2641 lines
No EOL
34 KiB
HTML
2641 lines
No EOL
34 KiB
HTML
<html>
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<head>
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<title>Cessna 172 -- Nonlinear Model</title>
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</head>
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<BODY
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bgcolor="FFFFFF" text="000000" link="0800FF"
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vlink="FF0000" alink="FF0FF8">
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<font face="arial,helvetica">
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<center><h1><b><i>
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Cessna 172 -- Nonlinear Model
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</i></b></h1></center>
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<b><i>Graduate Research done by <a href="http://fly.to/jeffscott/">Jeff Scott</a><br>
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Advisor: <a href="http://www.uiuc.edu/ph/www/m-selig">Prof. Michael Selig</a><br>
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Applied Aerodynamics Group<br>
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Department of Aeronautical and Astronautical Engineering<br>
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University of Illinois at Urbana-Champaign, Urbana, Illinois 61801<p>
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Last updated April 10, 2000</i></b>
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<p>
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The linear aerodynamics model uses stability derivatives to approximate
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actual aircraft behavior. The Cessna 172 linear model is based on the
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following flight conditions:
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<p>
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<center>
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<table width="95%" border="1">
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<tr>
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<td colspan="7" bgcolor="FFFFCC">
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<font face="arial,helvetica" size="4"><b><center>
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Flight Conditions
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</center></b></font>
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</td>
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</tr>
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<tr>
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<th>
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<font face="arial,helvetica">
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Variable
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</font>
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</th>
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<th>
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<font face="arial,helvetica">
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Variable<br>in Code
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</font>
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</th>
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<th>
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<font face="arial,helvetica">
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Description
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</font>
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</th>
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<th>
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<font face="arial,helvetica">
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Units
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</font>
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</th>
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<th>
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<font face="arial,helvetica">
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Value(s)
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</font>
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</th>
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<th>
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<font face="arial,helvetica">
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Source
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</font>
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</th>
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<th>
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<font face="arial,helvetica">
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Notes
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</font>
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</th>
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</tr>
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<tr>
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<tr>
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<td valign="top">
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<font face="arial,helvetica">
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h
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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Altitude
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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altitude above sea level
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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ft
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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?
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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not available
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</font>
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</td>
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</tr>
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<td valign="top">
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<font face="arial,helvetica">
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<img src="../images/alpha.gif">
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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Alpha
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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angle of attack
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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deg
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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?
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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not available
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</font>
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</td>
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</tr>
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<tr>
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<td valign="top">
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<font face="arial,helvetica">
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V<sub><img src="../images/inf.gif"></sub>
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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V_true_kts
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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velocity (true air speed)
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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kts
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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?
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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not available
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</font>
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</td>
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</tr>
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<tr>
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<td valign="top">
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<font face="arial,helvetica">
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q
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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Dynamic_pressure
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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dynamic pressure
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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lb/ft<sup>2</sup>
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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?
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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not available
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</font>
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</td>
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</tr>
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<tr>
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<td valign="top">
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<font face="arial,helvetica">
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C.G.
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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-
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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center of gravity location
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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% <img src="../images/cbar.gif">
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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?
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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not available
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</font>
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</td>
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</tr>
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<tr>
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<td valign="top">
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<font face="arial,helvetica">
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C<sub>L</sub>
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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CL
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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lift coefficient
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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-
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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?
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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not available
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</font>
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</td>
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</tr>
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<tr>
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<td valign="top">
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<font face="arial,helvetica">
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C<sub>D</sub>
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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CD
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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drag coefficient
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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-
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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?
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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not available
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</font>
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</td>
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</tr>
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<tr>
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<td valign="top">
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<font face="arial,helvetica">
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C<sub>m</sub>
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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Cm
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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pitching moment coefficient
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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-
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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?
