Mailing List flyrotary@lancaironline.net Message #20190
From: George Lendich <lendich@optusnet.com.au>
Subject: Re: [FlyRotary] Re: Fw: Rx-8 Rotors useable in 91 13B?
Date: Wed, 13 Apr 2005 17:02:15 +1000
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Bill,
If you find out before I do will you let me know about the additional depth to be cut.
On the balancing; I have to cover all that with my one rotor ( no biggie), I can give you all that stuff a little down the track it will only require lightening the counter balance weights a little.
 
The e-shaft is the same, the rotors lighter = lighter balance weights.
There may be some oil volume difference (read weight) , but I should have that soon, as well the rotor weight. BTW Tracy's apex seals are 33 grams ( per rotor) - got them to-day.
 
Has anyone got a set of new Mazda apex seals handy to weigh - I guess there wouldn't be much in it anyway - just curious!
 
George ( down under) 
I am going to look into this a bit more and find out how much to mill a rotor.  A lighter rotor => more rpms without increasing stress?
 
Ed Don't forget lighter rotors would require different balance weights. I have heard from various sources that the Renesis rotor was lighter and then that they weigh the same! Both from usually reliable sources, go figure.
Bill Jepson
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