Senior Airman Jacob Prine checks the fuel connection to a F-15 Eagle Oct. 22, 2010, prior to a flight test of new, environmentally-friendly fuel. Aircrews from the 46th Test Wing and Air Force engineers evaluated flight parameters using a blend of standard JP-8 fuel and hydro-treated, renewable jet biofuel. The Air Force is working toward changing half of the continental jet fuel requirement to alternative fuels by 2016. 2nd Lt. Andrew Caulk

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Keywords: -15, .., 46th, air, airman, biofuel, defense, eagle, environmentally-friendly, force, fuel, hydro-treated, jacob, jet, jp-8, military, prine, renewable, senior, test, united, war, wing