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What is interference drag?

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in Aircraft Design by (701k points)
What is interference drag?

(a) Drag produced by interaction of different components

(b) Skin friction drag

(c) Lift induced drag

(d) Drag due to weight of the aircraft only

The question was asked in an interview for internship.

Query is from Aerodynamic Forces topic in section Aerodynamics of Aircraft Design

1 Answer

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Best answer
Correct choice is (a) Drag produced by interaction of different components

For explanation I would say: Drag produced due to interaction between various components is termed as interference drag. Skin friction drag is due to viscosity effects. Skin friction is one of the parameters which affects aerodynamic heating. Lift induced drag is result of vortices and downwash.

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