Bulging Dagger Boards

Kevin Keller · Post by **Kevin Keller** » March 30th, 2008, 5:02 pm

I have 4 dagger boards for my older SC-20. Each one of them has bulged out in certain areas along its length. They have done so to the point that they will not even fit all the way down a cleaned up dagger well (without carpet).

If I take a straight edge to the boards you can see a definite bulge on both sides. I have ground the bulges down and to make it straight I go through the out layers of fiberglass almost to the core, if that makes sense.

Each end and parts of the boards fit fine except for the bulges.

I don't believe any water has gotten inside the boards.

Is this a common phenomena?

Post by **Matt Haberman** » March 30th, 2008, 5:58 pm

Kevin,

I am guessing your daggerboards are pretty old. This was not that uncommon in the old boards and rudders. The process that was used at that time did not allow all of the gas to escape when pouring the foam core. What would happen is there would be trapped gas bubbles in the board and when the board or rudder was exposed to elevated temperatures (read sitting on the beach, trunk of car, etc) the bubble would expand and bulge like you see in your boards.

Kevin Keller · Post by **Kevin Keller** » March 30th, 2008, 6:07 pm

Thanks for the info.

I am going to try to repair them if it is not too much of a pain. Can you email me to let me know the ballpark price of new ones?

Kevin

Kevin Keller · Post by **Kevin Keller** » March 30th, 2008, 6:17 pm

Are mine still under warranty?