At what altitude does takeoff officially conclude?

Takeoff officially concludes when the aircraft is at a specific point where it is no longer in the takeoff phase and is transitioning to the climb phase of flight. This transition is most commonly recognized as being at a minimal altitude of 35 feet above the runway elevation, which is significant for several reasons.

At 35 feet, the aircraft has typically lifted off the ground, allowing for a safe clearance over obstacles near the runway and ensuring that any potential issues during the immediate takeoff phase can be managed while still maintaining close proximity to the ground. This altitude also marks a critical point where the aircraft can no longer be considered in a ground roll situation.

As altitude increases, the aircraft gains more performance capabilities, however, the takeoff process is traditionally concluded at this initial height because of the immediate operational considerations pilots and air traffic control must be mindful of during this early stage of flight. At this point, operators can begin to execute climb procedures and transition their focus from takeoff to the next phase of flight, which is vital for subsequent air traffic operations and safety.

Understanding this altitude threshold provides clarity on operational procedures during takeoff and informs pilots about the critical moments right after they leave the ground.