X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from aspensprings.uwyo.edu ([129.72.10.32] verified) by logan.com (CommuniGate Pro SMTP 5.4c2) with ESMTPS id 4902150 for flyrotary@lancaironline.net; Thu, 10 Mar 2011 12:36:03 -0500 Received-SPF: none receiver=logan.com; client-ip=129.72.10.32; envelope-from=SBoese@uwyo.edu Received: from ponyexpress-ht2.uwyo.edu (ponyexpress-ht2.uwyo.edu [10.84.60.209]) by aspensprings.uwyo.edu (8.14.4/8.14.4) with ESMTP id p2AHZOQX007597 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL) for ; Thu, 10 Mar 2011 10:35:25 -0700 (MST) (envelope-from SBoese@uwyo.edu) Received: from ponyexpress-mb5.uwyo.edu ([fe80::9813:248c:2d68:a28b]) by ponyexpress-ht2 ([10.84.60.209]) with mapi; Thu, 10 Mar 2011 10:35:23 -0700 From: "Steven W. Boese" To: Rotary motors in aircraft Date: Thu, 10 Mar 2011 10:35:14 -0700 Subject: RE: [FlyRotary] Re: More staging and tuning Thread-Topic: [FlyRotary] Re: More staging and tuning Thread-Index: AcvfQnBXk+B1m76dR0+/CIqkn6s3SAABcL6Q Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: yes X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: multipart/related; boundary="_005_E1AA3B1AF41D8049B1E3FBD5E2256260088739723Aponyexpressmb_"; type="multipart/alternative" MIME-Version: 1.0 --_005_E1AA3B1AF41D8049B1E3FBD5E2256260088739723Aponyexpressmb_ Content-Type: multipart/alternative; boundary="_000_E1AA3B1AF41D8049B1E3FBD5E2256260088739723Aponyexpressmb_" --_000_E1AA3B1AF41D8049B1E3FBD5E2256260088739723Aponyexpressmb_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Jeff, I have been using the default MCT with no changes. You are correct about the effect of the different modes on the MCT. That l= ast sentence could have been worded better: The only difference in using the second method is that just a few minor co= rrections (if any) to the default table seem to be needed after these initi= al two or three adjustments. Steve From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Beh= alf Of Jeff Whaley Sent: Thursday, March 10, 2011 9:44 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: More staging and tuning Steve, or Bill: When using the "simplified" #2 method (restore defaults, mode 3 below stagi= ng, mode 6 above staging, mode 2 at idle, then mode 1 or 9) what does your = resulting MCT table look like? Is it simply a flat line at or near zero (de= fault) for all data points? As I understand it the EC2 will not change MCT displayed values when using = Modes 3, 6 or 2 ... but will start showing MCT corrections with Modes 1 or= 9. Jeff From: "Steven W. Boese" Subject: RE: [FlyRotary] Re: more staging and tuning Date: Thu, 10 Mar 2011 01:13:29 -0700 To: Rotary motors in aircraft [cid:image001.gif@01CBDF0E.7631C320] [cid:image002.gif@01CBDF0E.7631C320] Al, I apologize for the long posts. In my opinion, the short answer to your question is YES. The EC2 has the versatility to be tuned in a number of ways. It appears to= me, at least, that a significant part of the MCT corrections needed is the= result of injector lag time. There are at least two ways of dealing with = this. One is to experimentally determine this for each address in the table. Thi= s can be difficult since there are a lot of addresses and the corrections c= an be very different for adjacent addresses. In addition, some of this tun= ing can only be done in flight. Some users have more difficulty with this = than others. This may be because of the individual user or the individual = equipment configuration or both. At any rate, it seems to be a recurrent p= roblem. A second way to deal with injector lag is by including it in the calculatio= n of the injector pulse width. Doing so removes much of the MCT adjustment= s that are needed throughout the table and also removes the discontinuities= . This calculation is not difficult as demonstrated by the effectiveness o= f the hardware addition that I made which has no intelligence. Either method requires adjustments with modes 2,3 and, in some cases, 6. T= he only difference in using the second method is that the entire table is n= early correct after these initial two or three adjustments. Steve --_000_E1AA3B1AF41D8049B1E3FBD5E2256260088739723Aponyexpressmb_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Jeff,

 

I have been using the default MCT with no changes.

 

You are correct about the effect of the different modes on = the MCT.  That last sentence could have been worded better:

=  

The only difference in using the second = method is that  just a few minor corrections (if any) to the default t= able seem to be needed after these initial two or three adjustments.

Steve

=

 

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironli= ne.net] On Behalf Of Jeff Whaley
Sent: Thursday, March 10,= 2011 9:44 AM
To: Rotary motors in aircraft
Subject: [F= lyRotary] Re: More staging and tuning

 

Steve, or Bill:<= o:p>

When using the “simplified” = #2 method (restore defaults, mode 3 below staging, mode 6 above staging, mo= de 2 at idle, then mode 1 or 9) what does your resulting MCT table look lik= e? Is it simply a flat line at or near zero (default) for all data points?<= o:p>

As I understand it the EC2 will not chan= ge MCT displayed values when using Modes 3, 6 or 2 … but will start s= howing  MCT corrections with Modes 1 or 9.

Jeff

 

From:

"Steven W. Boese" <SBoese@uwyo.edu>

Subject:

RE: [FlyRotary] Re: more staging and t= uning

Date:

Thu, 10 Mar 2011 01:13:29 -0700

To:

Rotary motors in aircraft <flyrotary@lanc= aironline.net>

3D"Message

3D"Un=

<= tr>

Al,

 

I apologize= for the long posts.

 <= /span>

In my opinion, the short answer to your question i= s YES.

 

The EC2 has the versatility to be tuned in a number of ways.&nbs= p; It appears to me, at least, that a significant part of the MCT correctio= ns needed is the result of injector lag time.  There are at least two = ways of dealing with this. 

&nb= sp;

One is to experimentally determine = this for each address in the table.  This can be difficult since there= are a lot of addresses and the corrections can be very different for adjac= ent addresses.  In addition, some of this tuning can only be done in f= light.  Some users have more difficulty with this than others.  T= his may be because of the individual user or the individual equipment confi= guration or both.  At any rate, it seems to be a recurrent problem.

 

 

Either method requires adjustments with modes 2,3 and, in some c= ases, 6.  The only difference in using the second method is that the e= ntire table is nearly correct after these initial two or three adjustments.=

 

<= span style=3D'font-size:12.0pt;font-family:"Times New Roman","serif";color:= black'>Steve

 

 

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