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GATE 2019 AE – Question 19

Flight Mechanics & Space Dynamics · Special topics: Equations of motion, Euler angles, longitudinal and lateral-directional modes, Hohmann orbital transfers · 1 mark · Multiple choice

Which response shown in the figure represents a dynamically unstable airplane?

Diagram for GATE 2019 AE question 19
  1. Response A
  2. Response B
  3. Response C
  4. Response D

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Show answer and explanation

Correct answer: (A) Response A

Explanation

Dynamic stability concerns the time history after a disturbance. Response A grows away from equilibrium, indicating divergence and dynamic instability. The other plotted responses decay or settle instead of growing. Select A.

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