Automatic control device for tethered model airplane

Details Automatic control device for tethered model airplane Automatic control device for tethered model airplane

1974-12-23

1976-05-11

Blix, Trygve M.

Aeronautics and astronautics

Aircraft sustentation

Sustaining airfoils

244 76R, 244 80, B64C 1704

Patent

active

039553108

ABSTRACT:
A model airplane control device for automatically adjusting to wind conditions to maintain a generally level flight. The control device is responsive to changes in the inertial forces of the model airplane while in flight, eliminating the need for control cables to positively control the elevation of the model airplane. The device is designed to allow a child to hold a tethered model airplane in flight without having to control the vertical movement of the aircraft to make adjustments for variable wind conditions. The control device is connected to the elevator of the model airplane, so that movement of a balance arm will result in a responsive movement of the elevator. Included in the control assembly is a switching device which allows the operator to utilize a single airplane and alternately switch between automatic control of the airplane responsive to changes in inertial forces or acceleration in the airplane and the positive hand control responsive to the use of control lines.

REFERENCES:
patent: 2454598 (1948-11-01), Doyle
patent: 2523902 (1950-09-01), Effinger, Jr.
patent: 3032296 (1962-05-01), Streubel

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