designations

I have been researching the designation systems of the Chinese People's Liberation Army Air Force (PLAAF). I understand how things like J7E or J8F or J11B work. That makes sense. But then there are things that pop up like K/JJ7E and K/JJ8D, or even K/AJJ7E and K/AJJ8D. I understand how the K/...

In the SNCASE designations thread, Stéphane is obviously right from a historical veracity point of view. Each country, each ministry, even each company, had their own way of doing things. Sometimes very consistently and sometimes less so. ABC12, ABC 12, ABC.12, ABC-12, ABC.XII, etc. For...