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Hi, fellow rotorary enthusiasts....I need to ask the group a question.  I now have a street ported 4 port turbo engine, into which I was going to put my 9.4 NA rotors and rotor housings.  If I pick up a set of 9.7 rotors, do I have to change anything else, ie concentric shaft counterweight, etc, or can I just swap rotors?  I have read that you need the correct balance counterweight, but I assumed that is to balance the concentric shaft, not the rotors?  If I can just swap out rotors, and it would have no effect on balance or anything else, I would go ahead with the swap.  Thanks in advance for all your replies. Paul Conner

From: Paul <sqpilot@bellsouth.net> Subject: [FlyRotary] 9.7 rotors Date: Mon, 10 Jan 2005 16:47:54 +0000 To: Rotary motors in aircraft <flyrotary@lancaironline.net>

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