The RAF's Top Gun 'traitors' paid hundreds of thousands to train Chinese pilots how to shoot enemy planes out of the sky

 least 18 British pilots were recruited to train China’s People’s Liberation Army Air Force. Of these, six were involved in teaching air combat skills, six were teaching submarine hunting techniques and six were instructing future Chinese test pilots.

https://www.dailymail.com/news/article-15923591/RAF-traitors-Chinese-pilots-investigation.html