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-   -   4.11 - Engine: Overheat! (http://forum.fulqrumpublishing.com/showthread.php?t=29054)

Aviar 01-15-2012 11:40 PM

Quote:

Originally Posted by Treetop64 (Post 380327)
I don't want to come off as self-promoting, but I posted this in another thread and thought it would be worthwhile to post here, too:

"Generally speaking, to get the most performance out of any engine in the sim for the longest practical time, you want to set a high manifold pressure, combined with a moderately reduced RPM, and as high a mixture as practical for a given altitude. Also, you may want to open the radiator one or two steps. Moreover, you want to fly in a manner that keeps your speed as high as possible - the more air that is blasting into the radiator for liquid-cooled engines, and through the cylinder head fins for air cooled engines, the cooler your engine will run. Again, this is a general rule of thumb for managing engines during combat in the game.

Can't stress this enough, but I highly recommend turning off HUD messages, and get used to reading the gauges to monitor the engine. With v4.11 you can do that with confidence now that the gauges show what they should show. I've said it many times and I'll say it again: the triggering of the ENGINE OVERHEAT message is way too conservative. I've long flown without HUD messages and have paid close attention to the gauges, and have gotten good performance out of the engines on warm and cold maps. Once I turned on HUD messages however, I found that the ENGINE OVERHEAT message came on far sooner than I would have otherwise started worrying about the condition of the engine. I just turned it off again and haven't used it since. If I used the ENGINE OVERHEAT message as a guide to start trimming back on engine settings, I would never get any decent performance out of the machine.

Learn to use the gauges, throttle, RPMs, manifold pressure, and radiator; not be a slave to the OVERHEAT message; practice consistently, and I promise you will get more performance out of your plane."

How does one "...set a high manifold pressure..."...?

Aviar

MadBlaster 01-15-2012 11:43 PM

Set it to maintain your desired rpm and maybe a little more, not too much or you just generate heat.

Treetop64 01-16-2012 12:51 AM

Quote:

Originally Posted by Aviar (Post 380364)
How does one "...set a high manifold pressure..."...?

Aviar

With the throttle. How you use the throttle determines how much air (hence, oxygen) goes into the combustion chamber with the fuel and is ignited.

ElAurens 01-16-2012 03:42 AM

On an aircraft with a constant speed prop, you set the rpm with the prop control, and the engine manifold pressure with the throttle.

To get a high manifold pressure you would set a low RPM with a large throttle opening.

IvanK 01-16-2012 03:55 AM

Quote:

Originally Posted by ElAurens (Post 380408)
On an aircraft with a constant speed prop, you set the rpm with the prop control, and the engine manifold pressure with the throttle.

To get a high manifold pressure you would set a low RPM with a large throttle opening.


Within limits lest you get detonation :)

F19_Klunk 01-16-2012 05:57 AM

A good read if you want to know more about engine management, Manifold pressure etc:
http://www.advancedpilot.com/downloads/prep.pdf

ElAurens 01-16-2012 12:25 PM

Quote:

Originally Posted by IvanK (Post 380410)
Within limits lest you get detonation :)

This is true, but not in the sim.

fruitbat 01-16-2012 07:25 PM

Quote:

Originally Posted by ElAurens (Post 380494)
This is true, but not in the sim.

Just curious, what about clod?

MadBlaster 01-16-2012 08:11 PM

Quote:

Originally Posted by ElAurens (Post 380494)
This is true, but not in the sim.

that's why i said generate heat. i think they modeled it as a heat penalty.

Treetop64 01-16-2012 10:10 PM

Quote:

Originally Posted by F19_Klunk (Post 380422)
A good read if you want to know more about engine management, Manifold pressure etc:
http://www.advancedpilot.com/downloads/prep.pdf

Some very good info here. Thanks for posting!


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