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Simviation Forum › Current Flight Simulator Series › FS 2004 - A Century of Flight › EGT

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EGT (Read 363 times)

Apr 6^th, 2004 at 7:28am

Smoke2much Offline
Colonel
The Unrepentant Heretic
Sittingbourne, Kent,

Posts: 3879

In the list of assignable commands for FS2004 there are a set of EGT commands:

EGT
EGT1_DEC
EGT1_INC
EGT1_SET
EGT2_DEC
EGT2_INC
EGT2_SET
EGT3_DEC
EGT3_INC
EGT3_SET
EGT4_DEC
EGT4_INC
EGT4_SET
EGT_DEC
EGT_INC
EGT_SET

I imagine that they are something to do with the Engine as there are four of them but beyond that I am clueless.

Any help greatfully appreciated.

Will

Who switched the lights off? I can't see a thing....... Hold on, my eyes were closed. Oops, my bad...............&&

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Reply #1 - Apr 6^th, 2004 at 8:21am

zcottovision Offline
Colonel
YaBB 1G - SP1 loves me!
N. Ireland / EGAC

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Posts: 598

I suspect the _DEC and _INC ones are commands to increase and decrease engine power, and the _SET command would be to set N1 bugs?

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Reply #2 - Apr 6^th, 2004 at 9:04pm

MattNW Offline
Colonel
Indiana

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Posts: 1762

EGT stands for Exhaust Gas Temperature. It's the temperature of the exhaust gasses. Some of the higher performance planes include guages to monitor this. It's important in flying high performance GA aircraft but in the sim it doesn't mean much. You can set the plane on the ground and lean the mixture until the EGT hits the top of the scale and then leave the plane running until it runs out of gas and you will still have an engine.

In the real world however it's used as an indicator of how much to lean the mixture as you gain altitude. I'm not sure the specifics and I imagine that would depend on the specific engine. In the sim however I use it by leaning the mixture until I notice a peak in EGT and then back off just a hair. I usually do this about every three thousand feet. That seems to give me good performance and a decent sounding engine. I wish there were more specifics on things like this though.

In Memory of John Consterdine (FS Tipster)1962-2003

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Reply #3 - Apr 6^th, 2004 at 9:26pm

dave3cu Offline
Colonel
Procrastinate now, don't
put it off.
3CU, Northern Wisconsin, USA

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Posts: 3077

On piston engines the EGT is what you monitor to set your mixture control, unless you have 'auto-mixture' turned on. As you gain altitude , the air is less dense, so you have to lean the mixture so that basically the engine doesn't 'flood'.

With auto-mixture off as you pass 3000 asl, you will start getting warnings (if you have flying tips on) that your engine is losing power due to improper mixture. You then use your your mixture control (the red levers or knobs on the panel or ECU) to lean the mixture(s) 'till the EGT reaches it's max temp.

Cheers,
Dave

At that time [1909] the chief engineer was almost always the chief test pilot as well. That had the fortunate result of eliminating poor engineering early in aviation. Igor Sikorsky

I intend to live forever....so far, so good. Steven Wright

You know....you can just rip up a to-do list.

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Reply #4 - Apr 7^th, 2004 at 5:02am

Smoke2much Offline
Colonel
The Unrepentant Heretic
Sittingbourne, Kent,

Posts: 3879

Thanks guys, that's very helpful Grin

Who switched the lights off? I can't see a thing....... Hold on, my eyes were closed. Oops, my bad...............&&

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Reply #5 - Apr 7^th, 2004 at 11:52am

Skittles Offline
Colonel
N769JC: "Isn't simulating
stimulating?
JAQ: Westover Field, CA (O70)

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Yes, that's very helpful! Never got that in any of my "Flying Lessons"

Thank you!

What do computers and air conditioners have in common?
They both will work perfectly, until you open windows.

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