A long time ago (but not in a galaxy far, far away), I had a visit to the naval air station at Fallon. The weather was not ideal for the visit, and we had a bit of a disappointing result when it came to flying jets. I did spend some time on the ramp, though. A Super Hornet was marked up in squadron colours, and this was what initially caught my attention. However, as I looked at the jet more closely, I was fascinated by the dirt streaks emanating from the fasteners on the rear fuselage panels. These marks clearly showed the path the flow takes across this part of the airframe.