Term
|
Definition
Advantage: Aligns to True North
Disadvantage: Lose orientation as the Earth Rotates
Shipboard use: Navigation and Combat |
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Term
|
Definition
If Gyro is Least, Error is East
If Gyro is Best, Error is West |
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Term
|
Definition
Read as degrees Magnetic
Advantage: Cheap, self-containted
Disadvantage: Magnetic North is not fixed, require regular adjustment |
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Term
| The difference between True North and Magnetic North |
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Definition
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Term
|
Definition
True Bearing=Magnetic Bearing+/- Variation
(add East, subtract West) |
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Term
|
Definition
True
Variation
Magnetic Heading
Deviation
Compass
Add
West |
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Term
|
Definition
Compass
Deviation
Magnetic Heading
Variation
True
Add
East |
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Term
|
Definition
| Relative Bearing+Magnetic Ship's Head |
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