Pilots don't control the airflow to save on costs, they control the air temperature to save fuel costs.
-PJ
“Pilots don’t control the airflow to save on costs, they control the air temperature to save fuel costs.”
I don’t understand your statement. In the jets I fly there is a thermostat that controls cabin temperature. The range is from about 65 to 85 degrees. It modulates a valve that controls the cooling effect on the air used for pressurization. The fuel flow meters do not change in the slightest as I change the temperature.
What is the basis for your statement?