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Reply-To: panzera@experimental-aviation.com
In-Reply-To: <list-5070024@logan.com>
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Date: Tue, 2 Aug 2011 14:44:01 -0700
Message-ID: <CAMOiWoOFkjccJZLC-Avp56BJUPqAJhMHz-P0QW9OyTigwXOYog@mail.gmail.com>
Subject: Re: [FlyRotary] Re: PSRU
From: Pat Panzera <editor.contactmagazine@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Content-Type: multipart/alternative; boundary=20cf303f63725fa6ce04a98ca5ae

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It's not just stalled, portions of it is actually creating negative thrust
and the portions that are not contributing to thrust are creating drag on
the engine.

On Mon, Aug 1, 2011 at 4:57 AM, Tracy <rwstracy@gmail.com> wrote:

> No negative effects that I know of.   I used one for awhile on my RV-4 but
> was not happy with it's efficiency at high speed.   Worked great for takeoff
> & climb but area near hub was stalled and draggy at cruise & high speed.
>
> Works better on canards because that area is in turbulent air anyway.
>
> Tracy
>
>
> On Mon, Aug 1, 2011 at 1:48 AM, Samuel Treffinger <
> samuel.treffinger@gmail.com> wrote:
>
>> Tracy, do you know of any negative side affects of using a IVO magnum
>> inflight adjustable prop with your psru?? I think John Slade has that
>> configuration, but I was wondering if you reccommended it, or reccommended
>> against it.
>>
>> Sam
>>
>
>

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It&#39;s not just stalled, portions of it is=A0actually=A0creating negative=
 thrust and the portions that are not contributing to thrust are creating=
=A0drag on the engine.=A0<br><br><div class=3D"gmail_quote">On Mon, Aug 1, =
2011 at 4:57 AM, Tracy <span dir=3D"ltr">&lt;<a href=3D"mailto:rwstracy@gma=
il.com">rwstracy@gmail.com</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex;">No negative effects that I know of.=A0=A0 I=
 used one for awhile on my RV-4 but was not happy with it&#39;s efficiency =
at high speed.=A0=A0 Worked great for takeoff &amp; climb but area near hub=
 was stalled and draggy at cruise &amp; high speed.<br>

<br>Works better on canards because that area is in turbulent air anyway.<b=
r><font color=3D"#888888"><br>Tracy</font><div><div></div><div class=3D"h5"=
><br><br><div class=3D"gmail_quote">On Mon, Aug 1, 2011 at 1:48 AM, Samuel =
Treffinger <span dir=3D"ltr">&lt;<a href=3D"mailto:samuel.treffinger@gmail.=
com" target=3D"_blank">samuel.treffinger@gmail.com</a>&gt;</span> wrote:<br=
>

<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><div>Tracy, do you know of any negative side=
 affects of using a IVO magnum inflight adjustable prop with your psru?? I =
think John Slade has that configuration, but I was wondering if you reccomm=
ended it, or reccommended against it.</div>


<div>=A0</div><div>Sam</div>
</blockquote></div><br><div style=3D"padding:0px;margin-left:0px;margin-top=
:0px;overflow:hidden;word-wrap:break-word;color:black;font-size:10px;text-a=
lign:left;line-height:130%">
</div>
</div></div></blockquote></div><br>

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