Replacing Servos?

Posted by NY_Rebel:

"If you replace servos with other than the stock servo there are a few things you should know.
1. Keep all three servos the same (same brand and part #). The reason for this is, servos of different makes and/or part #'s move at different rates and since collective moves all three servos in unison, any difference in movement will drastically affect the flight characteristics.
2. Almost all the servos on the market move in the opposite direction from the stock servo.

Now, if you go with other than stock walkera servos there are two ways this can be fixed.
One way is to disassemble the servo and change the wires on the pot. This is described in detail elsewhere in this thread. Do a thread search and you should be able to find it. You only need to do this on the elevator servo, since the aileron servos can be manipulated to move either direction...

To accomplish servo movement reversing without fear of decimating your brand new servos...simply swap sides on the aileron servos mounting position (move the wires on the Rx is easier if servos are already in holder).
The elevator servo is also easy to manipulate, reverse the position of the servo mount on the main frame, mount the servo with it's shaft on the opposite side and then flip the #1 dip on the Tx to get the correct directional movement. See pic below that shows new servo mount orintation.

You may find some of the info in this thread beneficial when reversing the servos by changing their mount orintation. Post #2 has info about servos. http://www.rcuniverse.com/forum/m_5398512/tm.htm "