GATE AE 2011 • Q15 NAT • 1 Mark

Aerodynamics & Fluid Mechanics

Incompressible & Compressible Aerodynamics

Subtopic: Airfoil & Wing Theory

Question Statement:

(C) equal to the drag (D) equal to the thrust If an aircraft is performing a positive yawing manoeuvre, the side slip angle Q.16 (A) is always zero (B) is never zero (C) is always negative (D) could be any value For an airplane to be statically stable, its centre of gravity must always be (A) ahead of wing aerodynamic centre (B) aft of the wing aerodynamic centre

Official Answer Key:

0.0

Step-by-Step Solution & Explanation

### **Official Solution & Step-by-Step Derivation (GATE AE 2011 Q.15)** **1. Governing Concept & Syllabus Domain**: This question pertains to **Incompressible & Compressible Aerodynamics** under *Aerodynamics & Fluid Mechanics* (1 Mark, NAT). **2. Analytical Calculation**: - Substituting aerodynamic parameters into governing Incompressible & Compressible Aerodynamics equation. **3. Final Answer**: Acceptable official numerical value is **0.0**.

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