X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [24.25.9.100] (HELO ms-smtp-01-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 935191 for flyrotary@lancaironline.net; Fri, 06 May 2005 16:15:11 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.100; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-189-178.carolina.res.rr.com [24.74.189.178]) by ms-smtp-01-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id j46KEOLw018439 for ; Fri, 6 May 2005 16:14:24 -0400 (EDT) Message-ID: <007301c55278$37d5f890$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Emailing: Possies & CAS 007, Possies & CAS 008, Possies & CAS 009 Date: Fri, 6 May 2005 16:14:33 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0070_01C55256.B0922500" 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_0070_01C55256.B0922500 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Yes, it has Ian. But, I don't recall anyone pursuing it . Not = certain, but no reason why Tracy wouldn't use the "lost spark" method = since it simplifies things. And since he has the leading and trailing = plugs firing at nearly the same instant - should work on both ignition = systems. Not certain what algorithm Tracy uses - he may also use the 15 deg = spacing "tooth" marks as well. Ed ----- Original Message -----=20 From: Ian Dewhirst=20 To: Rotary motors in aircraft=20 Sent: Friday, May 06, 2005 1:43 PM Subject: [FlyRotary] Re: Emailing: Possies & CAS 007, Possies & CAS = 008, Possies & CAS 009 Hi Ed, has a crank trigger been discussed in the past? If so is = anyone pursuing it? Do you know what the EC-2 needs to see, I assume = that the EC-2 needs to see 3 pulses spaced 120 degrees apart on the = crank, I am guessing that Tracy fires both rotors at the same time for = simplicity as one would be starting the power cycle while the other was = ending the exhaust cycle. I agree that the electronic components in the crank angle sensor are = unlikely to fail, in my experience the problem is usually a failed = connector or bad harness usually resulting from poor routing, past = repairs in the vicinity, or old age causing the connectors to become = brittle. -- Ian -----Original Message----- From: Rotary motors in aircraft = [mailto:flyrotary@lancaironline.net]On Behalf Of Ed Anderson Sent: Friday, May 06, 2005 1:09 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Emailing: Possies & CAS 007, Possies & CAS = 008, Possies & CAS 009 Very Interesting approach, Georges. Simpler than trying to adapt the twin distributor 12A front mount. = However, with both on the same shaft not certain you have true = redundancy - in my opinion the shaft is more likely to fail than the = simply electrical circuit used to sense the rotation. For true = redundancy, I would think you would want to put a flywheel/pulley angle = sensor - probably flywheel end where a flopping belt wouldn't tear it = out. Ed ----- Original Message -----=20 From: Echo Lake Fishing Resort (Georges Boucher)=20 To: Rotary motors in aircraft=20 Sent: Friday, May 06, 2005 12:23 PM Subject: [FlyRotary] Emailing: Possies & CAS 007, Possies & CAS = 008, Possies & CAS 009 Group I gave up on the 12a front cover to have igniter = redundancy.The first photo is the semi completed unit (need to install = upper shaft). Second is the adaptor & 3rd (out of focus)is the upper = shaft with the center drilled out for the mounting bolt. The shaft has a = ball bearing for support at the top (great support) the bearing retainer = is left out as the upper shaft locates the bearing . A star washer = between the two shaft will lock the two together.(note: machining = accuracy is very important) The amount of space required shouldn't be a problem on any = installation Georges B. Note: To protect against computer viruses, e-mail programs = may prevent sending or receiving certain types of file attachments. = Check your e-mail security settings to determine how attachments are = handled.=20 =20 =20 -------------------------------------------------------------------------= - No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.11.5 - Release Date: = 5/4/2005 -------------------------------------------------------------------------= - >> Homepage: http://www.flyrotary.com/ >> Archive: http://lancaironline.net/lists/flyrotary/List.html ------=_NextPart_000_0070_01C55256.B0922500 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Yes, it has Ian.  But,  I don't recall = anyone=20 pursuing it .  Not certain, but no reason why Tracy wouldn't use = the "lost=20 spark" method since it simplifies things.  And since he has the = leading and=20 trailing plugs firing at nearly the same instant - should work on both = ignition=20 systems.
Not certain what algorithm Tracy uses - he may also = use the 15=20 deg spacing "tooth" marks as well.
 
Ed
----- Original Message -----
From:=20 Ian = Dewhirst=20
Sent: Friday, May 06, 2005 1:43 = PM
Subject: [FlyRotary] Re: = Emailing:=20 Possies & CAS 007, Possies & CAS 008, Possies & CAS = 009

Hi Ed, has a crank trigger been = discussed=20 in the past?  If so is anyone pursuing it?  Do you know what = the=20 EC-2 needs to see, I assume that the EC-2 needs to see 3 pulses=20 spaced 120 degrees apart on the crank, I am guessing that Tracy = fires=20 both rotors at the same time for simplicity as one would be starting = the=20 power cycle while the other was ending the exhaust = cycle.
 
I agree that the electronic = components in=20 the crank angle sensor are unlikely to fail, in my experience the = problem is=20 usually a failed connector or bad harness usually resulting from poor = routing,=20 past repairs in the vicinity, or old age causing the connectors = to become=20 brittle.  -- Ian
-----Original Message-----
From: Rotary motors in = aircraft=20 [mailto:flyrotary@lancaironline.net]On Behalf Of Ed=20 Anderson
Sent: Friday, May 06, 2005 1:09 PM
To: = Rotary=20 motors in aircraft
Subject: [FlyRotary] Re: Emailing: = Possies=20 & CAS 007, Possies & CAS 008, Possies & CAS=20 009

Very Interesting approach, Georges.
 
Simpler than trying to adapt the twin = distributor 12A=20 front mount.  However, with both on the same shaft not certain = you have=20 true redundancy - in my opinion the shaft is more likely to fail = than the=20 simply electrical circuit used to sense the rotation.  For true = redundancy, I would think you would want to put a flywheel/pulley = angle=20 sensor - probably flywheel end where a flopping belt wouldn't tear = it=20 out.
 
Ed
 
----- Original Message -----
From:=20 Echo Lake Fishing Resort = (Georges=20 Boucher)
To: Rotary motors in = aircraft=20
Sent: Friday, May 06, 2005 = 12:23=20 PM
Subject: [FlyRotary] = Emailing:=20 Possies & CAS 007, Possies & CAS 008, Possies & CAS = 009

Group
I gave up on the 12a front cover to have igniter = redundancy.The=20 first photo is the semi completed unit (need to install = upper=20 shaft). Second is the adaptor & 3rd (out of focus)is the = upper=20 shaft with the center drilled out for the mounting bolt. The = shaft=20 has a ball bearing for support at the top (great support) = the=20 bearing retainer is left out as the upper shaft locates the = bearing=20 . A star washer between the two shaft will lock the two=20 together.(note: machining accuracy is very important)
The amount of space required shouldn't be a problem on = any=20 installation
Georges B.
 
Note: To protect against computer viruses, e-mail = programs may=20 prevent sending or receiving certain types of file = attachments.=20 Check your e-mail security settings to determine how = attachments are=20 handled.

No virus found in this outgoing message.
Checked by AVG=20 Anti-Virus.
Version: 7.0.308 / Virus Database: 266.11.5 - = Release Date:=20 5/4/2005

>>  Homepage: =20 http://www.flyrotary.com/
>>  Archive:  =20 = http://lancaironline.net/lists/flyrotary/List.html
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