F-22 Raptor hits Mach 1.5 on camelina-based biofuel

The U.S. Air Force’s goal of acquiring 50 percent of its domestic aviation fuel via alternative fuel blends derived from domestic sources by 2016 got a boost on Friday March 18, when an F-22 Raptor was successfully flown at speeds of up to Mach 1.5 on a 50/50 fuel blend of conventional petroleum-based JP-8 (Jet Propellant 8) and biofuel derived from an inedible plant called camelina. The flight capped off a series of ground and flight tests carried out earlier in the week for the Raptor using the biofuel blend to evaluate its suitability in the F-22 weapons system.

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