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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not available
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</font>
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</td>
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</tr>
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</table>
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</center>
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<p>
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The data input into the simulator is listed in the following tables:
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<p>
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<center>
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<table width="95%" border="1">
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<tr>
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<td colspan="7" bgcolor="FFFFCC">
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<font face="arial,helvetica" size="4"><b><center>
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Geometry
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</center></b></font>
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</td>
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</tr>
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<tr>
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<th>
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<font face="arial,helvetica">
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Variable
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</font>
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</th>
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<th>
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<font face="arial,helvetica">
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Variable<br>in Code
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</font>
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</th>
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<th>
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<font face="arial,helvetica">
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Description
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</font>
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</th>
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<th>
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<font face="arial,helvetica">
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Units
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</font>
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</th>
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<th>
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<font face="arial,helvetica">
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Value(s)
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</font>
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</th>
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<th>
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<font face="arial,helvetica">
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Source
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</font>
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</th>
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<th>
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<font face="arial,helvetica">
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Notes
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</font>
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</th>
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</tr>
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<tr>
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<td valign="top">
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<font face="arial,helvetica">
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b
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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bw
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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wingspan
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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ft
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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35.8
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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c172_aero.c
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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</font>
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</td>
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</tr>
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<tr>
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<td valign="top">
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<font face="arial,helvetica">
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<img src="../images/cbar.gif">
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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cbar
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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wing mean aerodynamic chord
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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ft
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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4.9
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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c172_aero.c
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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</font>
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</td>
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</tr>
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<tr>
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<td valign="top">
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<font face="arial,helvetica">
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S
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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Sw
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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wing surface area
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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ft<sup>2</sup>
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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174
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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c172_aero.c
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</font>
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</td>
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<td valign="top">
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<font face="arial,helvetica">
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</font>
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</td>
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</tr>
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</table>
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<p>
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<table width="95%" border="1">
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<tr>
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<td colspan="7" bgcolor="FFFFCC">
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<font face="arial,helvetica" size="4"><b><center>
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Control Surface Geometry
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</center></b></font>
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</td>
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</tr>
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<tr>
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<th>
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<font face="arial,helvetica">
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Variable
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</font>
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</th>
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<th>
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<font face="arial,helvetica">
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Variable<br>in Code
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</font>
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</th>
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<th>
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<font face="arial,helvetica">
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Description
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</font>
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</th>
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|
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<th>
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<font face="arial,helvetica">
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Units
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</font>
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</th>
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<th>
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<font face="arial,helvetica">
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Value(s)
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</font>
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</th>
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<th>
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<font face="arial,helvetica">
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Source
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</font>
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</th>
