7.3.1 No dimension of the boom spar cross section shall exceed 102mm.

7.3.2 A maximum of 25mm boom spar curvature is permitted.

7.3.3 An outer limit mark not less than 10mm in width shall be placed around the boom spar. The outer point distance shall not exceed 2858mm.

7.3.4 The overall length of boom from the aft edge of the mast spar to outer end of boom shall not exceed 3308mm.

7.3.5 The Boom shall be constructed of materials as required for Masts under

7.1.3. Carbon Fibre Composite material is permitted.