This multi-tipped engine exhaust sampling rake instrument was set up immediately behind the left inboard engine of NASA's DC-8 flying laboratory during synthetic fuels emission and performance testing.
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Mission: Alternative Fuel Effects on Contrails and Cruise Emissions (ACCESS)
This multi-tipped engine exhaust sampling rake instrument was set up immediately behind the left inboard engine of NASA’s DC-8 flying laboratory during synthetic fuels emission and performance testing at the Dryden Aircraft Operations Facility in Palmdale, CA.January 27, 2009
NASA Photo / Tom Tschida