Posted by brian johnson on
URL: https://forum.seahawk17.org.uk/Jib-furling-tp4024847p4024854.html

The block at the top of the alloy pole is there for two reasons:

1  to allow you to change the sail if for example you want to replace a standard jib with a genoa.

2 to be able to tension the sail luff. This is very important as the straighter the luff the more power you get from the sail. The jib halyard (not a sheet) should attach to a small cleat at the base of the alloy pole to allow you to adjust the sail tension.

The pole should rotate around the forestay and should have a fitting at the top (normally a collar) that allows it to do so.