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Post by supercuber173 on Aug 4, 2011 9:33:52 GMT 1
Why do some people put their servos lined up with the inside edge of the ailerons and not lined up in the middle?
I ask because when I made my ailerons on my cub i put it to where it is lined up in the middle...
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Post by flydiver on Aug 4, 2011 15:29:25 GMT 1
Servo placement on any plane is a function of multiple factors:
Will it fit? If the wing were thin you would have to put it in the thickest part. You can also compromise strength if improperly placed. Not a problem on the Cub wing as long as your servo isn't too big.
Weight. Servos can add to the overall wight of the plane and change the CG. How you use this is dependent on your needs and goals. Some delta planforms pretty much require a large servo way forward to help balance the plane out.
Control rod run. The longer your control rods get the more flexible they can become and you need to figure out how to mount and secure them. Short rods are simple and stiff but may compromise other more important criteria for a particular build.
For the Cub? Eh, it's such a forgiving platform you can get away with lots of stuff that might not work in a different plane.
Note: re-reading you question I think you mean set them on the inside near the fuse vs. farther out in the middle of the wing.
In that case closer needs a shorter servo wire. That way you may not need extensions. Weight farther out also can affect the wing and flight characteristics. Generally you want weight close to the center if possible.
If the aileron is stiff enough, a mount on the end will be OK. If the aileron is kind of flexible and you don't want to stiffen it (or can't for some reason) than a middle placement will be better.
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Post by supercuber173 on Aug 14, 2011 9:22:05 GMT 1
Cool, thx
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