Title

Comparison of Vortex Lattice and Prandtl-Munk Results for Optimized Three-Surface Aircraft

Abstract

The results of Prandtl-Munk theory for prediction of the induced drag of three-surface general aviation aircraft have been examined and compared with vortex lattice results. Substantial differences between the two predictions have been shown in the presence of practical non-elliptic spanwise load distributions. At the same time, a parametric study has been carried out to determine the sensitivity of lift to induced drag ratio to different design variables. Using the resulting trends, a three-surface general aviation aircraft has been modeled and compared with its equivalent canard and conventional configurations. It has been demonstrated that while the three-surface geometry is more efficient than a canard configuration, it remains inferior to a conventional design.

Meeting Name

Aircraft Systems, Design and Technology Meeting

Department(s)

Mechanical and Aerospace Engineering

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1986 American Institute of Aeronautics and Astronautics (AIAA), All rights reserved.


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