CYA Messenger September 2013 | Page 33

Part 4 OTHER REQUIREMENTS WHEN RACING 50.4 Headsails For the purposes of rules 50 and 54 and Appendix G, the difference between a headsail and a spinnaker is that the width of a headsail, measured between the midpoints of its luff and leech, is less than 75% of the length of its foot. A sail tacked down behind the foremost mast is not a headsail. 51 MOVABLE BALLAST All movable ballast, including sails that are not set, shall be properly stowed. Water, dead weight or ballast shall not be moved for the purpose of changing trim or stability. Floorboards, bulkheads, doors, stairs and water tanks shall be left in place and all cabin fixtures kept on board. However, bilge water may be bailed out. 52 MANUAL POWER A boat’s standing rigging, running rigging, spars and movable hull appendages shall be adjusted and operated only by the power provided by the crew. 53 SKIN FRICTION A boat shall not eject or release a substance, such as a polymer, or have specially textured surfaces that could improve the character of the flow of water inside the boundary layer. 54 FORESTAYS AND HEADSAIL TACKS Forestays and headsail tacks, except those of spinnaker staysails when the boat is not close-hauled, shall be attached approximately on a boat’s centreline. 55 TRASH DISPOSAL A competitor shall not intentionally put trash in the water. 29