Fig. 1. Variation of the control gain

Fig. 2. Tracking curves of the attack angle $\alpha$

Fig. 3. Tracking curves of the sideslip angle $\beta$

Fig. 4. Tracking curves of the bank angle $\gamma$

Fig. 5. Variation of the elevator ${\delta }_z$

Fig. 6. Variation of the rudder ${\delta }_y$

Fig. 7. Variation of the aileron ${\delta }_x$

Fig. 8. Variation of the sliding variable $s_{\mathrm{1}}$ in the pitch channel

Fig. 9. Variation of the sliding variable $s_{\mathrm{2}}$ in the yaw channel

Fig. 10. Variation of the sliding variable $s_{\mathrm{3}}$ in the rolling channel

Fig. 11. Variation of the control gain ${\chi }_{\mathrm{1}}$ in the pitch channel

Fig. 12. Variation of the control gain ${\chi }_{\mathrm{2}}$ in the yaw channel

Fig. 13. Variation of the control gain ${\chi }_{\mathrm{3}}$ in the rolling channel