Flight control device for airplanes

Details Flight control device for airplanes Flight control device for airplanes

1982-09-07

1984-06-19

Blix, Trygve M.

Aeronautics and astronautics

Aircraft control

Rudders and empennage

244 45R, 244 76R, 244 82, B64C 508, B64C 912

Patent

active

044550049

ABSTRACT:
Aircraft wing fatigue life and weight are strongly influenced by maximum wing root bending moment. The object of the invention is to augment the wing root bending moment relief that can be provided by the deflection of aircraft ailerons (12) in the conventional manner, while reducing or eliminating aileron induced wing torsional loading. To accomplish this, a movable aerodynamic control surface (14) is mounted on the outboard side of a contoured boom (13) situated at each wingtip. The exact size and location of the control surfaces (14) are determined by the particular aircraft application. Control surface size is a function of the aircraft aileron size, and each control surface (14) is located ahead of the elastic axis (10') of the wing (10). In addition to providing load alleviation, asymmetric deflection of the wingtip control surfaces (14) creates an aircraft rolling moment that adds to that produced by aileron deflection.

REFERENCES:
patent: 1464784 (1923-08-01), Tarbox
patent: 1763228 (1930-06-01), Fokker
patent: 1798914 (1931-03-01), Thurston
patent: 2049188 (1936-07-01), Alfaro
patent: 2369820 (1945-02-01), Douglas
patent: 2406588 (1946-08-01), Cornelius
patent: 2734704 (1956-02-01), Vogt
patent: 2846165 (1958-08-01), Axelson
patent: 3279725 (1966-10-01), Andrew et al.

Affiliated with

Also associated with

Rating

Flight control device for airplanes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flight control device for airplanes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flight control device for airplanes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-411021