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Aviation glossary

Specific Fuel Consumption

What is specific fuel consumption?

Illustration related to specific fuel consumption
Image: Steffen Digeser, Mario Erdmann, Franz-Paul Gulde, Thomas Mühleisen, Joachim Schommers, Roland Tatzel — CC BY-SA 3.0, via Wikimedia Commons

Specific fuel consumption is a measure of engine efficiency — specifically, how many pounds of fuel an engine burns in one hour to produce one horsepower.

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