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Sunfish Mast Attachment And Rig For Using A Smaller Sail
Category: Sunfish, small boat, sail, sailboat
Problem: The Sunfish sail is quite large, particularly for someone who is just learning to sail, or for someone who just wants to go out and ghost along without having to sail hard. Or for an older person whose reaction times aren’t what they used to be. Or for someone who wants to go out even when it is a little more gusty than usual. I came by a smaller sail for a Sunflower sailboat that is about 55 square feet instead of 75 square feet. However, it’s not designed to fit around a mast the thickness of the one on the Sunfish so the attachment around the mast requires modification as well as the way the main halyard is configured. If it is attached in a normal way, run up over the head of the mast, it will either be way too high or drooping down and not very effective.
Action: I modified the way the boom is attached to the mast with a quick release line and then ran a line around the mast with a block attached to it that the main halyard is run through. In order to make this a quick change rig, if that block is a snatch block, it can be opened and the line run through it without having to take the mast out of the sunfish and rethread it through all of the other locations. This block with the line around the mast will hold the top boom close to the mast. However, I have found it useful to have a downhaul on this snatch block rig to hold it in the exact position that I want the top boom to be in against the mast. In order to have the downhaul in place, either a turning block at the base of the mast is required, with a cleat in the cockpit, or a cleat on the front of the mast, near the base is required. That can be affixed with a hose clamp. Result: It works great!
When idea was conceived: 10/24/2013 – 10/26/2013
How much time it took to develop: 1 1/2 hours
How much money it took to develop: $40.00
Current status: Available for use
Since it was originally done: