Although aimed at the general public and not the aviation community, this Airservices Australia video is an excellent explainer about how the airspace around Brisbane Airport is managed. Since the second runway was built, there has been a lot of noise about noise and demands for flights to be redirected away from residential areas. This video is an attempt to make people understand what's happening in the skies. but is useful for the aviation community as well, especially if you're not too familiar. Will it soothe the angry noise beasts? It's unlikely, but it's worth the try.