Radar altimeter

Details Radar altimeter Radar altimeter

1975-07-11

1977-05-10

Tubbesing, T.H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 12A, G01S 906

Patent

active

040231682

ABSTRACT:
Following an emergency ejection from an aircraft, a radar altimeteris used to sense when a pilot or crewman, descending by parachute, is within 100 to 500 feet of the underlying terrain. When the predetermined altitude range is reached, the radar altimeter actuates a release mechanism and deploys a survival kit which remains connected to the parachutist via a strap or lanyard. The device can also be modified to measure and indicate the altitude above the terrain to function as a normal radar altimeter.

REFERENCES:
patent: 3167766 (1965-01-01), Norris, Jr.
patent: 3231889 (1966-01-01), Leyde et al.
patent: 3305862 (1967-02-01), Samuel et al.
patent: 3309703 (1967-03-01), Ammon et al.
patent: 3366956 (1968-01-01), Westby
patent: 3757327 (1973-09-01), Wiley, Jr.

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