X-Virus-Scanned: clean according to Sophos on Logan.com
Return-Path: <wdleonard@gmail.com>
Received: from zproxy.gmail.com ([64.233.162.200] verified)
  by logan.com (CommuniGate Pro SMTP 4.3.6)
  with ESMTP id 610658 for flyrotary@lancaironline.net; Thu, 21 Jul 2005 15:05:40 -0400
Received-SPF: pass
 receiver=logan.com; client-ip=64.233.162.200; envelope-from=wdleonard@gmail.com
Received: by zproxy.gmail.com with SMTP id f1so35990nzc
        for <flyrotary@lancaironline.net>; Thu, 21 Jul 2005 12:04:55 -0700 (PDT)
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
        s=beta; d=gmail.com;
        h=received:message-id:date:from:reply-to:to:subject:in-reply-to:mime-version:content-type:references;
        b=LpnAfcdR3pS9o12lZoPLYqvw6Oqhwtqxc1ksnExoudfiBw97bPOt69uh1AoBcv0j+jLY8N2pKG1fTkxK6StzCMi+naayHPaANe2j9tFpQsbiEoJpc6LE3d7fpR6DrClPDGlCNDhsF9e+Hl19YXZiYWN31YF0iH+onjMbwkgG81s=
Received: by 10.37.12.40 with SMTP id p40mr1295413nzi;
        Thu, 21 Jul 2005 12:04:55 -0700 (PDT)
Received: by 10.36.9.4 with HTTP; Thu, 21 Jul 2005 12:04:55 -0700 (PDT)
Message-ID: <1c23473f05072112044162825a@mail.gmail.com>
Date: Thu, 21 Jul 2005 12:04:55 -0700
From: David Leonard <wdleonard@gmail.com>
Reply-To: David Leonard <wdleonard@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Daves EC2 problem
In-Reply-To: <list-610319@logan.com>
Mime-Version: 1.0
Content-Type: multipart/alternative; 
	boundary="----=_Part_12455_17376364.1121972695776"
References: <list-610319@logan.com>

------=_Part_12455_17376364.1121972695776
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline

On 7/21/05, Tracy Crook <lors01@msn.com> wrote:=20
>=20
>  Forgot to comment on the EC2 problem.=20
>  Since the B problem was intermittent, there is a 99.99% probability that=
=20
> the flaw is in the relay that switches the injectors between A & B=20
> controller injector driver transistors. This is one of those cases where =
the=20
> complexity of redundancy causes rather than cures a problem. (See current=
=20
> stories about the space shuttle now on the launch pad.) This is the reaso=
n=20
> why I decided not to add the complexity of auto-switching of controllers =
in=20
> the event of a failure. I get asked about that a lot.
>    Tracy (Wondering how many times I have cited the example of shuttle=20
> launch scrubs due to faulty sensors in the backup systems)
>=20
 That is also good to know that there is a cause in mind. Thanks for all yo=
u=20
help on these issues. I am sure you must be very busy getting ready for=20
Oshkosh.
 The EC2 and input shaft are scheduled to arrive at your place Friday=20
evening. If you are able to turn them around before you leave that would be=
=20
great, but not that big of a deal. After all, I'm only paying $20/day for m=
y=20
hangar :-)

--=20
Dave Leonard
Turbo Rotary RV-6 N4VY
http://members.aol.com/_ht_a/rotaryroster/index.html
http://members.aol.com/vp4skydoc/index.html

------=_Part_12455_17376364.1121972695776
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline

<br><br>
<div><span class=3D"gmail_quote">On 7/21/05, <b class=3D"gmail_sendername">=
Tracy Crook</b> &lt;<a href=3D"mailto:lors01@msn.com">lors01@msn.com</a>&gt=
; wrote:</span>
<blockquote class=3D"gmail_quote" style=3D"PADDING-LEFT: 1ex; MARGIN: 0px 0=
px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div>
<div>Forgot to comment on the EC2 problem.&nbsp; </div>
<div>&nbsp;</div>
<div>Since the B problem was intermittent, there is a 99.99% probability th=
at the&nbsp;flaw is in the relay that switches the injectors between A &amp=
; B controller injector driver transistors.&nbsp; This is one of those case=
s&nbsp;where&nbsp;the complexity of redundancy causes rather than cures a p=
roblem.&nbsp; (See current stories about the space shuttle now on the launc=
h pad.)&nbsp; &nbsp; This is the reason why I decided not to add the comple=
xity of auto-switching of controllers in the event of a failure.&nbsp; I ge=
t asked about that a lot.
</div>
<div>&nbsp;</div>
<div>&nbsp;</div>
<div>
<div>Tracy&nbsp; (Wondering&nbsp;how&nbsp;many times&nbsp;I have cited the =
example of&nbsp; shuttle launch scrubs due to faulty sensors in the backup =
systems)</div></div></div></blockquote>
<div>&nbsp;</div>
<div>That is also good to know that there is a cause in mind.&nbsp; Thanks =
for all you help on these issues.&nbsp; I am sure you must be very busy get=
ting ready for Oshkosh.</div>
<div>&nbsp;</div>
<div>The EC2 and input shaft are scheduled to arrive at your place Friday e=
vening.&nbsp; If you are able to turn them around before you leave that wou=
ld be great, but not that big of a deal.&nbsp; After all, I'm only paying $=
20/day for my hangar&nbsp; :-)
<br><br>-- <br>Dave Leonard<br>Turbo Rotary RV-6 N4VY<br><a href=3D"http://=
members.aol.com/_ht_a/rotaryroster/index.html">http://members.aol.com/_ht_a=
/rotaryroster/index.html</a><br><a href=3D"http://members.aol.com/vp4skydoc=
/index.html">
http://members.aol.com/vp4skydoc/index.html</a> </div></div>

------=_Part_12455_17376364.1121972695776--