If the pc-9 is the plane I am thinking it is, I will be a big jump from a trainer. You will be going from a high flat wing with low wing loading to a low symetrical wing with a high wing loading. If your arf is of scale design it will be fly fast and may be hard to keep up with. I have never flown one, but by the looks of it, it would be a 2nd or 3rd low wing. Not a 2nd plane all togeather. Look at the 4 star. Thats a great low wing sport trainger.



This image taken from [link=http://www.raaf.gov.au/index.htm]Royal Australian Air Force Web Page[/link]