The mast swivel leads the line with full articulation towards the trimmer. The swivel is made of glass fibre reinforced composite. It is mainly used for Cunningham, Spinnaker and Gnav etc. The sheave has two optional positions, either for lines coming from above od from below. The mast swivel can be fitted “up-side-down” depending on desired orientation of the cam cleat. The sheave is of ball bearing type.
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