I was having a heck of a time tuning a large 4-stroke glow engine in a 1/4 scale plane. Tons of vibration and long periods of ground running trying to get it right. Well all of a sudden I notice the rudder has had nearly all it's hinges (CA) pull out and it's just hanging there. The hinges were still there and they just shoved back into the vert stab. So I just re-ca'd the rudder back on. Then I got to thinking that this may not have been a good idea. Anyone care to comment.