Skip to footer

NASA test of hypersonic inflatable heat shield a success

The mushroom-like Inflatable Re-entry Vehicle Experiment 3 performed as expected as it plunged through the Earth's atmosphere and splashed down in the Atlantic Ocean. 

|
Langley/Kathy Barnstorff/NASA
The IRVE-3 undergoes complete inflation system test under vacuum conditions in the Transonic Dynamics Tunnel at NASA’s Langley Research Center in Hampton, Va.

NASA launched a novel new heat shield prototype on a successful test flight Monday (July 23), a mission that sent a high-tech space balloon streaking through Earth's atmosphere at hypersonic speeds of up Mach 10.

The test flight blasted off atop a suborbital rocket at 7:01 a.m. EDT (1101 GMT) from NASA's Wallops Flight Facility on Wallops Island, Va. It sent a small capsule, called the Inflatable Re-entry Vehicle Experiment 3 (IRVE-3) into suborbital space, which deployed the inflatable heat shield and then plunged back down through Earth's atmosphere to splash down in the Atlantic Ocean.  

The mission, according to NASA, was an unqualified success and will help shape new re-entry systems for future spacecraft.

"It's great to see the initial results indicate we had a successful test of the hypersonic inflatable aerodynamic decelerator," said James Reuther, deputy director of NASA's Space Technology Program, in a statement. "This demonstration flight goes a long way toward showing the value of these technologies to serve as atmospheric entry heat shields for future space." [Photos: NASA's Inflatable Heat Shield Ideas for Spaceships]

The IRVE-3 heat shield is a cone made up of inflatable rings that are wrapped in layers of high-tech thermal blankets to protect it (and its space capsule) from the searing heat of re-entry through Earth's atmosphere. The 680-pound (308-kg) heat shield prototype was packed inside a 22-inch wide (56-centimeter) nose cone for the test flight. It expanded to a heat shield 10 feet (3 meters) across during the flight.

During the test, which was overseen by  NASA's Langley Research Center in Hampton, Va., the IRVE-3 heat shield launched into space atop a Black Brant 4 rocket and separated from the booster six minutes later about 280 miles (450 kilometers) above the Atlantic Ocean. IRVE-3 then inflated itself with nitrogen gas as expected, creating a mushroom-shaped heat shield known as an aeroshell.

Four cameras aboard the IRVE-3 prototype recorded the capsule's plunge back to Earth, proving that its inflatable heat shield successfully withstood scorching of about 1,000 degrees Fahrenheit (537 degrees Celsius) during re-entry at hypersonic speeds of up to 6,000 mph (9,656 kph). The IRVE-3 heat shield splashed down in the Atlantic Ocean off the coast of North Carolina, where a high-speed U.S. Navy Stiletto boat crew was expected to retrieve it. From launch to splashdown, the entire spaceflight took about 20 minutes.

This isn't the first time NASA has launched an inflatable heat shield into space.

The first IRVE experiment launched in 2007, but failed due to a booster failure. In 2009, the space agency successfully flew the IRVE-2 inflatable heat shield. The IRVE-3 payload, however, is heavier than the IRVE-2 design, and was subjected to more extreme re-entry heating than its predecessor.

"A team of NASA engineers and technicians spent the last three years preparing for the IRVE-3 flight," said Lesa Roe, director of NASA's Langley Research Center. "We are pushing the boundaries with this flight. We look forward to future test launches of even bigger inflatable aeroshells."

Follow SPACE.com for the latest in space science and exploration news on Twitter @Spacedotcom and on Facebook.

Copyright 2012 SPACE.com, a TechMediaNetwork company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

You've read  of  free articles. Subscribe to continue.
Real news can be honest, hopeful, credible, constructive.
What is the Monitor difference? Tackling the tough headlines – with humanity. Listening to sources – with respect. Seeing the story that others are missing by reporting what so often gets overlooked: the values that connect us. That’s Monitor reporting – news that changes how you see the world.
editor@csmonitor.com
Subscribe
Mark Sappenfield
Editor

Dear Reader,

About a year ago, I happened upon this statement about the Monitor in the Harvard Business Review – under the charming heading of “do things that don’t interest you”:

“Many things that end up” being meaningful, writes social scientist Joseph Grenny, “have come from conference workshops, articles, or online videos that began as a chore and ended with an insight. My work in Kenya, for example, was heavily influenced by a Christian Science Monitor article I had forced myself to read 10 years earlier. Sometimes, we call things ‘boring’ simply because they lie outside the box we are currently in.”

If you were to come up with a punchline to a joke about the Monitor, that would probably be it. We’re seen as being global, fair, insightful, and perhaps a bit too earnest. We’re the bran muffin of journalism.

But you know what? We change lives. And I’m going to argue that we change lives precisely because we force open that too-small box that most human beings think they live in.

The Monitor is a peculiar little publication that’s hard for the world to figure out. We’re run by a church, but we’re not only for church members and we’re not about converting people. We’re known as being fair even as the world becomes as polarized as at any time since the newspaper’s founding in 1908.

We have a mission beyond circulation, we want to bridge divides. We’re about kicking down the door of thought everywhere and saying, “You are bigger and more capable than you realize. And we can prove it.”

If you’re looking for bran muffin journalism, you can subscribe to the Monitor for $15. You’ll get the Monitor Weekly magazine, the Monitor Daily email, and unlimited access to CSMonitor.com.

Subscribe to insightful journalism

QR Code to NASA test of hypersonic inflatable heat shield a success
Read this article in
https://www.csmonitor.com/Science/2012/0723/NASA-test-of-hypersonic-inflatable-heat-shield-a-success
QR Code to Subscription page
Start your subscription today
https://www.csmonitor.com/subscribe