X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from ms-smtp-01.southeast.rr.com ([24.25.9.100] verified) by logan.com (CommuniGate Pro SMTP 5.1.9) with ESMTP id 2078748 for flyrotary@lancaironline.net; Fri, 01 Jun 2007 12:11:10 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.100; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-103-061.carolina.res.rr.com [24.74.103.61]) by ms-smtp-01.southeast.rr.com (8.13.6/8.13.6) with SMTP id l51GAFba012455 for ; Fri, 1 Jun 2007 12:10:16 -0400 (EDT) Message-ID: <000801c7a467$5fee7bc0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Injector disable swtich orientation was [FlyRotary] Re: It is ALIVE!!! First Start in Houston Date: Fri, 1 Jun 2007 12:10:29 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0005_01C7A445.D8909080" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3028 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0005_01C7A445.D8909080 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I see you point, Marv Typically, I revered to what little I know and was taught in the = Military - UP is ON and DOWN is OFF. I remember when I flew B-52's as = the Electronic Warfare Office, I had more switches than anyone else - = dozens - and ALL with all but one switch "UP" was ON. However, the = chaff dispensing hopper was just the opposite. Our Bomb Wing once got = an Unsatisfactory grade on the Electronic Warfare portion of an ORI = (Operational Readiness inspection) - because a brand new guy failed to = dispense the required amount of chaff - in fact, he dispensed none, = because - you got it! - He placed the chaff dispensing switch to UP. So despite the nomenclature given as "Injector Disable" switches -- In = my mind they become "Injector Enable" Switches so that "Enable" is "UP" = is "ON" and my mind is happy. But, I do see you point. Ed=20 ----- Original Message -----=20 From: marv@lancair.net=20 To: Rotary motors in aircraft=20 Sent: Friday, June 01, 2007 9:50 AM Subject: [FlyRotary] Re: Injector disable swtich orientation was = [FlyRotary] Re: It is ALIVE!!! First Start in Houston I dunno, Ed.. I think the real issue is one of nomenclature. The = property we typically try to control with a switch is the provision of = power to a specific device. In this instance, however, the effect that = has been named (ie, to disable the injectors) requires an inverted = result from a power perspective to achieve the named function. It is no = wonder that one would assume that you need to throw the switch upward to = "turn on" the disable function. If you look at it a different way, if = the name of the function doubled as the "on" indicator, then placing the = names above the switches would serve both pruposes... in the case of = disabling the injectors, flipping the switch upward would, in fact, = disable them. However, in the wiring behind the panel that switch would = have to be wired to only allow power through itself when in the down, = ie, the "not disabled", position. Seems t """ -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html ------=_NextPart_000_0005_01C7A445.D8909080 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

I see you point, Marv

Typically, I revered to what little I know and=20 was taught in the Military - UP is ON and DOWN is = OFF. I=20 remember when I flew B-52's as the Electronic Warfare Office, I had more = switches than anyone else - dozens - and ALL with all but one = switch "UP"=20 was ON. However, the chaff dispensing hopper was just the = opposite. =20 Our Bomb Wing once got an Unsatisfactory grade on the Electronic = Warfare=20 portion of an ORI (Operational Readiness inspection) - = because a=20 brand new guy failed to dispense the required amount of chaff - in fact, = he=20 dispensed none, because - you got it! - He placed the chaff = dispensing=20 switch to UP.

So despite the nomenclature given as "Injector = Disable"=20 switches -- In my mind they become "Injector Enable" Switches so = that=20 "Enable" is "UP" is "ON" and my mind is happy.

But, I do see you point.

----- Original Message -----
From:=20 marv@lancair.net=20
To: Rotary motors in = aircraft

Sent: Friday, June 01, 2007 = 9:50 AM

Subject: [FlyRotary] Re: = Injector disable=20 swtich orientation was [FlyRotary] Re: It is ALIVE!!! First Start in=20 Houston

I dunno, Ed.. I think = the real=20 issue is one of nomenclature. The property we typically try to = control=20 with a switch is the provision of power to a specific device. In = this=20 instance, however, the effect that has been named (ie, to disable the=20 injectors) requires an inverted result from a power perspective to = achieve the=20 named function. It is no wonder that one would assume that you = need to=20 throw the switch upward to "turn on" the disable function. If = you look=20 at it a different way, if the name of the function doubled as the "on" = indicator, then placing the names above the switches would serve both=20 pruposes... in the case of disabling the injectors, flipping the = switch upward=20 would, in fact, disable them. However, in the wiring behind the = panel=20 that switch would have to be wired to only allow power through itself = when in=20 the down, ie, the "not disabled", position. Seems t """

-- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html
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