X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imr-mb02.mx.aol.com ([64.12.207.163] verified) by logan.com (CommuniGate Pro SMTP 5.4.5) with ESMTP id 5586039 for flyrotary@lancaironline.net; Thu, 07 Jun 2012 13:13:33 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.207.163; envelope-from=argoldman@aol.com Received: from mtaomg-da04.r1000.mx.aol.com (mtaomg-da04.r1000.mx.aol.com [172.29.51.140]) by imr-mb02.mx.aol.com (8.14.1/8.14.1) with ESMTP id q57HCmNq018885 for ; Thu, 7 Jun 2012 13:12:48 -0400 Received: from core-dsa004a.r1000.mail.aol.com (core-dsa004.r1000.mail.aol.com [172.29.252.77]) by mtaomg-da04.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id 35D0DE000090 for ; Thu, 7 Jun 2012 13:12:48 -0400 (EDT) References: To: flyrotary@lancaironline.net Subject: Re: [FlyRotary] Re: EGT In-Reply-To: X-MB-Message-Source: WebUI MIME-Version: 1.0 From: argoldman@aol.com X-MB-Message-Type: User Content-Type: multipart/alternative; boundary="--------MB_8CF12E7E5837024_2B80_B812_webmail-d160.sysops.aol.com" X-Mailer: AOL Webmail 36301-STANDARD Received: from 24.14.64.174 by webmail-d160.sysops.aol.com (205.188.252.86) with HTTP (WebMailUI); Thu, 07 Jun 2012 13:12:47 -0400 Message-Id: <8CF12E7E5778935-2B80-2BC4@webmail-d160.sysops.aol.com> X-Originating-IP: [24.14.64.174] Date: Thu, 7 Jun 2012 13:12:48 -0400 (EDT) x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20110426; t=1339089168; bh=Qx4S9PAUCHD7uSApqZn7TPEtT6zJhqu4veaANfxh6KA=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=RfVXoFMVSWN2bM0LbYPKIoTUZ9wKPxeM6iKu4AJjEUqn8TadWYyGxoMhba/dTF1bV aUlFzwrmqq/p1isNQSGpGC3fSahdfnP0FdAXGnJ6sqcqwGKmfU7RRN7+E5I5QYgrey dxBvSJrRtN78qev384CUcL361HcY4UkQdljAOmKM= X-AOL-SCOLL-SCORE: 0:2:494212288:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d338c4fd0e110752a This is a multi-part message in MIME format. ----------MB_8CF12E7E5837024_2B80_B812_webmail-d160.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="us-ascii" Greetings Chris, You may have a problem with the Skyview, or perhaps you have programmed it = incorrectly. A call to Dynon would probably clear that up fairly easily. A = quick and dirty test is to connect the EGTs to your EM-3 (or 2) . this, I b= elieve will be necessary, anyway, in order to auto-tune the tables. I also have both of these monitors. The renesis is a little different in th= at it has 3 exhaust ports (one a combination of front and back--Frack or ba= ont--. I use the EGT's from front and back to go to em-3 and the middle one to go = to the skyview.=20 Assuming that you get the blinking blinking (duplication intended) problem = fixed, I would recommend that you connect the EGTs to your EM-whatever unti= l you get your system flight tuned and then switch them to the skyview. Alt= ernatively you could put 2 sensors in each stack,=20 Because you are really not looking at specific numbers (although available-= -if indeed they are accurate) and are really looking at relational values-= - hotter or colder as you change the mixture, with respect to peak, It seem= s to me, and others may differ, that the location, in the exhaust pipes is = of less concern than the equal distance from the exhaust ports that the pro= bes are located. Obviously, the farther away from the port the lower the te= mperature will read due to loss of heat through the pipe. A question on your prop. You mentioned that you were only able to get 6500 RPM at full throttle and = fine pitch. I know that you may not have had the wherewithal to look at thi= s (considering the amount of adrenalin pumping through your system with the= tests), but did the engine RPM increase as you were moving during your Hig= h speed taxi How was your acceleration?=20 What kinds of prop noises were you hearing and how did they change, if at a= ll? Is it possible that when you were static, your blades, were indeed partiall= y stalled? Rich=20 =20 =20 =20 -----Original Message----- From: Chris Barber To: Rotary motors in aircraft Sent: Thu, Jun 7, 2012 11:45 am Subject: [FlyRotary] Re: EGT Tracy,=20 Speaking of EGT's. I am using my Dynon Skyview to read my EGT's and not the= EM2.=20 With the EGT sensors not connected the EGT readout blinks. I asked you if t= here was a way to stop the blinking and you suggested connecting the sensor= s to each other which I did, both the red wire to red and yellow to yellow = on the separate sensors as well as the red to yellow on the individual sens= ors. None of this stopped the blinking.=20 Do you have any other suggestions as the blinking is a bit distracting? Thanks.=20 Chris Sent from my iPhone 4 On Jun 7, 2012, at 10:47 AM, "Tracy" wrote: Possible it may be going open (thermocouple sensors are normally a shorted = junction) but also possible you are picking up noise on the leads from some= source. These are millivolt level signals so it doesn't take much noise t= o make a wild reading. Keep leads away from high tension wires (spark plug= leads) and lines with a lot of switching current (injector, ignition coil= power, etc). Tracy On Wed, Jun 6, 2012 at 11:01 PM, wrote: Info needed about EGT sensors, on my RWS EM2 #2 EGT about every 10 seconds = will come up as 4000 deg. F. or so. Is the sensor going open or shorted in= termittently. Have not checked it yet, just removed break-in oil after 24 = hrs. run time & went with 20w50w full synthetic, getting ready for first fl= ight ( got delayed last year by coolant & oil temp readings in-op., solved = & my youngest daughter grad. EMU, Meagan & Cody moved to Bloomington Illino= is for Cody's new job, with dad as one of the movers ). David R. Cook R= V6A Rotary Lansing MI.=20 =20 ----------MB_8CF12E7E5837024_2B80_B812_webmail-d160.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="us-ascii" Greetings Chris,

