Variable depth sonar line handling system

Details Variable depth sonar line handling system Variable depth sonar line handling system

1987-02-18

1988-06-28

Kyle, Deborah L.

Communications, electrical: acoustic wave systems and devices

Miscellaneous

367106, 114254, 114268, 405154, 254264, G01S 968, B63B 2166

Patent

active

047544422

ABSTRACT:
A variable depth towed sonar line handling system is arranged to provide a level wind of the sonar cable onto a cable winding drum without significant lateral deflection of the cable. The system includes a boom with sheaves at the inboard and outboard ends and an inboard winch with a cable winding drum. The winch is mounted for axial movement past the boom and is translated axially in synchronism with its rotation so that the fleet angle of the cable remains constant. In preferred embodiments, the winch is located beside the boom and translates fore and aft. This allows the cable to be taken off along the pivot axis of the boom, eliminating cable excursion through the sheaves in boom bobbing. Other features include a fairleading saddle and a combined passive and active shock absorbing system.

REFERENCES:
patent: 2180354 (1939-11-01), Frazier
patent: 3401660 (1968-09-01), Strange et al.
patent: 3966171 (1976-06-01), Hale
patent: 4080920 (1978-03-01), Berthet et al.
patent: 4170187 (1979-10-01), Schirtzinger
patent: 4455961 (1984-06-01), Hansen et al.
patent: 4480574 (1984-11-01), Bertrams
patent: 4597352 (1986-07-01), Nominton

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