GATE_AE_2027_MOCK_02_Q24
GATE 2027 Aerospace Engineering All-India Master Mock 02 (Compressible Aerodynamics & High-Speed Propulsion)
MCQ · 1 Mark
Flight Mechanics & Space Dynamics • Dynamic Stability • Phugoid and Short Period Modes
The longitudinal dynamic stability of an airplane typically consists of two distinct oscillatory modes known as:
(A) Short-period mode and Phugoid mode
(B) Dutch roll and Spiral mode
(C) Roll subsidence and Aperiodic plunge
(D) Torsional flutter and Vortex shedding
Answer Key:
A
Step-by-Step Verified Solution
### Solution: Longitudinal motion decomposes into a heavily damped, high-frequency Short-Period mode and a lightly damped, low-frequency Phugoid (trajectory) mode. Correct: A.