TERRENCE O'NEILL
Pilots at Livingston St, Boulder, IL
License number
Illinois A1423951
Issued Date
Apr 2015
Expiration Date
Apr 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
791 Livingston St, Boulder, IL 62231
Professional information
Means For Maintaining A Desired Relationship Between Roll And Yaw Stability In A Swept-Wing Aircraft By Varying Dihedral As A Function Of Lift Coefficient
US Patent:
5078338, Jan 7, 1992
Filed:
Jan 19, 1990
Appl. No.:
7/467534
Inventors:
Terrence O'Neill - Carlyle IL
Timothy O'Neill - Carlyle IL
Timothy O'Neill - Carlyle IL
International Classification:
B64C 338
US Classification:
244 47
Abstract:
An assembly for controlling the lateral stability of a swept-wing aircraft by varying the geometric dihedral of the wing as a function of the wing's lift coefficient, such assembly including a mechanism for producing a signal or other type response representative of the lift coefficient of the wing at any particular point in time during flight including changes in such lift coefficient due to changes in the particular flight condition or aerodynamic characteristics of such wing, and a mechanism responsive to such signal or other response for controlling and activating movement of variable dihedral panels associated with the respective opposite portions of the wing. Movement of the variable dihedral panels changes the geometric dihedral of such wing in direct response to changes in the wing's lift coefficient and this enables one to maintain the overall effective dihedral of the aircraft, and consequently, the rolling moment stability coefficient, relatively constant throughout the entire flight envelope of the aircraft.