Question

The flight path is calculated relative to ________

(a) air mass

(b) still air condition

(c) air mass and still air condition

(d) airspeed

This question was posed to me in examination.

I'd like to ask this question from Effect of Wind on Climb Performance and Descent Performance topic in section Climb and Descent Performance of Aircraft Performance

Answer 1

Correct answer is (a) air mass

For explanation: The flight path is calculated relative to air mass. This resulted in the development of the theory by experimenting in the still air condition. In actual performance of the aircraft the relative velocity is not effected by the reference axis as they are velocity axes.