Question

At steady state flight condition

(a) T>D

(b) T<D

(c) T=D

(d) T≠D

I got this question during an interview for a job.

I want to ask this question from Aerodynamic Relationships topic in chapter Aircraft Force Systems and the Equations of Motion of Aircraft Performance

Answer 1

Correct choice is (c) T=D

The best explanation: At steady state flight condition the thrust produced by the aircraft is same as the drag produced by the aircraft i.e. T=D. At this state the minimum power speed is given by \(\frac{1}{\sqrt[4]{3}}\)=Vmd where Vmd is minimum drag speed.