The Offshore Voyaging Reference Site

Preserving Mast Tune Hack

I spent a lot of the summer getting the mast tune exactly the way I wanted it on our J/109. Now it’s time to decommission and I don’t want to lose that.

So I carefully measured the distance between the threaded studs in the turnbuckles for the shrouds and backstay.

To make this work you need accurate calipers, and digital ones make it way easier and faster.

Thanks to member Dick for this tip.

As to getting the tune right in the first place, we have four step-by-step instruction chapters on that.

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