When should pilots announce their position while requesting departure clearance?

Pilots should announce their position when taking off at a runway intersection to ensure clear communication with air traffic control (ATC) and to enhance situational awareness. This is critical, particularly at busy airports or when departing from intersecting runways, where clarity on the aircraft's exact location can prevent confusion and potential incidents. It helps ATC to facilitate the departure process by providing them with needed information about the aircraft's position in relation to the runway they are about to use.

Making the announcement at this moment shows that the pilot is aware of their current position relative to the runway and is ready to proceed with the takeoff, thereby promoting safety and effective communication. In contrast, announcing position before entering the taxiway or during the pre-flight checklist does not provide relevant or timely information regarding their readiness to take off. Furthermore, waiting until after receiving clearance is too late for ATC to adjust any instructions based on the pilot’s exact position at that critical moment.