Originally Posted by mutt
Having a discussion regarding the use of the aspirated TAT guage as a means of obtaining OAT on the ground.
Considering the heat generated off the gound, sitting in direct sunlight or even the exhaust heat from ground power trucks/air conditioning trucks.
At what point would you consider the TAT to be accurate?
Rgds.
Mutt
If you're referring to the TAT on the 777, Mutt..having flown this airplane for over 8 yrs now, its amazingly accurate while sitting on the ground, however; nothing beats 'the real thing' from ATIS/MET.