Backstay adjusters are a crucial piece of equipment on a sailboat, and there are several types available, including mechanical, hydraulic, and pneumatic systems. They allow you to adjust the tension on the backstay quickly and easily, providing more precise control over the sail’s shape.
One popular type of hydraulic backstay adjuster is the Navtec backstay cylinder. These cylinders use a hydraulic pump to apply pressure to the cylinder, which adjusts the backstay tension. They are highly reliable and efficient, making them a popular choice for high-performance sailboats.
When it comes to backstay purchases, a 4:1 ratio purchase, for example, means that for every pound of force applied, the backstay tension is increased by four pounds. A 16:1 ratio purchase provides an even greater mechanical advantage, increasing backstay tension by sixteen pounds for every pound of force applied.
A 4:1 purchase may be sufficient for smaller boats or lighter wind conditions, while a 16:1 purchase is generally reserved for larger, high-performance sailboats. A 16:1 purchase system provides greater control over the sail’s shape, allowing sailors to adjust the backstay tension to optimize the boat’s performance in varying wind conditions. However, a 16:1 purchase system requires more space and equipment than a 4:1 purchase system, and the additional hardware can add weight to the boat. Ultimately, the choice of purchase ratio depends on the size and performance goals of the boat, as well as the sailor’s preference for ease of use versus precision of control.
So, when do you use your backstay adjuster?
When sailing upwind, tightening the backstay flattens the sail and increases the tension on the forestay, which pulls the mast aft and straightens it. This straightens the lower section of the mast, making it more efficient at supporting the sail’s shape. As the wind increases, tightening the backstay further flattens the sail and depowers it, allowing the boat to maintain control and pointing ability.
In lighter winds or going downwind, loosening the backstay allows the mast to bend more, creating a fuller sail shape and more power. This is especially important when sailing downwind or reaching, as it allows the boat to maintain speed and power.
In summary, backstay adjusters are an essential piece of equipment on any sailboat. Whether you choose a mechanical, hydraulic, or pneumatic system, it’s crucial to have precise control over the backstay tension to optimize your boat’s performance. With options like Navtec backstay cylinders or adding more purchase to your system, there is no excuse not to have a high-performance backstay system on your sailboat.
