MTC’s Canard Fin Control Actuation System converts unguided rockets into precision-guided munitions. The subsystem controls the position of 4 independent fins (each with an MTC brushless DC motor) in response to steering commands from a flight computer. The device consists of 4 actuators, fin position measurement sensors and a fin opening and closing system. An MTC gyroscope can be incorporated for roll measurement.
Datasheet: Canard Fin Control Actuation Systems