X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-wy0-f180.google.com ([74.125.82.180] verified) by logan.com (CommuniGate Pro SMTP 5.3.10) with ESMTP id 4558176 for flyrotary@lancaironline.net; Sat, 06 Nov 2010 18:46:57 -0400 Received-SPF: pass receiver=logan.com; client-ip=74.125.82.180; envelope-from=rwstracy@gmail.com Received: by wyg36 with SMTP id 36so989918wyg.25 for ; Sat, 06 Nov 2010 15:46:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:sender:received :in-reply-to:references:date:x-google-sender-auth:message-id:subject :from:to:content-type; bh=Eh+hgYwgXgGUJJDHwjKqWpQskhv3yYXzV2YHqWFVFg8=; b=KWpiIKgoIkEYravaKhf7y+YB9qN9Kt88x5nvxHLIysvAZXpsUr7XV4qpBxBjMakoDf P2vFT0VjLG5vgaXyKNLTxDhMggK125GZRaMeapkClfC3pSKZOIg/bDu05gDOPMOQso9a f0aBgjWlEWTEbBAyhD+gOVoMDtBZqdgYMnOn0= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type; b=GZNfyCUHSxYsJezes3oCYct1mlJ2OHkQ1fcwAYEsrNEM5f23ZjPRDMMDJgSoGkogBY VnTCS5QzpZfo1QqMB2f+9p+I3fVy1JBIpCrE6UbG39YIvnopmrDMcN2yO7FESIEijOd5 XVDgwtvlAyiSqodtjtZqmCpVwL0aXLCBeRKcI= MIME-Version: 1.0 Received: by 10.216.160.17 with SMTP id t17mr3391004wek.103.1289083579934; Sat, 06 Nov 2010 15:46:19 -0700 (PDT) Sender: rwstracy@gmail.com Received: by 10.216.21.145 with HTTP; Sat, 6 Nov 2010 15:46:19 -0700 (PDT) In-Reply-To: References: Date: Sat, 6 Nov 2010 18:46:19 -0400 X-Google-Sender-Auth: 4cuBS-TsDHfNaaMc0lOAOnwB6r0 Message-ID: Subject: Re: [FlyRotary] Ec Modes From: Tracy To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=0016e65b6324de2b1504946a2808 --0016e65b6324de2b1504946a2808 Content-Type: text/plain; charset=ISO-8859-1 True, Mode 6 was originally put in to compensate for different sized primary & secondary injectors. It just happens to work for compensating for the zero intersect stuff Steve has been discussing. Note that for this latter purpose, the direction of adjustment is the opposite (richer) of when used to compensate for big secondaries (leaner). Tracy (just trying to add to the confusion : ) On Sat, Nov 6, 2010 at 10:47 AM, Ed Anderson wrote: > Ok, admitting to being a bit lazy after flying with the Ec2 for > approaching 8-9 years now, I decided to read the manual (again?). > > Here is a summary of *my understanding* of the EC2 Fuel related Modes - > subject to clarification by those (he?) who really understand the modes. > This brief summary *IS NOT* a substitute for reading the manual in > detail. Any errors, mistatements, lack in understanding of this summary > are mine alone, any suggestions for clarification welcomed! > > *Mode* *0 - Normal running mode* - pushing the program store button is > this mode does nothing - setting the program select to this mode prevents > inadvertent "adjustment" of the EC2 during flight. > > *Mode 1- MAP adjustment mode* - permits you to adjust the Fuel correction > factors for each bin (manifold pressure points) by using the Left Mixture > Program Knob and then storing the adjustment in the Fuel Map by pressing the > Program Store Button. > > This is an absolute adjustment to the current fuel MAP values, in other > words setting the Program Mixture control knob all the way CCW (lean) and > pressing store would place a minimum value (zero?) in that bin. Setting the > Mixture control knobe all the way CW (rich) would store a maximum value > (255?) in that bin. This contrasts to the Mode 9 adjustment of the MAP > table which is apparently incremental from the current setting. Note: *Injector > Diagnostic Mode:* With engine off pushing Program Store Button in this > mode will trigger the injector diagnostic mode - make certain your fuel > pumps are all OFF! > > *Mode 2- Copy MAP mode* - used to copy controller *A* programming to > controller *B.