I have flown R/C airplanes for several years, and the time has come to buy my first heli. I'm looking for some basic information before I start. That's where I hope you can help me.

Which radio would you prefer, Hitec Eclipse 7 or Futaba T6XH, and why?

Will I need any special tools? Is it difficult to set pitch angles and other adjustments?

Is the main rotor running at constant rpm in flight? (I don't understand the link between throttle and pitch)