Government // Mobile & Wireless
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3/27/2014
07:00 AM
Elena Malykhina
Elena Malykhina
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DARPA Next-Gen Aircraft: Sneak Peek

Four companies vie to develop a new breed of unmanned aerial vehicle (UAV) that can take off and land vertically like a helicopter but fly twice as fast.
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Image: DARPA
Image: DARPA

In an effort to develop faster and more efficient alternatives to today's helicopters, the Defense Advanced Research Projects Agency (DARPA) has selected four companies to design new aircraft with vertical takeoff and landing flight capabilities.

The agency on March 18 awarded prime contracts for phase one of its Vertical Takeoff and Landing Experimental Plane (VTOL X-Plane) program to the Boeing Company, Aurora Flight Sciences Corporation, Sikorsky Aircraft Corporation, and Karem Aircraft, Inc.

The companies share a common element in their designs: technologies that decrease the number of systems and the overall mechanical complexity of the aircraft. The resulting expected improved efficiency in the use of space and weight in turn will leave room for better performance and new features.

All four companies have proposed designs for unmanned vehicles, although the technologies developed for VTOL X-Plane could also apply to manned aircraft, DARPA said. The agency shelled out $47 million in phase one of VTOL X-Plane for the individual concept design awards and has budgeted a total of $130 million for the 52-month program.

DARPA expects the new designs to improve the top sustained flight speeds of VTOL aircraft beyond the current 150 knots to 170 knots (173 mph to 196 mph). Previous designs haven't been able to increase top speed without compromising range, efficiency, and the payload, according to the agency. Greater speed would allow missions to be completed faster and make aircraft less vulnerable to enemy attack.

Specifically, DARPA has tasked companies with developing aircraft that can: achieve a top sustained flight speed of 300 to 400 knots (345 mph to 460 mph); increase aircraft hover efficiency from 60% to at least 75%; provide a more favorable cruise lift-to-drag ratio; and carry a payload of at least 40% of the aircraft's projected gross weight of 10,000 to 12,000 pounds.

"The proposals we've chosen aim to create new technologies and incorporate existing ones that VTOL designs so far have not succeeded in developing. We're eager to see if the performers can integrate their ideas into designs that could potentially achieve the performance goals we've set," DARPA program manager Ashish Bagai said in a written statement.

Boeing, Aurora, Sikorsky, and Karem will submit preliminary designs in late 2015, at which point DARPA will choose the best design to build as a technology demonstrator. Flight tests of the new VTOL aircraft will take place in 2017 or 2018, DARPA said. Phase two of the program will move into design, development, and integration, and phase three will be flight-test demonstrations.

Although DARPA hasn't provided many details about the exact technology involved in the four designs, it has released artists' concepts of the aircraft that the companies are working on (with the exception of Aurora). Click through our slideshow to see each of the VTOL X-Plane designs.

Elena Malykhina began her career at The Wall Street Journal, and her writing has appeared in various news media outlets, including Scientific American, Newsday, and the Associated Press. For several years, she was the online editor at Brandweek and later Adweek, where she ... View Full Bio

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J_Brandt
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J_Brandt,
User Rank: Ninja
3/31/2014 | 10:27:01 PM
Cool
I think my favorite is the central blade/flying wing one on the upper right corner.  Maybe Amazon will adopt one of these designs to deliver my packages!  And of course it can add to all the big data  already swarming around me.
Pooua
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Pooua,
User Rank: Apprentice
3/27/2014 | 10:55:33 AM
Familiar Forms
One of the designs on the sheet reminds me of some aircraft I sketched out when I was in high school in the '80s. 
Ariella
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Ariella,
User Rank: Ninja
3/27/2014 | 9:39:15 AM
Re: So good
Yes, there's a lot more flexibility and takeoff when a runway is not required. 
Madhava verma dantuluri
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Madhava verma dantuluri,
User Rank: Apprentice
3/27/2014 | 8:49:50 AM
So good
Amazing technology and would be a great importance in the future.
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