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From: "Kelly Troyer" <flyrotary@lancaironline.net>
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Date: Tue, 26 Jul 2016 22:40:41 -0500
Message-ID: <CAKEmuZ-s2f=MDTxZ548q+51ixd-mSV1CgmWci1gvg0YaSZaeog@mail.gmail.com>
Subject: Re: [FlyRotary] Re: New PSRU on the Horizon
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Content-Type: multipart/alternative; boundary=001a113e4d621d349e053895c8de

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Charlie,
   On your question about a 2.85 you need to send an e mail to
Randy..........

Best
Kelly

On Tue, Jul 26, 2016 at 10:00 PM, Charlie England <
flyrotary@lancaironline.net> wrote:

> On 7/26/2016 8:41 PM, Kelly Troyer wrote:
>
> Group,
>
>    This will be of interest to the Group.........Randy Kempf of
> http://www.rotarpower.com/ in collaboration with
> Neil Unger of Australia is gearing up to produce a new PSRU  that would
> seem to eliminate any weak points
> in Tracy Crook's popular RDx searies of PSRU's.........Check out his
> website and the PSRU page........
>
>
> Kelly Troyer
>
>
> Hi Kelly,
>
> Thanks for the update. It's great that a drive will be available again,
> but it's a shame he chose such a wide ratio. Hardly anyone will want to
> operate the engine at 8k rpm, and even if they do, it will need a larger
> diameter prop than most homebuilts can swing safely, due to ground
> clearance issues. More typical operating rpms down in the 6k range mean
> sub-1800 prop rpm, which begs an even larger diameter prop.
>
> Any chance he'll offer the more conventional 2.85? (Something closer to
> 2.5 would be even nicer, to get prop rpm closer to the design point for
> most homebuilt airframe/engine combos.)
>
> Charlie
>



-- 
Kelly Troyer
Dyke Delta_"Eventually"
13B_RD1C_EC2_EM2

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<div dir=3D"ltr">Charlie,<div>=C2=A0 =C2=A0On your question about a 2.85 yo=
u need to send an e mail to Randy..........</div><div><br></div><div>Best</=
div><div>Kelly</div></div><div class=3D"gmail_extra"><br><div class=3D"gmai=
l_quote">On Tue, Jul 26, 2016 at 10:00 PM, Charlie England <span dir=3D"ltr=
">&lt;<a href=3D"mailto:flyrotary@lancaironline.net" target=3D"_blank">flyr=
otary@lancaironline.net</a>&gt;</span> wrote:<br><blockquote class=3D"gmail=
_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:=
1ex">
 =20
   =20
 =20
  <div bgcolor=3D"#FFFFFF" text=3D"#000000"><div><div class=3D"h5">
    <div>On 7/26/2016 8:41 PM, Kelly Troyer
      wrote:<br>
    </div>
    <blockquote type=3D"cite">
      <div dir=3D"ltr">
        <div>
          <div style=3D"display:table-cell;width:auto;word-wrap:break-word"=
>
            <div>
              <div>
                <div>
                  <div><span>Group,</span></div>
                  <div><span><br>
                    </span></div>
                  <div dir=3D"ltr"><span>=C2=A0 =C2=A0This
                      will be of interest to the Group.........Randy
                      Kempf of =C2=A0<a rel=3D"nofollow" href=3D"http://www=
.rotarpower.com/" style=3D"margin:0px;padding:0px;color:rgb(25,106,212);out=
line:none;background-image:initial;background-color:transparent;background-=
position:initial;background-repeat:initial" target=3D"_blank">http://www.ro=
tarpower.com/</a>=C2=A0in
                      collaboration with</span></div>
                  <div dir=3D"ltr"><span>Neil
                      Unger of Australia is gearing up to produce a new
                      PSRU =C2=A0that would seem to eliminate any weak poin=
ts</span></div>
                  <div dir=3D"ltr"><span>in Tracy
                      Crook&#39;s popular RDx searies of
                      PSRU&#39;s.........Check out his website and the PSRU
                      page........ =C2=A0</span></div>
                  <div dir=3D"ltr"><span><br>
                    </span></div>
                </div>
              </div>
            </div>
          </div>
        </div>
        <div>=C2=A0</div>
        <div>
          <div>Kelly
            Troyer</div>
        </div>
        <div><br>
        </div>
        <br>
      </div>
    </blockquote></div></div>
    Hi Kelly,<br>
    <br>
    Thanks for the update. It&#39;s great that a drive will be available
    again, but it&#39;s a shame he chose such a wide ratio. Hardly anyone
    will want to operate the engine at 8k rpm, and even if they do, it
    will need a larger diameter prop than most homebuilts can swing
    safely, due to ground clearance issues. More typical operating rpms
    down in the 6k range mean sub-1800 prop rpm, which begs an even
    larger diameter prop.<br>
    <br>
    Any chance he&#39;ll offer the more conventional 2.85? (Something close=
r
    to 2.5 would be even nicer, to get prop rpm closer to the design
    point for most homebuilt airframe/engine combos.)<br>
    <br>
    Charlie<br>
  </div>

</blockquote></div><br><br clear=3D"all"><div><br></div>-- <br><div class=
=3D"gmail_signature" data-smartmail=3D"gmail_signature">Kelly Troyer<br>Dyk=
e Delta_&quot;Eventually&quot;<br>13B_RD1C_EC2_EM2</div>
</div>

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