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Message-ID: <20050116135714.90984.qmail@web51103.mail.yahoo.com>
Date: Sun, 16 Jan 2005 05:57:14 -0800 (PST)
From: Steve Brooks <prvt_pilot@yahoo.com>
Subject: Re: [FlyRotary] IVO Prop
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
In-Reply-To: <list-608174@logan.com>
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Joe,
I have an IVO on my Cozy pusher, but I don't have the
in flight adjustable option.  Only ground adjustable.

I plan to add the in flight adjustment option later
on, if I stick with the IVO.  

I have the 3 blade 72" 45-105 high pitch blades.  I've
heaard that the IVO doesn't have a good top end due to
drag caused by the flatness of the blades near the
hub.  I don't know how that will impact a pusher
though, since the center of the prop is blocked out by
the engine cowling anyways.  

I haven't done any high speed testing yet, and don't
even have wheel pants on the plane yet.  Fastest I've
been is about 150 kts. at about 65% power.  I didn't
think that was too bad with no wheel pants.

The main reson that I went with the IVO was that I
didn't really didn't know how much pitch I needed on
the prop, and it was the cheapest option.  He also
sent me the spacers to go to a 2 blade configuration,
saying that it would probably give me a higher top
end. I talked with Catto also, but at the time, he was
avoiding auto conversions, because he had to re-pitch
several props.  I think that he has since changed his
position on that.


Steve Brooks
Cozy MKIV
Turbo Rotary
--- Joe <jewen@comporium.net> wrote:

> MessageDoes anyone have any experience or opinions
> using an IVO Magnum Inflight Adjustable prop with a
> rotary?  I am considering the IVO for use with my
> Velocity / Renesis and would appreciate any coments.
> 
> Thanks,
> Joe