I'm committing the sin of double posting...
Some of the points conveniently missed by Andrew Fowler.
- We need an interim aircraft as well because the centre barrel program has gone a little pear shaped
- the F-111 cannot go into contested airspace under current RAAF doctrine without an escort - as it can't survive. Its a strike platform - not a fighter
- that one of the big issues is that there are no spare parts for the rocket ejection systems. the current stocks decay at 2010-2012. After that if there is a catastrophic event, then there's no guarantee that the pilots can eject
- that their cute 2012 scenario wasn't gamed out with the F-111 where they definitely would not last - even against a short flight of Sooks (and that assumes that the indons have weapons)
- that the only country that is on our immedoate threat matrix is Indonesia - and they don't have the weapons for them, they don't get the requisite hours, and they certainly don't have more modern weapons (if any at the moment)