Horizontal Situation Indicator (HSI) Explained - Pilot Navigation Display Guide #186827 (License: Personal Use)

This HSI (Horizontal Situation Indicator) combines a directional gyro with navigational aids like VOR 1 (FFM, 3 NM), VOR 2 (FRD, 1 NM), and ILS IFSE (110.95 MHz), providing pilots with real-time lateral and vertical guidance. The outer compass card rotates with aircraft heading, while the central CDI needle and TO/FROM indicators show alignment relative to selected courses. The top pointer indicates the active course, and the small aircraft symbol represents current aircraft orientation.

Used in aviation training materials, flight manuals, and pilot certification resources; targets student pilots, certified aviators, and aviation educators seeking to understand instrument navigation displays.