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Old 06-11-2015, 01:28 PM
  #2  
Quorneng
 
Join Date: Oct 2009
Location: Lymm, UNITED KINGDOM
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340cudaman
For a given current draw and pich you will obtain the highest thrust from a 2 blade.
The 3 blade will have a smaller diameter but will draw more current to achieve the same thrust and pitch.
My advice would be to use the recommended 2 blade prop first then you will have something to compare the performance of the 3 blade against.