30% biofuel blend tested in a Boeing 737 engine

CFM International has successfully carried out an initial test of a CFM56-7B engine using an ester-type biofuel at Snecma’s Villaroche facility near Paris.

CFM56 engines are used on Boeing 737-600/700/800/900 aircraft. This includes the Royal Australian Air Force Airborne Early Warning and Control aircraft currently under development in by Boeing.

RAAF Wedgetail aircraft

The fuel used for this test was a 30 percent vegetable oil methyl ester biofuel blended with 70 percent conventional Jet-A1 fuel. The test was designed to check the operation of a jet engine using a fuel made from biomass, without making any technical changes to the engine. The target is a 20 percent reduction in carbon dioxide emissions compared with current fuels. Results have not been published.

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