Course to Steer - Allowing for leeway
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- Опубликовано: 1 окт 2024
- This video is designed to complement the content of this page - www.pzsc.org.uk/shorebased/coursetosteer/
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Have a look towards the bottom of this page www.pzsc.org.uk/shorebased/content/chartwork_cts.html - there is a page of explanation with each of our videos found at www.pzsc.org.uk/shorebased
Hope this helps
Hi. It’s me again with another question: why did you factor in the leeway (-5°) at this initial stage of the calculation giving you 059°T? Surely the true course does not have leeway factored in? I would have thought that we add 7° variation to the true course of 064°T giving us 071° magnetic. And then after this, the leeway is subtracted from the magnetic course giving us a CTS of 066°(C) given that there is zero deviation? So, you and I both end up with the same CTS in this case, but our course in magnetic is different. Is this important? What for? Thanks!
Thank you for the training videos. I am studying for Day Skipper theory and these lessons have been invaluable in getting my head around Course to Steer and other chart matters. Thank you so much.
Thank you for the comment. Happy studying
I’ve just thought about my question in my previous post again. Surely the very definition of a magnetic course is the true course with the variation factored in. It seems to me that no definition of a true course includes leeway? Thanks for your help.
Variation 7° W = -7° you should decrement 059°+ (- 7°) = 52° E
Pawel Polinski see the full notes here pzsc.org.uk/shorebased/coursetosteer/
I cant find notes on leeway?
Why did you choose 5 degrees of leeway? Is there a formula or a rule-of-thumb for deciding on the amount of leeway? Thanks!
Francis Montocchio Thanks for the comment - this May help: pzsc.org.uk/shorebased/leeway/
@@pzsc Thanks for your speedy reply! I knew about measuring the wake angle, but I was wondering if there was a guide to approximation according to wind strength, hull type and point of sail? Cheers!
Francis Montocchio No hard and fast rule other than old slower boats likely to make more leeway. The bearing allows you to build a picture with experience.
@@pzsc Thanks!