Clarification, please.

What boats are eligible for this formal membership and voting privileges? Only the closed class boats? Or does it also include the boats in the F-16 Open Class?

Specifically, is it only the owners of the Stealth F16, the Blade F16 and the Taipan Ff16 that are eligible for membership and voting? Or is it also open to owners of the Taipan 4.9 (with F16 spin) and the Spitfire, both of which are grandfathered into the class but only into the F16 Open Class?