Showing posts with label chainplates. Show all posts
Showing posts with label chainplates. Show all posts

Monday, July 15, 2019

Sabre 28: Forestay failure! ...and replacement

While out on an afternoon sail in a 15 knot breeze, our forestay failed with the genoa up.
CHAOS!  The mast held up by virtue of our lower forward shrouds.  Thank their hearts.
We quickly doused all canvas and as gingerly as we could, motored through the 2 foot chop to our slip.
The next day I rigged a temporary stay, cut the stay, disassembled the Harken furler.
It should have been obvious but under the bolt and washer, it was impossible to see a crack.
After shopping around online for chainplate fabricators.  The prices were high so I ended up ordering 316 stainless from Onlinemetals.com.
So I can leave up the mast, I will work my way around the boat replacing stays as I go.
I increased the thickness of the steel.  This is not needed but why not.
The original chainplates lasted 40 years.

The failed forestay and the new blank.  Notice the increased thickness.
The new forestay ready to be installed.  Safety line attached so I don't lose it in the drink.
The new forestay ready for action.
The new and old lower forward chainplates.  316L !




Wednesday, July 18, 2018

Sabre 28: Standing rigging

Another water intrusion issue with the Sabre was the leaking chainplates.
It has been years since the deck penetrations were serviced and the bedding compound had dried out and shrank.  This allowed water to get to the top of the bulkhead and it started the rot process.
The straps each have 5 bolts through the bulkhead spread out over 12 inches.  The top 2 bolt holes were compromised on both port and starboard.
Here is the chainplate after the repair.
To address this I cut and fitted marine ply sections and epoxied them over the good wood after cutting out the rot and filling the void with thickened epoxy.  It has the added plus of fitting up tight to the heavy molded fiberglass deck house beam.  After the repairs are varnished, the bolts will be reinstalled.
Here are photos of the strengthened bulkheads and the cleaned up and refitted chainplates.
If there is a rigging failure someday, I don't think it will be here.