I bet the answer to this is in here somewhere but despite looking I didn't find anything so sorry if this has been asked before.

What was the number of operations an airman had to do C1943? I believe that the RAF was 30 and USA was 25. Was the RCAF 25 also and if so would it apply even if not in a RCAF squadron? What about RAAF, were they 25 or 30?

I have a RCAF WOP stopping at 25 so wondering if his tour was up.

I also have an RAF tail gunner stopping at 23 and don't know why he would as didn't appear to be injured.