Tailwind Landing Check
Check whether a runway tailwind component is at or below a supplied landing limit.
Description
Compare a nonnegative landing tailwind component with a supplied maximum limit.
Tailwind Landing Check compare a nonnegative landing tailwind component with a supplied maximum limit.
Use this as a transparent threshold check after deriving the runway tailwind and obtaining the applicable limit from approved aircraft data or operating procedures.
When to use Tailwind Landing Check
Use this as a transparent threshold check after deriving the runway tailwind and obtaining the applicable limit from approved aircraft data or operating procedures.
How it works
The result is true when tailwind is less than or equal to the supplied limit; equality is treated as within the limit.1
Interpreting the result
Keep the input units, direction conventions, encoding, and ordering rules visible when reusing the result. Preserve the full returned value for downstream calculations and round only for presentation.
Assumptions and limitations
This does not determine the limit or landing safety. Operators must use the correct aircraft configuration, runway state, performance data, regulatory margins, and current conditions.
References
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Pilot's Handbook of Aeronautical Knowledge — Federal Aviation Administration