A jet-powered airplane is steadily climbing at a rate of 10 m/s. The air density is
0.8 kg/m3, and the thrust force is aligned with the flight path. Using the
information provided in the table below, the airplane's thrust to weight ratio is
______ (rounded off to one decimal place).
Airplane speed 80 m/s
Lift coefficient, CL 0.8
Aspect ratio 6
Oswald efficiency factor 0.8
Zero-lift drag coefficient 0.02
Official Answer Key:
0.0
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2025 Q.52)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Incompressible & Compressible Aerodynamics** under *Aerodynamics & Fluid Mechanics* (2 Marks, 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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