Section 3 Requirements in the Large Yacht Code 3, Section 4.5 and Practical Implementation

3.1.1 The relevant parts of the Code read as follows:

• 4.5 Rigging on Sailing Vessels
• 4.5.1 General
• 4.5.1.1 The condition of the rig should be monitored in accordance with a Maintenance Manual and a planned maintenance schedule. The schedule should include, in particular, regular monitoring of all the gear associated with safe work aloft and on the bowsprit.
• 4.5.2 Masts and Spars and Standing Rigging
• 4.5.2.1 Dimensions and construction materials of masts and spars and dimensions of standing rigging including connection to chain plates should be in accordance with the requirements or recommendations of one of the Classification Societies referred to in 4.3.1.1 or a recognised national or international standard.
• 4.5.2.2 The associated structure for masts and spars (including chainplates, fittings, decks and floors) should be constructed to effectively carry and transmit the forces involved.
• 4.5.2.3 Compliance with 4.5.2.1 and 4.5.2.2 should be confirmed by a design review and approval by one of the Classification Societies (e.g. Rig Design Certificate) which is assigned with the review of the rig.
• 4.5.2.4 The Maintenance Manual provided by the mast manufacturer should be reviewed and approved by the Classification Society which is assigned to review the rig design.
• 4.5.2.5 A physical survey on the rig stepping procedure and the rig behaviour during sea trials is to be carried out by or on behalf of the Classification Society that is involved with the classification of the vessel’s hull.
• 4.5.2.6 Annual surveys on the vessel should include reviewing records and history of rig maintenance measures against the specifications provided by the maintenance manual.

3.2.1 The requirements of the Code would imply that:

1. For the dimensions of the masts, spars and standing rigging the Requirements or Recommendations of one of the Classification Societies are adhered to, or a recognised International Standard.
2. Certification will be based on LR’s recommendation for the dimensions of masts, spars and standing rigging.
3. The construction materials are in compliance with LR Rules or a recognised International Standard. For most materials such standards exist. LR approved materials may be used.
4. The code does not require the rig to be built under survey, but requires the stepping procedure and the behaviour at sea to be witnessed. Building under survey is an option.
5. Maintenance must be planned and documented.

3.2.2 The procedure in this document gives the steps the manufacturer can take to give evidence that the rig is designed and built in accordance with its stipulations, and propose the rig for eligibility for certification.