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Aileron rebalancing

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Hi i have encountered a problem with aileron re-balancing. Apparently, we cant re-balance the cg of the aileron back to the hinge despite adding the maximum amount of ballast permitable at all the balancing stations. What causes this phenomenon? Apparently there isn't any additional weight induce on the aileron due to repair however the cg just seems to shift farther away from the hinge. Also what will happen should the ballast added exceeds the allowable quantity at each individual station. Thanks.

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It would help if I could see your setup for checking the balance to see if everything is being done correctly. Also, ensure that your scale is in calibration and being place in the correct spot for weighing. If nothing has been done to the aileron and it is out of balance, it either has always been that way or some critter crawled in there and died in an unfortunate location.

If you are doing everything correctly and it still will not come back to the limits, then you'd either have to get engineering approval to add more weight or you'd have to replace your aileron.

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Actually i am just wondering is there any reason why only 2 ballast is permitted at each station? What happens if you put more lets say 3 or 4? And is there any possibility that the aileron might be distorted from the different aerodynamic load in the air hence causing the aileron to be unable to be balanced even when the maximum amount of ballast has been use.

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A few things:

Do you have it set at the correct angle?

Are there any significant repairs to the trailing edge?

Have any of the skin panels been replaced?

Check the weights, we have had two instances where the weights were "locally machined" where their weight was removed.

If you still run into problems, get your LM Tech Rep or call the Hercules Support Center 770-431-6549.

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