Snatch Blocks

To call snatch blocks "useful" is an understatement. They are quite simply the most practical and versatile pieces of sailing hardware available! Their principal attribute is that they can be opened for a line to be inserted, rather than having to be threaded as conventional blocks need to be. Most snatch blocks feature snap shackles, which add to their convenience by allowing them to be placed anywhere along a line. However, despite their obvious plus-points, it would be a mistake to assume that they are perfect for all jobs. This is a consequence of their compromised design. As a result, they are unsuitable for permanent applications such as jib fairleads, sheeting blocks, or turning blocks for genoas-the load would be too high. Where snatch blocks excel is when adjustments or changes need to be made to the gear permanently in place, or as an extra control device. Some of the uses we recommend these blocks for are:

As a backup genoa lead block. The system involves the use of a second sheet led through the snatch block, releasing the pressure on the actual sheet and allowing the repositioning of the genoa fairlead. Attaching a trunnion snatch block to the toe rail with a short line provides an effective and easy barber haul system. This has the double benefit of allowing the crew to "open the slot" by adjusting the jib leads outwards and forwards in heavy winds, as well as reducing twist while reaching.

The unpredictable nature of spinnaker handling provides the best application for these blocks, as an auxiliary spinnaker lead. For convenience, spinnaker leads are normally positioned at the point of a boat's maximum beam. It is hard for these to be adjusted. The spinnaker blocks are normally as far aft as possible, but this can lead to the spinnaker moving up and down, or the sheets fouling the boom. Using a snatch block allows the crew to bring the sheet down onto the rail in a different position, eliminating these problems.

The ultimate number of uses that these blocks can be put to is impossible to guess. We've seen them used as temporary halyard blocks, as part of the tackle to recover a man overboard, as a bow roller, and even as a temporary repair device on a trapeze system. The only problem they ultimately may have is their need for full articulation to avoid breakage. We recommend that any sailor keeps a number of these indispensable additions handy on every trip - you never know when they'll be useful!