本文件规定了确定以下各项的方法: -钻机构件上的设计载荷和设计应力；和 -钻机附件和桅杆台阶/支柱的荷载和尺寸； 单体和多体帆船。 它还在附件中给出了评估桅杆台阶/支柱或链板的“既定做法” 注1:如果使用了设计载荷和设计应力，则可以使用其他工程方法。 本文件适用于船体长度LH小于等于24 m的船舶，但也适用于载重线长度小于等于24 m的船舶。 注2:OMI《1966/2005年国际载重线公约》中定义了载重线长度，其小于LH。 该长度还设定了几个国际海事组织公约的下限，即24米。 根据本文件得出的构件尺寸主要适用于休闲船，包括租船。 本文件不适用于仅为专业比赛设计的赛艇。 本文件仅考虑航行时施加的荷载。本文件不考虑其他情况下可能产生的任何荷载。 在本文件中，除非另有规定，否则尺寸单位为（m），面积单位为（m2），质量单位为（kg），力单位为（N），力矩单位为（N m），应力和弹性模量单位为N/mm2（1 N/mm2=1 Mpa）。 除非另有说明，否则在满载准备使用的条件下对该船进行评估。

This document specifies methods for the determination of: — the design loads and design stresses on rig elements; and — the loads and scantlings of rig attachments and mast steps/pillars; on monohull and multihulls sailing craft. It also gives, in Annexes, "established practices" for the assessment of mast steps/pillars or chainplates NOTE 1 Other engineering methods can be used provided the design loads and design stresses are used. This document is applicable to craft with a hull length LH up to 24 m but it can also be applied to craft up to 24 m load line length. NOTE 2 The load line length is defined in the OMI "International Load Lines Convention 1966/2005", it is smaller than LH. This length also sets up, at 24 m, the lower limit of several IMO conventions. Scantlings derived from this document are primarily intended to apply to recreational craft, including charter vessels. This document is not applicable to racing craft designed only for professional racing. This document only considers the loads exerted when sailing. Any loads that may result from other situations are not considered in this document. Throughout this document, and unless otherwise specified, dimensions are in (m), areas in (m2), masses in (kg), forces in (N), moments in (N m), stresses and elastic modulus in N/mm2 (1 N / mm2 = 1 Mpa). Unless otherwise stated, the craft is assessed in fully loaded ready for use condition.