Proposed 2020 Rule Change

[Forum Administrator]

Boom -
The boom may be aluminium or wood and shall be capable of passing through a ring of 80mm diameter if all fittings were removed. It shall not be tapered.

This is an increase from 70mm diameter.

Reason for change - Previous supplier of booms is unreliable. The increase will give the opportunity to purchase off the shelf boom such as boom for 420. No perceived performance advantage with increased diameter of boom from existing booms in the fleet.

Centreboard -
The foils may be constructed of any material but a minimum weight of 2.7kgs for the centreboard and 1.2kgs for the rudder blade must be adhered to. If the foils are found to be underweight they shall have a corrector weight permanently attached to the top of the foil.

This is a decrease in weight for the centreboard from 3.2kg.

Reason for change - 2.7kg is easily achievable when building a centreboard from typical soft wood such as kauri, yellow cedar, red cedar and pine with a fibreglass layer to outside. Most centreboards in the fleet have at least 500 grams of lead in the top. This causes centreboards to be off balance to handle.

[David Giles]

I am happy to increase the boom diameter but am against lightening the centre board as it will be quite a job for every body with a heavier board to lighten them to the new weight, much easier to bring new boards up to weight.

[Steve]

I dont think it is correct that most center boards are below the minimum weight. All foils where weighed originally and the average weight of the center boards was 3.2kg.
Two of the center boards that i have weigh over 3.2kg and i know of others of the same weight. Please keep the rule as it is.