Final answer:
Capturing the glide slope during an ILS approach provides pilots with vertical guidance for a proper descent path towards the runway, ensuring a safe landing with the correct angle.
Step-by-step explanation:
When the glide slope is captured, and mode activated, it provides pilots with vertical guidance for their approach to land on the runway. Essentially, capturing the glide slope means that the aircraft's autopilot or flight director system has locked onto a signal that defines the correct angle of descent towards the runway. This helps ensure that the aircraft descends at the proper rate, maintaining the correct path to safely reach the touchdown point on the runway.
During an Instrument Landing System (ILS) approach, the glide slope is one of the critical components, along with the localizer, which provides horizontal alignment. With both captured, pilots have precise lateral and vertical information to conduct a safe approach in challenging visibility conditions. The system automatically adjusts the aircraft's pitch attitude and power settings to help maintain the glide path.