I currently use one of my older 8U's with the phoenix sim. The 8U can be changed over to PPM in the radio setup menus. I don't think it will make a difference as the transmitter does not to be turned on when plugged in. I have found that the stock settings for the 9C that are available in the sim software work just fine with my 8U. I have not attempted to set it up for helicopters as I don't fly those cursed things anyway .......[sm=52_52.gif]