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By Catholic Online (NEWS CONSORTIUM)

4/23/2012 (2 years ago)

Catholic Online (www.catholic.org)

Super-fast unmanned vehicle streaked across the Pacific Ocean at 20 times the speed of sound

The test flight of an experimental aircraft capable of traveling at 20 times the speed of sound was undertaken last August. The Pentagon has now released the results of the super-fast vehicle, boasting the capability of striking anyplace in the world in less than an hour.

The August launch was the second flight of the Falcon technology. The first flight, in April of 2010, also ended prematurely with only nine minutes of flight time.

The August launch was the second flight of the Falcon technology. The first flight, in April of 2010, also ended prematurely with only nine minutes of flight time.

Highlights

By Catholic Online (NEWS CONSORTIUM)

Catholic Online (www.catholic.org)

4/23/2012 (2 years ago)

Published in U.S.

Keywords: Falcon, Mach 20, experimental flight, Pentagon


LOS ANGELES, CA (Catholic Online) - The Pentagon's research arm, the Defense Advanced Research Projects Agency, or DARPA, carried out the test flight of an aircraft capable of traveling at 20 times the speed of sound.

Called the Falcon Hypersonic Technology Vehicle 2, the arrowhead-shaped unmanned aircraft, lifted off from Vandenberg Air Force Base, northwest of Santa Barbara, into the upper reaches of the Earth's atmosphere aboard an eight-story Minotaur IV rocket made by Orbital Sciences Corp.

After reaching an unspecified altitude, the aircraft jettisoned from its protective cover atop the rocket, then dived back toward Earth, leveled out and glided above the Pacific at 20 times the speed of sound, or Mach 20.

The plan was for the Falcon to speed westward for about 30 minutes before plunging into the ocean near Kwajalein Atoll, about 4,000 miles from Vandenberg.

The flight was ended about nine minutes into flight for unknown reasons. The launch had received worldwide attention but not much information was provided on why the launch failed.

DARPA said in a statement last week that the searing high speeds caused portions of the Falcon's skin to peel from the aero-structure. The resulting gaps created strong shock waves around the vehicle as it traveled nearly 13,000 mph, causing it to roll abruptly.

Built by Lockheed Martin Corp., the Falcon is made of durable carbon composite material, which was expected to keep the aircraft's crucial internal electronics and avionics safe from the fiery hypersonic flight. Surface temperatures on the Falcon were expected to reach more than 3,500 degrees, hot enough to melt steel.

"The initial shock wave disturbances experienced during second flight, from which the vehicle was able to recover and continue controlled flight, exceeded by more than 100 times what the vehicle was designed to withstand," DARPA Acting Director Kaigham J. Gabriel said in a statement. "That's a major validation that we're advancing our understanding of aerodynamic control for hypersonic flight."

In spite of the failed flight, the mission successfully demonstrated stable aerodynamically controlled flight at speeds up to Mach 20 for nearly three minutes.

Sustaining hypersonic flight has been an arduous task for aeronautical engineers over the years. While supersonic means that an object is traveling faster than the speed of sound, or Mach 1, "hypersonic" refers to an aircraft going five times that speed or more.

The Falcon hit Mach 20. An aircraft could zoom from Los Angeles to New York in less than 12 minutes at that speed, which is 22 times faster than a commercial airliner.

The August launch was the second flight of the Falcon technology. The first flight, in April of 2010, also ended prematurely with only nine minutes of flight time.

There aren't any more flights scheduled for the Falcon program.

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Pope Francis: end world hunger through 'Prayer and Action'


2014 - Distributed by THE NEWS CONSORTIUM

Pope Francis Prayer Intentions for August 2014
Refugees:
That refugees, forced by violence to abandon their homes, may find a generous welcome and the protection of their rights.
Oceania: That Christians in Oceania may joyfully announce the faith to all the people of that region.



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