Question

What is the relation between altitude and the aircraft range?

(a) Altitude increases with increase in the aircraft range

(b) Altitude decreases with increase in the aircraft range

(c) Altitude increases with decrease in the aircraft range

(d) Altitude is not effected by the aircraft range

This question was addressed to me in a national level competition.

This intriguing question originated from Effect of WAT on Cruise Performance topic in section Cruising Performance of Aircraft Performance

Answer 1

Right option is (a) Altitude increases with increase in the aircraft range

To explain: Altitude increases with increase in the aircraft range. As the altitude increases the ambient relative pressure decreases and it is further decreased due to the decreasing effect of the temperature with altitude.