Communications: electrical – Selective – Path selection
Patent
1973-06-28
1976-06-29
Farley, Richard A.
Communications: electrical
Selective
Path selection
340 3T, 340 6R, G08B 1300
Patent
active
039672328
ABSTRACT:
The invention discloses a method of detecting underwater objects and an apparatus therefor, and is particularly concerned with such methods and apparatus for use in conjunction with a helicopter.
A buoyant structure houses a sonar body in a stowed position, and is suspended on a cable from a releasable attachment on a helicopter. Means are provided for lowering and raising the buoyant structure relative to the helicopter and for lowering and raising the sonar body relative to the buoyant structure.
The cable is provided with flotation and sea anchor means to deploy the cable across the water surface when it is released from the helicopter during one stage of operation, means being provided on the helicopter to recover the cable from the water to facilitate recovery of the apparatus.
REFERENCES:
patent: 2422337 (1947-06-01), Chilowsky
patent: 3159806 (1964-12-01), Piasecki
patent: 3786403 (1974-01-01), Will et al.
Mills Noel
Warley Geoffrey Peter
Farley Richard A.
Westland Aircraft Limited
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