Futaba 3004 servos work fine for 40-60 size airplanes.

However, I've been flying these planes since 1973 and found out my 4 channel radios will make my planes fly just as well as any 6 or 7 channel radio will.

The only programming I have to do on my 4 channel radios is turning it off or on and setting the trim levers.

As a beginner, if you don't have that Futaba 7C programmed right, you can kiss your plane goodbye!

Whether you're an electrician or not!

big dan