Accession Number : ADD004180

Title :   A Circulation Controlled Rotor Blade.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Schmidt,J

Report Date : 24 Jun 1977

Pagination or Media Count : 14

Abstract : A circulation controlled rotor blade is described which reduces rotor flutter by introducing a laminar flow over the trailing edge. A trailing edge structure has a deformable tube to control a spanwise slot formed by the juxtaposition of an upper trailing edge lip over the deformable tube. The laminar flow is created by compressed fluid directed through the rotor blade and through the slot.

Descriptors :   *Rotor blades(Rotary wings), *Helicopter rotors, *Patent applications, Flutter, Reduction, Laminar flow, Trailing edges, Circulation, Control, Slots, Tubes, Coanda effect, Aerodynamics

Subject Categories : Helicopters
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE