Foam Core Kiteboard

Step 7 Pull in the rocker

The rocker is the deflection from the center of the board to each tip. A larger rocker will keep the nose of the kite board out of the water more but this may come at the cost of up wind performance. Many people build boards without any rocker at all. I used a small 2.5 cm rocker, that is the tip is 2.5cm higher than the center of the board.

Some board also have a small amount of concave. Think of the inside of a waterski. The outside edges on the sides of the board are lower down than the center of the board. Due to the added complexity and lack of necessity a concave was not added to this board.

To pull in the rocker for fiberglassing find a scrap piece of wood that is at least the length of the board. Use Screws to attach the foam to the scrap wood where the screws for the fins would normally pass through. You will have to drill pilot holes through the epoxy. You can probably use the screws for the fins to do this job. If you are using other screws make sure they are smaller than the diameter of those used for the fins. Now wedge pieces of wood between the foam and board to give the desired curve.