Mailing List lml@lancaironline.net Message #42991
From: Walter Atkinson <walter@advancedpilot.com>
Sender: <marv@lancaironline.net>
Subject: Re: [LML] Re: TSIO-550 turbine inlet probes
Date: Mon, 09 Jul 2007 21:05:08 -0400
To: <lml@lancaironline.net>
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Colyn:

It is important to understand WHY.  The gas IS cooler near the TIT probe than it is near the EGT probe.  That is a fact of physics.  The reading is not... for the reason you just explained--the differing refractory times on the probes.

Walter


On Jul 9, 2007, at 12:39 PM, Colyn Case on earthlink wrote:

Walter said,

The TIT GAS is cooler than the exhaust GAS... 
 
 
I haven't talked to one tsio-550 driver that has cooler indicated Turbine Inlet Temps than indicated EGT's.
One explanation given is that the EGT probe situated in a dedicated pipe sees one exhaust event every 2 revolutions while the TIT probe sees 3.


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