Introduction to the Cave Warehouse Exhibition Hall: The Cave Warehouse Exhibition Hall was transformed from a hangar excavated in the 1970s. It is grand and open, with a total area of ​​20,000 square meters. It mainly displays representative and precious aircraft from various periods in our country. : Chujiao-5 ended the history of China being unable to build aircraft; J-12 is a new fighter aircraft completely designed by my country (Li Xiangyang in the air); Yun-5 once scattered the ashes of the Prime Minister to the land of the motherland.