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Subject: Re: [LML] Re: Figuring out the pressurization system IV-P , and
 checking for leaks on the ground
From: "William A. Hogarty" <billhogarty@gmail.com>
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WOW John.....is that another one of those fighter pilot stories after happy
hour???  Bill H.

On Tue, Sep 13, 2011 at 3:20 AM, John Hafen <j.hafen@comcast.net> wrote:

> Dico:  My favorite way to find leaks on the ground is to fire up a good
> Monte Christo and have someone outside looking for smoke.
>
> Doesn't always work, but at least you get to enjoy a good cigar.
>
> Cigars can be used for navigation as well.  You have to do a route in VFR
> conditions a few times, and figure out just where you are on the cigar
> before it is time to descend.  With practice, at the right point on the
> cigar, you can descend through the deck to your desired air patch.
>
> John
>
>
> On Sep 12, 2011, at 6:34 PM, Dico Reijers wrote:
>
> Hi Brent,
>
> Thanks for your reply on the IV-P pressurization.  I found it quite helpful
> and informative as I figure out the pressurization system.
>
> From my limited testing so far (flying at 10-12k), I've noticed that the
> pressurization isn't linear.  At 10k my cabin altitude (according to the
> indicator) is 5k and the PSI is perhaps 2 or 2.5 differential...  since the
> POH suggests a 8000' cabin at FL220... I am surprised that I can climb an
> additional 12k and have the cabin altitude only rise an additional 3k.  I
> was flying at 31" / 2500.
>
> How do you check for leaks on the ground?
>
> thanks,
>
> Dico
>
>
>
>
> --
> For archives and unsub
> http://mail.lancaironline.net:81/lists/lml/List.html
>

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WOW John.....is that another one of those fighter pilot stories after happy=
 hour???=A0 Bill H. =A0=A0 <br><br><div class=3D"gmail_quote">On Tue, Sep 1=
3, 2011 at 3:20 AM, John Hafen <span dir=3D"ltr">&lt;<a href=3D"mailto:j.ha=
fen@comcast.net">j.hafen@comcast.net</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex;">Dico: =A0My favorite way to find leaks on t=
he ground is to fire up a good Monte Christo and have someone outside looki=
ng for smoke.<br>

<br>
Doesn&#39;t always work, but at least you get to enjoy a good cigar.<br>
<br>
Cigars can be used for navigation as well. =A0You have to do a route in VFR=
 conditions a few times, and figure out just where you are on the cigar bef=
ore it is time to descend. =A0With practice, at the right point on the ciga=
r, you can descend through the deck to your desired air patch.<br>

<br>
John<br>
<br>
<br>
On Sep 12, 2011, at 6:34 PM, Dico Reijers wrote:<br>
<br>
Hi Brent,<br>
<br>
Thanks for your reply on the IV-P pressurization. =A0I found it quite helpf=
ul and informative as I figure out the pressurization system.<br>
<br>
From my limited testing so far (flying at 10-12k), I&#39;ve noticed that th=
e pressurization isn&#39;t linear. =A0At 10k my cabin altitude (according t=
o the indicator) is 5k and the PSI is perhaps 2 or 2.5 differential... =A0s=
ince the POH suggests a 8000&#39; cabin at FL220... I am surprised that I c=
an climb an additional 12k and have the cabin altitude only rise an additio=
nal 3k. =A0I was flying at 31&quot; / 2500.<br>

<br>
How do you check for leaks on the ground?<br>
<br>
thanks,<br>
<br>
Dico<br>
<font color=3D"#888888"><br>
<br>
<br>
<br>
--<br>
For archives and unsub <a href=3D"http://mail.lancaironline.net:81/lists/lm=
l/List.html" target=3D"_blank">http://mail.lancaironline.net:81/lists/lml/L=
ist.html</a><br>
</font></blockquote></div><br>

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