AIM Text
- ATC may conduct instrument approaches simultaneously to converging runways; i.e., runways having an included angle from 15 to 100 degrees, at airports where a program has been specifically approved to do so.
- The basic concept requires that dedicated, separate standard instrument approach procedures be developed for each converging runway included. These approaches can be identified by the letter “V” in the title; for example, “ILS V Rwy 17 (CONVERGING)”. Missed Approach Points must be at least 3 miles apart and missed approach procedures ensure that missed approach protected airspace does not overlap.
- Other requirements are: radar availability, nonintersecting final approach courses, precision approach capability for each runway and, if runways intersect, controllers must be able to apply visual separation as well as intersecting runway separation criteria. Intersecting runways also require minimums of at least 700 foot ceilings and 2 miles visibility. Straight in approaches and landings must be made.
- Whenever simultaneous converging approaches are in use, aircraft will be informed by the controller as soon as feasible after initial contact or via ATIS. Additionally, the radar controller will have direct communications capability with the tower controller where separation responsibility has not been delegated to the tower.
Source: FAA Aeronautical Information Manual · current edition · paragraph 5-4-17.
The short answer
This AIM section covers simultaneous converging instrument approaches: FAA advisory guidance on how ATC may run approaches at the same time to converging runways with an included angle from 15 to 100 degrees, at airports with a specifically approved program. It supports IFR operations under 14 CFR 91.175 and requires dedicated, separate approach procedures for each runway.
Research Notes
Common Questions
What runway angles qualify as converging for these approaches?
The AIM defines converging runways as those having an included angle from 15 to 100 degrees, at airports where a program has been specifically approved. Each converging runway must have its own dedicated, separate standard instrument approach procedure, and missed approach points must be at least 3 miles apart with non-overlapping missed approach protected airspace.
How do I identify a converging-runway approach on the chart?
Per the AIM, these approaches are identified by the letter “V” in the title — for example, “ILS V Rwy 17 (CONVERGING).” Other requirements include radar availability, nonintersecting final approach courses, and precision approach capability for each runway. Straight-in approaches and landings must be made.
Are higher weather minimums required when runways intersect?
Yes. The AIM states that intersecting runways require minimums of at least 700-foot ceilings and 2 miles visibility, and controllers must be able to apply visual separation as well as intersecting runway separation criteria. Whenever simultaneous converging approaches are in use, aircraft will be informed by the controller as soon as feasible after initial contact or via ATIS.