Masthead spinnaker hardware
To add a spinnaker to your inventory, all you'll need at the masthead is a block for the halyard. It needs to have a strong attachment to the mast, and should probably swivel, since the spinnaker can pull in a range of directions and you don't want it to be bending stuff up there. It's also handy to have a swivel if the halyards get tangled from hoisting and dousing on different sides. Something light, but strong, like a Harken, should do. You may need a tang or crane to hang the block from, depending upon what the masthead configuration is-- the block has to be above the forestay. On our Soling (27") we simply ran the halyard through the block and down to cleats at the base of the mast on both sides. For less hefty crew, you may want to have a winch available to help with hoisting.