Static air temperature
Temperature of air around an aircraft, unaffected by the passage of an aircraft through it.
Outside air temperature
Temperature measured at a given point outside of direct sunlight
Total air temperature
Temperature the aircraft skin feels,
Is TAT smaller or greater than SAT?
Greater due to ram rise in temperature that occurs because of dynamic heating.
Total air temperature facts
-Displayed on display units.
-TAT always higher than SAT, difference is ram rise.
-Ram rise is approx (TAS/100)^.
-Found in CROs blue section.
-TAT sent to air data computer.
Why TAT?
Determines formation of ICE.
Absolute zero
Minimum possible temperature.
Particles have minimum vibration.