The RG65 Class is an “Open Class” which, in simple terms, means that anything that is not specifically prohibited in the rules is allowed.
The rules are managed by the RG65 International Class Association and were revised in March 2022 and comprise the following documents.
Class Rules: RG65-Rules-2022-version-2022.1
Sail Measurement Spreadsheet: RG65_Sail_Area_Calculation (2022.5.2)
Certification Template: 2022 RG65 Measurement Declaration (v0.6)
Archive of Previous Rules – HERE