Do all gas engine planes require 4 channels?
Wings,
This computer radio has a 6 model memory which means it can stor the trim settings the direction each servo moves for 6 seperate model (much simpler than trying to remember to reverse servos before you fly) also you can program a computer radio to do things such as fleperons, v-tail, elevon, channel mixing etc. the 6EXA is about the cheapest you will find for a 6 channel radio alone mine came with 5 servos (different ad now you get a $10 rebate) a tx and rx battery, and a reciever
As for a plane, the Sig LT 40 trainer is an excellent choice that you can buy as an ARF if you just want to get in the air, or a kit so you can see one of your own creations fly either way its a great choice the price for starting into any hobby is high, but if you get what you need the first time the price is fairly reasonable after that
GOOD LUCK