Soviet fighters and 4.12

[jameson]

I'm curious about "real 109 pilots were not allowed to widely open radiators because it would cause too much drag", could have been on very early 109's, I guess, but 109's were normally flown with rads set to automatik. This was done to keep the engine temp at optimum for the engine, somewhere around 90c in and 115c out IIRC. Drag was also pretty minimal, open was only 52mm wide or 2 inches max, closed was 18mm or about 3/4 in. from memory.
What circumstances would you ever want to fly with rads wide open in RL? In game there is a supposed advantage with closed rads but open? Flying me109's ingame by the book, the temp guage just about hits 40c, (just about permissable RL take off temp!), so I now fly at 100/110% throttle ingame when in combat and temps barely reach 80c. Something seriously wrong with the new temp model as far as 109's go. They are also too slow when flown by the book, F4 109 at 110% should reach 590kph, but ingame....