Space

June 2, 2014

NASA’s ‘flying saucer’ readies for first test flight

NASA’s flying saucer-shaped test vehicle is ready to take to the skies from the U.S. Navy’s Pacific Missile Range Facility in Kauai, Hawaii, for its first engineering shakeout flight.

The first launch opportunity for the test vehicle is June 3, when the launch window opens at 8:30 a.m., HST. The test will be carried live on NASA TV and streamed on the Web. The Low Density Supersonic Decelerator will gather data about landing heavy payloads on Mars and other planetary surfaces.

“The agency is moving forward and getting ready for Mars as part of NASA’s Evolvable Mars campaign,” said Michael Gazarik, associate administrator for Space Technology at NASA Headquarters in Washington. “We fly, we learn, we fly again. We have two more vehicles in the works for next year.”

As NASA plans increasingly ambitious robotic missions to Mars, laying the groundwork for even more complex human science expeditions to come, accommodating extended stays for explorers on the Martian surface will require larger and heavier spacecraft.

The objective of the LDSD project is to see if the cutting-edge, rocket-powered test vehicle operates as it was designed – in near-space at high Mach numbers.

“After years of imagination, engineering and hard work, we soon will get to see our Keiki o ka honua, our ‘boy from Earth,’ show us its stuff,” said Mark Adler, project manager for the Low Density Supersonic Decelerator at NASA’s Jet Propulsion Laboratory in Pasadena, Calif. “The success of this experimental test flight will be measured by the success of the test vehicle to launch and fly its flight profile as advertised. If our flying saucer hits its speed and altitude targets, it will be a great day.”

The way NASA’s saucer climbs to test altitude is almost as distinctive as the test vehicle itself.

“We use a helium balloon – that, when fully inflated, would fit snugly into Pasadena’s Rose Bowl – to lift our vehicle to 120,000 feet,” said Adler. “From there we drop it for about one and a half seconds. After that, it’s all about going higher and faster – and then it’s about putting on the brakes.”

A fraction of a second after dropping from the balloon, and a few feet below it, four small rocket motors will fire to spin up and gyroscopically stabilize the saucer. A half second later, a Star 48B long-nozzle, solid-fueled rocket engine will kick in with 17,500 pounds of thrust, sending the test vehicle to the edge of the stratosphere.

“Our goal is to get to an altitude and velocity which simulates the kind of environment one of our vehicles would encounter when it would fly in the Martian atmosphere,” said Ian Clark, principal investigator of the LDSD project at JPL. “We top out at about 180,000 feet and Mach 4. Then, as we slow down to Mach 3.8, we deploy the first of two new atmospheric braking systems.”

The project management team decided also to fly the two supersonic decelerator technologies that will be thoroughly tested during two LDSD flight tests next year.

If this year’s test vehicle flies as expected, the LDSD team may get a treasure-trove of data on how the 6-meter supersonic inflatable aerodynamic decelerator and the supersonic parachute operate a full year ahead of schedule.

The SIAD-R, essentially an inflatable doughnut that increases the vehicle’s size and, as a result, its drag, is deployed at about Mach 3.8. It will quickly slow the vehicle to Mach 2.5 where the parachute, the largest supersonic parachute ever flown, first hits the supersonic flow. About 45 minutes later, the saucer is expected to make a controlled landing onto the Pacific Ocean off Hawaii.

NASA TV will carry live images and commentary of LDSD engineering test. The test vehicle itself carries several onboard cameras. It is expected that video of selected portions of the test, including the rocket-powered ascent, will be downlinked during the commentary. Websites streaming live video of the test include http://www.nasa.gov/nasatv and http://www.ustream.tv/nasajpl2.




All of this week's top headlines to your email every Friday.


 
 

 

Headlines November 21, 2014

News: Dempsey lays groundwork for larger 2016 defense budget - The top U.S. military official on Wednesday made the case for growing the base defense budget significantly over the $535 billion spending cap imposed by Congress for fiscal 2015.   Business: Boeing can bill $61 million that Pentagon withheld for months - The Pentagon withheld $60.5 million...
 
 

News Briefs November 21, 2014

Obama aide: U.S. should look at Ukraine military aid A senior aide of President Barack Obama says he believes the U.S. should consider giving Ukraine lethal, defensive military assistance to get Russia to think twice about its destabilizing behavior. Tony Blinken, the deputy national security adviser, cites serious violations by Russia of agreements not to...
 
 
Air Force photograph by SrA. Divine Cox

Kunsan AB hosts Exercise Max Thunder 14-2

Air Force photograph by SrA. Divine Cox A South Korean air force F-15 Strike Eagle lands Nov. 17, 2014, during Max Thunder 14-2 at Kunsan Air Base, South Korea. U.S. Air Force, Army, Marine Corps and Navy personnel and aircraft...
 

 
LM-facility

Lockheed Martin opens Surface Navy Innovation Center

Lockheed Martin has opened the Surface Navy Innovation Center in Moorestown, N.J., to support the development of new technologies for the U.S. Navy. The SNIC is a research, development and demonstration facility that brings tog...
 
 
raytheon-test

Raytheon successfully demonstrates integrated electronic warfare capabilities

EL SEGUNDO, Calif. – Raytheon, in collaboration with the U.S. Navy, successfully demonstrated an end to end, first of its kind, integrated electronic attack system during flight tests at the Naval Air Weapons Station Chi...
 
 

Three bases identified as F-16 aggressor candidate bases

U.S. Air Force photo by Tech. Sgt. Joseph Swafford Jr. A U.S. Air Force F-16 Fighting Falcon fighter aircraft assigned to the 18th Aggressor Squadron lands at Eielson Air Force Base, Alaska, Oct. 6 during RED FLAG-Alaska 15-1. RF-A is a series of Pacific Air Forces commander-directed field training exercises for U.S. and partner nation...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>