Which takeoff computation must not exceed the runway length plus the stopway for small turbine-engine-powered transports?

The takeoff computation that must not exceed the runway length plus the stopway for small turbine-engine-powered transports is the acceleration-stop distance. This distance refers to the length required for an aircraft to accelerate to a specified speed and come to a complete stop should an engine failure occur during the takeoff roll. The acceleration-stop distance is critical for ensuring safety; if this distance exceeds the available runway plus stopway, the aircraft may not be able to stop safely in the event of an emergency.

In practical terms, the stopway, which is an area beyond the runway that is designed to support an aircraft in the event of a rejected takeoff, adds valuable length to what is available for stopping the aircraft safely. For safe operations, it is essential that the calculated acceleration-stop distance remains within this constrained area.