NAVAL AIR STATION PATUXENT RIVER, Md. (Sept. 1, 2011) Secretary of the Navy (SECNAV) Ray Mabus speaks during at a press conference at Naval Air Station Patuxent River about the Navy flight demonstration team, the Blue Angels, conducting demonstration flights with a 50-50 mix of biofuel and JP-5 aviation fuel. The Blue Angels will perform at the Naval Air Station Patuxent River Air Expo Sept. 3 and 4. ( Navy

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Keywords: .., aircraft, angels, biofuel, blue, energy, environment, navy