Marine
Select a block as part of a system, with the application and load path clearly described.
Map the line’s route
Sketch where the line begins, each turning point and where the crew handles or secures it. Include photographs and the rope specification. A block’s role as a turning point or part of a purchase affects the selection conversation. Ask a rigger or the hardware supplier to assess the arrangement rather than choosing a block by appearance alone.
Compare the exact configuration
A product family may contain singles, doubles, triples, ratchets and versions with different attachments. Ronstan’s Series 40 Orbit range illustrates how many configurations sit under one family name. Confirm the exact part number, compatible rope and published working limits for the proposed use. Do not substitute a breaking-load figure for a working-load assessment.
Check handling and attachment
Discuss lead angles, available space and how the fitting connects to the boat or another component. Ask whether the proposed purchase gives the intended handling benefit within the available travel. Include inspection and service access in the layout review. The finished quote should identify the whole arrangement, including attachments, rather than only a collection of blocks.
Your planning checklist
- Sketch the complete line route
- Identify rope and attachment details
- Confirm exact part numbers and working limits
- Review travel, access and maintenance
Sources & further reading
Original MarineBrands buying and planning guidance, informed by these manufacturer and official references. Confirm current specifications for the exact model and Australian version.
This is an editorial guide. Linked brand advertorials are identified separately; no paid sponsorship or manufacturer approval of this guide is claimed.
