Design landing weight

The maximum weight an aircraft that is designed and allowed to have for landing. Landings put far more stress into an aircraft structure than takeoffs, and therefore large aircraft that fly for long distances are allowed to have a greater weight for takeoff than for landing. Airplanes approved for a greater takeoff weight than landing weight must have some method of jettisoning enough fuel to bring the weight down to the allowable landing weight if the aircraft should have to land before enough fuel has been consumed by the engines.