What does Glideslope provide?

What does Glideslope provide?

• A. Provides vertical guidance for the ILS
• B. Provides horizontal guidance for the ILS
• C. Transmits VHF signals in a finite number of compass headings used for aircraft navigation
• D. Provides no guidance

Answer: (A)

Glideslope provides vertical guidance for the ILS approach. It defines the descent path the aircraft should follow so you maintain the correct glide angle to the runway, typically about 3 degrees. The ILS uses two parts: the localizer for horizontal guidance to align with the runway centerline, and the glideslope for vertical guidance to manage descent. As you fly, the glideslope indicator tells you whether you’re above or below the path and by how much, helping you stay on the proper descent profile even in poor visibility. The other options don’t fit because horizontal guidance comes from the localizer, the glideslope isn’t a system of compass headings, and it certainly does provide guidance.

Glideslope provides vertical guidance for the ILS approach. It defines the descent path the aircraft should follow so you maintain the correct glide angle to the runway, typically about 3 degrees. The ILS uses two parts: the localizer for horizontal guidance to align with the runway centerline, and the glideslope for vertical guidance to manage descent. As you fly, the glideslope indicator tells you whether you’re above or below the path and by how much, helping you stay on the proper descent profile even in poor visibility. The other options don’t fit because horizontal guidance comes from the localizer, the glideslope isn’t a system of compass headings, and it certainly does provide guidance.