Recently the control concept of DSFC (Direct Side-Force Control) was suggested, and the flights in which the heading and the course azimuth can be controlled separately have become practicable. We call these flights of this type "DSF modes" in this paper.
We propose a control system for the flights of DSF modes. First we classify DSF modes into DSF mode 1, mode 2 and mode 3, and consider the simplest control scheme for each mode from a practical point of view. According to this control scheme we build a control system based on the decoupling theory in automatic control. Computer simulations used this system are then shown.