During the Korean War, the Chinese Volunteers lacked Soviet aircraft equipped with auxiliary fuel tanks, so Liu Yalou decided to develop auxiliary fuel tanks on his own. Under the condition that the country's industrial base is weak, Liu Yalou asked the Beiling Aircraft Repair Factory for assistance, and Xiong Yan expressed his willingness to lead the whole factory personnel to devote themselves to research. After hard work, the Beiling Aircraft Repair Plant successfully developed the first self-produced auxiliary fuel tank and installed it on Soviet aircraft, providing important support for the Chinese Air Force. This story shows the courage and determination of the Chinese people to be self-reliant, and the ability to resolve crises even when the country faces difficulties, showing the wisdom and strength of the Chinese people.