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<th>
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<font face="arial,helvetica">
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Notes
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</font>
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</th>
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</tr>
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|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
<img src="../images/delta.gif">e<sub>max</sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
demax
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
maximum elevator deflection
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
deg
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
+28
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
<img src="../images/delta.gif">e<sub>min</sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
demin
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
minimum elevator deflection
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
deg
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
-23
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
<img src="../images/delta.gif">a<sub>max</sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
damax
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
maximum aileron deflection
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
deg
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
+20
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
<img src="../images/delta.gif">a<sub>min</sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
damin
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
minimum aileron deflection
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
deg
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
-15
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
<img src="../images/delta.gif">r<sub>max</sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
drmax
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
maximum rudder deflection
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
deg
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
+16
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
<img src="../images/delta.gif">r<sub>min</sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
drmin
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
minimum rudder deflection
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
deg
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
-16
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<p>
|
|
|
|
<table width="95%" border="1">
|
|
<tr>
|
|
<td colspan="7" bgcolor="FFFFCC">
|
|
<font face="arial,helvetica" size="4"><b><center>
|
|
Mass Data
|
|
</center></b></font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Variable
|
|
</font>
|
|
</th>
|
|
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Variable<br>in Code
|
|
</font>
|
|
</th>
|
|
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Description
|
|
</font>
|
|
</th>
|
|
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Units
|
|
</font>
|
|
</th>
|
|
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Value(s)
|
|
</font>
|
|
</th>
|
|
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Source
|
|
</font>
|
|
</th>
|
|
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Notes
|
|
</font>
|
|
</th>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
GTOW
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
Weight
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
gross takeoff weight
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
lb
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
2300
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_init.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
converted to Mass <br>[slug/ft<sup>3</sup>] in code
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
I<sub>xx</sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
I_xx
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
roll inertia
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
slug ft<sup>2</sup>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
948
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_init.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
I<sub>yy</sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
I_yy
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
pitch inertia
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
slug ft<sup>2</sup>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1346
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_init.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
I<sub>zz</sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
I_zz
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
yaw inertia
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
slug ft<sup>2</sup>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1967
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_init.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
I<sub>xz</sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
I_xz
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
lateral cross inertia
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
slug ft<sup>2</sup>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
0
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_init.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<p>
|
|
|
|
<table width="95%" border="1">
|
|
<tr>
|
|
<td colspan="7" bgcolor="FFFFCC">
|
|
<font face="arial,helvetica" size="4"><b><center>
|
|
Propulsion Data
|
|
</center></b></font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Variable
|
|
</font>
|
|
</th>
|
|
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Variable<br>in Code
|
|
</font>
|
|
</th>
|
|
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Description
|
|
</font>
|
|
</th>
|
|
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Units
|
|
</font>
|
|
</th>
|
|
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Value(s)
|
|
</font>
|
|
</th>
|
|
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Source
|
|
</font>
|
|
</th>
|
|
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Notes
|
|
</font>
|
|
</th>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
T<sub>max</sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
simpleSingleMaxThrust
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
maximum thrust
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
lb
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
350
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_engine.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
use c172 engine model in code
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<p>
|
|
|
|
<table width="95%" border="1">
|
|
<tr>
|
|
<td colspan="7" bgcolor="FFFFCC">
|
|
<font face="arial,helvetica" size="4"><b><center>
|
|
Aerodynamic Data
|
|
</center></b></font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Variable
|
|
</font>
|
|
</th>
|
|
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Variable<br>in Code
|
|
</font>
|
|
</th>
|
|
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Description
|
|
</font>
|
|
</th>
|
|
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Units
|
|
</font>
|
|
</th>
|
|
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Value(s)
|
|
</font>
|
|
</th>
|
|
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Source
|
|
</font>
|
|
</th>
|
|
|
|
<th>
|
|
<font face="arial,helvetica">
|
|
Notes
|
|
</font>
|
|
</th>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>D<sub>0</sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
CDo
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
drag coefficient at <img src="../images/alpha.gif">=0
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
-
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
0.031
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>D<sub><img src="../images/alpha.gif"></sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
CD_a
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
drag curve slope
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
0.130
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
not used in code
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
K
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
CDK
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
induced drag constant, i.e. 1/(pi*e*AR)
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
-
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
0.054
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>D<sub><img src="../images/delta.gif">e</sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
CD_de
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
drag due to elevator
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
0.060
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
<img src="../images/delta.gif">e positive down
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>L</sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
CL
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
lift coefficient vs. angle of attack
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
-
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<pre>
|
|
<u> alpha CL </u>
|
|
-5 -0.14
|
|
0 0.31
|
|
10 1.21
|
|
12 1.276
|
|
13.75 1.51249
|
|
15 1.591
|
|
16 1.63
|
|
17.35 1.60878
|
|
18 1.53712
|
|
19 1.376
|
|
20 1.142</pre>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
<img src="../images/alpha.gif"> in deg
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>L<sub><img src="../images/alphadot.gif"></sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
CL_adot
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
lift due to angle of attack rate
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1.7
