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Date: Wed, 16 Sep 2009 21:41:06 -0400
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Message-ID: <1b4b137c0909161841n1e5e728cx3a8eb5dae0187502@mail.gmail.com>
Subject: Re: [FlyRotary] Re: Re RV-8 cooling test
From: Tracy Crook <tracy@rotaryaviation.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Content-Type: multipart/alternative; boundary=00c09f9b0950f407820473bc1bec

--00c09f9b0950f407820473bc1bec
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Ah-h-h; had you considered the use of a water manometerJ?

Al

It was not connected to an under cowl probe (my bad) but I had a better
instrument than a water manometer (a custom version of the EM2 with a low
air pressure readout) but there were other factors.  Oil temps right at
redline are distracting to me while trying to gather data.  The under cowl
temps were so high that the alternator was dropping the regulated voltage.
The coil temps were close to the point where failure occurs.  After landing,
the temps went high enough that the coils started misfiring at anything over
2300 rpm.  I wanted a test environment without so much stress.

Everything was so nice with the cowl off that I flew for about 45 minutes
while the EM2 auto programmed the EC2 map table.

Tracy

On Wed, Sep 16, 2009 at 6:29 PM, Al Gietzen <ALVentures@cox.net> wrote:

>
> Time is limited before I leave on vacation and I really needed to know the
> answer before I do.  So, last night I made the decision to fly the -8 one
> more time - This time Without the cowl on.  Secured anything that might get
> blown loose with tie wraps and did the deed.  Whoo Hoo!
>
>
>
>

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<p><font color=3D"blue" face=3D"Verdana" size=3D"2"><span style=3D"font-siz=
e: 11pt; font-family: Verdana; color: blue;">Ah-h-h; had you considered the=
 use of a
water manometer</span></font><font color=3D"blue" face=3D"Wingdings" size=
=3D"2"><span style=3D"font-size: 11pt; font-family: Wingdings; color: blue;=
">J</span></font><font color=3D"blue" face=3D"Verdana" size=3D"2"><span sty=
le=3D"font-size: 11pt; font-family: Verdana; color: blue;">? <br>
</span></font></p><font color=3D"#888888">

<p><font color=3D"blue" face=3D"Verdana" size=3D"2"><span style=3D"font-siz=
e: 11pt; font-family: Verdana; color: blue;">Al</span></font></p>

</font>








<br>It was not connected to an under cowl probe (my bad) but I had a better=
 instrument than a water manometer (a custom version of the EM2 with a low =
air pressure readout) but there were other factors.=A0 Oil temps right at r=
edline are distracting to me while trying to gather data.=A0 The under cowl=
 temps were so high that the alternator was dropping the regulated voltage.=
=A0 The coil temps were close to the point where failure occurs.=A0 After l=
anding, the temps went high enough that the coils started misfiring at anyt=
hing over 2300 rpm.=A0 I wanted a test environment without so much stress. =
<br>
<br>Everything was so nice with the cowl off that I flew for about 45 minut=
es while the EM2 auto programmed the EC2 map table.<br><br>Tracy<br><br><di=
v class=3D"gmail_quote">On Wed, Sep 16, 2009 at 6:29 PM, Al Gietzen <span d=
ir=3D"ltr">&lt;<a href=3D"mailto:ALVentures@cox.net">ALVentures@cox.net</a>=
&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"border-left: 1px solid rgb(204, =
204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">











<div link=3D"blue" vlink=3D"purple" lang=3D"EN-US">

<div>

<div>

<div><div class=3D"im">

<p><font face=3D"Times New Roman" size=3D"3"><span style=3D"font-size: 12pt=
;"><br>
Time is limited before I leave on vacation and I really needed to know the
answer before I do.=A0 So, last night I made the decision to fly the -8 one
more time - This time Without the cowl on. =A0Secured anything that might
get blown loose with tie wraps and did the deed.=A0 Whoo Hoo! </span></font=
></p>

<p><font color=3D"blue" face=3D"Verdana" size=3D"2"><span style=3D"font-siz=
e: 11pt; font-family: Verdana; color: blue;">=A0</span></font></p>

</div><br></div></div></div></div></blockquote></div><br>

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