X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 10 [X] Return-Path: Received: from bay0-omc3-s39.bay0.hotmail.com ([65.54.246.239] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 2020112 for flyrotary@lancaironline.net; Tue, 01 May 2007 17:00:43 -0400 Received-SPF: pass receiver=logan.com; client-ip=65.54.246.239; envelope-from=lors01@msn.com Received: from hotmail.com ([65.54.250.78]) by bay0-omc3-s39.bay0.hotmail.com with Microsoft SMTPSVC(6.0.3790.2668); Tue, 1 May 2007 13:59:46 -0700 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Tue, 1 May 2007 13:59:46 -0700 Message-ID: Received: from 4.171.150.86 by BAY115-DAV6.phx.gbl with DAV; Tue, 01 May 2007 20:59:45 +0000 X-Originating-IP: [4.171.150.86] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Throttle body size/ other "Paul" issues Date: Tue, 1 May 2007 16:59:41 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0064_01C78C12.1C09E920" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.50.0034.2000 Seal-Send-Time: Tue, 1 May 2007 16:59:41 -0400 X-OriginalArrivalTime: 01 May 2007 20:59:46.0711 (UTC) FILETIME=[A672CA70:01C78C33] Return-Path: lors01@msn.com This is a multi-part message in MIME format. ------=_NextPart_000_0064_01C78C12.1C09E920 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Opps, on further thought, guess it would have to be a triple pole three = position, center on toggle switch. Do they make such a thing?=20 Tracy ----- Original Message -----=20 From: Tracy Crook=20 To: Rotary motors in aircraft=20 Sent: Tuesday, May 01, 2007 3:58 PM Subject: [FlyRotary] Re: Throttle body size/ other "Paul" issues Thanks Bob, I didn't get that part. (or it was a different message?) = The part I got was asking for a diode fix to prevent the problem = (message didn't specify what that was). Paul then suggested a diode in = series with the driver which would in-fact prevent the injector current = from powering the EC2 but it also prevented the injector from firing as = well. A triple pole double throw, center off switch might accomplish the = single switch goal if wired correctly. I have no problem with that but = don't see how it is related to the 'diode fix'. Tracy ----- Original Message -----=20 From: Bob White=20 To: Rotary motors in aircraft=20 Sent: Tuesday, May 01, 2007 3:08 PM Subject: [FlyRotary] Re: Throttle body size/ other "Paul" issues To put the quote in context, here is the rest of it. "... His recommended solution is to put on-off switches for both the = primary and secondary injector pairs. His logic is this allows one to = disable an injector pair if it is misbehaving, and at the same time prevent = the backward EC-2 power phenomenon mentioned above. I am not a fan of = this solution - I wired my system with a single switch primary-both-secondary. I figure if I have injector problems, I = don't want to be flipping a pair of switches trying to find the right setting. There is comfort in knowing I need only flip a single = switch either up or down to disable which ever pair is not working. ... Mark" So it's really just an issue of his preference for having one switch instead of two. Apparently he doesn't have a master switch for the = bus either or didn't turn it off. Otherwise, the only time the back = power causes a problem is one of the reset modes for the EC2. Bob W. ------=_NextPart_000_0064_01C78C12.1C09E920 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Opps, on further thought, guess it would have to be a triple pole = three=20 position, center on toggle switch.  Do they make such a = thing? 
 
Tracy
----- Original Message -----
To: Rotary motors in = aircraft
Sent: Tuesday, May 01, 2007 = 3:58 PM
Subject: [FlyRotary] Re: = Throttle body=20 size/ other "Paul" issues

Thanks Bob, I didn't get that part.  (or it was a different=20 message?)  The part I got was asking for a diode fix to prevent = the=20 problem (message didn't specify what that was).  Paul then = suggested a=20 diode in series with the driver which would in-fact prevent the = injector=20 current from powering the EC2 but it also prevented the injector from = firing=20 as well.
 
A triple pole double throw, center off switch = might accomplish=20 the single switch goal if wired correctly.  I have no problem = with that=20 but don't see how it is related to the 'diode fix'.
 
Tracy
----- Original Message -----
From: Bob=20 White
To: Rotary motors in = aircraft=20
Sent: Tuesday, May 01, 2007 = 3:08=20 PM
Subject: [FlyRotary] Re: = Throttle body=20 size/ other "Paul" issues

To put the quote in context, here is the rest of=20 it.

"...
His recommended solution is to put on-off = switches for=20 both the primary
and secondary injector pairs.  His logic is = this=20 allows one to disable
an injector pair if it is misbehaving, and = at the=20 same time prevent the
backward EC-2 power phenomenon mentioned=20 above.  I am not a fan of this
solution - I wired my system = with a=20 single switch
primary-both-secondary.  I figure if I have = injector=20 problems, I don't
want to be flipping a pair of switches trying = to find=20 the right
setting.  There is comfort in knowing I need only = flip a=20 single switch
either up or down to disable which ever pair is not = working.
...
Mark"

So it's really just an issue of his=20 preference for having one switch
instead of two.  Apparently = he=20 doesn't have a master switch for the bus
either or didn't turn it = off.  Otherwise, the only time the back power
causes a = problem is=20 one of the reset modes for the EC2.

Bob=20 W.


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