Sirrom,
Thanks for the explanation. I 'm sorry that you lost your BobCat, but know that if you only had one servo that stripped it's gears, it still would have crashed. That's why the metal geartrain is a good idea. Perhaps an 8411 or equivalent would be in order if you wish to go with the single elevator in your next BobCat.
We can all profit from this exchange. Using equipment that is stout enough to handle the loads should be foremost in our minds when we gear up.
When we go to meets, and place our ships on the runway for the noontime spectator lineup, we need to be aware that many spectators, especially the younger ones, don't have the knowledge or appreciation of the complexity and the fragility of our creations. How many control surfaces have you seen bumped by a spectator? I've seen several geartrains stripped this way.
This can and has cause the loss of some good airplanes. I won't use any plastic geared servo on an elevator or aileron again.


Harley Condra
BVM REP