Vertical card compass

Vertical Card Compass

A vertical card compass is a type of magnetic compass used in aircraft navigation. It consists of an azimuth on a vertical card, taking the form of a heading indicator, complete with a miniature airplane. The purpose of this compass is to present the aircraft’s heading with great accuracy.

The design of the vertical card compass aims to minimize lead and lag during turns. It utilizes eddy current damping to achieve this. Eddy current damping refers to the use of a non-magnetic metal disc placed in the compass housing, which generates a magnetic field that opposes movement. This field creates resistance to dampen any movement of the compass card, resulting in minimal lag and lead when turning.

The vertical card compass is an essential tool for pilots, as it provides reliable direction and orientation in flight. Its accuracy and responsiveness enable pilots to make quick and precise course corrections, ensuring safe and efficient navigation.