Commercial Pilot License (CPL) Practice Exam 2025 - Free Commercial Pilot License Practice Questions and Study Guide

Question: 1 / 550

What is the primary function of the RMI needle in aviation?

To indicate altitude of the aircraft

To indicate bearing with respect to the heading of the aircraft

The primary function of the RMI (Radio Magnetic Indicator) needle is to indicate bearing with respect to the heading of the aircraft. This instrument is often used in conjunction with a VOR (VHF Omni-directional Range) or ADF (Automatic Direction Finder) system to aid in navigation. The RMI displays the aircraft's current heading and, through its needle, shows the direction to a selected navigational aid. This allows pilots to determine their position relative to that aid, helping them navigate effectively along their flight path.

Understanding the RMI's role in navigation is crucial for pilots, as it provides essential information for course interception and tracking, contributing to safe and efficient flight operations. The needle's ability to show both magnetic bearings and aircraft heading is particularly valuable for situational awareness in various flying conditions.

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To provide airspeed information

To measure wind velocity

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