GATE AE 2026 • Q23 MCQ • 1 Mark

Flight Mechanics & Space Dynamics

Airplane Performance & Stability

Subtopic: Aircraft Stability & Modes

Question Statement:

Which of the following statements is/are TRUE about the stability of an aircraft?

Options:

  • (A) Static stability of an aircraft is sufficient to guarantee its dynamic stability
  • (B) Static stability of an aircraft is related only to its initial tendency to return towards the equilibrium position from which it is disturbed
  • (C) An aircraft may be dynamically unstable even if it is statically stable
  • (D) Dynamic stability is related to the time history of aircraft motion after being disturbed from its equilibrium position

Official Answer Key:

A

Step-by-Step Solution & Explanation

### **Official Solution & Step-by-Step Derivation (GATE AE 2026 Q.23)** **1. Governing Concept & Syllabus Domain**: This question pertains to **Airplane Performance & Stability** under *Flight Mechanics & Space Dynamics* (1 Mark, MCQ). **2. Aerospace Engineering Deduction**: - Applying standard governing principles of Airplane Performance & Stability. - Option **(A)** matches the analytical derivation and official criteria. **3. Final Answer**: Correct Option is **(A)**.

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