Everything seems to be the right length, so I'm going to use this boom with very few mods for our 09 season.
The outhaul is 8:1, and very low friction. The Harken 291 makes a great control terminal, as any of the 3 forward crew can adjust it from the rail. The mainsheet turned out better than expected, and will give our trimmer a lot of power in adjustment in big breeze. Here are some photos of it all:
Heres our boom from the gooseneck to the outhaul control cleat.
We tried this last year, and it works great! It's a Tylaska S3 soft shackle, spliced into a tail of 5/32" New England Endura 12, which has been coated in maxijacket to add some UV protection. The gold colored strap off the back is for hanging the boom off the main halyard.
Heres our somewhat unusual mainsheet tackle. Usually the 4:1 dead ends on a fiddle block, but ours jumps up back into the boom, where it joins a hidden 2:1 purchase to make up our fine tune 8:1. 
Heres our mainsheet(s) cleat arrangement, and our vang attachment. We chose to do a single line, spliced together and running through 6 holes in the boom. This spreads the load across a larger area of the boom than the single bolt we had last year. The little "headknocker" is a Harken 291, and controls the fine tune. The big one is a 2145, which is nice since it has an adjustable angle cleat and an automatic ratchet. The black fitted attachments are delrin, although I may change that system to fasten to the boom better.
2 comments:
Dang Kristian that looks great. You can expect to see you outhaul idea stolen in its entirety on Bolero one of these days.
I like the idea for terminating the vang. Is there any issue with chafe on this type of installation?
I bet you can't wait to get back on the water.
Cheers, Bill
The outhaul is pretty open in the class rules save 8:1 max purchase (plenty) so this is one of the few rigging bits on the boat I would do exactly the same way if class rules weren't an issue.
Whenever I do a purchase system, I try and rely most on cascades, and as little as possible on multiple sheave blocks. The difference in friction is considerable.
The vang doesn't chafe much in this type of install, althoug this is the first time i've put it on a Shields. The holes through the boom have really nicely smoothed edges, and even have a little "saddle" filed into the side of the boom for a smooth transition. The line through the boom doesn't move much, so theres no real friction to be concerned with.
Most winters I've been sailing at least once by Feb, so yeah, I'm having fits right now! Niki keeps giving me sad expressions when she seems me staring intently at sailing photos. Definitely sailing our V15 in frostbite season, which is only a month away!
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