X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from zproxy.gmail.com ([64.233.162.202] verified) by logan.com (CommuniGate Pro SMTP 5.0c1) with ESMTP id 685308 for flyrotary@lancaironline.net; Mon, 29 Aug 2005 00:20:17 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.233.162.202; envelope-from=wdleonard@gmail.com Received: by zproxy.gmail.com with SMTP id z3so533576nzf for ; Sun, 28 Aug 2005 21:19:32 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references; b=eunOmGlORJ5dvJUaOEZc66b1G1lRtpy5agJgYknJ1uk/Z0r6Gt62r64qhSh/FCx4YIiVOLgYmYqw5uJI6i+57hKUI8G9dlFk5qjVXszdOSzpBI3feVC6s6OTfyGZGrsq++zcP7Z/STEgYPby2U7vxvK+tza9TeVx20V4l2TiPc4= Received: by 10.37.15.28 with SMTP id s28mr572927nzi; Sun, 28 Aug 2005 21:19:32 -0700 (PDT) Received: by 10.36.8.13 with HTTP; Sun, 28 Aug 2005 21:19:32 -0700 (PDT) Message-ID: <1c23473f05082821197f48a510@mail.gmail.com> Date: Sun, 28 Aug 2005 21:19:32 -0700 From: David Leonard To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Analog Digital system comparison In-Reply-To: Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_14021_15493740.1125289172936" References: ------=_Part_14021_15493740.1125289172936 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline But Ed, when can I get MINE? !!???!!! :-) =20 --=20 Dave Leonard Turbo Rotary RV-6 N4VY http://members.aol.com/_ht_a/rotaryroster/index.html http://members.aol.com/_ht_a/vp4skydoc/index.html=20 On 8/28/05, Ed Anderson wrote:=20 >=20 > Hi George, > No comparison. Tracy's offers much more in terms of both engine and=20 > aircraft performance data. This is not a Fuel management system, I refer = to=20 > it as a Fuel Monitoring System. It offers no aircraft nor engine performa= nce=20 > data (other than RPM, It focuses on Fuel Flow, Fuel Used and Air/Fuel Rat= io=20 > indicator). If I am able to read the EC2 Fuel Map and display the fuel MA= P=20 > then it will provide a bit more insight in how well your EC2 MAP is set u= p.=20 > You'll still have to change it using the EC2 controls, so it is probably= =20 > better than having nothing. But, I would never consider it even close to= =20 > what Tracy's EM2 can provide. Plus, I am certain Tracy will continue to a= dd=20 > to its capabilities. > I can see no reason anyone who has an EM2 would ever want/need one - but= ,=20 > if you don't have the panel space for an EM2 then this might be a better= =20 > than nothing alternative. > Ed A > =20 > ----- Original Message -----=20 > *From:* George Lendich =20 > *To:* Rotary motors in aircraft =20 > *Sent:* Sunday, August 28, 2005 6:36 PM > *Subject:* [FlyRotary] Re: Analog Digital system comparison >=20 > Ed,=20 > How does this differ from Tracy's system of fuel management ? > George >=20 > This may be of interest to some. > Here are photos of my two fuel monitoring systems, comparing the origina= l=20 > Analog system with the new Digital System. > The analog system served long and well, giving accuracy of fuel flow and= =20 > fuel used to less than a 1% error. However, it was large, had 9 chips and= =20 > only provided two bits of data - *Fuel Flow* and *Fuel Used* as displayed= =20 > information. Any change required a change to the design, new chips and a = new=20 > board. Very limited upgrade capability and just outdated (well, it actual= ly=20 > was when I designed it - but, being an old analog type myself, it was a= =20 > interim system until I could learn a bit about this digital world) > The digit system is much smaller, the one shown used 2 chips (since=20 > reduced to one chip- the microprocessor) and provides 9 different fuel=20 > factors (including Air/Fuel ratio indication), has user settable alarms,= =20 > remembers fuel parameters at shut down and has an automatic calibration= =20 > system. Software changes can be easily (relative speaking) make to=20 > accommodate changes and upgrades. Currently waiting for a new board for= =20 > version 2 of the digital - this one will have a larger LCD screen (but wi= ll=20 > still fit 2 1/4" hole) with graphical capability which I hope to be able = to=20 > display the EC2 fuel map in graphical form. The activation buttons will b= e=20 > re-positioned so that even my fat fingers can better push them.=20 > So after many years of use - old reliable (but out-dated) analog system= =20 > is being retired with honors. > Ed > Ed Anderson > Rv-6A N494BW Rotary Powered > Matthews, NC > eanderson@carolina.rr.com >=20 > ------------------------------ >=20 > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ >=20 > ------=_Part_14021_15493740.1125289172936 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline
But Ed,  when can I get MINE?   !!???!!!  &nb= sp; :-)
 
On 8/28/05, = Ed Anderson <eanderson@= carolina.rr.com> wrote:
Hi George,
 
No comparison.  Tracy's offers much more in = terms of both engine and aircraft performance data.  This is not a Fue= l management system, I refer to it as a Fuel Monitoring System.  It of= fers no aircraft nor engine performance data (other than RPM,  It focu= ses on  Fuel Flow, Fuel Used and Air/Fuel Ratio indicator). = If I am able to read the EC2 Fuel Map and display the fuel MAP then i= t will provide a bit more insight in how well your EC2 MAP is set up. = You'll still have to change it using the EC2 controls, so it is = probably better  than having nothing.  But, I would never conside= r it even close to what Tracy's EM2 can provide.  Plus, I am certain T= racy will continue to add to its capabilities.
 
I can see no reason anyone who has an EM2 would e= ver want/need one  - but, if you don't have the panel space for an EM2=  then this might be a better than nothing alternative.
 
Ed A
 
 
----- Original Message -----
Sent: Sunday, August 28, 2005 6:36 P= M
Subject: [FlyRotary] Re: Analog Digi= tal system comparison

 
Ed,
How does this differ from Tracy's syst= em of fuel management ?
George
This may be of interest to some.
 
Here are photos of my two fuel monitoring systems= , comparing the original Analog system with the new Digital System.<= /div>
 
The analog system served long and well, giving ac= curacy of fuel flow and fuel used to less than a 1% error.  However, i= t was large, had 9 chips and only provided two bits of data - Fuel = Flow and Fuel Used as displayed information.  An= y change required a change to the design, new chips and a new board.  = Very limited upgrade capability and just outdated (well, it actually was wh= en I designed it - but, being an old analog type myself,  it was a int= erim system until I could learn a bit about this digital world)
 
The digit system is much smaller, the one shown u= sed 2 chips (since reduced to one chip- the microprocessor) and provides 9 = different fuel factors (including Air/Fuel ratio indication), has user sett= able alarms, remembers fuel parameters at shut down and has an automatic ca= libration system. Software changes can be easily (relative speaking) make t= o accommodate changes and upgrades.  Currently waiting for a new board= for version 2 of the digital - this one will have a larger LCD screen (but= will still fit 2 1/4" hole) with graphical capability which I hope to= be able to display the EC2 fuel map in graphical form.  The activatio= n buttons will be re-positioned so that even my fat fingers can better push= them. =20
 
So after many years of use - old reliable (b= ut out-dated) analog system is being retired with honors.
 
Ed
 
Ed Anderson
Rv-6A N494BW Rotary Powered
Mat= thews, NC
eanderson@carolin= a.rr.com

--
Homepage:  http://w= ww.flyrotary.com/
Archive and UnSub:   http://mail.lancaironline.net/lists/flyrotary/


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