T&R Bulletin 3-15 (2018) supersedes the existing T&R Bulletin 3-15 (1964).
This updated version of 3-15 has been developed by incorporating ABS and other Class Societies’ requirements based on IACS Unified Requirement A1, Anchoring Equipment, and A3, Anchor Windlass Design and Testing, as well as other International Standards such as ISO 4868. The purpose of this Guide is to provide guidance for the design and testing of marine anchor windlasses; design criteria are intended to cover hydraulic and electric motor driven windlass types, as well as address hybrid systems. Sections in the Guide include specification of equipment and design, as well as shop testing and onboard trial tests. Helpful appendices offer graphical examples of anchor and windlass types, with additional sizing charts and guidance, and an addendum providing additional information specific to the design, construction, and testing of anchor windlass systems onboard U.S. Navy auxiliary and special-purpose ships.