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NASA tested fuel made from chicken and beef fat in one engine of a DC-8 in late March and early April, the agency reported Monday.

"The test results seem to support the idea that biofuels for jet engines are indeed cleaner-burning, and release fewer pollutants into the air," Ruben Del Rosario, manager of NASA's Subsonic Fixed Wing Project, said on the agency's website.

I've reported on research into biofuels made from flora such as algae and the jatropha plant. This is the first I've heard of animal fat.

The first tests kept the aircraft on the ground while researchers measured engine performance and checked exhaust for chemicals and contamination that could contribute to air pollution. NASA said it was the first test ever to measure biofuel emissions for nitrogen oxides and particulates.

The other three engines ran on Hydrotreated Renewable Jet Fuel, Jet Propellant 8, and a 50-50 blend of the two fuels.

The animal fat-fueled engine emitted 90 percent less black carbon emissions at idle and almost 60 percent less at takeoff thrust, while also producing much lower sulfate, organic aerosol and hazardous emissions, according to Bruce Anderson, the experiment's chief scientist.

Not the way to solve the global climate change crisis.
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