GACA Aeronautical Information Publication Practice Exam 2026 – Complete Test Prep

The maximum allowable tailwind for automatic landing is typically set at 10 knots. This limitation is established to ensure that the aircraft maintains safe controllability and landing performance during the final approach and landing. A tailwind can affect the aircraft's deceleration and increase the landing distance, which could lead to challenges in stopping on the runway.

While some aircraft may have specific endorsements or different operational procedures that allow for variations, the 10-knot limit is common in most operations to minimize the risks associated with higher tailwinds. This operational standard helps to ensure that, regardless of aircraft type or conditions, there is a consistent and safe threshold for pilots and operators to adhere to during automatic landings.