Im new as well so dont hold what I say in stone but usually the way it works is that you can use it on multiple receivers as long as you have the correct radio crystal... for example if you have crystal number 1 in transmitter it would work all the planes with the number 1 crystal in it.....

I think that as long as the plane does not require more channels that the transmitter has then your ok.... for example you could use a 4 channel for a 3 channel plane or a 4 channel but if it had 6 you would not be able to use all the functions needed for full operation...

hope this helps... but I would suggest contacting Hitec im sure they could answer all your questions as far as esc compatability