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<DIV><FONT face=Arial size=2>I'm not an AE but if I look at curves of alpha per
delta (angle of attack for a given control surface deflection) and CL per alpha,
it looks like the change in lift for a given change in deflection is constant
and therefore the aero is linear. Any comments from the aero
guys?</FONT></DIV>
<DIV><FONT face=Arial size=2>Jim</FONT></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=atwoodm@paragon-inc.com href="mailto:atwoodm@paragon-inc.com">Atwood,
Mark</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">NSRCA Discussion List (E-mail)</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, February 10, 2005 10:04
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Linear output - was Notes to
Self 3</DIV>
<DIV><BR></DIV>
<DIV>
<DIV><SPAN class=117045117-10022005><FONT face=Arial size=2>Ok...I have a
question for the Aeronautical engineers in the group... All of
this discussion has been centered around an assumed desire to get a linear
relationship between our stick movement, and that of the control
surface. Clearly the effect of moving a control surface on the aircraft
is proportional to the amount of movement...but is it linear?? I have to
beleive it's not... Just don't know the mechanics behind
it...</FONT></SPAN></DIV>
<DIV><SPAN class=117045117-10022005><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=117045117-10022005><FONT face=Arial size=2>Assuming it's
not...(And I'm betting for some portion of the throw is close enough to be
considered linear and then at higher deflections it becomes either more or
less efficient) is there really a purpose to trying to exact the linear nature
of the stick/control surface linkage...or it is an exercise in retentiveness
:)</FONT></SPAN></DIV>
<DIV><SPAN class=117045117-10022005><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=117045117-10022005><FONT face=Arial size=2>I also know that
our spring tension on the sticks in not linear...especially around center...so
it seems unlikely that what "Feels" linear isn't anyway.</FONT></SPAN></DIV>
<DIV><SPAN class=117045117-10022005><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=117045117-10022005><FONT face=Arial size=2>To me it's akin to
comparing two high end stereo systems both of which have specifications well
beyond the range of human hearing....</FONT></SPAN></DIV>
<DIV><SPAN class=117045117-10022005><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=117045117-10022005><FONT face=Arial
size=2>-Mark</FONT></SPAN></DIV>
<DIV><SPAN class=117045117-10022005><FONT face=Arial
size=2></FONT></SPAN> </DIV></DIV></BLOCKQUOTE></BODY></HTML>