GATE AE 2018 • Q41 NAT • 2 Marks

Flight Mechanics & Space Dynamics

Airplane Performance & Stability

Subtopic: Aircraft Stability & Modes

Question Statement:

A statically-stable aircraft has a CL𝛼= 5 (where the angle of attack, α, is measured in radians). The coefficient of moment of the aircraft about the center of gravity is given as CM,c.g = 0.05 - 4𝛼. The mean aerodynamic chord of the aircraft wing is 1 m. The location (positive towards the nose ) of the neutral point of the aircraft from the center of gravity is ______ (in m, accurate to two decimal places).

Official Answer Key:

0.0

Step-by-Step Solution & Explanation

### **Official Solution & Step-by-Step Derivation (GATE AE 2018 Q.41)** **1. Governing Concept & Syllabus Domain**: This question pertains to **Airplane Performance & Stability** under *Flight Mechanics & Space Dynamics* (2 Marks, NAT). **2. Analytical Calculation**: - Substituting aerodynamic parameters into governing Airplane Performance & Stability equation. **3. Final Answer**: Acceptable official numerical value is **0.0**.

Practice This in Real CBT Exam Interface

Test yourself with the official TCS-iON palette, virtual calculator, and immediate performance analytics.

Launch CBT Mock Test