Course-Distance Computer

A Course-Distance Computer is a navigational instrument used to calculate and determine the course and distance between two points. It is commonly used in marine navigation to plan and track routes.

The Course-Distance Computer typically consists of a circular slide rule or a rotating disk with various scales and markings. These scales and markings allow the user to input the known values, such as the speed and time, and calculate the course and distance based on these inputs.

The instrument is designed to be used in conjunction with a nautical chart or map. By aligning the instrument with the desired course and using the appropriate scales, the user can determine the distance to be traveled and the course to be followed.

Course-Distance Computers are essential tools for navigators, sailors, and pilots who need to accurately plan and navigate their journeys. They are commonly found on ships, boats, and aircraft, as well as in navigation training facilities and classrooms.

In summary, a Course-Distance Computer is a navigational instrument used to calculate and determine the course and distance between two points, primarily used in marine navigation.