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Date: Thu, 22 Dec 2011 18:39:56 +0800
Message-ID: <CAJxaVD1uF+xkO1WO41a7Ux7GEvErmbuePcgzk5kBydDDX9K26A@mail.gmail.com>
Subject: Re: [FlyRotary] Re: off topic, propeller carving and paint
From: Andrew Martin <andrew@martinag.com.au>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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whats with assuming max rpm is 6000, I intend to use a CS prop with Tracy's
2.85 drive so I can rev the renesis out to 7500rpm when needed and dial it
down when not, correct me if I'm wrong but doesn't more rpm + more fuel =
more power. Ernest's drive should be able to withstand 8500-9000 rpm. Way
to go! up there in Lynn's league.


Andrew

On Thu, Dec 22, 2011 at 4:08 AM, Bill Bradburry <bbradburry@bellsouth.net>wrote:

> That is true, but if I was going to go with something else, I would try to
> find something that will turn my prop close to the 2700 that most props are
> designed for.  That means that I would look for something in the 2.2-2.4
> ratio range, not 3.17.  That ratio will mean your prop will never get more
> than 2000 rpm with the rotary.
>
> Bill B
>
> -----Original Message-----
> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
> Behalf Of Ernest Christley
> Sent: Wednesday, December 21, 2011 2:26 PM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] Re: off topic, propeller carving and paint
>
> Bill Bradburry wrote:
> > Tracy's PSRU ratio is either 2.17 turning backwards (A,B) or 2.85
> > turning forward (C) I think??
> >
> >
>
> And it is a good product; but, it's not the only PSRU in the world.
>
>
> --
> Homepage:  http://www.flyrotary.com/
> Archive and UnSub:
> http://mail.lancaironline.net:81/lists/flyrotary/List.html
>
>
> --
> Homepage:  http://www.flyrotary.com/
> Archive and UnSub:
> http://mail.lancaironline.net:81/lists/flyrotary/List.html
>

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whats with assuming max rpm is 6000, I intend to use a CS prop with Tracy&#=
39;s 2.85 drive so I can rev the renesis out to 7500rpm when needed and dia=
l it down when not, correct me if I&#39;m wrong but doesn&#39;t more rpm + =
more fuel =3D more power. Ernest&#39;s drive should be able to withstand 85=
00-9000 rpm. Way to go! up there in Lynn&#39;s league.<div>
<br></div><div><div><br></div><div>Andrew<br><br><div class=3D"gmail_quote"=
>On Thu, Dec 22, 2011 at 4:08 AM, Bill Bradburry <span dir=3D"ltr">&lt;<a h=
ref=3D"mailto:bbradburry@bellsouth.net">bbradburry@bellsouth.net</a>&gt;</s=
pan> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">That is true, but if I was going to go with =
something else, I would try to<br>
find something that will turn my prop close to the 2700 that most props are=
<br>
designed for. =A0That means that I would look for something in the 2.2-2.4<=
br>
ratio range, not 3.17. =A0That ratio will mean your prop will never get mor=
e<br>
than 2000 rpm with the rotary.<br>
<br>
Bill B<br>
<div class=3D"im"><br>
-----Original Message-----<br>
From: Rotary motors in aircraft [mailto:<a href=3D"mailto:flyrotary@lancair=
online.net">flyrotary@lancaironline.net</a>] On<br>
</div><div class=3D"im">Behalf Of Ernest Christley<br>
Sent: Wednesday, December 21, 2011 2:26 PM<br>
To: Rotary motors in aircraft<br>
</div><div class=3D"im">Subject: [FlyRotary] Re: off topic, propeller carvi=
ng and paint<br>
<br>
</div><div class=3D"im">Bill Bradburry wrote:<br>
&gt; Tracy&#39;s PSRU ratio is either 2.17 turning backwards (A,B) or 2.85<=
br>
&gt; turning forward (C) I think??<br>
&gt;<br>
&gt;<br>
<br>
</div>And it is a good product; but, it&#39;s not the only PSRU in the worl=
d.<br>
<span class=3D"HOEnZb"><font color=3D"#888888"><br>
<br>
--<br>
Homepage: =A0<a href=3D"http://www.flyrotary.com/" target=3D"_blank">http:/=
/www.flyrotary.com/</a><br>
Archive and UnSub:<br>
<a href=3D"http://mail.lancaironline.net:81/lists/flyrotary/List.html" targ=
et=3D"_blank">http://mail.lancaironline.net:81/lists/flyrotary/List.html</a=
><br>
<br>
<br>
--<br>
Homepage: =A0<a href=3D"http://www.flyrotary.com/" target=3D"_blank">http:/=
/www.flyrotary.com/</a><br>
Archive and UnSub: =A0 <a href=3D"http://mail.lancaironline.net:81/lists/fl=
yrotary/List.html" target=3D"_blank">http://mail.lancaironline.net:81/lists=
/flyrotary/List.html</a><br>
</font></span></blockquote></div><br>
</div></div>

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