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Guy (red arrow), controlling the spinnaker pole.
Guy (red arrow), controlling the spinnaker pole.

A guy (probably from Dutch gei, "brail") is a line (rope) attached to and intended to control the end of a spar on a sailboat. On a modern sloop-rigged sailboat with a symmetric spinnaker, the spinnaker pole is the spar most commonly controlled by one or more guys.

Types

There are two primary types of guys used to control a spinnaker pole:

See also