What does the number 36 on a runway indicate?

The number 36 on a runway indicates 360 degrees, which relates to true North. In aviation, runways are numbered based on their magnetic heading, rounded to the nearest ten degrees. Consequently, a runway marked with the number 36 is aligned approximately toward a magnetic heading of 360 degrees, which means it is oriented in a north direction. This alignment is crucial for pilots during takeoff and landing, as it provides them with essential directional information.

The other options offered do not represent accurate interpretations of the runway number. For instance, while the number could imply some measure of distance or altitude, those specifics are not typically represented by the runway designation. The focus on magnetic heading emphasizes the importance of navigation and approach in aviation practices.