From: "William Jepson wrjjrs@gmail.com" <flyrotary@lancaironline.net>
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Date: Tue, 23 Jan 2018 11:13:56 -0800
Message-ID: <CAN=mtaf31+1b_ffq1Qe1pxZKAo_9GxLJStbuHZ4xHCvjMnSoig@mail.gmail.com>
Subject: Re: [FlyRotary] Re: Simple bullet proof Ignition systems?
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Guys, I don't know if he is still offering it but SDSEFI (Simple Digital
Systems, www.SDSEFI.com) has both an ignition only system and a full engine
management system that will work for a 13B. His system doesn't have split
firing, but most people running a high performance rotary do both plugs at
once anyway. He has a newer dual in one box system, FOR AIRCRAFT that could
be run simultaneously to do a split fire and be fully redundant.
Bill Jepson


On Tue, Jan 23, 2018 at 6:08 AM, Finn Lassen finn.lassen@verizon.net <
flyrotary@lancaironline.net> wrote:

> Maybe someone out there has a RWS original ignition controller they want
> to let go of. No programming required, uses 13-B standard pickup and
> ignition coils. Of course you'll have to use carburetor(s).
>
> I have one, but really don't want to let go if it. Its simplicity is nice
> if just want to get 13-B running. (All you have to do is set timing and
> tune carburetors.)
>
> Finn
>
> On 1/22/2018 11:31 PM, william Aldridge willja67@hotmail.com wrote:
>
>  I'm building a one off experimental, therefore, i need a simple bullet
> proof Ignition system and am wondering what is currently available?  I have
> the 2007 version of Tracy's conversion manual in which he gives the option
> of either using the stock distributor etc, or use a computerized ignition
> system with stock or Chevy ls coils.
>
> To reiterate, since the airframe is unproven i only want to be worried
> about flying the plane not the engine. It's a small plane the size that
> would normally have 100hp installed (1200 lbs gross) so if I only have 150
> hp I'll still be doing good. In other words I'm willing to sacrifice a
> little power for a lot of reliability and simplicity.
>
> I don't like the idea of the stock distributor, since there isn't much
> room in the cowl and there's no redundancy. I also don't like the idea of
> electronic ignition. I've read enough stories of lengthy battles to get the
> computers to play nice with the engine and don't want to go that route.
> Again simplicity and reliability at the expense of power and fuel
> efficiency is what I'm after. Also planning on using a carb for the same
> reason. I can always upgrade the engine later if i want.
>
> I figure there has to have been some other options come up in the last 10
> years. I used to subscribe to the other guys list, but don't know if any of
> the ideas he put forth have merit.
>
> Thanks,
> Will Aldridge
>
> Ps my build thread on hba here: http://www.homebuiltairplanes.com/forums/
> showthread.php?t=16831
>
>
>
> Sent from my Verizon, Samsung Galaxy smartphone
>
>
>

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<div dir=3D"ltr">Guys, I don&#39;t know if he is still offering it but SDSE=
FI (Simple Digital Systems, <a href=3D"http://www.SDSEFI.com">www.SDSEFI.co=
m</a>) has both an ignition only system and a full engine management system=
 that will work for a 13B. His system doesn&#39;t have split firing, but mo=
st people running a high performance rotary do both plugs at once anyway. H=
e has a newer dual in one box system, FOR AIRCRAFT that could be run simult=
aneously to do a split fire and be fully redundant.<div>Bill Jepson=C2=A0<d=
iv>=C2=A0</div></div></div><div class=3D"gmail_extra"><br><div class=3D"gma=
il_quote">On Tue, Jan 23, 2018 at 6:08 AM, Finn Lassen <a href=3D"mailto:fi=
nn.lassen@verizon.net">finn.lassen@verizon.net</a> <span dir=3D"ltr">&lt;<a=
 href=3D"mailto:flyrotary@lancaironline.net" target=3D"_blank">flyrotary@la=
ncaironline.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 text=3D"#000000" bgcolor=3D"#FFFFFF">
    <div class=3D"m_-1830940549932076147moz-cite-prefix">Maybe someone out =
there has a RWS
      original ignition controller they want to let go of. No
      programming required, uses 13-B standard pickup and ignition
      coils. Of course you&#39;ll have to use carburetor(s).<br>
      <br>
      I have one, but really don&#39;t want to let go if it. Its simplicity
      is nice if just want to get 13-B running. (All you have to do is
      set timing and tune carburetors.)<br>
      <br>
      Finn<br>
      <br>
      On 1/22/2018 11:31 PM, william Aldridge <a class=3D"m_-18309405499320=
76147moz-txt-link-abbreviated" href=3D"mailto:willja67@hotmail.com" target=
=3D"_blank">willja67@hotmail.com</a>
      wrote:<br>
    </div>
    <blockquote type=3D"cite">
     =20
      <div>=C2=A0I&#39;m building a one off experimental, therefore, i need=
 a
        simple bullet proof Ignition system and am wondering what is
        currently available?=C2=A0 I have the 2007 version of Tracy&#39;s
        conversion manual in which he gives the option of either using
        the stock distributor etc, or use a computerized ignition system
        with stock or Chevy ls coils.=C2=A0</div>
      <div><br>
      </div>
      <div>To reiterate, since the airframe is unproven i only want to
        be worried about flying the plane not the engine. It&#39;s a small
        plane the size that would normally have 100hp installed (1200
        lbs gross) so if I only have 150 hp I&#39;ll still be doing good. I=
n
        other words I&#39;m willing to sacrifice a little power for a lot o=
f
        reliability and simplicity.=C2=A0</div>
      <div><br>
      </div>
      <div>I don&#39;t like the idea of the stock distributor, since there
        isn&#39;t much room in the cowl and there&#39;s no redundancy. I al=
so
        don&#39;t like the idea of electronic ignition. I&#39;ve read enoug=
h
        stories of lengthy battles to get the computers to play nice
        with the engine and don&#39;t want to go that route. Again
        simplicity and reliability at the expense of power and fuel
        efficiency is what I&#39;m after. Also planning on using a carb for
        the same reason. I can always upgrade the engine later if i
        want.=C2=A0</div>
      <div><br>
      </div>
      <div>I figure there has to have been some other options come up in
        the last 10 years. I used to subscribe to the other guys list,
        but don&#39;t know if any of the ideas he put forth have merit.=C2=
=A0</div>
      <div><br>
      </div>
      <div>Thanks,=C2=A0</div>
      <div>Will Aldridge=C2=A0</div>
      <div><br>
      </div>
      <div>Ps my build thread on hba
        here:=C2=A0<a class=3D"m_-1830940549932076147moz-txt-link-freetext"=
 href=3D"http://www.homebuiltairplanes.com/forums/showthread.php?t=3D16831"=
 target=3D"_blank">http://www.<wbr>homebuiltairplanes.com/forums/<wbr>showt=
hread.php?t=3D16831</a></div>
      <div><br>
      </div>
      <div><br>
      </div>
      <div><br>
      </div>
      <div id=3D"m_-1830940549932076147composer_signature">
        <div style=3D"font-size:85%;color:#575757" dir=3D"auto">Sent from m=
y
          Verizon, Samsung Galaxy smartphone</div>
      </div>
    </blockquote>
    <p><br>
    </p>
  </div>

</blockquote></div><br></div>

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