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Old 06-18-2010 | 02:11 PM
  #5  
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Lnewqban
 
Joined: Apr 2007
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Default RE: Is this normal?

Pete,

They crack because they are supported from one point, and vibration and field hits overstress the material.

Check these old threads out:

http://www.rcuniverse.com/forum/m_27.../tm.htm#279862

http://www.rcuniverse.com/forum/m_71...tm.htm#7167382