Connair
Coming back to Alice Springs from the rock in a lightie one day, and a Connair DC3 was outbound from Alice for the rock. He was not much higher than me, and after he passed overhead I called to advise that I had seen him pass. He replied " were we right over the top, or out to one side?" I replied that they were right over the top, to which he replied "Oh good, we are on track"