What is the abbreviation for the system that provides lateral and vertical guidance on approach?

What is the abbreviation for the system that provides lateral and vertical guidance on approach?

• A. GPS
• B. ILS
• C. LTE
• D. AIMS

Answer: (B)

The Instrument Landing System provides both lateral and vertical guidance on approach. It uses a localizer for horizontal guidance, keeping the aircraft centered on the runway, and a glide slope for vertical guidance, guiding descent to the proper height above the runway. This combination gives pilots precise guidance in instrument conditions. While GPS can support precision approaches with lateral and vertical guidance, the traditional system described here is the Instrument Landing System. LTE and AIMS are unrelated to on-approach guidance. The abbreviation for this system is ILS.

The Instrument Landing System provides both lateral and vertical guidance on approach. It uses a localizer for horizontal guidance, keeping the aircraft centered on the runway, and a glide slope for vertical guidance, guiding descent to the proper height above the runway. This combination gives pilots precise guidance in instrument conditions. While GPS can support precision approaches with lateral and vertical guidance, the traditional system described here is the Instrument Landing System. LTE and AIMS are unrelated to on-approach guidance. The abbreviation for this system is ILS.