kgwilson Posted March 10 Share Posted March 10 Below 25 degrees is Winter? Well maybe in the tropics. At 30 deg South Winter is when the ambient temperature is below 15 deg & further South that is positively balmy. Link to comment Share on other sites More sharing options...
skippydiesel Posted March 10 Share Posted March 10 1 hour ago, kgwilson said: Below 25 degrees is Winter? Well maybe in the tropics. At 30 deg South Winter is when the ambient temperature is below 15 deg & further South that is positively balmy. They are just figures for engine cooling management that I adopted at the time - seemed to work for that aircraft. Personally, I find any temperature below 21C to be cold and above 35C to starting to get a tad warm. 40C is hot , 45C a bit of a scorcher. If you add significant humidity to 30C and above the perceived temperature seems to be about 5C more and getting a bit sweaty😎 Link to comment Share on other sites More sharing options...
facthunter Posted March 10 Share Posted March 10 Ambient has much more effect on oil temperatures than the head temps as the difference as a % varies more and heat flow is proportional to temp. difference. A slow airspeed make it all MORE critical. Nev 1 Link to comment Share on other sites More sharing options...
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