Masthead Rig for Spinnaker

[kenstrom]

I have a 36MKII tall rig with std. set up for two jib halyards. I haven't been to the top of my mast yet, but it appears the two halyard pulleys are right next to each other. I plan to fly and asym spinnaker and gybe the sail around the front of the furled jib. I'm concerned that if I use the extra jib halyard I already have, it may cause chaffing between the spinn halyard and the furled jib since they are right next to each other and the spinn sail/halyard will rub on top of the furled jib depending on course. I read in the recent MAINSHEET Catalina 400 segment that it is recommended to add a separate block at the top of the masthead. Not sure if this was attached to std. masthead or if a special extension plate was added?

Anyone have a detailed sketch or drawing of the std. masthead and asttachment points for a C36MKII tall rig? I couldn't find one in my manual.

Anyone have experience flying an asym spinnaker using the second/extra jib halyard? Any problems or chaffing? Did you gybe the asym spinn behind or in front of the furled jib sail?

Anyone have experience adding an additional block for a spinnaker halyard on the masthead? Did it require additional extension or plate to attach the block? Where you able to run halyard down through mast to avoid halyard slap, etc., or was halyard run outside of mast?

Thanks for any help...................

[Nimue]

This is the masthead on my older short rig boat but the principle is the same.

The block out in front of the forestay is for the spin halyard. The halyard on my boat goes into the mast about 3' down from the top, but it could be rigged externally too.

The trick is to do all this without having it foul the top swivel of your furler, which mine did when this pic was taken. Among other things the hoop that this spinnaker block is mounted on should be offset as for to one side as you can so that the tail of the spin halyard doesn't drag across the forestay or the swivel.

[deising]

You DO NOT want to use the spare jib halyard for the spinnaker.

As posted above, a swivel block on the masthead bail is the way to go. I ran my spin halyard down through the mast ports and added a cleat on the port side.

For gybing, you can either douse the spinnaker with a sock, then move it to the other side and redeploy it. Or, you can use extra long sheets like I do and let it fly in front of the forestay as you gybe.

I hope you enjoy flying your spinnaker as much as we do.