Aircraft orientation determining means

Details Aircraft orientation determining means Aircraft orientation determining means

1978-08-18

1979-09-11

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 9R, 343102, 364429, 364447, G01S 314, G01S 944

Patent

active

041677358

ABSTRACT:
A system for measuring, in conjunction with a GCA radar, the crab angle of n aircraft which is making its landing approach above a runway just prior to touch-down. Two doppler radars are placed, one on each side of the runway at equal spacings from the center line of the runway, with their antennas facing each other. The doppler radars function at very nearly the same frequency. The average doppler frequency of the echo received by each radar is determined and the frequencies are subtracted from each other. The difference in doppler frequency and the ground velocity of the aircraft are coupled to a computer which solves an equation to provide the value of the crab angle of the aircraft.
The result can be radioed to the aircraft so that an adjustment in yaw can be made to zero the crab angle before touch-down.

REFERENCES:
patent: 3185981 (1965-05-01), Gunkel et al.
patent: 3197775 (1965-07-01), Sendler
patent: 3204237 (1965-08-01), Overcash
patent: 3222672 (1965-12-01), Forestier
patent: 3226713 (1965-12-01), Sorkin et al.
patent: 3564543 (1971-02-01), Nehama et al.
patent: 3775766 (1973-11-01), Gendreu et al.
patent: 3788579 (1974-01-01), Sliney
patent: 3860921 (1975-01-01), Wood

Affiliated with

Also associated with

Rating

Aircraft orientation determining means does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aircraft orientation determining means, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aircraft orientation determining means will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-479693