The AAAA is the Antique Aircraft Association of Australia and Echuca is a town on the Murray River in southern Oz. This was hardly an Oshkosh, but a good range of aircraft turned up for the weekend including five Sonexs.
I feel pretty good about myself for building and flying my own aircraft, but the work put in by some of the aircraft restorers really puts things into perspective. They were just beautiful. They included a good range of warbirds and a couple of beautiful old passenger carriers. Here's a link to my blog if you'd like to read more.
http://www.ansoneng.com/sample-page/sonex-trips/aaaa-antique-aeroplane-association-of-australia-fly-in-echuca-1617-april-2016/Peter