I am using in the Roo a futaba 7 channel rx and using the jetcat single channel operation I
can have all the features needed in this plane. I even have a mix in the 3-position switch to shut down the turbine, like the 2 channel operation. You also have the auto-cooling feature as cited above ny Kfalcon. this is a nice way to go if you want to use a 7 channel receiver or if you want to add a smoke system using a 8 channel Rx.

Enrique