Motors can be controlled independently for some control in the yaw, it can be done with a mix in the radio and the yaw ...
I normally use flight controllers in quadcopters, but you can use them for airplanes too, there are a handful of benefits when using an fc in a fixed wing, like stabilization, osd in your fpv system, ...
Developed by Hughes through the F-111 program, the AWG-9, mated with the AIM-54 Phoenix, made the Grumman F-14 Tomcat the most deadly fleet defense weapon ...