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Noviesailor

Farr 30 Adjustable Mast Butt

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I'm looking to replace my existing mast butt (shown below) with something that allows me to adjust it either on the dock or out on the race course (ideally). As you can see, the hole spacings are about an inch or so apart, so I can go forward or aft 1" from my current position. However, I need to take all the load off of the shrouds in order to do so, which isn't workable.

The J24 I raced had an adjustable mast butt that slides back and forth over a stainless plate, with a turnbuckle to move it and four screws to lock it in place. This gave infinite adjustability and it could be adjusted when tensioned. Has anyone done something similar to this in a Farr 30 or similar sportboat?

Any pointers would be much appreciated.

59f7c229af10b_File2017-10-3092000PM-Copy.thumb.jpeg.f9b6d0bae0f957df1695970e922f95b7.jpeg

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aren't the swept spreaders going to make this a pretty tall order?

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On 11/1/2017 at 3:57 PM, ryley said:

aren't the swept spreaders going to make this a pretty tall order?

I'm not sure why the swept spreaders makes it a taller order than straight spreaders...I've only dealt with adjustable mast butts on other swept spreader rigs.

I've been looking to the C&C 30 OD class for inspiration and fou nd this:

c&c 30 mast butt adjuster - Copy (2).PNG

c&c 30 mast butt adjuster - Copy.PNG

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On 2017-11-06 at 12:13 AM, pasta514 said:

solid stainless roller on a matching curved base. Just what the Dr. ordered.

1-DSC07645.JPG

That looks awesome. Custom made? Can you send more pics?

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On 11/11/2017 at 10:39 AM, Noviesailor said:

That looks awesome. Custom made? Can you send more pics?

In 1983 photos were not as cheap or common as now. Mast was pinned at the deck. The boat had stainless floor grid with chainplates directly connected. The mast butt roller track was bolted to the frames, as did the engine. All welded at night in a plumbing shop. The machining was done on the weekends by a master tool & die maker. All was 'free' ballast.

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100_1792-001.JPG

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