The Chaser,
By moving to NAS Class D at Bankstown there will be no measurable increase in restrictions for fixed wing and helicopter transits. You simply do not understand how it works. It is like the people who say that using ICAO Class D – as they do in the USA, that IFR must separated from IFR therefore there will be restrictions and delays at Bankstown. This is wrong, if the correct terminology is used there is no measurable difference for IFR aircraft operating in GAAP and IFR operating in US NAS Class D.
You just have to be prepared to ask advice on how the system works and then look at the advantages and disadvantages – quite simple. At the present time most of the people in the office of Airspace Regulation at CASA have their minds completely closed. You have probably heard the claim that Class C costs the same as Class D so we may as well have C. This is wrong. If we had upgraded Bankstown to Class D as per the NAS there would not be two reporting points. Therefore the two people who lost their lives could be alive today.