Magnetic Variation

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How to calculate magnetic variation.
  1. Polka Sailing
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Комментарии
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Thank you for this explanation! You find so much other rubbish online that is not clear!

HALO
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one the best (simplest) explanations on this subject & easiest to understand, than other unnecessarily complicated videos, thus deserves more views/likes. Thanks to the Tutor for this.

elhijodelmar
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Bravo captain!!! Your very specific and very good explanation;)) thanks

georgekonstantinou
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This is the most clear explanation of magnetic variation I have found on YouTube. However, I’d appreciate if you could explain to me how you account for a negative variation, ie -1 degree west. Thank you!

adventure.cam.
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Can you detail the calculation of 7•20’ - 1•44’ ?

depouillementpersonnel
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104 divided by 60 is 1.73. How did you get 1.44?

pistoleropr
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My charts looks a little different. it says

"Variation 0° 25' W (2016) Decreasing about 9' annually"

Does it mean that magnetic north is at 70°W? Or does that mean that magentic north is at 20° E?

Or do I have to transfer the minutes to degrees first? It just dawned on me that it also could mean that the 70' W could be 1° 10'W, ergo 1°W?
That is quite difficult to wrap my head around.

obiwanfisher
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How do you do the calculation converting 104 minutes to 1 degree 44 minutes?

jtl
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Question: once I work out my variation and the magnetic bearing then creates a cross track error do have to alter my true course or just ignore my magnetic bearing as it will actually end up where my true bearing was? Cheers!

SCARTHYBOY
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Any body says pls why they is subtracting

rajasekeran
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I can't understand how it's 44 minutes and not four minutes...
What if it was 144 minutes, what would that be, doesn't make sense to me given it says 104, so 1 degree, four minutes. I don't get it.

YTviewer