Accession Number : ADD013450

Title :   Thrust Deflector and Force Augmentor.

Descriptive Note : Patent, Filed 25 Feb 81, patented 16 Aug 83,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Nichols, James H , Jr ; Furey, Roger J ; Englar, Robert J ; Lee, David G

Report Date : 16 Aug 1983

Pagination or Media Count : 13

Abstract : A non-moving fluids thrust deflector and force augmentor is disclosed for aerodynamic and hydrodynamic vehicles and devices. When the deflector is utilized in an aerodynamic application and in conjunction with a thrust producer and a plenum, upon pressure initiation within the plenum, a jet sheet issues and remains attached to a specially designed wing having a rounded trailing edge by balancing reduced static pressure with centrifugal force, and thus provides a controlled resultant force or thrust in some direction other than that corresponding to the original flow. Upon application to hydrodynamic vehicles, the deflector is placed in the propulsor stream and provides turning or pitching forces to the vehicle without any deflection of itself. These applications require no mechanical moving components to deflect or augment the thrust or force, and thus yield considerable reductions in weight and complexity. This non-mechanical means, as applied to aircraft with wing-mounted engines, deflects engine thrust while augmenting lift, thus providing short takeoff and landing of STOL type aircraft; and, as applied to vertical takeoff and landing of VTOL type aircraft, provides thrust deflecting and reversing capabilities for the aircraft, which requires no moving mechanical flow deflection devices. Moreover, the non-mechanical means as applied to water-borne vehicles may be placed in the propulsor stream and provide turning or pitching forces to the vehicle without any deflection of itself.

Descriptors :   *DEFLECTORS, *PATENTS, *THRUST CONTROL, *CONTROL JETS, AERODYNAMICS, AIRCRAFT, AUGMENTATION, CENTRIFUGAL FORCE, DEFLECTION, FLUIDS, HYDRODYNAMICS, MECHANICAL COMPONENTS, PRESSURE, PROPULSION SYSTEMS, REDUCTION, STATIC PRESSURE, STATIONARY, STREAMS, TAKEOFF, THRUST, TRAILING EDGES, VEHICLES, VERTICAL ORIENTATION, VERTICAL TAKEOFF AIRCRAFT, WATERBORNE, WINGS, THRUST REVERSAL, JET FLOW, TURNING(MANEUVERING), HIGH LIFT, VERTICAL LANDINGS, PITCH(MOTION), SUPERCRITICAL AIRFOILS, THRUST AUGMENTATION

Subject Categories : Aircraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE