A displaced threshold reduces the runway length available for landings and can be used for takeoffs but not landings. Which statement is true?

• A. Takeoffs but not landings.
• B. Landings only.
• C. Both takeoffs and landings.
• D. Neither takeoffs nor landings.

Answer: (A)

Displaced thresholds change how much runway is available for landing versus takeoff. When a threshold is displaced, the portion of the runway before the new threshold can’t be used for landing, so the landing distance is reduced. That same portion, however, remains usable for the takeoff run, so aircraft can start their takeoff from the displaced threshold and use the full length from there onward. So the true statement is that takeoffs are possible, but landings are not permitted on the part of the runway before the displaced threshold. The other options would imply landing-only use, both uses, or neither, which doesn’t match how a displaced threshold affects available distances.