Gaining An R.A.F Pilots Brevet In WW11 - PPRuNe Forums I mentioned this thread on naafi. I have followed it for the past few years since it was created. In that time a few of it's contributors have..."stopped posting". You get the drift... I urge anyone who was not aware of this thread and who has interest in the air battles of WWII to take a look. Balls of steel, without even an ounce of bravado. Understatement does not begin to cover it.