The intent of the CBH rule is to comply with World Sailing's Equipment Rule of Sailing for the measurements processes. All the measurements described are maximum boundaries except the displacement which is a minimum weight. Class Associations, manufacturers and sports boat owners must use an Australian Sailing authorised measurer to verify measurements and data.

Key things to note when preparing the sports boat for measuremet include:

• Measurements will not include removable batteries, anchors and chain, and cooking appliances (unless required under the Class Rules). No food, clothing, stores, toolkits life jackets or additional ballast, etc. shall be aboard. Fuel and water tanks shall be empty.
• Spinnaker poles shall be in the normal stowage position.
• Sails are not included in the MASS of the vessel.
• Centreboards, swing keels and drop keels shall be in the fully lowered position. 
• If the yacht is powered by an outboard motor, it shall be fitted in the operating position. 
• The yacht shall be rigged completely and ready to sail with the mast and boom in place
• Major hull measurements may be taken ashore, with the yacht approximately level. 
• The longitudinal trim should be established from freeboard measurements taken from the yacht afloat in measurement trim.

In addition to undertaking measurements, which are the basis of the CBH rating, checking the measurements against those contained in the class rules / supplementary measurement information questionnaire shall be required. 

The measurement process can be read here.
For more information about CBH click here.

By Glen Stanaway