 Complete the following phrase:  The prototype of the Hawk 75Ha simplified version with fixed landing gear, like the 75Owas eventually sold to the Chinese Nationalist government who presented it to Claire L. Chennault for personal use. China also received two similar demonstrators, the Hawk 75Q. They also used a number of simplified Hawk 75Ms against the Japanese. On 11 January 1939, five Hawk 75Ms of the veteran CAF 25th Fighter Squadron led by commander Liu Yijun 劉依鈞 were flown to the new wartime capital of 