Ahh the Boomerang
13 weeks from concept to first flight, making use of what was available in an austere wartime environment.
Fastest climbing interceptor at the time to 15,000 ft and, according to allied test pilots who tested both, more manouverable than the Zero to 15,000 ft below 250 mph.
Rather effective in the ground attack role.
What about the Avon Sabre? Better engine and armament than the original. Funny how yank airframes do better with pommie engines (and Aussie pilots).
Harry Hawker came from down this way I believe, one of a veritable pantheon of Aussies and Kiwis aviators and designers.
How about Sydney Cotton, Don Bennett, Ross and Keith Smith, nancy Bird et al.