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13 de abr. de 2023 · In this blog we will discuss the procedure on how to calculate both gyro and magnetic compass error, as well as the compass deviation. There are other ways to find compass error (such as transit bearings) but for this example we will use the most common method which is finding the azimuth of celestial body.
Compass Variation and Deviation. All information on a chart, including your own plotting, is related to TRUE North. Thus all bearings on a chart are related to TRUE NORTH. Compasses point to MAGNETIC NORTH, which varies from True North by an error called VARIATION.
13 de oct. de 2023 · In aviation, the acronym "VD-MONA" is used to help pilots remember errors that can happen ith the magnetic compass. It stands for: Variation. Deviation. Magnetic Dip. Oscillation. Northerly Turning Errors. Acceleration/Deceleration Errors. Let's get a more in-depth look at each one of these errors: Magnetic Variation. What is it?
In this video the compass errors caused by magnetic variation and compass deviation are explained with graphical examples.Do you want to support this channel...
- 16 min
- 72.4K
- Aviation Theory
22 de may. de 2019 · This video explains the procedure to calculate the compass error in the context of coastal navigation. In doing so, it also explains the procedure for obtaining the deviation and variation; and...
- 25 min
- 43.2K
- Steering Mariners
The compass needle is deflected by local magnetic fields caused by metallic objects close by. It could be a tin of paint in a cupboard, the lead in your keel, or, if you are on a large ship, it could even be the cargo or the hull itself.
Construction of the magnetic compass is relatively universal, but comes with some errors. Some of these errors include the various display methods to include the vertical card magnetic compass. More complex iterations, such as the flux-gate compass system, can compensate for some of these errors.
