THE SEPARATION POINT = STABILITY

Another very important physical property of a wakeboard concerning fin performance is the separation point on a particular board.

The separation point is where the water breaks away from the board. Ideally this happens at the trailing edge of the board (refer to Figure 1).

There are many variables that come into play that move the separation point forward. When this occurs it can have a huge effect on the performance of the fin. Some variables that could effect the separation point are the amount of rocker in the board, weight of the rider, water conditions, speed of the boat, or the way a rider cuts into the wake.

When the separation point moves forward, air bubbles can get trapped around the fin causing the board to become unstable. This is one of the reasons for the wider base and "blending in" property of CDI fins. The blending in feature does not allow these bubbles to get trapped in the corner created by the board and fin. This results in a more stable ride.

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