Phraya Thayaan Phikaat, also known as Thip Ketuthat (fig.), was a Thai Army Lieutenant, who in 1912 took an aviation course in France. Afterward, he received a proper Air Force rank and was at the same time promoted to Group Captain. He is known as one of the three Founding Fathers of the Royal Thai Air Force, together with Luang Ahwut Sikhikorn (fig.) and Luang Sakdi Sanyawut (fig.).