From: "William Jepson" <flyrotary@lancaironline.net>
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Date: Mon, 17 Apr 2017 23:20:25 -0700
Message-ID: <CAN=mtacPVQmdsrcKFGRv8Yu31SBWZR42pX_3QEjCzbakN2j9UQ@mail.gmail.com>
Subject: Re: [FlyRotary] Permanent Magnet Backup Generator
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Todd, nice work on your adaptation. Car endurance racers are using a
crankshaft driven (normal front end in the car) unit that replaces the
harmonic dampener. It is made by Race-Mate. I don't know if they were
really successful, but I was negotiating a unit for rotary engines that
would bolt on. I was forced to change jobs and couldn't afford to follow up
with it. If they are still around the machining challenged could give them
a call. You did very nice work though.
Bill Jepson

On Mon, Apr 17, 2017 at 2:31 AM, Todd Bartrim <flyrotary@lancaironline.net>
wrote:

> Many years ago we discussed on the list various ways to implement backup
> electrical sources for our electrically dependent engines. A great amount
> of discussion was around permanent magnet type of generators.
>    An idea was hatched and discussed, then forgotten. Except I didn't.
> Some years and a few sleepless nights later I set upon achieving this. Most
> of the work was done and reported to the list quite a few years back, but
> at that time I knew I had to set it aside for some time as I had other
> commitments.
>   At last report I had finalized the mechanical aspect but had made no
> attempt to integrate it into the electrical system. I've now finalized this
> and yesterday ran the engine for the first time. Everything worked
> excellent! So far it seems to have been a tremendous success.
>   So I have updated my word document of the procedures for this
> modification. Including a wiring diagram.
> For your entertainment I've put it on Google Drive in Word format where it
> can be accessed at the following link
> https://drive.google.com/file/d/0B9-1Iqfk8J8nRmUwWGpLWnRvaWc
> /view?usp=sharing
>
> or for us Linux types in .odt
> https://drive.google.com/file/d/0B9-1Iqfk8J8ncVBEbVFWQjR3OFE/view?
> usp=sharing
>
> Comments, criticisms welcome
>
> Todd Bartrim
>  RV9a 13BTurbo
>

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<div dir=3D"ltr">Todd, nice work on your adaptation. Car endurance racers a=
re using a crankshaft driven (normal front end in the car) unit that replac=
es the harmonic dampener. It is made by Race-Mate. I don&#39;t know if they=
 were really successful, but I was negotiating a unit for rotary engines th=
at would bolt on. I was forced to change jobs and couldn&#39;t afford to fo=
llow up with it. If they are still around the machining challenged could gi=
ve them a call. You did very nice work though.<div>Bill Jepson=C2=A0</div><=
/div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Mon, Apr =
17, 2017 at 2:31 AM, Todd Bartrim <span dir=3D"ltr">&lt;<a href=3D"mailto:f=
lyrotary@lancaironline.net" target=3D"_blank">flyrotary@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"><div dir=3D"ltr">Man=
y years ago we discussed on the list various ways to implement backup elect=
rical sources for our electrically dependent engines. A great amount of dis=
cussion was around permanent magnet type of generators.=C2=A0<div>=C2=A0 =
=C2=A0An idea was hatched and discussed, then forgotten. Except I didn&#39;=
t. Some years and a few sleepless nights later I set upon achieving this. M=
ost of the work was done and reported to the list quite a few years back, b=
ut at that time I knew I had to set it aside for some time as I had other c=
ommitments.=C2=A0</div><div>=C2=A0 At last report I had finalized the mecha=
nical aspect but had made no attempt to integrate it into the electrical sy=
stem. I&#39;ve now finalized this and yesterday ran the engine for the firs=
t time. Everything worked excellent! So far it seems to have been a tremend=
ous success.</div><div>=C2=A0 So I have updated my word document of the pro=
cedures for this modification. Including a wiring diagram.=C2=A0</div><div>=
For your entertainment I&#39;ve put it on Google Drive in Word format where=
 it can be accessed at the following link</div><div><div><a href=3D"https:/=
/drive.google.com/file/d/0B9-1Iqfk8J8nRmUwWGpLWnRvaWc/view?usp=3Dsharing" t=
arget=3D"_blank">https://drive.google.com/file/<wbr>d/0B9-1Iqfk8J8nRmUwWGpL=
WnRvaWc<wbr>/view?usp=3Dsharing</a><br></div><div><br></div><div>or for us =
Linux types in .odt</div><div><a href=3D"https://drive.google.com/file/d/0B=
9-1Iqfk8J8ncVBEbVFWQjR3OFE/view?usp=3Dsharing" target=3D"_blank">https://dr=
ive.google.com/file/<wbr>d/0B9-<wbr>1Iqfk8J8ncVBEbVFWQjR3OFE/view?<wbr>usp=
=3Dsharing</a><br></div><div><br clear=3D"all"><div><div class=3D"m_8015306=
518950564775gmail-m_-3382389146696261499gmail_signature"><div>Comments, cri=
ticisms welcome</div><span class=3D"HOEnZb"><font color=3D"#888888"><div><b=
r></div><div dir=3D"ltr">Todd Bartrim</div><div>=C2=A0RV9a 13BTurbo</div></=
font></span></div></div>
</div></div></div>
</blockquote></div><br></div>

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