HO Coefficient X 69 Slalom Waterski (2012)

Bob LaPoint Design
Step Concave Design
5-Stage Rockerline
Pin Tail Geometry
Blended Carbon & Fiberglass Reinforcements
Polyurethane Foam Core
Syndicate Adjustable Fin Block
Handmade in the U.S.A.
Rider Weight 69 inch 180-225lbs 30-36 MPH

Coefficient X -- eXperimentation with reducing skis' Coefficient of Drag

The single largest difference between the skis of the future and the skis of ten years ago is the amount of physical effort required by the skier to ride them. As water skiing evolves from a fight between boat and equipment to an efficient harmony between man and machine, so must the equipment. The Coefficient X introduces the first major departure from the traditional concave bottom ski of the last 70 years; Step Concave Technology. When a traditional ski moves through the water it drags along with it a layer of water molecules that stick to the bottom of the ski. In the science world, it is known as boundary layer theory. The Step Concave introduces a very small amount of turbulence into the concave, which interrupts the boundary layer, freeing the water molecules and thereby allowing the ski to move through the water with a decreased Coefficient of Drag. The result is a more efficient ski shape that minimizes the amount of physical effort required by the skier so he or she can enjoy longer more efficient ski rides.

The Coefficient X also employs a 7% smaller bevel than the Syndicate A2. This helps to lift the ski out of the water for reduced drag and permits the proper amount of on water slide skiers need to dictate when, where and how aggressively they turn.

The Coefficient X achieves its unparallel stability by utilizing a significantly deeper concave, pintail geometry and 5-Stage rocker line. Each of these design elements holds the ski to the water surface, so the step concave and smaller bevel design can dictate the line between carve and slide for the ultimate slalom course of free skiing line.