Accession Number : ADD000038

Title :   Circulation Control Airfoil System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Williams,Robert M ; Murphy,Richard D

Report Date : 09 Oct 1973

Pagination or Media Count : 4

Abstract : The patent relates to a lifting airfoil which has the capability of exhibiting a coanda profile, or blunt trailing edge for low speed landings capability, and a blown flap or jet flap for high speed transonic operation. The airfoil may be a supercritical type employing a flap which can be rotated to combine with the airfoil to produce a coanda profile or which can be used as a blown flap at transonic speeds when combined with a high velocity blowing jet over the flap. In addition, the supercritical airfoil can include a slot in the underside of the foil for flowing a jet flap in lieu of the blown flap.

Descriptors :   *Supercritical wings, *Patents, Supercritical flow, Airfoils, Coanda effect, Jet flaps, Transonic flow

Subject Categories : Aerodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE