NASA memberikan tiga kontrak untuk mendesain pesawat yang akan mereka gunakan tahun 2025 - 2035 kepada
Boeing,
Northrup Grumman dan
Lockheed Martin. Masing-masing pesawat haruslah memiliki tingkat kebisingan yang lebih rendah, bahan bakar yang lebih efisien dan memiliki gas buang yang lebih ramah lingkungan daripada pesawat terbang sekarang.NASA juga memberikan kesempatan ini kepada kalangan Perguruan tinggi di amerika serikat untuk memberikan desain-desain mereka.
Spesifikasi lainnya yang diminta oleh NASA adalah bahwa pesawat pesawat itu harus dapat terbang dengan 85 persen dari kecepatan suara; mencakup kisaran sekitar 7.000 mil, dan dapat membawa beban muatan antara 50.000 hingga 100.000 pon, baik penumpang ataupun kargo. Berikut adalah desain konsep dari tiga perusahaan raksasa pesawat tersebut. Mungkin tidak semua dari desain-desain ini akan dibuat, tetapi beberapa desain sudah dalam tahap pembuatan dan uji coba.
Boeing's advanced vehicle concept centers around the familiar blended wing body design
like the X-48. What makes this design different is the placement of its Pratt & Whitney geared turbofan engines on the top of the plane's back end, flanked by two vertical tails to shield people on the ground from engine noise. The design also uses other technologies to reduce noise and drag, and long-span wings to improve fuel efficiency. This design is among those presented to NASA at the end of 2011 by companies that conducted NASA-funded studies into aircraft that could enter service in 2025.
Lockheed Martin's advanced vehicle concept proposes a box wing design, which is now feasible thanks to modern lightweight composite (nonmetallic) materials, landing gear technologies and other advancements. Its Rolls Royce Liberty Works Ultra Fan Engine achieves a bypass ratio (flow of air around engine compared to through the engine) nearly five times greater than current engines, pushing the limits of turbofan technology to maximize efficiency. This design is among those presented to NASA at the end of 2011 by companies that conducted NASA-funded studies into aircraft that could enter service in 2025.
Northrop Grumman's concept is based on the extremely aerodynamic "flying wing" design. The four Rolls Royce engines are embedded in the upper surface of the wing to achieve maximum noise shielding. The company used its expertise in building military planes without a stabilizing tail to propose this design for the commercial aviation market.
This computer-generated image shows a possible future "flying wing" aircraft, very efficiently and quietly in flight over populated areas. This kind of design, produced by
Northrop Grumman, would most likely carry cargo at first and then also carry passengers.
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.
This computer rendering shows AMELIA (
Advanced Model for Extreme Lift and Improved Aeroacoustics), a possible 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 scheduled for testing in a NASA wind tunnel in the fall of 2011.
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 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.
The Subsonic
Ultra Green Aircraft Research, or SUGAR, Volt future aircraft design comes from the research team led by The
Boeing Company. 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.
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.
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. 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 Hybrid Wing Body H-Series future aircraft design concept comes from the research team led by the
Massachusetts Institute of Technology. This design is suitable for intercontinental flights and larger passenger loads similar to a Boeing 777. It features embedded engines using variable area nozzles with thrust vectoring, noise shielding thanks to the fuselage and other technologies, and advanced onboard vehicle health monitoring systems. This aircraft is designed to fly at Mach 0.83 carrying 354 passengers 7,600 nautical miles.
Source: NASA
