Finn

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All North Finn sails are tailored to your individual mast. Follow the steps below to measure your mast deflection. If you have any questions about this measurement process please contact our Finn experts at North Sails.

For your convenience, print this page and fill out the following tables with the measures of your mast.  

Step 1: Support the mast with the tip at a height which will allow the tip of the mast not to hit the ground when the weight is placed on it. Fix in place at the butt to allow to rest on the collar as it holds by the mast step and deck of the boat. Mark the point A. See picture below.

Step 2: Place the weight (12 kg Sideways / Fore & Aft) on the tip of the mast at the measurement band. Mark the point B for sideways and fore&aft.

Step 3: Take a taught string from the top of the bottom measurement band (D) to the bottom of the top one (C).

Step 4: Measure the distance in millimeters between the string and the mast (Sideways and Fore&Aft) in every 1/4 of the distance CD.

 

For more information on Finn sails, contact the North Finn experts.