hello,

i'm going to build a depron rc aircraft and i need some help...

the aircraft will contain 6ch transmitter&receiver 70mm EDF some servos motor and an ESC....
my questions are...
can i connect more than 1 servo in 1ch in the receiver?
the motor i'm interesting in is working with 22.2v battery but everything else with 7.2v, what i can do to combine them?? is it possible??
why the ESC is needed?

thank you very much!