A New Three-Dimensional Aerodynamic Attitude Flight Envelope

Project: Research

Project Details


A new three-dimensional (3-D) space symmetric level aerodynamic attitude flight envelope is introduced in this project. The 3-D aerodynamic attitude envelope is an angle of attack vs. sideslip angle vs. altitude region which describes the extent of where an aircraft can sustain a steady slipping horizontal flight condition at different altitudes. The new envelope is thus a generalized extension of the more common speed-altitude symmetric level flight envelope. This new envelope can be used for design requirements, dynamic analysis, control synthesis, or performance comparison. Moreover, this envelope provides enhanced insight into trimability-controllability and ceiling limitations within the aircraft design model. The aerodynamic attitude flight envelope is constructed for a six degree of freedom nonlinear simulation model of a high-performance aircraft. The constructed envelope is found to be symmetric with respect to positive vs. negative sideslip values, due to the adapted and symmetrized aerodynamic model database by the author.
Effective start/end date1/11/1531/10/16


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