When I went to remove all my winches so I could take them home and clean them this past winter, I found a surprise on my primary winches.
|I have removed the nuts from these bolts. Note how the washers have sunk into the plywood..|
That's right... they had no backing plates. just some small washers. Now why is this a big deal? well, if you have ever been sailing close-hauled (the fastest point of sail) in 20 knot winds, you know that some incredible pressure can be applied to the winches when trimming the jib or genoa (the sails up front) to the tune of hundreds, if not, thousands of pounds per square inch. If the winch is not properly backed up, this force, albeit in extreme cases, could possibly rip the winch right out of the rail.
To properly back a winch, you should use a PLATE that distributes the loads across a wider area. Usually these plates are made of stainless steel or Aluminum, and are custom made for your winch or what ever hardware you are backing.
Now, you may recall in my earlier post, that I am a Geek who likes to take things apart. When taking apart some hard drives I had laying around, I removed the platters and wondered if I could use them for anything. Now, hard drive platters are made out Aluminum and look like CDs. Then the light bulb in my head went on! Aluminum plates!
The diameter of my Winches was a bit bigger than platters, but I found that If I cut them in half that I could make them fit. So I taped a four of them together for the big winches (so I basically doubled up the backing plates on my Primary winches) and two for the small winches and cut them in half. Then I marked the holes directly from the winch bases. and while they were still taped together, drilled out the holes on my drill press, and Viola! custom made backing plates, and best of all, they were FREE!
|I taped 4 together before cutting and drilling them|
|Holes for the Large winches all drilled, ready to be inshtalled|
|I used 2 platters for each of the Large Winches for added strength|
|I used one platter for the small winches that are mounted on the roof of the aft cabin. This one is on the Starboard side. There is no rippling of the plate, that is an optical illusion|
|Here is a better angle and light on the Port side winch.|
Till Next time!!