Exhaust pressure tap

[Ken Thompson III]

Got it Tom, thanks.
Ken
----- Original Message ----- 
From: "Tom Simes" <nsrca at shinymetalass.com>
To: <discussion at nsrca.org>
Sent: Wednesday, April 27, 2005 5:14 PM
Subject: Re: Exhaust pressure tap


> On Wed, 27 Apr 2005 16:28:16 -0400
> "Ken Thompson III" <mrandmrst at comcast.net> wrote:
>
>> In my new pattern plane this season, I'm using a Super Tigre 2300 in
>> an  Excelleron 90.  My Mueller header and KS canister does not have a
>> pressure  tap installed.
>> Is there any problem installing the tap in the header, before the
>> extension?  I thought this would eliminate the concern of having the
>> tube exposed along  with the canister.  I know where Bob Pastorello
>> installed his, however he  mentioned to me that he thought "in the
>> header" was the norm, years ago. Any thoughts would be greatly
>> appreciated, I have to get this thing in the  air, I definitely need
>> the practice.
>>
>> Ken
>
> From a practical standpoint, the high exaust gas velocity in the header
> means it is one of the lowest pressure regions of the exaust system.
> Drilling a hole in the header could also weaken it quite a bit.  For
> maximum pressure, you would want the pressure tap to be between the
> header and any baffles, where the cross sectional area of the exaust
> system is the largest.
>
> http://www.macspro.com/pressure.asp
>
> -- 
> Tom
>
> _____________________________________________________________________
>
>       |  ,  |               Tom Simes
> ---------(@)---------        AMA 230068
>        --|--                NSRCA 3830
>          '                  nsrca at shinymetalass.com
> =================================================
> To access the email archives for this list, go to
> http://lists.f3a.us/pipermail/nsrca-discussion/
> To be removed from this list, go to http://www.nsrca.org/discussionA.htm
> and follow the instructions.
>
> List members email returned for mailbox full will be removed from the 
> list.
> 

=================================================
To access the email archives for this list, go to
http://lists.f3a.us/pipermail/nsrca-discussion/
To be removed from this list, go to http://www.nsrca.org/discussionA.htm
and follow the instructions.

List members email returned for mailbox full will be removed from the list.