No, the maintenance of the palace refers to the care of the palace and maids when the emperor travels. The palace is the place where the emperor takes a temporary rest or handles government affairs when he travels, and the maid-in-waiting is the maid-in-waiting who is responsible for taking care of the daily life of the emperor. These ladies-in-waiting will travel with the emperor, take care of his diet and daily life in the palace, and ensure his health and comfort. Therefore, the maintenance of the Forbidden City does not include airplanes and other means of transportation.