>> YOUR LINK HERE: ___ http://youtube.com/watch?v=0QqQ1j1vBgw

The video shows the unique propfan design. The propfan is designed to achieve the speeds and altitudes of jets while only using half the normal amount of fue...

CIVIL, AVIATION;, NASA, PROGRAMS;, PROP-FAN, TECHNOLOGY;, PROPELLER, FANS;, RESEARCH, AND, DEVELOPMENT;, ALTITUDE;, GAS, TURBINE, ENGINES;, JET, AIRCRAFT
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