Hydraulically operated winch units
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United States of America Patent
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-
Feb 6, 1990
Grant Date -
N/A
app pub date -
Jun 6, 1988
filing date -
Jun 9, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An aircraft handling system comprises a plurality of hydraulically operated winches, each winch having a wire for connection to the aircraft. Each winch also has a dedicated hydraulic pumpset positioned in proximity thereto. An electrical control unit effects co-operating operation of the winches in order to effect the desired movement and control of the aircraft. The tension in the wire of at least one of said winches is detected, and in response thereto an electrical signal is transmitted to the control unit. An electrical control signal is then transmitted from the control unit to the other winch or winches in order to control the tension in their wires in relation to the wire tension detected in the first winch.
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