Perhaps their batteries were flat from making so many radio calls, and they weren't carrying spares, rather than not transmitting?
They also may have been doing "aerial work" in the vicinity of the airport. You can do that VFR or IFR. So what's the difference?
So, to all you non-radio equipped pilots: When you are operating in your non-radio equipped aircraft in CTAFs, do you do the good citizen thing and inform the local council of your activities, and pay your landing fees just like those who use their radios do?
I didn't think so...................
I smell a double standard here.
