View Single Post
Old 09-13-2017, 10:16 AM   #4
ken56
Senior Member
 
Join Date: Aug 2017
Location: Dandridge TN
Posts: 260
With all the fancy computer controlled fuel injection now days you would think there would be no differences. There is some physics involved that may explain it somewhat. At altitude the air is cold and dense where as in good 'ol Texas its fairly humid and less dense......cold air is heavier than hot air, denser, so it contains more oxygen molecules per pound. Small aircraft have the means to manually adjust the air/fuel mixture at altitude because they are still pretty much old fashioned carbureted engines, otherwise they could run rich to the point that it would flood out and stop running, depending on altitude.
ken56 is offline   Reply With Quote