Polar plot - true wind - apparent wind explained for upwind directions

[@ArmyPig007]

Very clear explanation. It's pretty clear how to jump from here to a set of target boat speeds and AWAs at different wind speeds. Thanks Ed

[@NauticEd]

thanks for the kudos

[@MD-BLUE]

Great video, thanks. Can you comment on how to read the apparent wind speed, and not just the angle, from the wind triangles?

[@NauticEd]

The length of the apparent wind vector is the speed.

[@MD-BLUE]

@@NauticEd The length measured by the concentric circles for boat speed?

[@NauticEd]

yes@@MD-BLUE

[@DSilverwood]

Thanks for putting up this video. I am trying to digest the concept of VMG and this helps relate it to apparent wind.

[@NauticEd]

Glad to help

[@NauticEd]

Yes. The apparent wind is the only wind you and the boat feel. Just like putting your hand out the window of a moving car.

[@MurkyDregs]

When I put my face into the wind, close my eyes, and turn my head to "equalize" the wind sound in my ears, I'm facing into the apparent wind?

[@NauticEd]

Yes - you only feel the true wind if the boat was stopped. Think of a car tearing down a highway. Take the free NauticEd Basic Sail Trim course. www.nauticed.org/sailing-courses/view/basic-sail-trim

[@fredbarnes196]

This boat speed upwind goes from 5kts to 8kts when the breeze goes from 10kt to 20 kts true? What kind of boat is it?

[@NauticEd]

This is a fictitious boat - however, the numbers are realistic based on many boat's performance numbers.