NASA NTRS · 19800000215
Grooves reduce aircraft drag
Abstract
Aerodynamic drag can be reduced by many small longitudinal grooves machined in aircraft skin. Experiments show that grooves parallel to airflow reduce drag by 4 to 7 percent. Reduced drag translates into reduced engine power required to overcome drag and ultimately to lower fuel consumption.
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Walsh, M. J.. 1980-09-01. Grooves reduce aircraft drag. https://ntrs.nasa.gov/citations/19800000215
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