Homemade autopilot/transmitter switcher

Hello.

I'm building and programming my own UAV using an Arduino Duemilanove. Yesterday I made a leap and the board is now controlling the servos and with fake position (no GPS connected yet) it tries to turn the plane to the right direction. 

 

The maiden flight approaches and for the first test flight I will need an auto/transmitter switcher. I saw the FailSafeMux in store but I wanted to make my own solution. 

 

The question now is. Could this work?


Concept:

A switching signal from the Arduino board decides whether to use the signals from the Arduino or from the receiver. (1 is Auto, 0 transmitter).

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