For a conventional airplane in straight, level, constant velocity flight condition,
which of the following condition(s) is/are possible on Euler angles (𝜙, 𝜃, 𝜓), angle
of attack (𝛼) and the sideslip angle (𝛽)?
Options:
(A) 𝜙 = 0, 𝜃 = 2, 𝜓 = 0, 𝛼 = 2, 𝛽 = 0
(B) 𝜙 = 5, 𝜃 = 0, 𝜓 = 0, 𝛼 = 2, 𝛽 = 0
(C) 𝜙 = 0, 𝜃 = 3, 𝜓 = 0, 𝛼 = 3, 𝛽 = 5
(D) 𝜙 = 0, 𝜃 = 5, 𝜓 = 0, 𝛼 = 2, 𝛽 = 5
Official Answer Key:
A
Step-by-Step Solution & Explanation
### **Official Solution & Step-by-Step Derivation (GATE AE 2022 Q.45)**
**1. Governing Concept & Syllabus Domain**:
This question pertains to **Structural Mechanics** under *Aerospace Structures* (2 Marks, MCQ).
**2. Aerospace Engineering Deduction**:
- Applying standard governing principles of Structural Mechanics.
- Option **(A)** matches the analytical derivation and official criteria.
**3. Final Answer**:
Correct Option is **(A)**.
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