- The resistance of the air produced by any part of the airplane that does not produce lift. The parasitic drag is directly proportional to the size (S), the square of the speed (V2), the density (p) of the air, and the degree to which the body is streamlined. Parasite drag is further divided into skin friction, form drag, and interference drag. Parasite drag is directly proportional to the square of the speed. See also skin friction, form drag, and interference drag.
Aviation dictionary. 2014.
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parasite drag — n. Aeron. the drag caused by the parts of an aircraft that do not provide lift, as nacelles, the fuselage, etc … English World dictionary
parasite drag — noun or parasite resistance : the portion of the drag of an airplane that does not include the induced drag of the wings * * * Aeron. the component of drag caused by skin friction and the shape of the surfaces not contributing to lift. [1925 30]… … Useful english dictionary
parasite drag — Aeron. the component of drag caused by skin friction and the shape of the surfaces not contributing to lift. [1925 30] * * * … Universalium
Drag (physics) — Shape and flow Form drag Skin friction 0% 100% 10% 90% … Wikipedia
drag — i. That component of aerodynamic forces acting on the wing or the airfoil section, which is parallel and opposite to the relative airflow. The sources of drag are the pressure distribution patterns over the airfoil, called induced drag; the skin… … Aviation dictionary
parasite — noun /ˈpærəˌsaɪt/ a) A (generally undesirable) living organism that exists by stealing the resources produced/collected by another living organism. Lice, fleas, ticks and mites are widely spread parasites. b) A person who relies on other peoples… … Wiktionary
parasite resistance — noun see parasite drag … Useful english dictionary
parasite power — As it pertains to helicopters, it is the power required to overcome the drag of the fuse lage when the helicopter is in straight and level flight. The value of parasite power is zero when the helicopter is in the still air hover, and its value… … Aviation dictionary
skin friction/surface friction drag — Drag caused by the unevenness in the skin of a body. The layers of air near the surface are retarded, and the speed of the airflow increases as the distance from the skin increases. To reduce the skin friction, the surface should be smoothened to … Aviation dictionary
Lift-induced drag — In aerodynamics, lift induced drag, induced drag, vortex drag, or sometimes drag due to lift, is a drag force that occurs whenever a moving object redirects the airflow coming at it. This drag force occurs in airplanes due to wings or a lifting… … Wikipedia