Question

Which of the following is used to obtain the altitude from the static pressure?

(a) International atmospheric data

(b) Standard atmospheric model

(c) International atmospheric tables

(d) Standard atmospheric tables

I had been asked this question in semester exam.

My query is from Air Data Equations topic in portion Air Data Systems, Altitude and Heading Reference of Avionics

Answer 1

Correct choice is (b) Standard atmospheric model

To elaborate: To determine the altitude from the measured static pressure, the standard atmospheric model has been established. The standard model gives the relation between a height and the properties of the atmosphere as the solution to a differential equation relating the difference in pressure.