The test was a part of a wider USAF effort to qualify aircraft to use the fuel, a 50/50 mix of JP-8 and a Fischer-Tropsch process-produced, natural gas-based fuel.[234] Then in 2011 a Raptor made a supersonic flight on a 50% mixture of biofuel derived from camelina.[235]In April 2012, the U.S. military deployed several F-22s to an allied base less than 200 miles from Iran.[236] The Iranian defense