well said Peg
although the good Minister for airport noise is a little slow in responding to letters unless it is to funnel Fed $ to a select few wayward Victorian councils that are running a little too close to the Auditor General's scrutiny. (standby for Brimbank II).
That said, it would be good for the unions to start compiling the data
a/c rego date ops rpt/charter etc - and make a factual submission.