Learn essential concepts of vertical navigation in aviation, focusing on altimetry. Explore the International Standard Atmosphere, QFE, QNH, and standard pressure settings. Understand temperature corrections and true altitude calculations. Gain practical knowledge for ATPL theory exams and ground school training, with real-world examples and study tips. This 22-minute video lecture, part of the General Navigation series, provides crucial information for pilots to safely navigate aircraft vertically and maintain proper altitude awareness.