Three times in a row, I was in a B17 at 16k, and started taking flak near the HQ.
Each time, the first thing hit was "Aux Fuel", and less than one minute later the plane explodes. Was I directly hit in the exact same fuel tank again by flak, or is there a countdown before the plane just explodes?
I mention the latter because I was in a N1K, and nailed an enemy B17's fuel tank (it was streaming white vapor). Just me and him. I extended out to D3.2, and then he just exploded. No one else was around, and there was no ack that I could see.