NASA Readies Famous 'Chamber A' To Welcome The JWST | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Recent Daily Episodes

Episode Date

Airborne Unlimited-
Monday

Airborne-Unmanned w/AUVSI-
Tuesday

Airborne Unlimited-
Wednesday

AMA Drone Report-
Thursday

Airborne Unlimited-
Friday

Airborne On ANN

Airborne 11.13.17

Airborne-Unmanned 11.14.17

Airborne 11.15.17

AMA Drone Report 11.16.17

Airborne 11.17.17

Airborne-YouTube

Airborne 11.13.17

Airborne-Unmanned 11.14.17

Airborne 11.15.17

AMA Drone Report 11.16.17

Airborne 11.17.17

Sun, Jan 27, 2013

NASA Readies Famous 'Chamber A' To Welcome The JWST

James Webb Space Telescope To Be Tested In The Vacuum Chamber Used During The Apollo Program

NASA's "Chamber A" thermal vacuum testing chamber famous for being used during Apollo missions has now been upgraded and remodeled to accommodate testing the James Webb Space Telescope. When the next-generation space telescope was being designed, engineers had to ensure there was a place large enough to test it, considering it's as big as a tennis court. That honor has been bestowed on the famous "Chamber A" in the thermal-vacuum test facility at NASA's Johnson Space Center in Houston, TX.

Chamber A is now the largest high-vacuum, cryogenic-optical test chamber in the world, and made famous for testing the space capsules for NASA's Apollo mission, with and without the mission crew. It is 55 feet in diameter by 90 feet tall. The door weighs 40 tons and is opened and closed hydraulically.
 
For three years, NASA Johnson engineers have been building and remodeling the chamber interior for the temperature needed to test the Webb. Testing will confirm the telescope and science instrument systems will perform properly together in the cold temperatures of space. Additional test support equipment includes mass spectrometers, infrared cameras and television cameras so engineers can keep an eye on the Webb while it's being tested. "Some of the things we've done is upgraded our helium system, our liquid nitrogen system, and air flow management," said Virginia Rivas-Yancy, project manager, Air Flow Management System at NASA Johnson. Temperatures in Chamber A can now drop farther than ever -- down to -439.9 Fahrenheit (-262.1 Celsius or 11 degrees Kelvin) which is 11 degrees above absolute zero.
 
"The air in the chamber weighs 25 tons, about 12 1/2 Volkswagen Beetles; when all the air is removed the mass left inside will be the equivalent of half of a staple," said Ryan Grogan, Webb Telescope Chamber A project engineer at NASA Johnson.
 
A very large clean room is also being prepared near Chamber A where the observatory will be prepped for testing. The test itself will take 90 days. The first 30 days will consist of cooling the chamber down. The next few weeks will include tests on the Webb's operating systems, and the remainder of the time will be spent warming up the chamber to room temperature.
 
Test articles are normally inserted into the chamber by means of a precision mobile crane, but the Webb is so large, it will be folded up and wheeled in.

(Chamber "A" image provided by NASA)

FMI: www.nasa.gov

Advertisement

More News

Garmin Pilot Grows Feature Set For iOS And Android Mobile Devices

Multiple Features Added For Both Platforms Garmin has announced the addition of new features for the Garmin Pilot application for Android and iOS mobile devices. Garmin Pilot 6.2 f>[...]

AMA Drone Report 11.16.17: Drone Registration, Drone Journalists Jailed

Also: Terror Advisory, DRL Sim, SureFly Octocopter, Space Needle Drone Pilot, FAI-ASFC World Fly-In Expo A bill that includes a return to civilian drone registration has been inclu>[...]

Airborne-Unmanned 11.14.17: Drone Registration, AT&T's Flying COW, Pilot Charged

Also: Boeing Completes Acquisition, Drones For LAFD, DJI Seeks Transport Canada’s Help, Uber and NASA A defense authorization bill that includes a return to civilian drone re>[...]

Airborne 11.17.17: Cabri G2 Heli-Upgrade, NBAA/KSMO, USAF Pilot Shortage

Also: Electronic Flight Bags, SNC's Dream Chaser, flydubai Buys 225 737 MAX, Scottish Airshow Nixed The FAA has approved Service Bulletin 17-009 for the Guimbal Cabri G2 that allow>[...]

Airborne 11.15.17: XCOR BK, V-22 Osprey Milestone, GAMA 3rd Quarter Stats

Also: UK Airport Cancellation, Gone West: Robert Wagstaff, EASA Certifies Bell 505, USN's 1st MQ-4C Triton This is a heartbreaker, as we were big fans of XCOR Aerospace -- which fi>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2017 Web Development & Design by Pauli Systems, LC