Definition
Instrument approach procedures to two or more runways at the same airport whose final approach courses intersect or come together at angles that, without specific procedural protections, would not provide adequate separation between aircraft. Converging approach operations require published Converging ILS Approach procedures, specific equipment and weather minimums, controller coordination, and missed approach paths designed to keep aircraft apart if either pilot goes around.
Plain English
Two or more instrument approaches at the same airport that point toward runways whose paths cross or come together. Because the approach paths are not parallel, special rules and procedures are used to keep arriving aircraft safely separated.
Context Anchor
Seen in instrument approach operations at airports where runways are angled toward each other and ATC may use special procedures for simultaneous ILS approaches.
Derivation
Converging comes from the Latin convergere, meaning 'to incline together' or 'come toward the same point.' That captures the geometry exactly: two final approach courses leaning toward each other rather than running side by side.
Why Pilots Care
Ensures pilots and controllers apply correct separation and missed-approach routing so two aircraft can land at the same time without conflict.
Analogy
It is like two cars approaching the same intersection from different roads. They are not on the same road, but their paths are aimed toward the same area, so timing and instructions matter.
Intuition Check
Converging does not just mean several approaches are happening at the same airport. It means the flight paths angle toward each other, creating a spacing issue that must be managed.
Example Sentence 1
Because the weather was below the converging approach minimums, the controller sequenced all arrivals to a single runway instead.
Example Sentence 2
When weather allows simultaneous operations, converging approaches increase airport capacity but demand precise timing on missed approach instructions.