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Magnetism & Headings

ATPL 061 - General Navigation

Compass355°+ Dev E
=
Magnetic360°+ Var W
=
True350°
Mnemonic: "Cadbury Dairy Milk Very Tasty"
True Heading (Tv)
350°
Variation (V)
-10°
West (-)
Deviation (D)
5°
East (+)
TN
MN
CN

True North is fixed up. Magnetic North deviates by Variation. Compass North deviates further by Deviation.