What is the length and width of the treasure used by Zheng He in his voyage to the West?

According to Ming History and Biography of Zheng He, there are 63 treasure ships of Zheng He, the largest of which is 44 feet long and 18 feet wide. It was the largest seagoing ship in the world at that time, with a length of151.18m and a width of 61.6m.. This ship has four floors. Nine masts on the ship can hang 12 sails, and the anchor weighs several thousand kilograms. It takes 200 people to set sail, and a ship can hold thousands of people. "Ming history? 6? 1 Military Records also records: "The treasure ship is as high as a building, with a wide bottom and can hold thousands of people. "

Zheng He's fleet has five types of ships. The first one is called "treasure ship". The largest treasure is 44 feet long, 18 feet wide and carries 800 tons. This kind of ship can hold thousands of people, and it was the largest ship in the world at that time. Its posture is magnificent and unparalleled. Its iron rudder needs two or three hundred people to move. The second kind is called "horse boat". Captain Ma is thirty-seven feet long and fifteen feet wide. The third kind is called "grain ship". It is 28 feet long and 12 feet wide. The fourth type is called "by boat", which is 24 feet long and 9 feet wide. The fifth type is called "warship", which is eighteen feet long and six feet wide. It can be seen that some of Zheng He's ships are used to carry goods, some are used to transport grain, some are used for fighting, and some are used for living. The division of labor is refined and there are more types. It can be said that Zheng He's fleet is a large fleet with treasure ships as the main body and ships as the auxiliary.