There were many design flaws in the ME 262, however jet engines are 90% thermal efficient, they don't get hot like internal combustion engines, that are around 30% efficient.

Oh, boy! Another homegrown expert. He knows it all...

The actual WWII pilots are, of course, completely wrong :)

Depends on how fast you are flying. Go past 700 kph and you'll never overheat, even at 100%.

Soooo ... shall we start another "0.50 cal is porked" debate now ?

The 109's are porked. Perhaps you experts could enlighten us, anyone from TD most welcome to add their 2 cents to the discussion. FWIW I think they are 50kph too slow. Don't mention the concrete elevator please or the ai's landing speed which is below stall speed of g6 etc etc.

And what precisely makes you think so?

I was hoping someone could work it out for themselves and enlighten the rest of us! If you're fishing for clues, er, start with engine set to 1.3ata, which according to pilot's manual should produce at least 2500rpm up to maximum of 2600rpm. At this setting, at sea level, a g6 should reach 520kph\530kph. If you can do better in game, at that setting, more than 420kph, do tell us how....

Maybe you shouldn't pay too close attention to gauges, they've been wrong since v1.0 (roughly 10 years). In particular at medium power settings. Try flying full power, that's the only point where game should match real life. And it does.

Well that's the point I'm trying to make, 109's are porked. At full power in game (110%), we only get what in RL a 109g could achieve at 1.3ata. In RL you could still push the throttle out to 1.42ata for brief periods. IIRC at 1.42ata max level speed was about 580kph, the climb rate must have been pretty amazing as well.