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How many of us would buy a new set of tires for a car and not have them
dynamically balanced? You'd have to be brain dead, right?  I wonder why there
has bever been any discussion on balancing aircraft wheels.  These little
tires spin up to very high speeds compared to autos. I walked up and down
the line of parked planes at the local airport(BVY) today and there was
not a balance weight to be seen anywhere.  Typically, the nosewheel is
lightly loaded at its highest rotational speed at takeoff and landing so
if a wheel is out of balance to begin with, shimmy would be most likely to
occur at high speed.  Have any of you with shimmy experience had your
nosewheels cheked for dynamic imbalance?

Angier Ames

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