Development of methods for determining the influence of ground proximity on the longitudinal aircraft aerodynamic characteristics

Aviation technics and technology


Zakharov D. N.



During takeoff and landing aircraft is for some period of time near the earth's surface. Wind tunnel capacity and theoretical methods are not enough to describe the effect of ground proximity with given precision, taking into account a moving screen. A method to determine the longitudinal aerodynamic characteristics of aircraft was developed to select the control algorithms and to obtain mathematical modeling materials needed for the certification of aircraft Tu-204/214 and Tu-334 during landing of the 3d A category. The development of requirements specification and flight tests data processing technique for Tu-204CM is based on this method.


influence of the earth proximity; air cushion; screen effect; slant; takeoff; automatic landing

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