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>L<sub>q</sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
CL_q
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
lift due to pitch rate
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
3.9
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>L<sub><img src="../images/delta.gif">e</sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
CL_de
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
lift due to elevator
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
0.430
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
<img src="../images/delta.gif">e positive down
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>m<sub>0</sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
Cmo
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
pitch moment coefficient at <img src="../images/alpha.gif">=0
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
-
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
-0.015
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>m<sub><img src="../images/alpha.gif"></sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
Cm_a
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
pitch moment due to angle of attack
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
-0.89
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>m<sub><img src="../images/alphadot.gif"></sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
Cm_adot
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
pitch moment due to angle of attack rate
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
-5.2
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>m<sub>q</sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
Cm_q
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
pitch moment due to pitch rate
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
-12.4
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>m<sub><img src="../images/delta.gif">e</sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
Cm_de
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
pitching moment due to elevator
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
-1.28
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
<img src="../images/delta.gif">e positive down
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>Y<sub><img src="../images/beta.gif"></sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
CY_beta
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
side force fue to sideslip angle
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
-0.31
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>Y<sub>p</sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
CY_p
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
side force due to roll rate
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
-0.037
|
|
</font>
|
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</td>
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<td valign="top">
|
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<font face="arial,helvetica">
|
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c172_aero.c
|
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</font>
|
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</td>
|
|
|
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<td valign="top">
|
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<font face="arial,helvetica">
|
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|
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</font>
|
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</td>
|
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</tr>
|
|
|
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<tr>
|
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<td valign="top">
|
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<font face="arial,helvetica">
|
|
C<sub>Y<sub>r</sub></sub>
|
|
</font>
|
|
</td>
|
|
|
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<td valign="top">
|
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<font face="arial,helvetica">
|
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CY_r
|
|
</font>
|
|
</td>
|
|
|
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<td valign="top">
|
|
<font face="arial,helvetica">
|
|
side force due to yaw rate
|
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</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
0.21
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
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</font>
|
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</td>
|
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<td valign="top">
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<font face="arial,helvetica">
|
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|
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</font>
|
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</td>
|
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</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
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<font face="arial,helvetica">
|
|
C<sub>Y<sub><img src="../images/delta.gif">a</sub></sub>
|
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</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
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<font face="arial,helvetica">
|
|
CY_da
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
side force due to aileron
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
0
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
<img src="../images/delta.gif">a positive<br>right aileron up
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>Y<sub><img src="../images/delta.gif">r</sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
CY_dr
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
side force due to rudder
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
0.187
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
<img src="../images/delta.gif">r positive left
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>l<sub><img src="../images/beta.gif"></sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
Cl_beta
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
dihedral effect
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
-0.089
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>l<sub>p</sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
Cl_p
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
roll damping
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
-0.47
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>l<sub>r</sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
Cl_r
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
roll moment due to yaw rate
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
0.096
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>l<sub><img src="../images/delta.gif">a</sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
Cl_da
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
roll moment due to aileron
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
-0.178
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
<img src="../images/delta.gif">a positive<br>right aileron up
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>l<sub><img src="../images/delta.gif">r</sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
Cl_dr
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
roll moment due to rudder
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
0.0147
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
<img src="../images/delta.gif">r positive left
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>n<sub><img src="../images/beta.gif"></sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
Cn_beta
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
weathercock stability
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
0.065
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>n<sub>p</sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
Cn_p
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
adverse yaw
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
-0.03
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>n<sub>r</sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
Cn_r
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
yaw damping
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
-0.099
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>n<sub><img src="../images/delta.gif">a</sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
Cn_da
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
yaw moment due to aileron
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
0.053
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
<img src="../images/delta.gif">a positive<br>right aileron up
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
|
|
<tr>
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
C<sub>n<sub><img src="../images/delta.gif">r</sub></sub>
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
Cn_dr
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
yaw moment due to rudder
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
1/rad
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
-0.0657
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
c172_aero.c
|
|
</font>
|
|
</td>
|
|
|
|
<td valign="top">
|
|
<font face="arial,helvetica">
|
|
<img src="../images/delta.gif">r positive left
|
|
</font>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
</center>
|
|
|
|
<p>
|
|
<hr>
|
|
<p>
|
|
|
|
<h5><b><center>
|
|
<a href="http://amber.aae.uiuc.edu/~jscott/sis/">Flight Sim Home</a> *
|
|
<a href="../index.html">Aircraft Models</a> *
|
|
<a href="index.html">Cessna 172 Model</a> *
|
|
<a href="refs.html">Cessna 172 References<br>
|
|
</h5></b></center>
|
|
|
|
</font>
|
|
</body>
|
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</html> |