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This is the Rocna Anchors knowledge base project

A collection of information and material relating to anchors, accessories, and using them
– made available to you by Rocna Anchors and partners.

Either search the knowledge base using the search box on the left, or you can browse articles organized into the below categories.

Anchors
Rocna anchors Anchor sizing: philosophy & rationale behind official Rocna recommendations. Rocna bow compatibility on a range of vessels; photos & case studies. Common fit challenges with the Rocna, and suggested solutions. Recommendations for designing the ideal bow roller assembly. Advice regarding anchor retainment – lashing, pins, etc. A collection of selected independent feedback on the Rocna, with links to external content.	General Selecting galvanized, stainless, or aluminium for metal and material type. An overview of Lloyd's, RINA, ABS, et al anchor classification & certification. Summaries and analyses of independent comparison testing involving the Rocna.
Accessories
Rode Chain: selecting grade and size, and understanding terms from 'WLL' and 'calibrated' to 'high-test' and 'high tensile'. Rope: choosing anchor rode lays and materials with a mind to performance, durability, and chafe resistance. Using dedicated snubbers for shock absorption. A concise guide to optimizing rode for performance and practicality. Connectors Overviews and recommendations for connecting the rode to the anchor, from a look at the ideal shackles for use with anchors, to the question of swivels and righting swivels.	On deck Back on the boat are many crucial parts of any anchoring system, from the windlass to chain stops, concerns and solutions regarding chafe protection for rope, and counting chain & rode deployed. Advice on bow rollers is provided in the Anchors section. Other accessories Use a buoyed retrieval line if retrieval is likely to be difficult. Kellets and alternatives are often misused. Riding sails can be helpful on some yachts. Lights and day-shapes as anchor signals may be mandatory.
Anchoring
The Rocna User's Guide may be of interest. Questions concerning setting and retrieval of the Rocna are common. Some advice concerning setting in difficult bottom types, and retrieval if the anchor is holding a little too well. A popular debate: scope vs catenary. Long rode lengths, or heavy chain? The answers are out there. Rigging more than one anchor can be very helpful or necessary, albeit introducing complications.
Partners section
A collection of material and information for Rocna resellers and partners. You need to be logged in with a user account to view this section. To access the Partners section, click here: Partners:Main