Oil entry temp limit for the DB 601E is 80°, 85° short time maximum. Radiators open does a lot for cooling, and it is no miracle that the oil temperature will only just go into overheating, as long as you are on cooler maps. After all, that is what the plane was designed for. Open rads were around 300mm and caused a lot of drag.
The radiators on the 109 were supposed to be on auto during climbs and closed (more correct "fast flight setting") during level flight. If you want to get the best performance out of the plane, you'll need to close radiators and if you want an overheat challenge, fly the plane on hotter maps, for instance a Desert map.
I'm getting the 109F-4 to about 600 km/h, exact figures varying with atmospheric conditions.
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09-21-2012, 04:20 PM
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