The CSA rating system for multihulls was conceived to adapt the well established Texel Rating system to the local requirements of multihull racing in the Caribbean. The formulas and calculations used in our rating system are based on those used successfully for the Texel Rating and its derivatives such as Multihull Dynamics, Multi 2000, Swedish Rating System and OMR among others. We have not attempted to reinvent anything but have merely adjusted the rule to:
- Bring the method of sail area calculation in line with what is already in use by the CSA
- Accommodate yachts with different sizes and types of daggerboards
- Accommodate yachts that use foils to reduce their wetted surface area
- Simplify the formula to directly produce Time Correction Factors that will assist regatta organisers to process results.