AMYA Star 45 Class Rules, 2006, Mast and Boom
3.1 Masts shall be made of wood or aluminum. Swing rigs, rotating and permanently bent masts are prohibited.
3.2 Masts shall not exceed 3/4 inches square when measured at the thickest point of the mast. Maximum mast height shall be 70" when measured from the deck, inclusive of the crane. Rotating wind indicators and burgee staffs are not included provided the backstay is not attached to them in order to circumvent the 70" maximum mast height specification.
4.0 BOOMS:
4.1 The main boom and jib club shall not exceed 5/8" when measured at the thickest point. Booms and jib clubs shall be constructed of wood, aluminum and/or fiberglass.