Research Article

Flight Control Design for a Tailless Aircraft Using Eigenstructure Assignment

Table 4

Lateral disk gain and phase marginsa.

Gain margin (db)Phase margin (deg)Frequency (r/s)

Specifications ±4.5±30
±6.0±450.377 bending mode

±18.95 ±77.13 2.51
±10.18 ±55.58 3.52
±13.30 ±65.59 4.12
±4.78 ±30.02 3.10
±20.61 ±79.35 10.60
±13.58 ±66.34 2.51

±35.29 ±88.03 20.63
±18.96 ±77.14 7.07
±20.63 ±79.37 9.73
±7.72 ±45.31 3.53
±20.58 ±79.30 10.96
±13.57 ±66.32 1.80

aWeighted with .