X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.123] verified) by logan.com (CommuniGate Pro SMTP 5.3.10) with ESMTP id 4558189 for flyrotary@lancaironline.net; Sat, 06 Nov 2010 18:49:04 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.123; envelope-from=eanderson@carolina.rr.com Return-Path: X-Authority-Analysis: v=1.1 cv=pepdxKapwHuwCZNFD5uob2wvham6E+RljB0uXw08FdQ= c=1 sm=0 a=rPkcCx1H5rrOSfN0dPC7kw==:17 a=ayC55rCoAAAA:8 a=arxwEM4EAAAA:8 a=r1ClD_H3AAAA:8 a=kHBquUuEy5Utrg4Woi4A:9 a=JLKVunfZ_HTiOxVyj_0A:7 a=xqSq5P0u8Chvam7cUBA-ctdiIZkA:4 a=wPNLvfGTeEIA:10 a=UretUmmEAAAA:8 a=Ia-xEzejAAAA:8 a=E93lBu2AAAAA:8 a=wrWTOE6h7adLeFuV_J4A:9 a=3-Vtgkst71mp11rGURYA:7 a=NJDO4DHXYyld4NzSSgBj4Td2eQQA:4 a=iVkDmfvjeKcA:10 a=EzXvWhQp4_cA:10 a=hO30gm18fF0A:10 a=MpuOTR30KwMA:10 a=x6VBWS02HY8A:10 a=d1n8sfsg-lQA:10 a=NWVoK91CQyQA:10 a=rPkcCx1H5rrOSfN0dPC7kw==:117 X-Cloudmark-Score: 0 X-Originating-IP: 174.110.167.5 Received: from [174.110.167.5] ([174.110.167.5:54947] helo=EdPC) by cdptpa-oedge03.mail.rr.com (envelope-from ) (ecelerity 2.2.3.46 r()) with ESMTP id 95/AD-19545-B3BD5DC4; Sat, 06 Nov 2010 22:48:28 +0000 Message-ID: <8562D4F95E1E474AA4CAB29EEE0E8042@EdPC> From: "Ed Anderson" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: Ec Modes Date: Sat, 6 Nov 2010 18:48:08 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0009_01CB7DE3.2778AFA0" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 This is a multi-part message in MIME format. ------=_NextPart_000_0009_01CB7DE3.2778AFA0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Ok, that answers the question I just posted to the list. Mode 6 can be = used to lean or enrich. Ed From: Tracy=20 Sent: Saturday, November 06, 2010 6:46 PM To: Rotary motors in aircraft=20 Subject: [FlyRotary] Re: Ec Modes 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). =20 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. =20 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. = =20 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:=20 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. =20 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. =20 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! =20 Ed Edward L. Anderson Anderson Electronic Enterprises LLC 305 Reefton Road Weddington, NC 28104 http://www.andersonee.com http://www.eicommander.com ------=_NextPart_000_0009_01CB7DE3.2778AFA0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Ok, that answers the question I just posted to = the=20 list.  Mode 6 can be used to lean or enrich.
 
Ed

From: Tracy
Sent: Saturday, November 06, 2010 6:46 PM
Subject: [FlyRotary] Re: Ec Modes

True,  Mode 6 was originally put in to compensate = for=20 different sized primary & secondary injectors.  It just happens = to work=20 for compensating for the zero intersect stuff Steve has been=20 discussing.   Note that for this latter purpose, the direction = of=20 adjustment is the opposite (richer) of when used to compensate for big=20 secondaries (leaner). 

Tracy  (just trying to add to = the=20 confusion : )

On Sat, Nov 6, 2010 at 10:47 AM, Ed Anderson = <eanderson@carolina.rr.com&g= t;=20 wrote:
Ok, admitting to being a bit lazy after = flying with=20 the Ec2 for approaching 8-9 years now, I decided to read the manual=20 (again?).
 
Here is a summary of my understanding = of the EC2=20 Fuel related Modes - subject to clarification by those (he?) who = really=20 understand the modes.  This brief summary IS NOT a = substitute for=20 reading the manual in detail.  Any errors, = mistatements, lack in=20 understanding of this summary  are mine alone, any suggestions = for=20 clarification welcomed!
 
Mode 0 - Normal running mode=20 - pushing the program store button is this mode does nothing - = setting=20 the program select to  this mode prevents inadvertent = "adjustment"=20 of the EC2 during flight.
 
Mode 1- MAP adjustment mode - permits = you to=20 adjust the Fuel correction factors for each bin (manifold pressure=20 points) by using the Left Mixture Program Knob and then storing = the=20 adjustment in the Fuel Map by pressing the Program Store Button.  =
 
This is an absolute adjustment to the current = fuel MAP=20 values, in other words setting the Program Mixture control knob all = the way=20 CCW (lean) and pressing store would place a minimum value (zero?) in = that=20 bin.  Setting the Mixture control knobe all the way CW (rich) = would store=20 a maximum value (255?) in that bin.  This contrasts to the Mode 9 = adjustment of the MAP table which is apparently incremental from = the=20 current setting.   Note: Injector Diagnostic = Mode:  With=20 engine off pushing Program Store Button in this mode will trigger the = injector=20 diagnostic mode - make certain your fuel pumps are all = OFF!
 
Mode 2- Copy MAP mode - used to copy = controller=20 A programming  to controller B.
 
Mode 3 - Fuel Injector Flow Adjustment = - used to=20 compensate in the MAP table for the use of larger injectors=20 (I.e. When all four injectors have higher flow rates=20 than approx 460 cc/min) than the stock 13B N/A engine.  =
 
If you can not adequately lean your engine = with the=20 larger injectors, it appears that  this mode can be used to = "adjust the=20 flow" to an acceptable range.
 
Note:  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=20 idle properly - always too rich at one end or the other, so I went = back to=20 stock.  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
 
Mode 4 - Front Rotor Mixture Adjustment = - Used to=20 compensate for small differences in the mixture between the front = and=20 rear rotor - adjust front rotor to match EGT of rear rotor  - = Note from=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=20 almost a necessity to read small = differences.

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

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