Section 5 Rig stepping
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Special Service Craft, July 2022 - Part 3 General Requirements and Constructional Arrangements - Chapter 7 Wind Propulsion Systems - Section 5 Rig stepping

Section 5 Rig stepping

Parent topic: Chapter 7 Wind Propulsion Systems

5.1 General

5.1.1 The rig dressing, i.e. dockside fitting of mast gear, and stepping, i.e. righting of the mast, is to be witnessed by an LR Surveyor.

5.1.2 The transport, stepping and tuning procedures are to be provided by the manufacturer.

5.2 Record of stepping

5.2.1 Two copies of the transport and stepping procedures with confirmation that the dressing and stepping was carried out under LR supervision is to be signed by the Surveyor and the Rigger. One copy is to be placed on board the vessel and the other submitted to LR.

5.2.2 The dock tuning procedure, i.e. step by step tightening of stays and jacking up of the mast, may be carried out without supervision of the Surveyor.

5.2.3 The initial pre-tension applied to the rig is to be measured and recorded for intermediate stages and the final state. These recorded values are to be included in the rig stepping report.

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