THE term interference in its aerodynamic sense is generally associated with an effect that spoils the performance of an aeroplane mainly by increasing its drag at a given lift. While there are good grounds for this outlook, it is of some importance to remember that it by no means represents the whole truth. Interference effects are not confined solely to changes of drag or lift: they often play a material part in many other properties of a complete aeroplane such as its stability, its spinning properties and in the phenomenon known as buffeting. Further, it is not correct to assume that interference always works against the designer; it may quite well assist him in certain cases, and the better he understands its causes the more chance he has of designing combinations having favourable interference.
Ower, E. (1934), "A Note on Interference: The Effects of Interference Phenomena on Drag, Lift, and other Qualities of the Aeroplane", Aircraft Engineering and Aerospace Technology, Vol. 6 No. 4, pp. 93-96. https://doi.org/10.1108/eb029791Download as .RIS
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