Aiyura

So, I am new. This question will make that clear.

I have 2 trainers. NexStar and a Cessna 182.
The Nexstar came fully loaded.
The Cessna I had to assemble. Which is going great.
I am now at the point where I need to purchase the radio. My question:
It says it needs "4 channels, 5 servos".

I am confused by this. If I purchase a 4 channel radio, a 5 channel receiver. Will that work?
help.....

Thanks all