Can anyone identify this part on my foredeck - SailNet Community
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post #1 of 14 Old 11-19-2011 Thread Starter
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Can anyone identify this part on my foredeck

I have a Coronado 27 with an unusual piece of equipment mounted on my foredeck. No one I have shown it to knows what it is. Can anyone here help me?
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post #2 of 14 Old 11-19-2011
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Inner forestay attachment or a storm sail tack point? Just guesses.


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post #3 of 14 Old 11-19-2011
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self tacking jib boom attachment

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post #4 of 14 Old 11-19-2011
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Maybe a fitting for a staysail boom? A cutter-rigged 27!
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post #5 of 14 Old 11-20-2011
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it is not for a cutter rig, I know I use to sail one just like that one. it is a goose neck for a self tacking jib boom. the boom attaches to the goose neck. the lower eye is for the sheet block that leads the sheet aft. with the boom pivot aft of the sail tack the further in you pull the boom the tighter the sail is stretched along the foot of the sail for sailing up wind, as you let off on the sheet the sail becomes more curved at the foot and the sail can be used on a reach or a run. it can even be used wing and wing by a single handed sailor. by being mounted aft of the bow pulpit the jib boom will go out on a run without hitting the bow pulpit

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post #6 of 14 Old 11-20-2011
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Drawing to determine location of pedestal and length of jib-boom for a trackless, semi-self-tending jib. You need to know the jib's chord length at your tightest sheeting angle and the chord length at the widest sheeting angle that you intend to tack through. The clew is located at C1 when sailing deeper and the sail is trimmed as full as as the design allows, with the chord at the minimum designed length. The clew is located at C2 when close hauled, and the draft is shallow, with the chord at its maximum designed length. To determine dimensions for deck layout: Draw a line connecting C1 and C2, and find the midpoint, B1. Draw a line perpendicular to C1-C2 thru the midpoint, B1. The pedestal should be located where this line intersects the centerline of the boat(B2). The length of the jib boom is the distance between B2 and C2, which is the same distance as B2 to C1. When you change course from a deep reach to a close haul, trim the boom tighter with the jib sheets on both sides. The chord will increase, and the draft will get shallower. Thereafter, as long as your tacks are symmetrical, the jib will self-tack and be well trimmed. (You need a block outboard about 2/3 of the way back from the front of the club for leading the jib sheet. You trim the jib with the UPWIND sheet.) A more complete discussion of the sheeting can be found in Brion Toss' book _The Rigger's Apprentice_.
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post #7 of 14 Old 11-20-2011
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Quote:
Originally Posted by overbored View Post
self tacking jib boom attachment
+1
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post #8 of 14 Old 11-20-2011
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Sure, Overboard is right. I call mine a "club foot". You may notice them frequently on Island Packets with a curved forward end,- same thing. Take care and joy, Aythya crew
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post #9 of 14 Old 11-20-2011
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Yup, Overboard has nailed it. Its a clubfoot deck attachment. Great for self tacking jibs.
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post #10 of 14 Old 11-20-2011
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Quote:
Originally Posted by overbored View Post
self tacking jib boom attachment
I agree.


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Hey, can one of you guys pass me a crab?


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