Radiator Question

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I strongly suggest you read the 4.11 Manual/Guide. There is an incredible amount of information there. As an example, here is portion from the Guide concerning the new overheat model:

Improved radiator & overheat modeling

4.11 introduces a more detailed and more accurate radiator model. It is different from the previous model in many ways, the main differences being:

• radiator settings now have an impact on both water/cylinder and oil temperature
• outside temperature now has an impact on oil temperatures
• engine rpm has a bigger impact
• impact of WEP is dependent on extra power generated
• mixture setting has an impact
• the density of the air has an impact
• aircraft speed has a bigger impact
• there is no longer a fixed period after which damage occurs in case of overheat
• introducing a random chance for damage depending on how strongly the engine
overheats
• type of damage is depending on if it is water/cylinder or oil overheating
You will generally find that the planes overheat a lot more, in particular if you are not on a cold map in fast level flight. As a guideline, on hotter maps you can expect fighters to be able to sustain about 70% power at 70% pitch without overheating radiators closed, for bombers it is somewhat more. The values in many cases are reasonably close to real life maximum continuous settings (please don't go by cockpit gauges, they aren't always accurate). If you start a low speed full power dogfight with a closed radiator, you can expect the engine to overheat rapidly and to get damaged quickly. War emergency power settings should therefore only be used in an emergency, otherwise your plane might get destroyed without your enemy even firing a shot.

To keep engine temperatures low, remember:

• use low rpm (reduce pitch), in particular oil temperature are sensitive towards rpm
• use low throttle settings (and avoid WEP)
• open the radiator
• fly faster (don't climb at too low speeds)
• use an as rich mixture as possible


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