Please Register or Log in to view the hidden image! This screen shot, captured from a video, shows a row of little bumps towards the wing tip of this Embraer aircraft. Someone on another forum thinks they are some kind of navigation light, as apparently they "flash" at night. I am sceptical. I suspect they are something to improve the airflow over the aileron, which catch the rotating beam of a beacon on the fuselage and thus appear to flash. But I'm not a pilot. Does anyone know what this wing feature is and what it does? One for billvon, perhaps?