You may have a problem with the Skyview, or perhaps you have programmed it = incorrectly. A call to Dynon would probably clear that up fairly easily. A = quick and dirty test is to connect the EGTs to your EM-3 (or 2) . this, I b= elieve will be necessary, anyway, in order to auto-tune the tables.

I also have both of these monitors. The renesis is a little different in th= at it has 3 exhaust ports (one a combination of front and back--Frack or ba= ont--.

I use the EGT's from front and back to go to em-3 and the middle one to go = to the skyview.

Assuming that you get the blinking blinking (duplication intended) problem = fixed, I would recommend that you connect the EGTs to your EM-whatever unti= l you get your system flight tuned and then switch them to the skyview. Alt= ernatively you could put 2 sensors in each stack,

Because you are really not looking at specific numbers (although available-= -if indeed they are accurate) and are really looking at  relational va= lues-- hotter or colder as you change the mixture, with respect to peak, It= seems to me, and others may differ, that the location, in the exhaust pipe= s is of less concern than the equal distance from the exhaust ports that th= e probes are located. Obviously, the farther away from the port the lower t= he temperature will read due to loss of heat through the pipe.

A question on your prop.

You mentioned that you were only able to get 6500 RPM at full throttle and = fine pitch. I know that you may not have had the wherewithal to look at thi= s (considering the amount of adrenalin pumping through your system with the= tests), but did the engine RPM increase as you were moving during your Hig= h speed taxi
How was your acceleration?
What kinds of prop noises were you hearing and how did they change, if at a= ll?

Is it possible that when you were static, your blades, were indeed partiall= y stalled?

Rich



-----= Original Message-----
From: Chris Barber <cbarber@texasattorney.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Thu, Jun 7, 2012 11:45 am
Subject: [FlyRotary] Re: EGT

Tracy, 
Speaking of EGT's. I am using my Dynon Skyview to read my EGT's and not the EM2. 

With the EGT sensors not connected the EGT readout blinks. I asked you if there was a way to stop the blinkin= g and you suggested connecting the sensors to each other which I did, both = the red wire to red and yellow to yellow on the separate sensors as well as= the red to yellow on the individual sensors. None of this stopped the blinking. 

Do you have any other suggestions as the blinking is a bit distracting?

Thanks. 

Chris

Sent from my iPhone 4

On Jun 7, 2012, at 10:47 AM, "Tracy" <rwstracy@gmail.com> wrote:

Possible it may be going open (thermocouple sensors are normally a sho= rted junction) but also possible you are picking up noise on the leads from= some source.  These are millivolt level signals so it doesn't take mu= ch noise to make a wild reading.  Keep leads away from high tension wires (spark plug leads)  and lines with= a lot of switching current (injector, ignition coil power, etc).

Tracy

On Wed, Jun 6, 2012 at 11:01 PM, <hoursaway1@comcast.net= > wrote:
Info needed about EGT sensors, on my RWS EM2 #2 EGT about every 10 sec= onds will come up as 4000 deg. F. or so.  Is the sensor going open or = shorted intermittently.  Have not checked it yet, just removed break-i= n oil after 24 hrs. run time & went with 20w50w full synthetic, getting ready for first flight ( got delayed last year by = coolant & oil temp readings in-op., solved & my youngest daugh= ter grad. EMU, Meagan & Cody moved to Bloomington Illinois fo= r Cody's new job, with dad as one of the movers ).    David R. Cook  RV6A Rotary  Lansing MI. 

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