From: "Mark R Steitle" <mark.steitle@austin.utexas.edu>
Date: 2005/06/08 Wed AM 11:03:29 EDT
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: Tracy, EM-2 question

Bill,

Excellent point.  That was one of my concerns too.  I ended up changing
to a different (shorter) temp sender that just barely protruded into the
flow.  Worked out well.  

Mark S.   

________________________________

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of William
Sent: Wednesday, June 08, 2005 8:39 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Tracy, EM-2 question

 

Thanks Mark, doesn't the temperature probe tend to block the oil flow
through the 'cool fitting'?

Bill Schertz
KIS Cruiser # 4045

----- Original Message ----- From: Mark R Steitle <mailto:mark.steitle@austin.utexas.edu>   To: Rotary motors in aircraft
<mailto:flyrotary@lancaironline.net>   Sent: Tuesday, June 07, 2005 7:55 AM

Subject: [FlyRotary] Re: Tracy, EM-2 question

Bill, I drilled an extra hole in the oil filter adapter for an extra
pressure sensor.  Using this cool fitting (see attachment), I added a
port to the front cover oil outlet for a temp sensor to enable me to
measure the delta T through the oil cooler (temporary arrangement).  For
coolant, I drilled an extra port in the thermostat housing for the extra
coolant temp sensor.  I chose not to add a second coolant pressure
sensor.  The fuel pressure regulator had an unused port that I used
(with an adapter) for the extra fuel pressure sender, but I could have
just as easily used a tee.

Mark S.  
________________________________


From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On Behalf Of David Leonard
Sent: Monday, June 06, 2005 10:36 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Tracy, EM-2 question

On 6/6/05, William <wschertz@ispwest.com> wrote: Mark,

where did you put all the sensors?

Oil temp? Water pressure? etc.

Bill Schertz
KIS Cruiser # 4045

----- Original Message ----- From: Mark R Steitle
<mailto:mark.steitle@austin.utexas.edu>   To: Rotary motors in aircraft
<mailto:flyrotary@lancaironline.net>   Sent: Monday, June 06, 2005 2:11 PM

Subject: [FlyRotary] Re: Tracy, EM-2 question


Bill,

I should have consulted with Tracy before I went down
this road myself.  Anyway, I just installed redundant senders for oil,
coolant, and fuel.  Temp sensors are very lightweight.  Pressure sensors
are just a tad heavier.  I didn't get the extra data board on my EFIS,
so EGT's & CHT's are on the EM-2 only.  Since the weight penalty of the
EFIS-1 has already been paid, I figured why not go with engine
instrument redundancy.  The only one I'm not satisfied with is the
engine RPM on the EFIS-1.  It doesn't agree with the RPM readout on the
EM-2.  Until proven otherwise, I'm assuming the EM-2 figure is correct.
Once I get the prop installed and can run it without fear of overspeed,
I can put a prop tach on it and know for sure.  Then I can calibrate the
EFIS-1 RPM's.  Be sure to calibrate all sensors!   Mark S.       BTW, I am using the Blumountain EFIS Lite G3 and Love it
(despite its continued minor issues)..  I mean, that thing is awesome.

-- Dave Leonard
Turbo Rotary RV-6 N4VY
http://members.aol.com/_ht_a/rotaryroster/index.html
http://members.aol.com/vp4skydoc/index.html
________________________________


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