GATE AE 2025 • Q39
MCQ • 2 Marks
Flight Mechanics & Space Dynamics
Airplane Performance & Stability
Subtopic: Aircraft Stability & Modes
Question Statement:
A general aviation airplane is gliding with a speed Vg at minimum glide angle.
Which of the following statements is/are true?
Options:
-
(A) Vg is equal to the speed corresponding to the maximum lift to drag ratio of the
airplane.
-
(B) Vg increases with decreasing wing loading when all other parameters remain
constant.
-
(C) Vg increases with decreasing altitude when all other parameters remain constant.
-
(D) Vg increases with increasing altitude when all other parameters remain constant.
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2025 Q.39)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Airplane Performance & Stability** under *Flight Mechanics & Space Dynamics* (2 Marks, 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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