What Does GSI Stand For?
GSI stands for Glide Slope Indicator
The Glide Slope Indicator (GSI) is an essential component of an aircraft's Instrument Landing System (ILS) that provides pilots with visual guidance during the descent phase of landing. It indicates whether the aircraft is on the correct glide path to the runway, helping to ensure a safe and accurate approach. The GSI displays this information through a combination of lights or needles, allowing for real-time adjustments to maintain proper vertical alignment with the approach slope.
Added on 14th April 2008 | Last edited on 16th June 2025 | Edit Acronym