Dave Proctor, on 14th December 2023, discussed the benefits of replacing steel wire with composite fibre stays in standing rigging. He drew his insights from observing various yacht races and challenges around the globe. With an increasing number of individuals pursuing the dream of ocean-crossing and circumnavigation, the significance of equipping one’s boat with the right materials cannot be overstated.
The standing rigging of ocean racing yachts was a focal point of his discussion. He referred to the Golden Globe Race (GGR) and the Oceans Race, both of which concluded earlier this year, as well as the ongoing Clipper Round the World Race and the recently started Global Solo Challenge (GSC).
Proctor expressed his fascination with the extreme conditions these yachts, their rigs, and sailors endure, particularly in the Southern Ocean. The high dropout rates due to catastrophic rigging failures leading to dismasting and other issues were highlighted. He cited the GGR as a prime example, where only three out of sixteen boats managed to complete the course without stopping for repairs.
Proctor also acknowledged the immense preparatory work undertaken by GSC entrants in readying their second-hand yachts for the challenge. By examining these races and the associated preparation, failures, and successes, he believes we can gain a better understanding of the stresses yachts undergo and how to enhance the performance of all sailing hardware, including navigation equipment, sails, and both running and standing rigging.
While Proctor has no immediate plans to venture into the Southern Ocean, he is keenly observing advancements in standing rigging, particularly regarding safety and benefits. He noted that the potential cost savings and ease of rigging achievable by transitioning from steel wire stays, especially the backstay, to composite materials are quite remarkable.
One of the key questions he addressed was whether composite standing rigging is lighter. Standing rigging contributes significantly to a boat’s weight, so the primary advantage of switching to composite material is weight reduction. This is not merely a speed-enhancing finesse, but primarily a stability issue.
Naval Architects often state that for every additional kilogram of weight at the masthead, between 7 and 10 kilograms of ballast are needed to maintain the same stability. Therefore, reducing weight in your standing rigging will lower your boat’s centre of gravity, enhancing your boat’s stability and overall handling. It will also improve your yacht’s self-righting ability and even decrease your yacht’s roll.
