Thursday, May 7, 2009

Flying Scot Centerboard Repair, part 3

We left off a while back (a long while) in part 2 with the fiberglass and epoxy work to return the board to its original shape. Here is a link to Centerboard Repair part 1. Epoxy was used to provide maximum strength since the boards are subject to side loads and an occasional grounding.

After we peeled the wax paper we are ready to sand and fill to get back to a smooth surface. Clicking on the photos will enlarge them.


The leading edge is roughly back to the designed shape and the black dots are where the edges of the lead are located.


The photos above and below were taken after some sanding and filling. The filler is the blueish-green stuff, also know as 3m Marine filler. Pretty good two part filler than sets up quickly and can be sanded in about 30 - 40 minutes.



Sometime a little before this point I weighed the board again and of course it was too light, about 3 lbs as I recall. So the remedy was to cast some lead into the shape similar to a hockey puck which was epoxied into a hole in the board. Too bad I forgot to take photos of that part of the job but that is true with many of my projects. Anyway more glassing, sanding and fairing and it was ready for paint. I think the final weight was 102 or 103 lbs, within the legal range.

The last step was to paint it, for this we used 4 coats (sprayed) of VC performance epoxy. An hour or so of wet sanding and the job is done.

The last two photos are of the finished product taken from a bad angle with bad light, too far away, etc.




The stuff at the bottom is a towel attached with masking tape to preserve the delicate lower edge. With the weight of the board it doesn't take too much of an "oops" to damage the lower edge. The End.

3 comments:

Anonymous said...

do you sail with the towel on the board?

Unknown said...
This comment has been removed by the author.
Unknown said...

I don't but I put it on whenever my friends borrow the boat.