Author
Abstract
For lateral-directional stability analysis, the horizontal tail geometric
parameters effect has not been considered. In the present work, the effect of
horizontal tail aspect ratio on the lateral-directional stability derivatives,
rolling static, lateral dynamic stability and Routh discriminate of the airplane
is investigated.
The increasing of the horizontal tail aspect ratio improves both the rolling
static stability and damping ability in the rolling convergence mode and
decreases the damping ability in spiral mode. The results could be used as real
design requirements for further configuration improvements of the airplane.
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