ASDA is calculated as which of the following?

ASDA is calculated as which of the following?

• A. TODA + clearway
• B. TORA + stopway
• C. TORA + clearway
• D. TODA + stopway

Answer: (B)

The correct choice is based on the definition of ASDA, which stands for Accelerate-Stop Distance Available. It refers to the length of the runway available for an aircraft to accelerate to takeoff speed and then stop if necessary. To calculate ASDA, you take the Takeoff Run Available (TORA) and add the Stopway. TORA is the length of the runway that is available and suitable for the ground run of an aircraft during takeoff, while the Stopway is an area beyond the runway that is suitable for deceleration and stopping an aircraft that fails to take off. Understanding that ASDA represents both the distance to accelerate and the distance available to stop is essential. Thus, when considering runway lengths and dimensions, TORA combined with the Stopway gives a complete picture of the available distance for both phases of operation: acceleration and potential deceleration. The reasons why other choices do not fit the definition include the absence of the Stopway in those options, which is necessary for calculating ASDA accurately. For example, adding a clearway would not contribute to the deceleration capability required for stopping a plane, which is a crucial component of ASDA. Hence, the combination of TORA and Stopway is what precisely defines the Acceler

The correct choice is based on the definition of ASDA, which stands for Accelerate-Stop Distance Available. It refers to the length of the runway available for an aircraft to accelerate to takeoff speed and then stop if necessary.

To calculate ASDA, you take the Takeoff Run Available (TORA) and add the Stopway. TORA is the length of the runway that is available and suitable for the ground run of an aircraft during takeoff, while the Stopway is an area beyond the runway that is suitable for deceleration and stopping an aircraft that fails to take off.

Understanding that ASDA represents both the distance to accelerate and the distance available to stop is essential. Thus, when considering runway lengths and dimensions, TORA combined with the Stopway gives a complete picture of the available distance for both phases of operation: acceleration and potential deceleration.

The reasons why other choices do not fit the definition include the absence of the Stopway in those options, which is necessary for calculating ASDA accurately. For example, adding a clearway would not contribute to the deceleration capability required for stopping a plane, which is a crucial component of ASDA. Hence, the combination of TORA and Stopway is what precisely defines the Acceler