Asymetric rigging basics:
1. Halyard is mounted just above and forward of the genny halyard. (My understanding is that a fractional rig is not designed to carry the forward force of the halyard at the masthead.) This could be a fixed bale mounted on the mast above the genny halyard. The easiest way is to run the halyard outside the mast to be fastened at the mast. When not in use, the shackle that fastens to the top of the asymmetric spin is fastened at the same place on the mast.
2. Tack line. (on the forward bottom corner of the sail.) The tack line can be rigged around the forward, windward side of the bow pulpit then down to the deck. Ours hooks onto the toe rail which runs up to the bow. It could also be rigged to a bow cleat after going around the pulpit.
3. The Sheet goes to a snap block on the stern, then forward to the genny sheet winch. You need a snap shackle on both sides of the stern to handle flying the asymmetric on either tack.
We bought our asymmetric sail from a local sailmaker. He and his rigger partner worked with us to get the details right on our masthead rigged h27. The Asymmetric is a great sail. It allows us to leave the engine off when we are cruising on a reach in light winds. This is one of the key reasons to work with a local sail loft if you have one, even if their prices are a little higher than a mail-order loft.
Below is a more detailed picture of us flying our asymetric. You can see the tack line and sheet in it.
Fair winds and following seas!
