Method of and apparatus for guiding agricultural aircraft

Details Method of and apparatus for guiding agricultural aircraft Method of and apparatus for guiding agricultural aircraft

1979-10-16

1983-08-09

Tubbesing, T. H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 73, 343 15, G01S 1378

Patent

active

043981950

ABSTRACT:
A microprocessor controls a radar trilateralization system, used on board an aircraft to provide pattern flying. A suitable hard wired board may be added to the microprocessor to enable it to read out any suitable flight pattern. A plurality of transponders are set up at known positions to establish a baseline. Then, by using known radar techniques, the system feeds radar derived, distance information into the microprocessor. The microprocessor calculates the airplane's position from these radar signals, relates that position to the X, Y grid locations in a desired flight pattern, and then gives an instrument readout. The pilot keeps a display of the instrument over an appropriate index, and the airplane flies over the entire predetermined flight pattern.

REFERENCES:
patent: 3648286 (1972-03-01), Schoneborn
patent: 4083047 (1978-04-01), Schalow
patent: 4231093 (1980-10-01), La Vance et al.
patent: 4234924 (1980-11-01), La Vance et al.

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