What is the primary function of EFIS on the flight deck?

What is the primary function of EFIS on the flight deck?

• A. Display flight information
• B. Manage weight and balance
• C. Control flight controls
• D. Provide weather radar data only

Answer: (A)

EFIS, or Electronic Flight Instrument System, is designed to present essential flight data on electronic displays rather than traditional gauges. Its main job is to show you the critical information needed to fly and navigate the aircraft—attitude, airspeed, altitude, vertical speed, heading, and other important parameters—in a clear, integrated format. This centralized, graphical presentation helps you quickly understand the aircraft’s current state and your flight path, reducing workload and improving situational awareness. Weather radar or terrain data can be shown on EFIS displays as available features, but those are enhancements rather than the core purpose. Weight and balance is handled by separate systems and procedures for aircraft performance planning, not by the EFIS. The EFIS doesn’t control the flight controls; it merely displays information to assist you in making control decisions.

EFIS, or Electronic Flight Instrument System, is designed to present essential flight data on electronic displays rather than traditional gauges. Its main job is to show you the critical information needed to fly and navigate the aircraft—attitude, airspeed, altitude, vertical speed, heading, and other important parameters—in a clear, integrated format. This centralized, graphical presentation helps you quickly understand the aircraft’s current state and your flight path, reducing workload and improving situational awareness.

Weather radar or terrain data can be shown on EFIS displays as available features, but those are enhancements rather than the core purpose. Weight and balance is handled by separate systems and procedures for aircraft performance planning, not by the EFIS. The EFIS doesn’t control the flight controls; it merely displays information to assist you in making control decisions.