From: keltro@att.net
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: It Still Runs
Date: Mon, 29 Mar 2004 07:09:35 +0000
Message-Id: <032920040709.4435.49b@att.net>

   Steve and All,
      The IVO Magnum has two pitch ranges available. 30" to 90" and the 
  so called Hi-Pitch 45" to 105" blades. You may need to talk to IVO to
  find out how to tell which blades you have. FYI

   Kelly Troyer

--
Dyke Delta/13B Rotary Power	
		
			
			
			
> Ed,
> things are definitely moving forward. This is a great weekend weather wise
> to get my priming done, or at least the first round of it.
> 
> I kept the engine turned over quite often.  Just about every time I worked
> on the plane I would turn the prop a couple times.  I got turn over at least
> once or twice a week.  I did a little tuning yesterday, only for a couple
> MAP points, but it went well, and definitely makes a difference in the
> smoothness.
> 
> The prop is a blade 72" Ivoprop Magnum.  It has the high pitch blades, but I
> don't remember the range.  I know it goes up to 90 on the pitch, but I don't
> remember the bottom number.  I had already bought the prop when I heard
> about another incident with cracking blades.  I though that problem was
> behind them, but it was on a Lycoming, so I'm hoping that I won't have any
> problems running on the smoother rotary.  I really like the concept of the
> design, and down the road I can add the in-flight adjust motor for only
> $900.  Right now, it is what they call a ground quick adjust.  I'm not sure
> how much pitch I have right now.  I cranked in only a little bit, but the
> blades has a pretty good pitch to them to start with.  I will be keeping a
> very wary eye on the prop for any signs of cracking.
> 
> I'll just adjust the prop to get the proper static RPM.
> 
> 2 questions.  What RPM are you using for idle ?  What static RPM is best for
> a starting point ? I was thinking that it was in the 4800-5000 RPM range,
> but I may be wrong.
> 
> Steve Brooks
>