Authorisation for Class Rule Change – Wingsails
Permission from the IMCA is hereby given for the following class rule changes to be implemented for the 2010-11 Australian Championship and 2011 World Championship only.
The following new class rule is added for this event only:
9.12 If the rig is a wing sail it is to be measured in its entirety according to the ISAF Guide to Sail Area Calculation with the total sail area being not greater than 8.00 m2. Rule 8. Spars is not valid for wing sails. The leading edge length of the wing shall not exceed 5185 mm. Fittings and structure that are for the sole purpose of attaching or retaining the wing to the boat shall be disregarded for the purpose of sail area measurement provided they are no bigger than is reasonably required for that purpose.
The following new definition is added to the class rules for this event only:
Definition:
Wing means a rigid or semi-rigid structure (encompassing a traditional yacht’s mast and mainsail structures), similar to an aircraft wing fixed approximately vertically to provide propulsion from the wind.
This rule change is issued by the IMCA Executive Committee, under the authority of the IMCA Council of Presidents and with the approval of the International Sailing Federation under RRS87 and ISAF Regulation 26.5(f).
Mark Robinson
IMCA President