Discussion
An engine of mass \( 6000 \) kg is mounted \( 9.0 \) m outboard. Its bending relief moment on the wing at 1 g is approximately
Answer: B
Correct answer: 530 kN m
Convert the mass to weight and multiply by the arm:
\[ W = 6000 \times 9.81 = 58.9\ \mathrm{kN} \]
\[ M = 58.9 \times 9.0 = 530\ \mathrm{kN\,m} \]
This moment acts downward at 1 g, opposing the upward bending the lift produces, so it relieves the wing root and allows a lighter structure. The relief grows with load factor, since both the lift and the engine's inertia scale together, which is why the benefit is greatest exactly where the structure is most highly loaded.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development