A glider weighing 3300 N is flying at 1000 m above sea level. The wing area is 14.1 m2 and the air
density is 1.23 kg/m3. Under zero wind conditions, the velocity for maximum range is __________
m/s.
α (deg) C L CD C L/CD
11 1.46 0.0865 16.9
9 1.36 0.0675 20.1
7 1.23 0.0535 22.9
5 1.08 0.0440 24.5
3 0.90 0.0350 25.7
1 0.70 0.0275 25.4
-1 0.49 0.0220 22.2
-3 0.25 0.0180 13.8
Official Answer Key:
0.0
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2016 Q.53)**
**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**.
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