Hercules Engines

On Fri, 16 Jan 2004 07:13:54 -0800, "Tarver Engineering"
wrote:


"Phil Miller" wrote in message
news

Hey Splappy,

Do you remember this series of pronouncements;

From: "Tarver Engineering"
Newsgroups: rec.aviation.military
Subject: Do Hercules military aircraft use the same fuel as civilian
aircraft?
Date: Fri, 8 Nov 2002 19:19:37 -0800
snip
wrote in message
Not really. On the T56 engine TIT = (T)urbine (I)nlet (T)empreture.

Yes really, on every jet engine TIT is Total Inlet Temperature.

Yep.

I ask because I came across an interesting paragraph in the T56-A-15
service manual yesterday. Went like this...

"Description and operation of turbine inlet temperature indicating and
control system. [Hmmm, not total, turbine.]

....measures the turbine inlet temperature by means of
thermocouples...Eighteen thermocouple assemblies are mounted in the
turbine inlet casing of each engine...One thermocouple of each assembly
is connected to the turbine inlet temperature indicating system,
and...one...is connected to the electronic datum control system. The 18
indicating system thermocouples are connected in parallel [!!] by the
indicator turbine thermocouple harness assembly, and this signal is
transmitted to a turbine inlet temperature indicator in the engine
instrument panel. The 18 control system thermocouples are connected in
parallel..."

So, let's revise.

From: "Tarver Engineering"

Yes really, on every jet engine TIT is Total Inlet Temperature.

Yes Rick, the thermocouples at the turbine inlet are connected in
series.

Tsk, tsk, tsk ... sticks and stones and all that but for averaging,
themocouples are wired in parallel.

No way, that would be stupid.

Turbine Inlet Temperature is jsut what it says it is. On the T-56 it is
obtained by averaging the output of 18 thermocouples wired in parallel

That is a lot of wire, perhaps you would like to rethink your rediculess
assertion.

and eve though they are as wrong as the rest of us in this thread, the
Air Force, Rolls Royce, Allison, and even the Navy refer to T-5 as
TURBINE INLET TEMPERATURE.

That is fine for the PFM crowd, but quite incorrect.


Have you considered yet, Miller, that your zero knowledge of aircraft makes
for a pretty rediculess archive troll?

For Pete's sake! The word is ridiculous.

Phil
--
Talk sense to a fool and he calls you foolish.
Euripides