ISA TEMPERTURE
temperature changes with altitude
Dear all
I think the IAS temp. is just a calculation method depends on the altitude and the day/ night has no effect.The atmosphere is a gaseous envelope surrounding the earth. Its
characteristics are different throughout the world. For this reason, it is necessary to
adopt an average set of conditions called the International Standard Atmosphere
This ISA model is used as a reference to compare real atmospheric conditions
and the corresponding engine/aircraft performance. The atmospheric conditions will
therefore be expressed as ISA +/- ΔISA at a given flight level day or night