Which drag component arises from the interaction between wing and fuselage aerodynamics?

Which drag component arises from the interaction between wing and fuselage aerodynamics?

• A. Interference drag
• B. Form drag
• C. Skin friction drag
• D. Induced drag

Answer: (A)

Interference drag is caused by the way air flows around the wing and the fuselage at their junction. When the wing and fuselage are close together, their disturbed airflows mix and interact, creating pressure patterns that aren’t present when each surface is considered alone. This interaction changes how the air accelerates and decelerates around the surfaces, leading to extra drag beyond the sum of the wing and fuselage’s individual drags. Form drag comes from the overall shape and pressure distribution around a body, but not specifically from the interaction at the wing-fuselage junction. Skin friction drag is the viscous resistance from air rubbing along the surface. Induced drag arises from lift-related effects, especially wingtip vortices, rather than from the junction between wing and fuselage.

Interference drag is caused by the way air flows around the wing and the fuselage at their junction. When the wing and fuselage are close together, their disturbed airflows mix and interact, creating pressure patterns that aren’t present when each surface is considered alone. This interaction changes how the air accelerates and decelerates around the surfaces, leading to extra drag beyond the sum of the wing and fuselage’s individual drags.

Form drag comes from the overall shape and pressure distribution around a body, but not specifically from the interaction at the wing-fuselage junction. Skin friction drag is the viscous resistance from air rubbing along the surface. Induced drag arises from lift-related effects, especially wingtip vortices, rather than from the junction between wing and fuselage.