Magnetic Variation Computer

A Magnetic Variation Computer is a navigational instrument used to calculate the magnetic variation or magnetic declination at a specific location. Magnetic variation refers to the difference between true north (geographic north) and magnetic north. This variation can vary depending on the location on the Earth's surface.

The Magnetic Variation Computer is designed to help navigators determine the correct magnetic heading to follow when using a magnetic compass. It takes into account the current magnetic variation for a specific location and provides the necessary correction to the compass heading.

This instrument is typically used in marine navigation, aviation, and other applications where accurate heading information is crucial. It is an essential tool for ensuring accurate navigation and avoiding navigational errors.

In terms of the supply class, the Magnetic Variation Computer falls under the category of Navigational Instruments. It is specifically designed to assist with navigation-related calculations and adjustments. Within the broader supply group of Instruments And Laboratory Equipment, the Magnetic Variation Computer is classified as a specialized instrument used for navigational purposes.