To Sign up to become a member of the Nacra 17 class association, go to our membership e-store. As a reminder, both skippers and crews must be members of the class to race in the World Cup, World Championships, or Continental Championships. Sailors will not be able to register for regattas if they have not become members. Membership is 25 euros per season, charged on a calendar year basis. We have added a feature that team leaders, coaches, and other supporters may also sign up to receive direct class communication.