Well balanced propellors reduce vibrations. Balance your props! It's not always a heavy blade. Could be the hub is out of balance.</p>

I have seen the following methods used successfully before. You must assume responsibility for your own actions and use them at your own risk.</p>

Use a good 360 degree balancer like the High Point or DuBro copy of the High Point. Let the prop seek its own position after a light spin (do this more than once) in a no breeze/fan situation. When the prop stops spinning, the spot directly below the spindle is the heavy spot. Double check it. Mark it with a pencil or Sharpy. Remove the prop from the spindle so as not to bend/damage it which will render it useless. Either remove material from the heavy spot (on wood props) and/or add weight to the light side (directly opposite the heavy). </p>

Never sand the face (back side facing the airplane on tractor mounted props) of a blade unless you are trying to change or match the pitch. If you must sand a heavy blade, sand the airfoiled side lightly. A better method is to add weight/paint to the light blade tip. The only time to add weight or sand a blade is when the prop stops/hangs vertically on the balancer. Remember, the spot directly beneath the balancer spindle is the heavy spot and exactly opposite that is the light spot.</p>

Terry in LP</p>

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