Wan Quan has spent the past 10 years recording developments

Members of an elite unit pose in front of their J-11B fighter jets in September 2018. (WAN QUAN / FOR CHINA DAILY)

Editor's note: To mark the convening of the 20th National Congress of the Communist Party of China, China Daily has selected 10 sets of photo stories that illustrate various aspects of the country's development during the past decade. The photos, posters and videos showcase the achievements and experiences of the Party's cause, and the country under Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era. This is the fifth in the series.

Since the 18th National Congress of the Communist Party of China in 2012, the People's Liberation Army Air Force has seen tremendous developments, especially in terms of weaponry.

Photographer Wan Quan has witnessed these developments. As an enthusiast of military and aviation photography, he has been to most of the aviation shows at home and abroad where the PLA Air Force has appeared, recording the developments in his photos.

"I'm lucky to be a fan of the PLA Air Force," Wan said. "I cherish any opportunity to record its achievements with my camera."

Maintenance troops of the People's Liberation Army Air Force remove brakes from a fighter jet at a base in Northeast China in 2018. (WAN QUAN / FOR CHINA DAILY)

A technician checks a rocket pod of a fighter jet before a drill at an air force base in 2018. (WAN QUAN / FOR CHINA DAILY)

Soldiers of the air force's first unmanned combat aerial vehicle unit check a combat drone at a base in Northwest China. (WAN QUAN / FOR CHINA DAILY)

A Y-20 cargo jet performs a short-distance take-off during an air force open day event this year. (WAN QUAN / FOR CHINA DAILY)

A veteran visits the weaponry show during an air force open day event in 2018. (WAN QUAN / FOR CHINA DAILY)

Members of an air assault brigade of the PLA airborne troops perform an anti-terrorist rescue mission during an air force open day event this year. (WAN QUAN / FOR CHINA DAILY)

Two J-20 stealth fighters perform during the 13th China International Aviation and Aerospace Exhibition in Zhuhai, Guangdong province, last year. (WAN QUAN / FOR CHINA DAILY)

A J-20 pilot prepares to fly over Beijing during the National Day parade in 2019. (WAN QUAN / FOR CHINA DAILY)