What is a Roach on a Sail?
A roach on a sail is the curve in the leech of a sail, or the trailing edge of the sail. It is also known as the leach curve or sail roach. The roach helps to shape the sail and improve its performance.
The roach helps to create a more aerodynamic sail, which reduces drag and improves efficiency. It also helps to stabilize the sail, reducing fluttering and improving control. The roach also helps to increase the sail's power by increasing the projected area of the sail.
The amount of roach in a sail varies depending on the type of sail and its intended use. Sails that are designed for racing or high-performance sailing typically have more roach than sails that are designed for cruising or recreational sailing.
Common Questions
- What is the purpose of a roach on a sail? To improve aerodynamics, stability, and power.
- What is the difference between roach and fullness? Roach affects the shape of the leech, while fullness affects the shape of the belly.
- How much roach should a sail have? It depends on the type of sail and its intended use.
- Can roach be added to an existing sail? Yes, but it requires specialized knowledge and tools.
- What are some ways to increase roach on a sail? By using a sailmaker to add roach, or by using a sailroach kit.
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