Make text bigger  Make text smaller  Toggle background color  Bookmark/Share

NASA Launches An Inflatable Heat Shield

irve

NASA Langley engineers check out the Inflatable Re-entry Vehicle Experiment (IRVE) in the lab.

A successful NASA flight test Monday demonstrated how a spacecraft returning to Earth can use an inflatable heat shield to slow and protect itself as it enters the atmosphere at hypersonic speeds.

The Inflatable Re-entry Vehicle Experiment, or IRVE, was vacuum-packed into a 15-inch diameter payload “shroud” and launched on a small sounding rocket from NASA’s Wallops Flight Facility on Wallops Island, Va., at 8:52 a.m. EDT. The 10-foot diameter heat shield, made of several layers of silicone-coated industrial fabric, inflated with nitrogen to a mushroom shape in space several minutes after liftoff.

The Black Brant 9 rocket took approximately four minutes to lift the experiment to an altitude of 131 miles. Less than a minute later it was released from its cover and started inflating on schedule at 124 miles up. The inflation of the shield took less than 90 seconds.

“Our inflation system, which is essentially a glorified scuba tank, worked flawlessly and so did the flexible aeroshell,” said Neil Cheatwood, IRVE principal investigator and chief scientist for the Hypersonics Project at NASA’s Langley Research Center in Hampton, Va. “We’re really excited today because this is the first time anyone has successfully flown an inflatable reentry vehicle.”

According to the cameras and sensors on board, the heat shield expanded to its full size and went into a high-speed free fall. The key focus of the research came about six and a half minutes into the flight, at an altitude of about 50 miles, when the aeroshell re-entered Earth’s atmosphere and experienced its peak heating and pressure measurements for a period of about 30 seconds.

An on board telemetry system captured data from instruments during the test and broadcast the information to engineers on the ground in real time. The technology demonstrator splashed down and sank in the Atlantic Ocean about 90 miles east of Virginia’s Wallops Island.

“This was a small-scale demonstrator,” said Mary Beth Wusk, IRVE project manager, based at Langley. “Now that we’ve proven the concept, we’d like to build more advanced aeroshells capable of handling higher heat rates.”

Inflatable heat shields hold promise for future planetary missions, according to researchers. To land more mass on Mars at higher surface elevations, for instance, mission planners need to maximize the drag area of the entry system. The larger the diameter of the aeroshell, the bigger the payload can be.

The Inflatable Re-entry Vehicle Experiment is an example of how NASA is using its aeronautics expertise to support the development of future spacecraft. The Fundamental Aeronautics Program within NASA’s Aeronautics Research Mission Directorate in Washington funded the flight experiment as part of its hypersonic research effort.


Bolden and Garver Visit NASA Langley

bolden-lrc

(Above) NASA Administrator Charles Bolden arrives at Langley and greets Center Director Lesa B. Roe.

NASA Administrator Charles Bolden and Deputy Administrator Lori Garver addressed a standing-room-only crowd in Langley’s Reid Conference Center on Wednesday, while another group of employees watched from a quarter-mile away at the Pearl Young Theater.

Bolden spoke for 40 minutes about research, aeronautics, education, space and almost anything else anyone wanted to talk about. The people at Langley Research Center listened intently, and many heard the words of support they were waiting for from their new boss and his deputy. Garver noted that she has special affection for Langley because it is the only NASA center with a woman director. The director, Lesa Roe, introduced the two at the event.

bolden-lrc-speach

(Above) With NASA Deputy Administrator Lori Garver in the background, Charles Bolden addresses a packed house at the Reid Conference Center at NASA’s Langley Research Center.

Questions from employees elicited thoughtful, sometimes unexpected answers. It was Bolden’s first visit as NASA administrator to the place he repeatedly referred to as the “Mother Center.” Several old friends Bolden knew from his 14-year career as a shuttle astronaut were present in the audience.

Bolden remarked in response to one question that while any operation “is always at a crossroads . . . NASA is at a critical crossroads.”

“My vision is that we will find ways to do a little bit of all of the things that we need to do,” he said.

With answers come “challenges,” which Bolden said he said he doesn’t consider a politically correct synonym for “problems.” NASA, he said, is about research. He described a third-grader’s drawing that soon will be on his office wall in Washington; it says “We’ll never know if we don’t go.”

“That’s why we do what we do,” he said. “What we do is research and experimentation. We are a research organization, but we don’t do enough R and D, basic research. I’ll go down on my hands and knees if I need to, but we have got to find more money for you all to do basic research.”

Bolden interrupted building applause in the room and told the audience to wait for action instead of words. “It’s easy for me to stand up here and say that,” he noted. “You’ve got to back this stuff up.” Bolden also asked for employees’ assistance.

“I need your help,” he said, “because we’re going to find ways to get back to basic research as well as applied research.”

nasa_banner

NASA, he said, is about research, and Bolden harkened to a child’s drawing that soon will be on his office wall in Washington. Lettered on that third-grader’s art is “We’ll never know if we don’t go.”

After a questioner offered a possible solution to several project issues, Bolden challenged employees to have the courage of their convictions. He encouraged center directors to support and nurture that courage.

In response to a question on the “10 healthy NASA centers philosophy,” Bolden said he has spent time working at Langley as well as NASA’s Johnson Space Center, Marshall Space Flight Center and Goddard Space Flight Center. Visits to other field centers will come soon.

“You never make an assessment or a judgment about how everything is working until you have a chance to see it,” he said. “It appears to be working.”

In response to a query about the cost of industry’s use of NASA facilities, Bolden said he hoped to convene a summit of the major players in the aerospace industry.

“I need your help,” he said, “because we’re going to find ways to get back to basic research as well as applied research.”

NASA, he said, is about research, and Bolden harkened to a child’s drawing that soon will be on his office wall in Washington. Lettered on that third-grader’s art is “We’ll never know if we don’t go.”

After a questioner offered a possible solution to several project issues, Bolden challenged employees to have the courage of their convictions. He encouraged center directors to support and nurture that courage.

In response to a question on the “10 healthy NASA centers philosophy,” Bolden said he has spent time working at Langley as well as NASA’s Johnson Space Center, Marshall Space Flight Center and Goddard Space Flight Center. Visits to other field centers will come soon.

“You never make an assessment or a judgment about how everything is working until you have a chance to see it,” he said. “It appears to be working.”

In response to a query about the cost of industry’s use of NASA facilities, Bolden said he hoped to convene a summit of the major players in the aerospace industry.


GalaxyWire

The Space News Aggregator
Home

Top Space News

Astro Log

Blogging the Final Frontier

Launch Alerts

Never Miss a Launch

Knowledge Base

Space History at the Speed of Light

Galaxy Wire TV

Watch the Universe