RE: Flaps going in opposite direction.
Ugh......
As I said at the beginning, his TRANSMITTER would have fixed this....no need to flip servos or flip arms or worry about bellcranks. All of that talk made the problem seem 10X more complex than it was!!
This could have been fixed at the field in a few minutes. All he had to do was ditch the Y harness he probably had, ensure the 2 servos were on 2 different channels and set up the radio.
Is this disjointed thread typical of the beginner threads? Gosh I feel bad for the guy.