GATE AE 2016 • Q21 MCQ • 1 Mark

Flight Mechanics & Space Dynamics

Airplane Performance & Stability

Subtopic: Aircraft Stability & Modes

Question Statement:

The d amping ratio in phugoid motion for gliders is usually less compared to powered aircraft because

Options:

  • (A) gliders are unpowered.
  • (B) gliders are light.
  • (C) lift to drag ratio is higher for gliders.
  • (D) gliders fly at low speed.

Official Answer Key:

A

Step-by-Step Solution & Explanation

### **Official Solution & Step-by-Step Derivation (GATE AE 2016 Q.21)** **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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