The glider was invented for military communications in the early days of the Imjin Patriotic War (1592-1598) by Yun Tal Gyu, a resident in Jonju area of southern Korea.

According to a history book written by Ri Kyu Gyong, a realist scholar in the mid-19th century, this flying vehicle was used to carry a communications man 12 kilometers in October 1592 when Jinju Castle in Kyongsang Province of the country was surrounded by the Japanese invaders.

The eagle-shaped glider consisted of wings, four seats, blower, air bag, control rope, wheels. It was written that this glider could fly 300 meters from a high peak or castle with help of wind and wings' operation.