What is the maximum tailwind allowed for takeoff and landing?

The maximum tailwind allowed for takeoff and landing is 10 knots. This limitation is primarily set to ensure adequate control and performance during both the takeoff and landing phases of flight. Tailwinds can impact the aircraft's takeoff performance by requiring a longer distance to reach takeoff speed and can also affect landing distances, potentially leading to runway overruns if not managed properly.

A limitation of 10 knots provides a good balance between taking advantage of favorable winds for speed and ensuring safety margins. Exceeding this tailwind limit could compromise the aircraft's handling and margin for error, especially during critical phases of flight when precise control is essential.