Discussion
The thrust-to-weight ratio used on a constraint diagram is conventionally evaluated at
Answer: C
Correct answer: Sea level static, with per-constraint corrections
Thrust-to-weight on a constraint diagram is conventionally referred to the sea level static rating, because that is how engines are specified and selected. Each constraint is then corrected to that datum by dividing the thrust it actually requires by the lapse factor appropriate to its altitude and Mach number.
A cruise requirement of \( T/W = 0.062 \) at 11,000 m where the engine gives \( 0.28 \) of its static thrust corresponds to \( 0.062/0.28 = 0.221 \) at sea level. Without that correction, constraints evaluated at different altitudes could not be plotted on one axis.
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