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Understanding the Velocity Triangle in Sailing: A Deep Dive into Apparent and True Wind Dynamics

Explore the intricacies of sailing dynamics with Stephen Bourn's comprehensive guide to the velocity triangle. Discover how boat velocity, apparent wind, and true wind interact to enhance sailing performance. Learn about key concepts such as aero forces, hydro forces, drag angles, and elevation angles that influence a sailboat's efficiency and speed on the water. Whether you're a novice sailor or an experienced mariner, this resource provides essential insights into navigating the complexities of wind dynamics and optimizing sailing strategies.

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Understanding the Velocity Triangle in Sailing: A Deep Dive into Apparent and True Wind Dynamics

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  1. Ultimate Sailing Stephen Bourn 12 July 2005 www.wingbornehydrofoil.com

  2. Velocity triangle Boat velocity Apparent wind angle 30 True course b g Apparent wind True wind

  3. Aero force Hydro force eA - aero drag angle eH - hydro drag angle fA - aero elevation angle fH - hydro elevation angle Air velocity b – apparent wind angle Water velocity Gravity force

  4. eA eH fH fA eIH – projected hydro drag angle b eIA – projected aero drag angle True wind velocity g – true course

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