SCE to Aux,
There you go with more theory. Most of that stuff from CASA was written by MS, I well-known DS supporter. I simply cannot believe CASA thinks no radio is better than radio because people get lulled into a false sense of security. Actually, MS thought a few years ago. He's gone. I wonder what CASA today thinks?
ICAO also has no transponder requirement in E. If you reckon that is a good idea, you're crazy in my view. This is the same organisation (Euro centric) that has only just started to realise (after prodding from the Scandinavians) that 3000ft TL in Europe may not be a good thing. Der. Their airspace classifications belong in a bygone era, if you ask me. E was good for DC-3s and the occasional Cessna. Nowadays? CTA or OCTA+DTI+CTAF Rs. That's all it needs to be. A,C,D,E G? Alphabet soup!