Air Navigation Plotter-Protractor

An Air Navigation Plotter-Protractor is a navigational instrument used in aviation for plotting and measuring distances on aeronautical charts. It is specifically designed for use in air navigation and is commonly used by pilots and flight navigators.

The Air Navigation Plotter-Protractor is a combination tool that serves two main purposes. Firstly, it can be used to measure the distance between two points on a chart. This is done by aligning the edge of the plotter with the desired route and reading the distance directly from the scale provided on the tool.

Secondly, the plotter-protractor can be used to determine the true course or bearing between two points. By aligning the tool with the desired route and the meridian lines on the chart, the user can read the true course or bearing directly from the scale provided.

This instrument is essential for flight planning and navigation, as it allows pilots to accurately measure distances and determine the correct course to follow. It is a valuable tool for ensuring safe and efficient navigation during flight.

The Air Navigation Plotter-Protractor falls under the supply class Navigational Instruments, which includes various instruments used for navigation purposes in aviation and marine industries. It belongs to the supply group Instruments And Laboratory Equipment, which encompasses a wide range of instruments and equipment used in laboratories, research facilities, and other scientific applications.