 2
Yeah, a spacecraft only has to withstand 1 atmosphere to remain intact in space. The excess is just safety margin (standard engineering safety margin in aerospace for vehicles occupied by people is 1.5x). If you use a pure oxygen atmosphere, it's even lower (about 0.2 atmospheres).

The "walls" of the Apollo lunar lander were only 3mm thick. You could poke a hole through it with a screwdriver.


RE: Incorrect Conversion
By FITCamaro on 11/29/2012 7:04:41 AM , Rating: 2
Weren't they in space suits the whole time though while in it?


RE: Incorrect Conversion
By gamerk2 on 11/29/2012 9:47:11 AM , Rating: 2
During normal flight, the tunnel between the CM and LM was open, and the astronauts not suited.


RE: Incorrect Conversion
By delphinus100 on 12/1/2012 1:22:35 PM , Rating: 2
Indeed, during Apollo 13, the crew spent most of the return time in the LM, because the Command Module was too cold...


"I mean, if you wanna break down someone's door, why don't you start with AT&T, for God sakes? They make your amazing phone unusable as a phone!" -- Jon Stewart on Apple and the iPhone














botimage
Copyright 2014 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki