Carrier Air Traffic Control Center (CATCC) Practice Exam

How many degrees of heading change are needed for a clearing turning on a Case II departure?

10 degrees 20 degrees 30 degrees 40 degrees

Correct Answer:

20 degrees

Explanation:

Clearing turns move a departing aircraft away from the immediate departure path so controllers can verify separation from other traffic before continuing on the published route. For a Case II departure, the standard maneuver is twenty degrees of heading change. This angle provides enough lateral offset to ensure safe separation while keeping the turn concise so climb performance and timing aren’t unduly affected, which is important in the busy carrier environment. A smaller turn, like ten degrees, wouldn’t reliably create the needed separation, and larger turns such as thirty or forty degrees would be more than required for this case and could complicate traffic flow and deck operations.

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