Here is the 4th test flight of KDS Innova 550E FBL heli. We are still tweaking FS600 and this time we thought maybe Dual rates and expos on Aileron and Elevator will help reduce ballooning but nah, we have to tweak this FS600 that is starting to get on my nerves now. KDS 550E Innova however is a Fine high quality, superb sounding and ultimate 3D machines from KDS Shenzhen. KDS innova 550E FBL is one great heli that brings you joy of thrilling 3D flight and at the same time makes you sweat with its super fast and ultimate powerful performance. Comments and feedback welcome at [email protected] or [email protected] Don't forget to Subscribe to