Quote:
Originally Posted by taezow
I don't know what type of sail this is or how to fly it.
It has these two blocks and sheets in the sail bag.
I have a new to me 27 Searunner Tri
Thanks Will
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Yes it's a spinnaker. (Speedoo is wrong on one point: Trimarans don't need spinnaker poles, as they have enough beam to keep the sail open when sheeted to the amas.) Not enough detail in the
images to tell if it's an
asymmetric or symmetric -- the corner with the sailmaker's label is the tack, so the edge leading up to the
head from there would contain a luff
rope or cable if it's
asymmetric.
As to the purpose of the lines -- please post another image that shows more detail about the turning blocks and how they are attached to the two lines with blocks attached. They could be sheets, or they could be used to attach the lower corners if the sail is symmetrical.
You could have two separate sheets or one long mid-attached sheet, and those would lead outside your shrouds to turning blocks on the aft portion of the amas, then lead into the
cockpit optionally through
cleats or stoppers, then to a
cockpit coming
winch used to adjust the sail under load. The head is attached to a separate spinnaker
halyard that exits the front of the
mast above the
genoa halyard.
If
symmetrical the two lines with blocks could be downhauls to attach to the clews and each one would attach at an ama bow with turning blocks leading aft then another turning block leading to the main
hull and cockpit. If
asymmetric the sail will have only one tack and one clew -- the two lines with blocks could be your sheets.