A method is presented, which describes the flight path in analytical form with respect to the flare maneuver of the pilot and the wind shear, occuring during the landing flare. The equations of motion were transposed in such a way that systematic treatment of the problem areas was possible. Examples of this approach are given for conventional and short takeoff type landing flare of a large transport aircraft. The influence of coupled control (direct lift control) is shown. It was found that: maintenance of a control function selected by the pilot leads to a reduction in the decay of flight path angle when wind velocity decreases; to achieve touchdown conditions comparable to the undisturbed case, the pilot must vary his control function; a comparison with flight tests shows that a flare path in the form of a fourth order parabola realistically reproduces the actual conditions; and the control function to achieve this flare path can contain a progressive component in addition to the linear increase in pitch attitude.
Investigation of Landing Flare in the Presence of Wind Shear
1980
51 pages
Report
No indication
English
Aeronautics , Aircraft , Dynamic Meteorology , Aircraft landing , Descent trajectories , Equations of motion , Flight paths , Wind shear , Comparison , Direct lift controls , Flight tests , Incidence , Loads (Forces) , Mathematical models , Pitch (Inclination) , Short takeoff aircraft , Wind velocity , Foreign technology , Translation
Investigation of Landing Flare in Presence of Wind Shear
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