X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [24.25.9.103] (HELO ms-smtp-04-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 931538 for flyrotary@lancaironline.net; Tue, 03 May 2005 16:56:59 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.103; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-189-178.carolina.res.rr.com [24.74.189.178]) by ms-smtp-04-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id j43KuAL5011224 for ; Tue, 3 May 2005 16:56:11 -0400 (EDT) Message-ID: <002801c55022$8bf31140$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: ECU power - was fuses vs breakers Date: Tue, 3 May 2005 16:56:15 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0025_01C55001.048DFA10" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0025_01C55001.048DFA10 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable ----- Original Message -----=20 From: WALTER B KERR=20 To: Rotary motors in aircraft=20 Sent: Tuesday, May 03, 2005 1:49 PM Subject: [FlyRotary] Re: ECU power - was fuses vs breakers Ed A wrote: The answer is yes, the engine will continue to run. In fact, talking = with Tracy he assumed that most folks would kill the engine by turning = off the master switch - which would indeed remove power from the EC2. = If I had not installed injector switches, I would indeed have to kill = the master switch to stop the engine. So I can verify it will run with = the power switch to the EC2 OFF provided power to the injectors are on. = However, since I don't know what components the sneak circuit involves = or how much load they may be capable of, to be on the safe side, I = normally do not run it with just the injector power. ---------------------------------------------------------------- Along these lines, how is the best way to turn the engine off with = Tracy's EC2 and do some glide test to determine the engine out glide = characteristics so that I can fiqure out what power and flap will get me = similar glide to practice engine out landings with the engine running? = Of course I wish the engine to restart after the glide test:>) Bernie, getting LT2 probe connected properly to read cool side of = radiator, called Tracy 3 times this am! Bernie, I don't turn off the EC2 when I "practice" gliding. I turn = off the injectors - that way the fuel line stays pressurized, the EC2 is = hot and ready to go and is still computing away with the injector pulse = widths - its just the injectors have no power to open. The engine = catches immediately upon turning the injectors back on. That's the way I do it. Ed A ------=_NextPart_000_0025_01C55001.048DFA10 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
----- Original Message -----
From:=20 WALTER B = KERR
Sent: Tuesday, May 03, 2005 = 1:49 PM
Subject: [FlyRotary] Re: ECU = power - was=20 fuses vs breakers

Ed A wrote:
 
The answer is yes, the engine will = continue to=20 run.  In fact, talking with Tracy he assumed that most folks = would kill=20 the engine by turning off the master switch - which would indeed = remove power=20 from the EC2.  If I had not installed injector switches, I would = indeed=20 have to kill the master switch to stop the engine.  So I can = verify it=20 will run with the power switch to the EC2 OFF provided power to the = injectors=20 are on.  However, since I don't know what components the sneak = circuit=20 involves or how much load they may be capable of, to be on the safe = side,=20  I normally do not run it with just the injector = power.
 
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Along these lines, how is the best = way to turn=20 the engine off with Tracy's EC2 and do some glide test to determine = the engine=20 out glide characteristics so that I can fiqure out what power and flap = will=20 get me similar glide to practice engine out landings with  the = engine=20 running? Of course I wish the engine to restart after the glide=20 test:>)
 
Bernie, getting LT2 probe connected = properly to=20 read cool side of radiator, called Tracy 3 times this am!
 
Bernie, I don't turn off the EC2 when = I=20 "practice" gliding.  I turn off the injectors - that way the fuel = line=20 stays pressurized, the EC2 is hot and ready to go and is still = computing away=20 with the injector pulse widths - its just the injectors have no power = to=20 open.  The engine catches immediately upon turning the injectors = back=20 on.
 
That's the way I do it.
 
Ed A
 
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