Formulas for the Air Navigation Computer is written for pilots and air navigators at all levels of experience from the novice to the professional. The book is self-help on how to use the E6-B Air Navigation Computer. An E6-B Air Navigation Computer is a circular slide rule with a wind slide on the reverse side. It is dedicated to performing all calculations related to pre-flight planning and in-flight air navigation. Every pilot has an E6-B Air Navigation Computer, which is supplied with a very brief instructional booklet when the E6-B is purchased. However, the booklet only covers a few basic formulas, and many more formulas are required for passing the pilot navigation exams at various levels and, of course, for all operational flying. Obtaining all these different formulas from various sources is time consuming, as this author has discovered over the years. They are not readily available in one book. This is the reason for writing Formulas for the Air Navigation Computer; it is a...