Jaba. When CASA gets international consultants they nearly always come from Europe- rarely the USA.
If CASA has had consultants doing this study they haven't published anything.
In the UK, like the rest of Europe, GA is in severe problems. Only in North America is there a commercially viable GA industry.
I have flown both IFR and VFR in the countries your post covers.
To maximise the use of existing radar we could have designed our own unique system- then flyers and passengers would be Guinea Pigs for an unproven system.
Or we could have copied a proven system that had lots of data available on on the resultant levels of safety. And that's why both times we decided on the US NAS as the way to go.
Unfortunately those who resist change have stopped us ever completing the NAS system.
And if fact ,they have forced reversals on the introduction so the present system is half wound back and a stuff up. No wonder CASA is trying to make it work with piecemeal changes on frequencies at CTAFs. Unfortunately the internal CASA " code " prevents them from getting anyone with professional experience in the US NAS to advise on how to complete the introduction.
I am hoping that new people coming into the system will embrace the proven overseas system and we will be able to comple the plan.
Last edited by Dick Smith; 11th Apr 2016 at 22:02.