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Old 1st March 2010 | 15:20
  #538 (permalink)  
lamanated
 
Joined: Apr 2004
Posts: 80
Likes: 1
From: canada
We just did a 1500 hr, and had the hammers done, as well as the main rotor balance, and the last little weight, made a big difference in the floor vibrations you feel. 412 is the rpm to balance at.
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