When you look at it in the grand scheme of things Australia having 6 AEW&C aircraft (on top of everything else we have or are acquiring/planned) we are already hitting well above our weight. The USAF them selves only have around 40 AEW&C/C&C aircraft and they are over 20 times the size of the RAAF so statistically they should have 120+ or we should only have 2. The RAF is more then double the size and are buying 1 less aircraft. Australia getting any more aircraft then our current 6 would be purely for the benefit of our allies at the expense of other systems that those funds and personnel could go towards. If we need improved training then build a ground based training center, Anything more would be a waste. If we are going to want to milk an existing production line then it should be to assist our allies and friends in acquiring them, We can introduce, provide some training but we should not be buying anymore then we need.
Apologies for this being posted in the RAF thread admins & moderators.
That isn’t really how it works. For example the Australian land and ocean mass is broadly similar to the US - certainly not 1/20th the size. It is inappropriate to scale directly.
Basically the requirement would have been to provide a given amount of surveillance at a given range from a MOB for a given duration. Probably detailed and compared in a few separate vignettes.
The RAAF capability probably gives the ability for 3x Wedgetails, maybe 4 at a pinch to be deployed for a high intensity surge and the ability to maintain an aircraft for training at home, this would let the RAAF provide 1x orbit indefinitely. Alternatively as we have seen on OKRA, 1x aircaft for a long duration but not 24/7 ops.
The US would have similar requirement except with more operating areas/orbits.
Adding one or two more wedgetails would certainly add to our capability (not necessarily to allies depending on Context) however as mentioned above it comes at a cost to some other capability or extra budget to defence is required.
To tie this back to the RAF they have a significantly smaller UK landmass (albeit also with NATO commitments). Ultimately 5 aircraft will give them 1 guaranteed orbit with potentially 2 for a very limited period with small gaps in coverage (e.g during AAR).