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IL-2 Sturmovik The famous combat flight simulator.

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Old 12-19-2019, 05:44 PM
Col Ninny Col Ninny is offline
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Join Date: Oct 2018
Posts: 36
Default IL-2 BoS - Managing damaged engines

In real life a damaged engine would be run with lowered power and rpm settings and max cooling to reduce the stresses on it and keep it running.

There are a variety of opinions on this in the IL-2 BoS community. My view is that if you reduce the power and rpm you naturally reduce your speed. This means that if you reduce your speed to 200 from 400 it will take you twice as long to get to your destination. It also means you will be running the damaged engine for twice as long increasing the chances of a fail.

Personally, I run engines and rpm at 90% pwr and rpm because it "feels" right. But there is no way to tell and confirm if what we are doing actually works!

When we get a flag saying "First engine is damaged" we have no idea by how much. Thus we have no idea if increasing or decreasing the power, rpm, or cooling rads has any effect whatsoever on keeping the engine running.

The assumption is that the game mechanics/physics will mimic real-life but is there a definitve answer?

What so ye oh wise CEM fanatics!!! What proof is there ? Cheers, Col ninny
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Old 01-08-2020, 07:11 PM
Jumoschwanz Jumoschwanz is offline
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Join Date: Jan 2011
Posts: 276

I don't know what the people are coding into IL2, but I am an expert on the internal combustion engine in real life and the main thing to remember is that wear and stress with an internal combustion engine or ANY mechanical device goes up exponentially with speed.

This means that running at 2000rpm instead of 1000rpm is not going to double the wear, stress and heat from friction, it will at least quadruple it.

Some kinds of damage will stop an engine much more quickly than others, for instance running without oil could stop an engine in seconds, while running it with no coolant might let it run for minutes.

Running with broken parts will could increase engine vibration which could literally shake the engine to pieces along with the aircraft, or tear the engine right off the aircraft.

The severity of oil and coolant leaks will also play into how long the engine will run before it stops.

But in every case the more throttle and boost and rpm used with a damaged engine, it will exponentially shorten how long before it stops running.
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