Quigleywins : If you are trying the Butterfly on your own and not used to flying be FORWARNED that even with smaller engines they have a habit of going UP in a hurry. Sometimes straight up if you have the settings to high. I'd suggest you apply power fairly slow to start and be ready for anything.
Once you have flown it a couple times it won't be any problem, it's just that first time. NICE PLANE ! ENJOY !!! RED