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Subject: RE: [FlyRotary] tachometer recommendation
Date: Sun, 14 Jan 2007 16:43:07 -0600
Message-ID: <5B59870CA143DD408BD6279374B74C8B010C205E@MAIL02.austin.utexas.edu>
Thread-Topic: [FlyRotary] tachometer recommendation
Thread-Index: Acc4EQXvOoPcBPkATnioYtM29SEP8wAGj7Hq
References: <list-1758791@logan.com>
From: "Steitle, Mark R" <mark.steitle@austin.utexas.edu>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>

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Lou,=20
I've been using the EM-2's tach feature.  It seems to be right on the =
money.  I had trouble getting a good reading out of the BMA E-1, jumping =
all over the place, and gave up on it for the time being.  Now, I've =
decided that I'll try to get a prop rpm input from the M/T controller to =
display on the BMA.  I'll let you know how that turns out when I get =
around to doing it. =20
=20
As for tuning, I too have been fighting to get a smooth idle.  It just =
doesn't seem to smooth out like I know it should down around idle.  I =
was getting a high EGT reading on #1 rotor and so I pulled the injectors =
and had them all cleaned.  After reassembly, the high EGT reading was =
still there.  Turned out to be a bad EGT sensor.  I'm still trying to =
determine if it is the sensor or the wiring to the EM-2.  Once I get =
that ironed out, I'll attempt to get the EM-2 to do an auto-tune.  =
Hopefully, once that's done she'll be purring like a kitten, even at =
idle.  One thing I've noticed is that whenever I run it, it always draws =
a crowd. =20
=20
Mark S.

________________________________

From: Rotary motors in aircraft on behalf of lou rubin
Sent: Sun 1/14/2007 1:19 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] tachometer recommendation


What tach would be compatable with a 20 B ?We were
using the blue mountain for engine speed ,however the
unit had to be on for the engine to run smoothly. Im
wondering if the 20B would be a different pulse rate
then the 13B

Lou


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