The components I've seen in my old dish washer sound similar. I would inspect the sprayer for cracks or blockage. If the water is not flowing evenly you may loose the spinning effect.
Based on your "airplane "description it sounds like you have some wobble in there. Again I would remove and inspect the mechanism and check dishes on both racks to see if one rack cleans better than the other.
Then post a model and more info.
Based on your "airplane "description it sounds like you have some wobble in there. Again I would remove and inspect the mechanism and check dishes on both racks to see if one rack cleans better than the other.
Then post a model and more info.