1969•High speed ground transportation journalRequires access

PRELIMINARY INVESTIGATION OF THE LIFT AND DRAG OF AN AIRFOIL OPERATED BETWEEN PARALLEL LANES

J. C. Williams

Abstract

Study of configuration proposed by PBS Lissaman for high speed ground transportation system, in which an airfoil operated in a tunnel is used to support a load-carrying body mounted exterior to the tunnel. A substantial increase in airfoil lift is obtained when the airfoil is operated in this configuration. Drag is also increased, but over a wide range of angle of attack the increase in lift is sufficiently large so that there is an increase in lift to drag ratio.

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Available abstract

Key concepts: Airfoil, Lift-to-drag ratio, Drag, Lift (data mining), Ground effect (cars), Angle of attack, Lift-induced drag, Aerodynamic center