RE: Patternship for YS-140FZ
In my experience, the FZ will just barely be enough but it should fly the plane well for intermediate. IF its a very good running FZ that isnt too worn and is capable of developing most of its original HP potential.. I had an older one on my Prophecy and I felt just very slightly underpowered, especially when the weather temperature got up in the 90's (32- 37C) during the summer and I live at sea level. I ran a 15x11 or a 16x10 on mine. The 140 sport would probably be better but hey, you have to work with what you got and the FZ should suffice.