Interference drag

Definitions

• Drag generated by the collision of airstreams creating eddy currents, turbulence, or restrictions to smooth flow.
• Type of drag produced by placing two objects adjacent to one another. Combines the effects of form drag and skin friction.

References

• Instrument Flying Handbook, Federal Aviation Administration, 2014
• Pilot's Handbook of Aeronautical Knowledge, Federal Aviation Administration, 2023
• Powered Parachute Flying Handbook, Federal Aviation Administration, 2007
• Weight-Shift Control Aircraft Flying Handbook, Federal Aviation Administration, 2008