A guidebook for a specific type of circular slide rule provides detailed instructions on how to use the device for various flight calculations. These calculations encompass critical aspects of flight planning, such as determining fuel consumption, estimated time of arrival, true airspeed, and wind correction angles. Often, these guides include example problems and solutions, conversion tables, and diagrams illustrating the proper manipulation of the instrument’s rotating components and slide.
Proficiency with this analog computational tool remains relevant for pilots even in the age of digital flight planning. It provides a reliable backup method for critical calculations should electronic systems fail. Understanding the underlying principles of flight planning reinforces a deeper understanding of aerodynamic factors. Historically, this type of circular slide rule served as the primary flight planning tool, contributing significantly to the development of aviation. Its enduring relevance in pilot training underscores its foundational importance in the field.