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Old 03-27-2005 | 11:30 AM
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kregan's Avatar
kregan
 
Joined: Nov 2004
Posts: 1,895
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From: Highland, MD
Default Servo geometry ?

I am doing the final setup of my control surfaces and I have a question
about the servo linkage geometry...

I will use the elevator as an example:

With the servo arm set to 1.25" from the center of the servo,
and the elevator linkage set to 1.25" from the hinge line to
the linkage point (a 1 to 1 ratio) I have to adjust my radio
as follows....

High rate 88% Low rate 25% - It seems to me that I am loosing
a lot of servo resolution doing it this way.

Now if I set the servo arm to 1.15" to maintain a 1 to 1 ration I
need to move the elevatro arm in aslo to 1.15". It helps a little,
High rate now at 94% and low rate around 30%.

Am I mistaken that I should be trying to keep a 1 to 1 ratio on the
servo arm and elevator linkage?

What rates are you guys getting?

I would think this would be ever worse with the 1.5" arms some of you
are using?

Thanks for the help