GATE_AE_2027_MOCK_04_Q50
GATE 2027 Aerospace Engineering All-India Master Mock 04 (Aerospace Structures, Thin-Walled Beams & Aeroelasticity)
MSQ · 2 Marks
Flight Mechanics & Space Dynamics • Dynamic Stability • Dutch Roll, Spiral & Roll Modes
Lateral-directional dynamic stability matrices decompose into which three standard classical modes?
(A) Dutch Roll mode
(B) Spiral mode
(C) Roll subsidence mode
(D) Phugoid mode
Answer Key:
A,B,C
Step-by-Step Verified Solution
### Solution: The three classical lateral-directional modes are Dutch Roll (coupled yaw-roll oscillation), Spiral mode (slow aperiodic mode), and Roll Subsidence mode (fast aperiodic roll damping). Phugoid is longitudinal. Correct: A, B, C.