What aspect does the "lead bearing" represent on approach charts?

The "lead bearing" indicates the direction in which a pilot should begin turning to a desired course before they reach the final approach course. This is crucial for managing the descent and ensuring a smooth transition to the final approach segment. By turning at the correct lead bearing, pilots can align themselves effectively with the approach path, allowing for a more controlled and stable approach to landing.

The lead bearing helps pilots maintain situational awareness and ensures that they do not overshoot the final approach course due to delays in turning. Recognizing this aspect of approach charts is critical for executing approaches safely and efficiently. It's a key component in understanding the timing of the maneuver during an approach and adhering to proper procedures.