Compass Needle

Compass Needle is a device used in aviation to indicate the direction of the aircraft relative to magnetic north. It is a magnetized needle that aligns itself with the Earth's magnetic field and points towards the magnetic north. The compass needle is an essential instrument for navigation and is used in conjunction with other instruments such as the heading indicator and the GPS. It is important to note that the compass needle is affected by magnetic deviation and variation, which can cause errors in navigation. Therefore, pilots must regularly calibrate the compass to ensure accurate readings.
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