2011. július 28., csütörtök

Beauty of Future Airplanes is More than Skin Deep









An 18-month NASA research effort to visualize the passenger airplanes of the future has produced some ideas that at first glance may appear to be old fashioned. Instead of exotic new designs seemingly borrowed from science fiction, familiar shapes dominate the pages of advanced concept studies which four industry teams completed for NASA's Fundamental Aeronautics Program in April 2010.

Look more closely at these concepts for airplanes that may enter service 20 to 25 years from now and you'll see things
that are quite different from the aircraft of today.

Just beneath the skin of these concepts lie breakthrough airframe and propulsion technologies designed to help the commercial aircraft of tomorrow fly significantly quieter, cleaner, and more fuel-efficiently, with more passenger comfort, and to more of America's airports.

You may see ultramodern shape memory alloys, ceramic or fiber composites, carbon nanotube or fiber optic cabling, self-healing skin, hybrid electric engines, folding wings, double fuselages and virtual reality windows.

"Standing next to the airplane, you may not be able to tell the difference, but the improvements will be revolutionary," said Richard Wahls, project scientist for the Fundamental Aeronautics Program's Subsonic Fixed Wing Project at NASA's Langley Research Center in Hampton, Va. "Technological beauty is more than skin deep."

In October 2008, NASA asked industry and academia to imagine what the future might bring and develop advanced concepts for aircraft that can satisfy anticipated commercial air transportation needs while meeting specific energy efficiency, environmental and operational goals in 2030 and beyond. The studies were intended to identify key technology development needs to enable the envisioned advanced airframes and propulsion systems.






Another Take on Supersonic

Our ability to fly at supersonic speeds over land in civil aircraft depends on our ability to reduce the level of sonic booms. NASA has been exploring a variety of options for quieting the boom, starting with design concepts and moving through wind tunnel tests to flight tests of new technologies. This rendering of a possible future civil supersonic transport shows a vehicle that is shaped to reduce the sonic shockwave signature and also to reduce drag. 

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AMELIA Climbs High

This computer re


ndering shows AMELIA (Advanced Model for Extreme Lift and Improved Aeroacoustics),ossible future hybrid wing body-type subsonic vehicle with short takeoff and landing capabilities. Produced through a three-year NASA Research Announcement grant with the California Polytechnic State Institute, AMELIA's ability for steeper ascents and descents could reduce community noise levels on takeoff and landing. A model of this configuration is sch





Boxed-Wing Reduces Drag

This artist's concept shows a possible future subsonic aircraft using a boxed- or joined-wing configuration to reduce drag and increase fuel efficiency. This design of an aircraft that could enter service in the 2020 timeframe is one of a number of designs being explored by NASA with teams of researchers from industry and universities. 





The Double Bubble D8

The "double bubble" D8 Series future aircraft design concept comes from the research team led by the Massachusetts Institute of Technology.  Based on a modified tube and wing with a very wide fuselage to provide extra lift, its low sweep wing reduces drag and weight; the embedded engines sit aft of the wings. The D8 series aircraft would be used for domestic flights and is designed to fly at Mach 0.74 carrying 180 passengers 3,000 nautical miles in a coach cabin roomier than that of a Boeing 737-800.  The D8 is among the designs presented in April 2010 to the NASA Aeronautics Research Mission Directorate for its NASA Research Announcement-funded studies into advanced aircraft that could enter service in the 2030-2035 timeframe.






Small but Mighty

This future aircraft design concept comes from the research team led by GE Aviation.

Much lighter and more aerodynamic than current aircraft with the same capacity, the 20-passenger aircraft would reduce fuel consumption and noise and enable business jet-like travel between more than 1,300 airports. It features ultra-quiet turboprop engines, virtual reality windows and is designed to fly at Mach 0.55 for 800 nautical miles.  
This GE aircraft is among the designs presented in April 2010 to the NASA Aeronautics Research Mission Directorate for its NASA Research Announcement-funded studies into advanced aircraft that could enter service in the 2030-2035 timeframe. 







Business as Usual? Not.

The Silent Efficient Low Emissions Commercial Transport, or SELECT, future aircraft design comes from the research team led by Northrop Grumman Systems Corporation.   
Deceptively conventional-looking, the concept features advanced lightweight ceramic composite materials and nanotechnology and shape memory alloys. In addition to being energy efficient and environmentally friendly, the SELECT improves the capacity of the future air transportation system because it can be used at smaller airports and make them more effective. It is designed to fly at Mach 0.75 carrying 120 passengers 1,600 nautical miles.  The SELECT is among the designs presented in April 2010 to the NASA Aeronautics Research Mission Directorate for its NASA Research Announcement-funded studies into advanced aircraft that could enter service in the 2030-2035 timeframe.






Down to Earth Future Aircraft

The Volt is a twin-engine concept with a hybrid propulsion system that combines gas turbine and battery technology, a tube-shaped body and a truss-braced wing mounted to the top of the aircraft. This aircraft is designed to fly at Mach 0.79 carrying 154 passengers 3,500 nautical miles  The SUGAR Volt is among the designs presented in April 2010 to the NASA Aeronautics Research Mission Directorate for its NASA Research Announcement-funded studies into advanced aircraft that could enter service in the 2030-2035 timeframe. 




Green Supersonic Machine

This future aircraft design concept for supersonic flight over land comes from the team led by the Lockheed Martin Corporation.
The team used simulation tools to show it was possible to achieve over-land flight by dramatically lowering the level of sonic booms through the use of an "inverted-V" engine-under wing configuration. Other revolutionary technologies help achieve range, payload and environmental goals.  This concept is one of two designs presented in April 2010 to the NASA Aeronautics Research Mission Directorate for its NASA Research Announcement-funded studies into advanced supersonic cruise aircraft that could enter service in the 2030-2035 timeframe. 

The Subsonic Ultra Green Aircraft Research, or SUGAR, Volt future aircraft design comes from the research team led by The Boeing Company.  

eduled for testing in a NASA wind tunnel in the fall of 2011.



An Iconic Idea

This concept is one of two designs presented in April 2010 to the NASA Aeronautics Research Mission Directorate for its NASA Research Announcement-funded studies into advanced supersonic cruise aircraft that could enter service in the 2030-2035 timeframe. 
The "Icon-II" future aircraft design concept for supersonic flight over land comes from the team led by The Boeing Company.

A design that achieves fuel burn reduction and airport noise goals, it also achieves large reductions in sonic boom noise levels that will meet the target level required to make supersonic flight over land possible. 












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