Originally Posted by
Dick Smith
You say you have flown extensively in the US and the UK.
Both of these countries have higher traffic densities but do not have an Australian type transponder mandate in class E.
Why would this be so if they were necessary for safety?
correct. So either change the rules here that transponder is not required in class E or mandate them.
most pilots I know in USA have transponders. Bit like rules around bike helmets. Not every state mandates cyclists to wear helmets, but you a bloody fool if you don't. Same for transponders