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  • This training video will help you to understand the different points of sailing that a sailing

  • boat can achieve, and the dynamics of the wind on your boat. In short what makes your

  • boat move forwards.

  • Sails do not work if you point the boat straight at the wind, they simply flap. The sail will

  • only work if it sits at an angle of more than 45 degrees to where the wind is blowing from.

  • The area where sails don’t work is called the no go zone.

  • You can sail in any other direction apart from this zone. Any point of sailing where

  • the boat has the wind on its left, is called port tack. And any point of sailing where

  • the wind is coming from the right hand side, is called starboard tack.

  • It’s very important to have an understanding of where the wind is blowing from, and is

  • fundamental to everything that you will do in the boat.

  • To help you, you can use a masthead burgee which will point towards the wind.

  • Flags ashore are another indicator.

  • Ripples on the water also blow from where the wind is coming from.

  • A flapping sail works like a flag and will lie in the same direction that the wind is

  • blowing from.

  • It’s useful to understand how a sail works. If you sail with the wind behind you, it’s

  • easy to see what happens, the wind simply pushes you forwards, but how does a boat sail

  • across or towards the wind like this?

  • Here we see a cross section of a mainsail, the aerodynamics of a sail work in a similar

  • way to an aircraft wing. The air travelling across the outside edge generates lift, which

  • will blow the boat sideways.

  • By pushing down the centreboard to suit the point of sailing, the sideways slip is reduced

  • and the boat drives forwards through

  • the water.

This training video will help you to understand the different points of sailing that a sailing

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B1 中級

如何航行 - 航行要點 - 第1部分的5:簡介 (How to sail - Points of Sail - Part 1 of 5: Introduction)

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    fiona51 發佈於 2021 年 01 月 14 日
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