* > > *Mode 3 - Fuel Injector Flow Adjustment* - used to compensate in the MAP > table for the* use of larger injectors *(I.e. When *all four* injectors > have higher flow rates than approx 460 cc/min) than the stock 13B N/A > engine. > > If you can not adequately lean your engine with the larger injectors, it > appears that this mode can be used to "adjust the flow" to an acceptable > range. > > Note: I once tried going from my stock N/A 460 cc/min injectors to 550 > cc/min injectors - I could never get the engine to idle properly - always > too rich at one end or the other, so I went back to stock. If I had been > smarter and read the manual more closely, I think adjustment in this mode > might have solved the "too rich" idle problem > > *Mode 4 - Front Rotor Mixture Adjustment* - Used to compensate for small > differences in the mixture between the front and rear rotor - adjust front > rotor to match EGT of rear rotor - Note from the Ec2 Manual: > > You can accomplish this by monitoring the EGTs of the two rotors and > getting them to match as closely as possible. A digital EGT gauge is almost > a necessity to read small differences. > > *Mode 6 - Secondary Injector Differential Adjustment* - Used *if secondary > injectors have larger flow rates than primary injectors* - this may result > in an overly rich mixture above the staging point. > > This adjustment is used to compensate for the larger secondary injectors. > Normally, you would observe the Air/Fuel Ratio indication and would need to > lean the flow below staging point so that it would not be overly rich after > staging. At least that is what I think I read > > > *Mode 9 - Adjust MAP table entry *- Similar to Mode1 in > making adjustments of MAP table, but is used to make even finer > adjustments. > > While Mode 1 settings make absolute value changes to the value in the bin > of the MAP, Mode 9 is used to make smaller relative adjustments to the MAP > value in the bin being adjusted. The closer the Mixture knob is to 12:00 > the smaller the change, the further CCW (lean) or CW (rich) the greater the > relative adjustment. Read the instructions for details. > > *Mode 9 is recommended for making any IN-FLIGHT changes* to the MAP table > as the effects of this mode's changes are far less dramatic than being in > MODE 1 and having the knob fully CCW when you push the Program Store Button > {:>). The engine will cough for a moment (as it goes full lean) and then > shift to a more satisfactory fuel MAP value bin before continuing to run. I > don't about most of you - but I'm getting to the age that I don't like the > engine to cough for even a moment. > > Did I mention read the manual for a fuller description and understanding? > There is a lot of stuff in it and most of us will need to read it and > attempt making the adjustments before it really sticks. > > > One purpose of this summary, is that if my understanding is in error - then > I WANT to know! > > > Ed > > Edward L. Anderson > Anderson Electronic Enterprises LLC > 305 Reefton Road > Weddington, NC 28104 > http://www.andersonee.com > http://www.eicommander.com > --0016e65b6324de2b1504946a2808 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable True,=A0 Mode 6 was originally put in to compensate for different sized pri= mary & secondary injectors.=A0 It just happens to work for compensating= for the zero intersect stuff Steve has been discussing.=A0=A0 Note that fo= r this latter purpose, the direction of adjustment is the opposite (richer)= of when used to compensate for big secondaries (leaner).=A0

