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X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: <13brv3@bellsouth.net> Received: from imf16aec.mail.bellsouth.net ([205.152.59.64] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 944758 for flyrotary@lancaironline.net; Sun, 15 May 2005 12:13:58 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.64; envelope-from=13brv3@bellsouth.net Received: from ibm58aec.bellsouth.net ([65.6.194.9]) by imf16aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050515161313.MIOP2562.imf16aec.mail.bellsouth.net@ibm58aec.bellsouth.net> for ; Sun, 15 May 2005 12:13:13 -0400 Received: from rd ([65.6.194.9]) by ibm58aec.bellsouth.net (InterMail vG.1.02.00.01 201-2136-104-101-20040929) with ESMTP id <20050515161312.PEHL2207.ibm58aec.bellsouth.net@rd> for ; Sun, 15 May 2005 12:13:12 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Killing engine in flight for glide test?? Date: Sun, 15 May 2005 11:13:13 -0500 Message-ID: <000001c55968$fe9bc760$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C5593F.15C5BF60" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C5593F.15C5BF60 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable This doesn't work because of some internal feed in the EC2. With the injectors on the engine will continue to fire with the EC2 off. = (Discussed by Ed and I a week or so ago, and confirmed by Tracy) =20 Al=20 =20 My engine certainly stops when I turn off the "EC-2" switch, but this = all depends on how you wired power to your system. In my system, I have = one switch that powers the EC-2, injectors, and ignition coils. Actually, = it's a double pole switch wired in parallel so I don't have to depend on any single contact of the switch. =20 =20 If you run one power feed to the EC-2, a second to the injectors, and a third to the ignition coils, then you're right, your engine won't stop = if you turn off the EC-2 power. Of course you'd also lose points for not following the schematic that Tracy includes with the EC-2, which shows = one power feed for both the injectors and EC-2 :-) =20 I still don't think it's going to hurt if the coils fire when there's no fuel to burn, so turning off just the injectors is probably fine. Of = course the safest thing to do would be to do your glide test at idle. I = personally think the results would be close enough. =20 Cheers, Rusty (off to check the oil leak once again, not that it matters, = because if it leaks, I'm going to let it keep leaking) =20 =20 =20 =20 =20 =20 ------=_NextPart_000_0001_01C5593F.15C5BF60 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

This = doesn’t work=20 because of some internal feed in the EC2. With the injectors on = the engine=20 will continue to fire with the EC2 off. (Discussed by Ed and I a = week or=20 so ago, and confirmed by Tracy)

Al

My engine=20 certainly stops when I turn off the "EC-2" switch, but this all depends = on how=20 you wired power to your system. In my system, I have = one switch=20 that powers the EC-2, injectors, and ignition coils. Actually, = it's a=20 double pole switch wired in parallel so I don't have to depend on = any=20 single contact of = the switch.

If you run one=20 power feed to the EC-2, a second to the injectors, and a third = to the=20 ignition coils, then you're right, your engine won't stop if = you turn=20 off the EC-2 power. Of course you'd also lose points for not=20 following the schematic that Tracy includes with the EC-2, = which shows one=20 power feed for both the injectors and EC-2=20 :-)

I = still don't=20 think it's going to hurt if the coils fire when there's no fuel to burn, = so=20 turning off just the injectors is probably fine. Of course the = safest=20 thing to do would be to do your glide test at idle. I = personally=20 think the results would be close enough.

Cheers,

Rusty (off to=20 check the oil leak once again, not that it matters, because if it leaks, = I'm=20 going to let it keep leaking)

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