What is the minimum distance for initiating turns on departure?

The minimum distance for initiating turns on departure is generally specified as 6 DME from the departure end of the runway. This distance is established to ensure safe separation from terrain and obstacles, allowing for stable and effective turn execution immediately after takeoff. Initiating a turn at this distance helps to maintain proper climb performance and situational awareness, as the aircraft is still in its initial climb phase where altitude and speed must be carefully managed.

Choosing a point such as 10 DME or 8 DME for initiating turns could lead to an unnecessarily wide turn that may not align with air traffic control (ATC) instructions or safe operational protocols. Similarly, initiating a turn at 3 DME would be too close to the departure end, increasing the risk of encountering obstacles or conflicting air traffic. The specified minimum distance of 6 DME strikes an effective balance between safety and operational efficiency during the critical initial phase of flight, aligning with standard operating procedures.