PC-21's for RAAF
Just out of curiosity (and apologies if this topic has already been raised), with the recent arrival of the first Pilatus PC-21 all through trainer aircraft for the RAAF, and expected completion of the delivery of the ordered 49 PC-21 in the next two or three years, what's the general opinion on what will become of the 60 odd PC-9's, and for that matter the remaining CT-4B's that will be replaced by the new Swiss aircraft? One could speculate by looking into the past, and deriving a conclusion based on what happened to the Macchi's when they had seen their time out, but I would like to think that the "9's" may well have a usefulness beyond what the Macchi's could fill. What do you think?