Gyro-Compass Speed Error

September 4, 2016 SorinMStamate 2 comments
Gyro Speed Error
Gyro Speed Error

Gyro-compass Speed Error.

Gyro-Compass Speed Error: an error of the gyro-compass; the gyroscope axis deviation from to the true north direction.

It depends on the vessel speed, the ship course and the latitude.

It is maximum in courses of 0 ° and 180 ° and null in courses of 90 ° and 270 °.

It can be removed automatically using a special corrector.

Gyro-compass Speed Error _ v1.0
Gyro-compass Speed Error _ v1.0

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2 Comments on “Gyro-Compass Speed Error

    1. The rotational speed of the Earth in 1 hour is = 360⁰ / 24 hours = 15⁰ / hour
      A point on the Earth’s Equator rotates with speed is = 15⁰ * 60’= 900′ / hour = 900 Nm / hour
      It turns out that the rotational speed of a point on a parallel of some latitude, in [Nm / hour] is = 900 * cos Lat

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