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Old 8th Feb 2009, 20:17
  #54 (permalink)  
Join Date: Dec 2001
Location: Richmond Texas
Posts: 306
I guess that steel on sapphire is maybe 2 or 3 times better (C of F) than steel on brass. that's nowhere near as good as the coefficient of restitution of a good spring. Think tuning fork say. I think that you'll find that the jewelled bearing system was employed because of it's superior wear characteristics and constant behaviour under temperature change.

After an excellent landing you can use the airplane again!
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