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How do you steer with gyro error?

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Anonymous

13y ago
Updated: 8/17/2019

For my answer I will assume we are speaking of steering a ship.

In order to steer with gyro compass error the error must be known. There are many ways to determine this (Azimuth of the Sun, Amplitude of the Sun, Azimuth of Polaris, Distant Object Method). Actually performing these is beyond the scope of this question however if you would like instructions how the American Practical Navigator is the place to go.

Error is usually less than a degree. No ship's captain or master would be happy with bearing error in whole degrees.

Once the error is know, simple arithmetic will allow you to steer the desired course. To obtain the course to steer the error is added to the desired true heading. Consider East error to be negative and West error to be positive. This is often remembered by using "East is Least; West is Best."

Formula:

S = Heading to steer

E = Error

D = Desired True Heading

S = D + E

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Wiki User

13y ago

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