From: "Terry Adams terrywadams@sbcglobal.net" <flyrotary@lancaironline.net>
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Date: Thu, 14 Oct 2021 21:18:38 -0700
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Subject: Re: [FlyRotary] Marcotte 2.4:1 vs RWS RD-1C 2.85:1
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Les,
The IVO prop may be the weak link.  Quite some time ago there was 
information posted concerning the prop blades.  I am not in a position 
to say, but you may want to do some additional research.

Terry

On 10/14/2021 6:38 PM, Les C lesphoto@hotmail.com wrote:
> I have the good fortune to have both of these redrives in my garage as 
> I have gathered parts for my BD-4 project.  I took advantage of timely 
> offers and can only use one of them.  My motor is a 20b built by Bob 
> Darrah.  I like the idea of keeping the RPM's down with the Marcotte 
> drive to 6500, but the RWS drive would allow me to develop additional 
> power at 7500.  I have an IVO prop that I will be using with inflight 
> "controllable" pitch.
>
> So I throw it out there to you.  Which PRSU do I keep?
>
> Les Criscillo
> Nurse, Pilot, Brewmaster, Maker
> https://eaabuilderslog.org/?blproject&proj=7XSZ512C2 
> <https://eaabuilderslog.org/?blproject&proj=7XSZ512C2>

-- 
Communication ink and paper free

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    <font face="Times New Roman, Times, serif">Les,<br>
      The IVO prop may be the weak link.  Quite some time ago there was
      information posted concerning the prop blades.  I am not in a
      position to say, but you may want to do some additional research.<br>
      <br>
      Terry<br>
    </font><br>
    <div class="moz-cite-prefix">On 10/14/2021 6:38 PM, Les C
      <a class="moz-txt-link-abbreviated" href="mailto:lesphoto@hotmail.com">lesphoto@hotmail.com</a> wrote:<br>
    </div>
    <blockquote type="cite" cite="mid:list-362949@logan.com">
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
      <style type="text/css" style="display:none;">P {margin-top:0;margin-bottom:0;}</style>
      <div style="font-family: Calibri, Helvetica, sans-serif;
        font-size: 12pt; color: rgb(0, 0, 0);">
        I have the good fortune to have both of these redrives in my
        garage as I have gathered parts for my BD-4 project.  I took
        advantage of timely offers and can only use one of them.  My
        motor is a 20b built by Bob Darrah.  I like the idea of keeping
        the RPM's down with the Marcotte drive to 6500, but the RWS
        drive would allow me to develop additional power at 7500.  I
        have an IVO prop that I will be using with inflight
        "controllable" pitch. </div>
      <div style="font-family: Calibri, Helvetica, sans-serif;
        font-size: 12pt; color: rgb(0, 0, 0);">
        <br>
      </div>
      <div style="font-family: Calibri, Helvetica, sans-serif;
        font-size: 12pt; color: rgb(0, 0, 0);">
        So I throw it out there to you.  Which PRSU do I keep?</div>
      <div style="font-family: Calibri, Helvetica, sans-serif;
        font-size: 12pt; color: rgb(0, 0, 0);">
        <br>
      </div>
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        <div id="Signature">
          <div>
            <div style="font-family:Calibri,Helvetica,sans-serif;
              font-size:12pt; color:rgb(0,0,0)">
              Les Criscillo</div>
            <div style="font-family:Calibri,Helvetica,sans-serif;
              font-size:12pt; color:rgb(0,0,0)">
              Nurse, Pilot, Brewmaster, Maker</div>
            <div id="geom_inter_1591045063972_36_3"
              style="font-family:Calibri,Helvetica,sans-serif;
              font-size:12pt; color:rgb(0,0,0)">
              <a
                href="https://eaabuilderslog.org/?blproject&amp;proj=7XSZ512C2"
                moz-do-not-send="true">https://eaabuilderslog.org/?blproject&amp;proj=7XSZ512C2</a><br>
            </div>
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    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 
Communication ink and paper free</pre>
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