Hercules Engines

"Gord Beaman" wrote in message
...
"Tarver Engineering" wrote:


"Gord Beaman" wrote in message
.. .
Jim Yanik wrote:


You certainly couldn't parallel two different voltage sources IF
they were 'hard' because huge currents would flow. So on a T-56
engine they do indeed parallel many thermocouples. (I forget how
many now, but there's a bunch) Half are used for the FCU and half
for the Temperature Datum System.

Did you know that the major failure mode for a theromocouple is a short?

Yes John...

Consider, Gord, that making your little friends look less foolish is only
making you look foolish.

Yes John...

Even if you were to make an "average", you would need a "total" first.


Yes John...


Yes John.. (oops)

OK then.

"B2431" wrote in message
...
From: "Tarver Engineering"
Date: 1/22/2004 9:33 PM Central Standard Time
Message-id:


"Gord Beaman" wrote in message
.. .
"Tarver Engineering" wrote:


"Jonathan Stone" wrote in
message
...
In article ,
Tarver Engineering wrote:

No, no, no. The Hercules engine is (as is well-known) a 14-cylinder
sleeve-valve radial.

(Lets see what Tarver makes of that.)

That is a lot of sparkplugs.

Hell John, not near as many as in a C-124...there's 216 in
that!...

My father spent the first few years of WWII changing spark plugs.

Was that before or after he was in the 101st in Bastogne?

He was bored changing spark plugs, so he volenteered for the 101st.

He wasn't bored anymore.

From: "Tarver Engineering"
Date: 1/23/2004 12:51 PM Central Standard Time
Message-id:


"B2431" wrote in message
...
From: "Tarver Engineering"
Date: 1/22/2004 9:33 PM Central Standard Time
Message-id:


"Gord Beaman" wrote in message
.. .
"Tarver Engineering" wrote:


"Jonathan Stone" wrote in
message
...
In article ,
Tarver Engineering wrote:

No, no, no. The Hercules engine is (as is well-known) a 14-cylinder
sleeve-valve radial.

(Lets see what Tarver makes of that.)

That is a lot of sparkplugs.

Hell John, not near as many as in a C-124...there's 216 in
that!...

My father spent the first few years of WWII changing spark plugs.

Was that before or after he was in the 101st in Bastogne?

He was bored changing spark plugs, so he volenteered for the 101st.

He wasn't bored anymore.


Yeah, yeah, sure.

Dan, U. S. Air Force, retired

"B2431" wrote in message
...
From: "Tarver Engineering"
Date: 1/23/2004 12:51 PM Central Standard Time
Message-id:


"B2431" wrote in message
...
From: "Tarver Engineering"
Date: 1/22/2004 9:33 PM Central Standard Time
Message-id:


"Gord Beaman" wrote in message
.. .
"Tarver Engineering" wrote:


"Jonathan Stone" wrote in
message
...
In article ,
Tarver Engineering wrote:

No, no, no. The Hercules engine is (as is well-known) a
14-cylinder
sleeve-valve radial.

(Lets see what Tarver makes of that.)

That is a lot of sparkplugs.

Hell John, not near as many as in a C-124...there's 216 in
that!...

My father spent the first few years of WWII changing spark plugs.

Was that before or after he was in the 101st in Bastogne?

He was bored changing spark plugs, so he volenteered for the 101st.

He wasn't bored anymore.


Yeah, yeah, sure.

If I were you, I'd eat the piece, Dan.

"Gord Beaman" wrote in message
...
Jim Yanik wrote:

(B2431) wrote in
:

Jim Yanik wrote:

"Well,then it violates basic physics.If you have two voltage sources
of
slightly different voltages,currents DO flow between them.That's a
basic principle. And bimetal TCs are simply millivolt voltage
sources."

Yes Jim, what you say is true but it's 'allowed' in this (and
other) cases because the voltage output, although in the
millivolt range, is 'soft'. so the current is extremely low, they
merely 'average' themselves.

You certainly couldn't parallel two different voltage sources IF
they were 'hard' because huge currents would flow. So on a T-56
engine they do indeed parallel many thermocouples. (I forget how
many now, but there's a bunch) Half are used for the FCU and half
for the Temperature Datum System.
--

-Gord.

18 thermocouples, 3 in each can, each thermocouple has 4 wires connected to
it, 2 white, 2 green. 2 wires send signals to the TD amp, the other 2 to the
TIT gauge in the flight station via a terminal block.

Scet

"Scet" wrote:

18 thermocouples, 3 in each can, each thermocouple has 4 wires connected to
it, 2 white, 2 green. 2 wires send signals to the TD amp, the other 2 to the
TIT gauge in the flight station via a terminal block.

Scet

Oops...sorry...half to the TD amp, half to the TIT gauge (not the
FCU) my bad.
--

-Gord.