Employing Soft Computing Techniques to Study Stability and Control in Aircraft Design

F-14 Simulation Results The scenario used in the previous work of Fialho et al. was chosen to test the proposedcontrollerdesign.Figure 2 shows the two simulatedmaneuvers. Two pairs of 1-s, 1-in. (2.54-cm) stick inputs to the left and then to the right are applied at 1 and 5 s followed by two pairs of pedal inputs at 11 and 15 s. The comparison of the roll rate response to the stick input with the “ideal” closed-loop response in Fig. 2 shows tracking performance slightly superior to the already very good result shown in Ref. 1. The very small peak sideslip error of 0.06 deg is far better than the 0.8-deg error obtained in Ref. 1. The response to pedal inputs achieved almost perfect tracking of the sideslip angle and a limited residual roll rate responseof only 0.35 deg/s. This is much better than the 1 deg/s roll rate error presented in Ref. 1.