LDA stands for

LDA stands for

• A. Takeoff Runway Available
• B. Landing Distance Available
• C. Takeoff Distance Available
• D. Accelerate Stop Distance Available

Answer: (B)

LDA stands for Landing Distance Available. This is the portion of the runway that is declared suitable for landing, measured from the landing threshold to the far end of the usable runway. It’s the distance pilots use to judge whether they can land safely given weight, speed, weather, and braking capability. A displaced threshold can shorten the LDA because the available landing area starts further down the runway. This distance is distinct from takeoff-related measurements: Takeoff Run Available is the runway length usable for takeoff, Takeoff Distance Available includes additional distance such as a clearway, and Accelerate-Stop Distance Available is the distance needed to accelerate to V1 and abort the takeoff.

LDA stands for Landing Distance Available. This is the portion of the runway that is declared suitable for landing, measured from the landing threshold to the far end of the usable runway. It’s the distance pilots use to judge whether they can land safely given weight, speed, weather, and braking capability. A displaced threshold can shorten the LDA because the available landing area starts further down the runway. This distance is distinct from takeoff-related measurements: Takeoff Run Available is the runway length usable for takeoff, Takeoff Distance Available includes additional distance such as a clearway, and Accelerate-Stop Distance Available is the distance needed to accelerate to V1 and abort the takeoff.