Which statement describes the 44 knot rule?

Which statement describes the 44 knot rule?

• A. A speed limit on all aircraft in a sector enforced by radar.
• B. A procedure requiring all aircraft to maintain 44 knots until clear of traffic.
• C. An en route or departure aircraft follows another en route aircraft which is reported over the same fix.
• D. A rule that restricts 44 knot turbulence advisory only.

Answer: (C)

This question tests understanding of a traffic sequencing rule used to manage spacing when two aircraft are associated with the same navigation fix. The 44 knot rule means that an en route or departure aircraft may be instructed to follow another en route aircraft that has been reported over the same fix. By using the lead aircraft as the reference point and maintaining a prescribed following pattern, controllers can keep the follower safely on the same track without trying to establish ad hoc spacing, until the lead clears the fix or separation can be reassessed. This isn’t about a sector-wide speed limit or a turbulence advisory. It’s a specific method for sequencing traffic—having the follower track the lead over the fix to preserve predictable, safe separation as both aircraft advance along their routes.

This question tests understanding of a traffic sequencing rule used to manage spacing when two aircraft are associated with the same navigation fix. The 44 knot rule means that an en route or departure aircraft may be instructed to follow another en route aircraft that has been reported over the same fix. By using the lead aircraft as the reference point and maintaining a prescribed following pattern, controllers can keep the follower safely on the same track without trying to establish ad hoc spacing, until the lead clears the fix or separation can be reassessed.

This isn’t about a sector-wide speed limit or a turbulence advisory. It’s a specific method for sequencing traffic—having the follower track the lead over the fix to preserve predictable, safe separation as both aircraft advance along their routes.