File:Lockheed box wing aircraft concept 2011.jpg

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English: 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.
Date circa 2011
date QS:P,+2011-00-00T00:00:00Z/9,P1480,Q5727902
Source http://www.nasa.gov/topics/aeronautics/features/future_airplane_gallery18.html (direct link)
Author NASA/Lockheed Martin

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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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current14:37, 10 March 2013Thumbnail for version as of 14:37, 10 March 20131,415 × 900 (238 KB)Huntster (talk | contribs)== {{int:filedesc}} == {{Information |Description={{en|1=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 ad...

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