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Date: Thu, 14 Jun 2012 10:58:06 -0700
Message-ID: <CAPZjv+iizsHsMmV7RyVb5vVOtS2fbc+r5Q+4auRMK9t4oFkR9Q@mail.gmail.com>
Subject: Re: [FlyRotary] IVO Prop controls
From: Patrick Panzera <editor@contactmagazine.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Content-Type: multipart/alternative; boundary=20cf303b40a71c6a4a04c27271cd
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Content-Type: text/plain; charset=ISO-8859-1

About 9.5 years ago, we published an article in CONTACT! Magazine about an
RV with a Ford V6 in it, and it had an Ivo prop installed.
http://issuu.com/panzera/docs/issue_72

The builder did some innovative things and explains the use of the ammeter.

If memory serves, he also used a solenoid to engage (and disengage) the
brushes so that the brushes only received wear when the pitch change was
called for... but that may have been in another article.

...and for the rotary purest, there is a nice article on the Renisis engine
in this same issue.

-- 
Thanks!

Patrick Panzera
Editor@ContactMagazine.com
www.ContactMagazine.com <http://www.contactmagazine.com/>



On Wed, Jun 13, 2012 at 2:15 PM, <Lehanover@aol.com> wrote:

> **
> Why in the world would IVO use a device that is designed to fail critical
> flight gear in the case of improper control
> manipulation when they don't have to? Isn't this the classical and proper
> application for a polyfuse? Polyfuses are
> used in power windows for this exact reason. You're kids can pull on that
> switch all day without damaging the window
> motor. I'm thinking of the case where a switch gets shorted (like my belt
> sander's switch is right now...the power cord
> is serving as a temp fix until I get time), or someone accidentally leans
> something against the switch.
> Why does the motor draw current after the pitch has been changed?
>
> Lynn E. Hanover
>

--20cf303b40a71c6a4a04c27271cd
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

About 9.5 years ago, we published an article in CONTACT! Magazine about an =
RV with a Ford V6 in it, and it had an Ivo prop installed.<div><a href=3D"h=
ttp://issuu.com/panzera/docs/issue_72">http://issuu.com/panzera/docs/issue_=
72</a>=A0<br>
<div><br></div><div>The builder did some innovative things and=A0explains=
=A0the use of the ammeter.=A0</div><div><br></div><div>If memory serves, he=
 also used a solenoid to=A0engage=A0(and disengage) the brushes so that the=
 brushes only=A0received=A0wear when the pitch change was called for... but=
 that may have been in another article.</div>
<div><br></div><div>...and for the rotary purest, there is a nice article o=
n the Renisis engine in this same issue.=A0</div><div><br></div><div>--=A0<=
br><div>Thanks!</div><div><br></div>Patrick Panzera<div>Editor@ContactMagaz=
ine.com</div>
<div><a href=3D"http://www.contactmagazine.com/" target=3D"_blank">www.Cont=
actMagazine.com</a></div><br class=3D"Apple-interchange-newline"></div><div=
><br><br><div class=3D"gmail_quote">On Wed, Jun 13, 2012 at 2:15 PM,  <span=
 dir=3D"ltr">&lt;<a href=3D"mailto:Lehanover@aol.com" target=3D"_blank">Leh=
anover@aol.com</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><u></u>



<div style=3D"font-size:12pt;font-family:Arial"><font color=3D"#000000" siz=
e=3D"3" face=3D"Arial">
<div><font>Why in the world would IVO use a device that is designed to=20
fail critical flight gear in the case of improper control<br>manipulation w=
hen=20
they don&#39;t have to? Isn&#39;t this the classical and proper application=
 for a=20
polyfuse? Polyfuses are<br>used in power windows for this exact reason. You=
&#39;re=20
kids can pull on that switch all day without damaging the window<br>motor. =
I&#39;m=20
thinking of the case where a switch gets shorted (like my belt sander&#39;s=
 switch=20
is right now...the power cord<br>is serving as a temp fix until I get time)=
, or=20
someone accidentally leans something against the switch.</font><br></div>
<div>Why does the motor draw current after the pitch has been changed?</div=
>
<div>=A0</div>
<div>Lynn E. Hanover=A0</div></font></div></blockquote></div><br><br clear=
=3D"all"><div><br></div><div><br></div><br>
</div></div>

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