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Does anyone have any suggestions for the best
method of adjusting the flaps on a IV? We have the wings inverted on the
cradles; the right flap as set at the factory travels freely
throughout its motion with only a slight amount of friction in the fully
extended position. The left flap however was binding significantly
as it was set at the factory. We have tried many different combinations of
settings for the connecting rod and flap tie rod lengths and while improving on
the factory adjustment, we have not been able to achieve the freedom of movement
we see in the right flap. With the left flap in the fully extended
position, it takes a significant push to get it moving so it will "free-fall" to
the full up position and only moves freely in the center of the range of
motion. (Or we can get no binding toward either end of the range, but not
both). I can see that the problem is, for example, the inboard tie rod
will be too short at fully closed, but too long at fully extended, while the
outboard will be just the opposite. I am concerned that this may lead to
excessive wear on the mechanism or possibly overloading the motor.
Maybe I'm too concerned about this, as perhaps the
air loads in actual use will overpower any effect of the binding we are
seeing. Any thoughts or suggestions?
Pat Cohenour
IV-P
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