Linear output - was Notes to Self 3

[Rcmaster199 at aol.com]

The latter, in my view. 
 
Servo output to surface deflection (mechanical set-up) is one thing. Stick  
movement to surface deflection, quite another. Not to belabor the obvious, we  
have expo galore available and each adjusts to his or her prefernce.
 
m2c
MattK
 
In a message dated 2/10/2005 1:02:12 PM Eastern Standard Time,  
atwoodm at paragon-inc.com writes:

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...
 
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  :)
 
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.
 
To me it's akin to  comparing two high end stereo systems both of which have 
specifications well  beyond the range of human hearing....
 
-Mark



 
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