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A Flight Dynamics Model for a Small Glider in Ambient WindsIn this paper we describe the equations of motion developed for a point-mass zero-thrust (gliding) aircraft model operating in an environment of spatially varying atmospheric winds. The wind effects are included as an integral part of the flight dynamics equations, and the model is controlled through the three aerodynamic control angles. Formulas for the aerodynamic coefficients for this model are constructed to include the effects of several different aspects contributing to the aerodynamic performance of the vehicle. Characteristic parameter values of the model are compared with those found in a different set of small glider simulations. We execute a set of example problems which solve the glider dynamics equations to find aircraft trajectory given specified control inputs. The ambient wind conditions and glider characteristics are varied to compare the simulation results under these different circumstances.
Document ID
20040031358
Document Type
Technical Memorandum (TM)
Authors
Beeler, Scott C. (National Inst. of Aerospace Hampton, VA, United States)
Moerder, Daniel D. (NASA Langley Research Center Hampton, VA, United States)
Cox, David E. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 7, 2013
Publication Date
November 1, 2003
Subject Category
Aerodynamics
Report/Patent Number
NASA/TM-2003-212665
L-18338
Funding Number(s)
WORK_UNIT: WU 23-762-40-41
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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