Define "ILS" in aviation terms.

The term "ILS" in aviation refers to the Instrument Landing System. This system is critical for landing aircraft in low visibility conditions, providing both lateral and vertical guidance to pilots as they approach the runway. It consists of two primary components: the localizer, which helps the pilot align the aircraft with the centerline of the runway, and the glide slope, which indicates the correct angle of descent.

The importance of the ILS lies in its ability to enhance safety and precision during landings, helping to reduce the risk of accidents associated with poor visibility due to weather conditions. ILS supports a range of operations from precision landings down to specific minimum visibility requirements, making it an essential system for commercial aviation and airport operations.

Understanding the role and function of the Instrument Landing System is crucial for pilots and aviation professionals as it fundamentally enhances the safety and efficiency of airport operations.