Transmitters

Details Transmitters Transmitters

1985-10-25

1989-12-19

Blum, Theodore M.

Aeronautics and astronautics

Aircraft control

Automatic

244 314, B64C 1320

Patent

active

048877816

ABSTRACT:
A transmitter for use in an aircraft navigation system, the transmitter comprising a body portion (35) having an end (36, 37) adapted for implanting into the ground and an opposite end fitted with an antenna (38,39), and stabilizing means (41) arranged to be rendered operative on impact of the transmitter with the ground.

REFERENCES:
patent: 2253508 (1941-08-01), Crane et al.
patent: 2751541 (1956-06-01), Shuck
patent: 3103329 (1963-09-01), Unger et al.
patent: 3360772 (1967-12-01), Massa
patent: 3474405 (1969-10-01), Padberg, Jr.
patent: 3569923 (1971-03-01), Naubereit
patent: 3859598 (1975-01-01), McElwain et al.
patent: 4022128 (1977-05-01), Watson
patent: 4136343 (1979-01-01), Heffner et al.
patent: 4190000 (1980-02-01), Shaull et al.
patent: 4281809 (1981-08-01), Oglesby et al.
The A.R.R.L. Antenna Book, American Radio Relay League, 1960, pp. 238 & 239.

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