Which vertical mode is used for ILS glide slope guidance?

Which vertical mode is used for ILS glide slope guidance?

• A. Glide Slope
• B. Vertical Speed
• C. Descent
• D. Go Around

Answer: (A)

Tracking the ILS vertical path relies on the glide slope signal, which defines the required descent angle toward the runway. When Glide Slope mode is selected, the flight control system uses that signal to automatically adjust the aircraft’s pitch and keep you on the intended glide path. This is why Glide Slope is the correct vertical mode for ILS guidance. Vertical Speed would simply command a rate of climb or descent without following the precise glide angle, Descent is too generic to be a standard autopilot mode for this, and Go Around is a maneuver used to abort the approach rather than a mode for following the glide path.

Tracking the ILS vertical path relies on the glide slope signal, which defines the required descent angle toward the runway. When Glide Slope mode is selected, the flight control system uses that signal to automatically adjust the aircraft’s pitch and keep you on the intended glide path. This is why Glide Slope is the correct vertical mode for ILS guidance. Vertical Speed would simply command a rate of climb or descent without following the precise glide angle, Descent is too generic to be a standard autopilot mode for this, and Go Around is a maneuver used to abort the approach rather than a mode for following the glide path.