Tracy=A0 (just trying to add to the confusion : )

On Sat, Nov 6, 2010 at 10:47 AM, Ed Anderson <eanderson@carolina.rr.com= > wrote:
Ok, admitting to=A0being a bit lazy after flying = with=20 the Ec2 for approaching 8-9 years now, I decided to read the manual=20 (again?).
=A0
Here is a summary of my understanding of= =20 the EC2 Fuel related=A0Modes - subject to clarification by those (he?) who= =20 really understand the modes.=A0 This brief summary IS NOT a=20 substitute for reading the manual in detail.=A0 Any errors,=20 mistatements,=A0lack in understanding of this summary =A0are mine alone,=20 any suggestions for clarification welcomed!
=A0
Mode 0 - Normal running=20 mode -=A0pushing the program store button is this mode does nothing=20 - setting the program select=A0to =A0this mode prevents inadvertent=20 "adjustment" of the EC2 during flight.
=A0
Mode 1- MAP adjustment mode - permits you= =20 to adjust the Fuel correction factors for each bin (manifold pressure=20 points)=A0by using the Left Mixture Program Knob and then storing the=20 adjustment in the Fuel Map by pressing the Program Store Button.=A0=20
=A0
This is an absolute adjustment to the current fue= l MAP=20 values, in other words setting the Program Mixture control knob all the way= CCW=20 (lean) and pressing store would place a minimum value (zero?) in that bin.= =A0=20 Setting the Mixture control knobe all the way CW (rich) would store a maxim= um=20 value (255?) in that bin.=A0 This contrasts to the Mode 9 adjustment of the= =20 MAP table which is apparently=A0incremental from the current setting.=A0=20 =A0Note: Injector Diagnostic Mode:=A0 With engine off=20 pushing Program Store Button in this mode will trigger the injector diagnos= tic=20 mode - make certain your fuel pumps are all OFF!
=A0
Mode 2- Copy MAP mode - used to copy=20 controller A=A0programming =A0to controller=20 B.
=A0
Mode 3 - Fuel Injector Flow Adjustment -= =20 used to compensate in the MAP table for the use of larger injectors= =20 (I.e. When all four injectors have higher flow=20 rates than=A0approx 460 cc/min)=A0than the stock 13B N/A engine.=A0=20
=A0
If you can not adequately lean your engine with t= he larger=20 injectors, it appears that =A0this mode can be used to "adjust the flo= w" to=20 an acceptable range.
=A0
Note:=A0 I once tried going from my stock N/A 460= =20 cc/min injectors to 550 cc/min injectors - I could never get the engine to = idle=20 properly - always too rich at one end or the other, so I went back to=20 stock.=A0 If I had been smarter and read the manual more closely, I think= =20 adjustment in this mode might have solved the "too rich" idle=20 problem
=A0
Mode 4 - Front Rotor Mixture Adjustment -= =20 Used to compensate for small differences in the mixture=A0between the front= =20 and rear rotor - adjust front rotor to match EGT of rear rotor=A0 - Note fr= om=20 the Ec2 Manual:=20

You can accomplish this by monitoring the EGTs of the two= rotors=20 and getting them to match as closely as possible. A digital EGT gauge is al= most=20 a necessity to read small differences.

=A0
Mode 6 - Secondary Injector Differential=20 Adjustment - Used if secondary injectors have larger flow=20 rates than primary injectors - this=A0may=A0result in an=20 overly rich mixture above the staging point.=A0
=A0
This adjustment is used to compensate for the lar= ger=20 secondary injectors.=A0 Normally,=A0 you would observe the Air/Fuel Ratio= =20 indication and would need to lean the flow below staging point so that it w= ould=20 not be overly rich after staging. At least that is what I think I=20 read
=A0
=A0
Mode 9 - Adjust MAP table entry=A0=A0=20 - Similar to Mode1 in making=A0adjustments of MAP table, but is used=20 to make even finer adjustments.=A0
=A0
While Mode 1 settings make absolute value changes= to=20 the=A0value in the bin of =A0the MAP, Mode 9 is used to make smaller=20 relative adjustments to the MAP value in the bin being adjusted.=A0 The=20 closer the Mixture knob is to 12:00 the smaller the change, the further CCW= =20 (lean) or CW (rich) the greater the relative adjustment.=A0 Read the=20 instructions for details.
=A0
Mode 9 is recommended for making any IN-FLIGHT= =20 changes to the MAP table as the effects of=A0this mode's=20 =A0changes are far less dramatic than being in MODE 1 and having the knob= =20 fully CCW when you push the Program Store Button {:>).=A0 The engine wil= l=20 cough for a moment (as it goes full lean) and then shift to a more satisfac= tory=20 fuel MAP value bin=A0before continuing to run.=A0 I don't about most of= =20 you -=A0but I'm getting to the age that I don't like the engine to = cough for=20 even a moment.
=A0
Did I mention read the manual for a fuller descri= ption and=20 understanding?=A0 There is a lot of stuff in it and most of us will need to= =20 read it and attempt making the adjustments before it really sticks.<= /div>
=A0
=A0
One purpose of this summary, is that if my unders= tanding=20 is in error -=A0then I WANT to know!=A0
=A0
=A0
Ed
=A0
Edward L. Anderson
Anderson Electronic Enterpr= ises=20 LLC
305 Reefton Road
Weddington, NC 28104
http://www.andersonee.com
http://www.eicommander.com

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