Old 04-07-2015, 11:24 AM
  #11  
roadtrip
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Originally Posted by Gray Beard View Post
This is what Jenny mentioned, it's just a 1/16 piece of ply that was used to keep the prop off the back plate.
Makes you wonder why Great Planes doesn't make their aluminum spinner backplates with a raised, knurled center so that only the hub of the prop comes in contact with the backplate. I haven't found any other brand of spinner that doesn't do this.